UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K
x
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20182021
OR
¨
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission file number: 001-35418
epam-20211231_g1.jpg
EPAM SYSTEMS, INC.
(Exact name of registrant as specified in its charter)
Delaware22-3536104
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification No.)
Delaware41 University DriveSuite 20222353610418940
(State or other jurisdiction of
incorporation or organization)
Newtown
Pennsylvania
(Address of principal executive offices)
(I.R.S. Employer
Identification No.)
Zip code)
EPAM Systems, Inc.
41 University Drive,
Suite 202
Newtown, Pennsylvania 18940
(Address of principal executive offices, including zip code)
267-759-9000
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classEach ClassTrading SymbolName of each exchangeEach Exchange on which registeredRegistered
Common Stock, par value $0.001 per shareEPAMNew York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act: None.
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes   x  No ¨
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  x
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x     No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x     No  ¨
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”filer,” “smaller reporting company,” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filerxAccelerated filer¨Emerging growth company
Non-accelerated filer
¨ (Do not check if a smaller reporting company)
Smaller reporting company¨
Emerging growth company
¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes ¨    No  x
As of June 30, 20182021 the aggregate market value of the registrant’s common stock held by non-affiliates of the registrant was approximately $6,392 million$27,963,532,231 based on the closing sale price as reported on the New York Stock Exchange. Solely for purposes of the foregoing calculation, “affiliates” are deemed to consist of each officer and director of the registrant, and each person known to the registrant to own 10% or more of the outstanding voting power of the registrant.
The numberAs of February 11, 2022, there were 56,878,539 shares of common stock $0.001 par value, of the registrant outstanding as of February 12, 2019 was 54,177,444 shares.outstanding.
DOCUMENTS INCORPORATED BY REFERENCE
The registrant intends to file a definitive Proxy Statement for its 20192022 annual meeting of stockholders pursuant to Regulation 14A within 120 days of the end of the registrant’s fiscal year ended December 31, 2018.2021. Portions of the registrant’s Proxy Statement are incorporated by reference into Part III of this Annual Report on Form 10-K. With the exception of the portions of the Proxy Statement expressly incorporated by reference, such document shall not be deemed filed with this Annual Report on Form 10-K.




EPAM SYSTEMS, INC.
FORM 10-K
FOR THE YEAR ENDED DECEMBER 31, 20182021
TABLE OF CONTENTS
Page
In this annual report, “EPAM,” “EPAM Systems, Inc.,” the “Company,” “we,” “us” and “our” refer to EPAM Systems, Inc. and its consolidated subsidiaries.
“EPAM” is a trademark of EPAM Systems, Inc. “ISO 9001:2015” and “ISO 27001:2013” are trademarks of the International Organization for Standardization. “ISAE” is a trademark of the International Federation of Accountants. All other trademarks and servicemarks used herein are the property of their respective owners.
Unless otherwise indicated, information contained in this annual report concerning our industry and the markets in which we operate, including our general expectations and market position, market opportunity and market share, is based on information from various sources (including industry publications, surveys and forecasts and our internal research), on assumptions that we have made, which we believe are reasonable, based on such data and other similar sources and on our knowledge of the markets for our services. The projections, assumptions and estimates of our future performance and the future performance of the industry in which we operate, are subject to a high degree of uncertainty and risk due to a variety of factors, including those described under “Item 1A. Risk Factors” and elsewhere in this annual report. These and other factors could cause results to differ materially from those expressed in the estimates included in this annual report.



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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
This annual reportAnnual Report on Form 10-K contains estimates and forward-looking statements, principally in “Item 1. Business,”Business”, “Item 1A. Risk Factors” and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Our estimates and forward-looking statements are mainly based on our current expectations and estimates of future events and trends, which affect or may affect our businesses and operations. Those future events and trends may relate to, among other things, the anticipated impact of the COVID-19 pandemic and political or civil unrest or military action in the geographies where we conduct business and where our operations are located and the effect that those events may have on our revenues, operations, access to capital, profitability and customer demand. Although we believe that these estimates and forward-looking statements are based upon reasonable assumptions, they are subject to several risks, uncertainties and uncertaintiesassumptions as to future events that may not prove to be accurate and are made in light of information currently available to us. Important factors, in addition to the factors described in this annual report, may materially and adversely affect our results as indicated in forward-looking statements. You should read this annual report and the documents that we have filed as exhibits hereto completely and with the understanding that our actual future results may be materially different from what we expect.
The words “may,” “will,” “should,” “could,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “intend,” “potential,” “might,” “would,” “continue” or the negative of these terms or other comparable terminology and similar words are intended to identify estimates and forward-looking statements. Estimates and forward-looking statements speak only as of the date they were made.made and, except to the extent required by law, we undertake no obligation to update, to revise or to review any estimate and/or forward-looking statement because of new information, future events or other factors. Estimates and forward-looking statements involve risks and uncertainties and are not guarantees of future performance. As a result of the risks and uncertainties described above, the estimates and forward-looking statements discussed in this annual report might not occur and our future results, level of activity, performance or achievements may differ materially from those expressed in these forward-looking statements due to, including, but not limited to, the factors mentioned above, and the differences may be material and adverse. Because of these uncertainties, you should not place undue reliance on these forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as may be required under applicable law.



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GEOGRAPHICAL REFERENCES

We use the collective terms “CIS” and “APAC” to describe a portion of our geographic operations and assets. In our operations, CIS refers to Armenia, Belarus, Kazakhstan, Russia and Ukraine. APAC, which stands for Asia Pacific, includes all of Asia (including India) and Australia.


PART I
Item 1. Business
Company Background
EPAM is a leadingdelivers end-to-end value to its customers by leveraging its advanced software engineering heritage with business and experience consulting to become one of the foremost global provider of software product development and digital platform engineeringtransformation services to many Fortune 500 and 1000 customers located around the world, primarily in North America, Europe, Asia and Australia.provider. We focus on helpingbuilding long-term partnerships with our customers thrive in a market that is constantly challenged by the pressures of digitization through our innovative strategy and scalable software solutions, high qualityintegrated advisory, business consulting and experience design, and a continually evolving mix of advanced capabilities, blendingcapabilities. We support our engineering and technology capabilities with business and experience consulting to deliver true end-to-end value. We focus on building long-term partnerships with customers while enabling them to reimagine their businesses through a digital lens. Our industry expertise includes financial services, travel and consumer, software and hi-tech, business information and media, life sciences and healthcare, as well as other industries in which we are continuously growing.
Our historical core competency, software development and product engineering services, andcombined with our work with global enterprise leaders in enterprise software platforms and emerging technology companies, created our foundation for the evolution of our other offerings, which include advanced technology software solutions, intelligent enterprise services and digital engagement. Our strategic acquisitions have expanded our geographic reach and service capabilities such asto include digital strategy and design, consulting and test automation. Weautomation and we expect our strategic acquisitions will continue to enable us to offer a broader range of services to our customers from a wide variety of locations.
Business Strategy
Our service offerings have been evolvingcontinuously evolve to provide more customized and integrated solutions to our customers where we combine best-in-class software engineering with customer experience design, business consulting and technology innovation services. We are continually expanding our service capabilities, moving beyond traditional services into business consulting, design and physical product development and areas such as artificial intelligence, robotics and virtual reality.
EPAM’s key service offerings and solutions include the following practice areas:
Engineering
Our engineering foundation underpins how we architect, build and scale next-generation software solutions and agile delivery teams. Our engineering expertise allows us to build enterprise technologies that improve business processes, offer smarter analytics and result in greater operational excellence through requirements analysis and platform selection, deep and complex customization, cross-platform migration, implementation and integration.
We use our experience, custom tools and specialized knowledge to integrate our customers’ chosen application platforms with their internal systems and processes and to create custom solutions filling the gaps in their platforms’ functionality in order to address the needs of the customers’ users and customers. We address our customers’ increased need for tighter enterprise integration between software development, testing and maintenance with private, public and mobile infrastructures through our infrastructure management services. These solutions cover the full lifecycle of infrastructure management including application, database, network, server, storage and systems operations management, as well as monitoring, incident notification and resolution. We deliver maintenance and support services through our proprietary distributed project management processes and tools, which reduce the time and costs related to maintenance, enhancement and support activities.
We have deep expertise and the ability to offer a comprehensive set of software product development services including product research, customer experience design and prototyping, program management, component design and integration, full lifecycle software testing, product deployment and end-user customization, performance tuning, product support and maintenance, managed services, as well as porting and cross-platform migration. We focus on software products covering a wide range of business applications as well as product development for multiple mobile platforms and embedded software product services.


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Table of Contents
Operations
We turn our customers’ operations into intelligent enterprise hubs with our proprietary platforms, integrated engineering practices and smart automation. Developing a digital experience or product from end-to-end requires input and expertise from a variety of professionals with a broad range of skills. Our multidisciplinarymulti-disciplinary teams and global delivery framework come together to deliver well-rounded technology solutions that bring a competitive advantage to our customers. In addition to utilizing our dedicated delivery centers, which allow us to deploy key delivery talent, we work closely with leading companies in various industries to enable our customers to better leverage technology and address the simultaneous pressures of driving value for their consumer and offering a more engaging experience.
Optimization
We turn process optimization into real transformation by using process automation and cognitive techniques to transform legacy processes and deliver streamlined operations that increase revenues and reduce costs for our customers. We rely on our teams, methodologies and tools to optimize every stage of software delivery for improved quality and better features with each release.
We maintain a dedicated group of testing and quality assurance professionals with experience across a wide range of technology platforms and industry verticals, who perform software application testing, test management, automation and consulting services focused on helping customers improve their existing software testing and quality assurance practices. We employ industry-recognized and proprietary defect tracking tools and frameworks to deliver a comprehensive range of testing services that identify threats and close loopholes to protect our customers’ business systems from information loss.
Consulting
Over the years, as a complement to our core engineering skills, we have added capabilities in business consulting to give us an agile, hybrid approach to the market. Our consulting services drive deeper relationships as we help our customers with larger and more complex challenges. Our industry, technologyintegrated consulting teams – across Business, Experience, Technology and experience consulting services are interconnectedData – apply a systems thinking mindset to deliver maximum impact forget to the core of our customers.clients’ challenges. The functional business expertise of our professionals is supplemented by a thorough understanding of technology platforms and their interactions as well as application of data science and machine learning to deliver our best insights into our customers’ business.
Our technical advisory services help customers stay ahead of current technology changes and innovate, where innovation beyond technology is also delivered through collaborative workshops, challenges and new organizational models.
Design
We apply design thinking to digital and service strategy, user experience and the product lifecycle with a focus on innovative design ideas and product development. Our digital and service design practice provides strategy, design, creative and program management services for customers looking to improve the user experience.
We are continuously looking to strengthen and grow our design and consulting practices as evidenced by recent business acquisitions. Duringour 2018 we acquiredstrategic acquisitions of Continuum Innovation LLC, which will enhanceenhances our consulting, physical design and product development capabilities, and Think Limited, which will enhanceenhances our global product and design offerings.offerings, and our 2021 acquisition of Emakina Group, which enhances our ability to deliver creative solutions, personalized experiences, and next generation digital products.

Global Delivery Model
We believe the development of a robust global delivery model creates a key competitive advantage, enabling us to better understand and meet our customers’ diverse needs and to provide a compelling value proposition. We continuously grow our delivery platform both organically and through strategically acquired locations and personnel with diversified skills that support our strategy. We had 26,760 revenue generating personnel as of December 31, 2018, which mainly includes our core information technology professionals as well as designers, consultants and scientists.
We serve our customers through on-site, off-site and offshore locations across the world and use strategically located delivery centers to offer a strong, diversified and cost-effective delivery platform. Our largest delivery centers are located in Belarus, Ukraine and Russia.
As of December 31, 2018, we had 8,242 IT professionals located in Belarus. The majority of these IT professionals are located in Minsk, the capital of Belarus, which is well-positioned to serve as a prime IT outsourcing destination given its strong industrial base and established educational infrastructure. Furthermore, the government in Belarus strongly supports the technology industry and encourages investment in this sector through various long-term tax incentives.
Our locations in Ukraine and Russia offer many of the same benefits as Belarus, including educational infrastructure, availability of qualified software engineers and government support of the technology industry. As of December 31, 2018, we had 5,836 IT professionals in Ukraine and 4,438 IT professionals in Russia. Our delivery model has not been materially affected by the political and economic uncertainty in Ukraine and Russia to date.
Our other significant locations with IT professionals are the United States with 1,787, Hungary with 1,337, Poland with 1,194, India with 1,053 and China with 470 as of December 31, 2018.
Customers
We maintain a geographically diverse client base, which primarily consists of Fortune 500 and 1000 customers located in North America, Europe, CIS and APAC. Our focus on delivering quality service is reflected in established relationships with many of our customers, with 54.8% and 30.9% of our revenues in 2018 coming from customers that had used our services for at least five and ten years, respectively. Our sustained growth and increased capabilities are furthered by both organic growth and strategic acquisitions. We continually evaluate potential acquisition targets that can expand our vertical-specific domain expertise, geographic footprint, service portfolio, client base and management expertise.
As we remain committed to diversifying our client base and adding more customers to our client mix, we expect revenue concentration from our top customers to continue to decrease over the long-term. The following table shows revenues from the top five and ten customers in the respective year as a percentage of revenues for that year:
 % of Revenues for Year Ended December 31,
 2018 2017 2016
Top five customers22.3% 24.0% 28.4%
Top ten customers31.6% 33.9% 38.4%
See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II of this annual report for additional information related to revenue.
See Note 15 “Segment Information” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding long-lived assets and customer revenues by geographic location as well as financial information related to our reportable segments.

Industry Expertise
Strong industry-specific knowledge, backed by extensive experience merging technology with the business processes of our customers, allows us to deliver tailored solutions to various industry verticals. Our customers operate in five main industry verticals as well as a number of other emerging verticals in which we are increasing our presence.
Financial Services. We have significant experience working with global investment banks, commercial and retail lending institutions, credit card and payment solution companies, trading platforms, exchanges and brokerages, capital markets, wealth and investment management institutions, fund operatorsinsurers and various other providers of financial services.services and financial technology. We assist these customers with challenges stemming from new regulations, compliance requirements, customer-based needs and risk management. Our financial services domain experts have been recognized with industry awards for engineering and deploying unique applications and business solutions that facilitate growth, competitiveness, regulatory compliance and customer loyaltyinteraction while driving cost efficiency for global financial institutions.and digital transformation.

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Travel and Consumer.Consumer. Our capabilities span a range of platforms, applications and solutions that businesses in travel and hospitality use to serveenhance their customers, capture management efficiencies,customers’ experience, control operating expenses and grow revenues.efficiently manage their business. Some of the world’s leading airlines, global hotel providersbrands and online travel agencies rely on our knowledgeexpertise in creating high-quality tools for operatingbecoming more adaptive and managing their business.addressing market challenges. Within this vertical, we also serve global, regional and local retailers, online retail brands and marketplaces, consumer goods manufacturers, andas well as distributors and online marketplaces.supply chain organizations. We deliver a wide range of services to retail and eCommercethese customers from complex system modernizations, brand strategy and space design, digital marketing, payments and loyalty programs to inventory and order management, leading edge innovations in multi-channel sales and distribution. We have transformed organizations to use technology to expand and revolutionize their business models. Our services directly impact the consumer experience of our customers’ brands,strategy, breakthrough products and allow our customers to reach more consumers.compelling brand and employee experiences that help retailers outpace competitors.
Software and Hi-Tech. We provide complex software product development services to meet software and technology companies’ constant need for innovation and agility. We help someSome of the most prominent software brands in the world partner with us to build what we believe to be the best software.technology consulting, core engineering and full-scale integration capabilities. Through our extensive experience with many industry leaders in Hi-Tech R&D,research and development, software engineering and integration, we have developed proprietary internal processes, methodologies and ITinformation technology infrastructure, which give us an edge when it comes to serving customers in the Hi-Tech and Software Productproduct markets. Our services span the complete software development lifecycle for software product development using our comprehensive development methodologies, testing, performance tuning, deployment, maintenance and support.
Business Information and Media.Media. We help our business information and media customers build products and solutions for all modern platforms including web media streaming, and mobile information delivery.delivery, print to digital transformations and information discovery and search. Our solutions help customers develop new revenue sources, accelerate the creation, collection, packagingcontent management, delivery and management of contentmonetization and reach broader audiences. We serve varied customers in this vertical including search engine providers, entertainment media, news providers,and sports broadcasting companies, financial data and legal information providers, content distributors, knowledge management organizationseducational materials publishers, game developers and advertising networks.
Life Sciences and Healthcare. We help our customers in the Healthcare industry respond to changing regulatory environments and improve the quality of care while managing the cost of care. Our professionals deliver an end-to-end experience that includes strategy, architecture, development and managed services to customers ranging from the traditional healthcare providers to innovative startups. In the Life Sciences category, we partner with global pharmaceutical, medical and scientific technology, and biotechnology companies and retail pharmacies to deliver sophisticated scientific informatics and innovative enterprise technology solutions. Our personnel in Life Sciences leverage their vast technology expertise to offer deep scientific and mathematical knowledge to broad-based initiatives. Our Life Sciences solutions enable customers to speed research and accelerate time-to-market while improving collaboration, knowledge management and operational excellence. We help our customers in the Healthcare industry respond to changing regulatory environments and improve the quality of care while managing the cost of care through integrated health solutions for patients and providers and human-centered design. Our professionals deliver an end-to-end experience that includes strategy, architecture, development and managed services to customers ranging from the traditional healthcare providers to innovative startups.
Emerging Verticals.We also serve the diverse technology needs of customers in the energy, telecommunications, real estate, automotive and various manufacturing industries, as well as government customers. For these customers we develop tools such as plant management platforms, energy saving applications, inventory management mechanisms, connected vehicle platforms and undertake various industry specific aspects of intelligent automation and operational efficiency. These customers are included in our Emerging Verticals, which are further discussed in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II of this Annual Report on Form 10-K.
Customers
We maintain a geographically diverse client base in multiple industries. Our focus on delivering quality service is reflected in established relationships with many of our customers, with 53.8% and 26.5% of our revenues in 2021 coming from customers that had used our services for at least five and ten years, respectively. Our sustained growth and increased capabilities are furthered by both organic growth and strategic acquisitions. We continually evaluate potential acquisition targets that can expand our vertical-specific domain expertise, geographic footprint, service portfolio, client base and management expertise.
As we remain committed to diversifying our client base and adding more customers to our client mix, we expect revenue concentration from our top customers to continue to decrease over the long-term. During 2020, the COVID-19 pandemic disrupted the economic landscape and influenced business decisions of our existing and potential customers. We were able to capitalize on demand for our services at our larger customers whereas we realized less revenue growth from our small customers. During 2021, we continued to diversify our customer base and decrease our concentration from our top customers. The following table shows revenues from the top five and ten customers in the respective year as a percentage of revenues for that year:
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 % of Revenues for Year Ended December 31,
202120202019
Top five customers18.2 %22.0 %19.9 %
Top ten customers25.7 %30.9 %29.1 %
See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II of this Annual Report on Form 10-K for additional information related to revenues.
See Note 16 “Segment Information” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding long-lived assets and customer revenues by geographic location as well as financial information related to our reportable segments.
Global Delivery Model
We believe the development of a robust global delivery model creates a key competitive advantage, enabling us to better understand and meet our customers’ diverse needs and to provide a compelling value proposition. We continuously grow our delivery platform both organically and through strategically acquired locations and personnel with diversified skills that support our strategy. We had 52,617 delivery personnel as of December 31, 2021, which mainly includes our core information technology professionals as well as designers, consultants and scientists.
We serve our customers through on-site, off-site and offshore locations across the world and use strategically located delivery centers to offer a strong, diversified and cost-effective delivery platform. Our largest delivery centers are located in Ukraine, Belarus and Russia and our delivery model has not been materially affected by the political and economic uncertainty in these locations.
As of December 31, 2021, in our largest delivery locations we had 12,389 delivery professionals located in Ukraine, 9,416 delivery professionals located in Belarus and 8,933 delivery professionals located in Russia. These locations are well-positioned to serve as main IT outsourcing destinations given their availability of qualified software engineers, established educational infrastructure, strong industrial base and government support for the technology industry through various long-term tax incentives in select jurisdictions.
Our other significant locations with delivery professionals are India with 4,349, Poland with 3,055, the United States with 2,757, Hungary with 1,991 and Mexico with 1,018 as of December 31, 2021.
Human Capital
Our more than 58,000 employees are a key factor in our ability to grow our revenues and serve our customers. We believe the quality of our employees serves as a key point of differentiation in how we deliver a superior value proposition to our customers and investors. Therefore, it is critical to our success that we are able to identify, attract, hire and retain delivery professionals who are highly skilled in information technology to execute our services, as well as individuals with appropriate skills to fill our executive, finance, legal, human resources and other key management positions. To attract, retain and motivate our employees, we offer a challenging work environment, a culture that values the individual, ongoing skills development initiatives, attractive career advancement with continuous rotation and promotion opportunities while providing an environment and culture that rewards entrepreneurial initiative and performance. As of December 31, 2021, 2020 and 2019, we had a total of 58,824, 41,168, and 36,739 employees, respectively, of which 52,617, 36,737, and 32,561, respectively, were delivery professionals.
Health, Safety, and Wellness: We invest in programs designed to improve the physical, mental, and social well-being of our employees so we can offer a safe, welcoming, and productive workplace. Our health and safety programs are designed to comply with the regulations in the multiple cities and countries where we operate, but also provide working conditions designed to be compatible with the working necessities of our delivery and administrative operations. In response to the continued unpredictability of the COVID-19 pandemic, we adapted our remote and onsite working policies to conform with current public health guidance. A vast majority of our employees continue to work from home, but for those who choose or need to work in an office setting, we have implemented safety measures and developed policies or refined safe working technologies for those employees who work in our or our customers’ facilities.
Recognizing that the lingering uncertainty associated with the COVID-19 pandemic and remote work could continue to significantly disrupt the work-life balance and wellness of our employees, we increased employee awareness of the programs we offer to support and enhance our employees’ mental, financial, and physical well-being and provided parenting and caregiver resources.
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Recruitment, Training and Utilization: As an innovation-driven business in a competitive industry, our success depends on hiring the most talented employees, training and developing that talent, and deploying them to satisfy customer demand. We have dedicated full-time employees who oversee all aspects of our human capital management process including talent acquisition teams to locate and attract qualified and experienced professionals around the world. Our employees are a critical asset, necessary for our continued success and, therefore, we are continuously exploring new geographies, markets, and sources to locate talented personnel and appealing to them with competitive compensation programs and educational opportunities.
We actively monitor how weutilize our delivery professionals and specialists to balance the needs of our customers with the availability, location, and skill sets of our employees and their need for diverse and challenging work. We manage utilization through strategic hiring and efficient staffing of projects for our customers. As of December 31, 2021, 2020 and 2019, the annual report.utilization rates of our delivery professionals were approximately 78.7%, 79.8%, and 78.0%, respectively.
EPAM invests significant resources in training and developing our employees through our learning and development programs. Our largest learning and development investment has been directed towards developing our engineering talent, including targeted training programs, innovation labs, and significant internal production projects. Our employees consumed over 3.7 million learning hours in 2021 and we were awarded LinkedIn’s Best Culture of Learning Talent Award for 2021. We deliver training and development opportunities and content through our unique learning ecosystem that promotes learning in the daily workflow to improve retention and productivity, and through dedicated events, including our week-long global learning event, which delivered approximately 100 online sessions.
We deliver learning and development content through proprietary platforms that make learning and development content easily available to all of our employees. Our digital learning platform provides our employees with an interface to meet our employees’ learning and training needs and includes a recommendation engine that suggests courses and materials based on employee role, level, location and skills. Our electronic library platform makes books and publications available to all of our employees and we celebrate learning achievements through our recognition portal, where we promote our employees’ learning accomplishments and employees can recognize each other for their teamwork, initiative, and unique, valuable skills.
Diversity and Inclusion: EPAM provides our customers with the skills of our talented personnel, which includes people with varied and diverse backgrounds and characteristics, to drive innovation and thought diversity in delivering our services. We believe that innovation comes from the unique perspectives, knowledge, and experiences of our global employees, so we strive to create inclusivity by offering comprehensive language learning programs, highlighting and sharing our varied cultures, and empowering women and underrepresented groups to celebrate their achievements in the workplace.
Increasing diversity in executive and key operational leadership roles is an organizational priority that starts at the top of our organization. Women currently represent approximately 29% of the independent directors on our Board and we have developed programs to identify, retain, mentor, and supply a pipeline of qualified, diverse candidates at all levels of our company. Our programs include dedicating resources and personnel in our talent acquisition team to identify, recognize, and use diverse and inclusive sources for hiring, including associating with organizations that are focused on promoting underrepresented groups in engineering, IT, and business. Our Emerging Engineers Lab is an internship program for entry-level talent sourced from a variety of diverse technology programs across the U.S., Canada and Mexico. We also supplemented our mandatory annual training with materials geared towards eliminating unconscious bias in our professional interactions and recognizing the value of diversity in organizational success.
Our employees have driven the creation of discussion forums focused on diversity and inclusion topics important to them and organized participation in global and local events, including International Women’s Day, Pride celebrations, and National Hispanic Heritage Month. Recognizing that improving the number of underrepresented people in the software and technology industries starts with access to science, technology, engineering, and mathematics (“STEM”) education, EPAM has created post-secondary STEM education certification programs and is investing in universities that offer degree programs. We also created the EPAM E-KIDS program where our employees volunteer their time to teach elementary school age children of any gender, race, or ethnic identity STEM concepts and introductory software coding skills. As of the end of 2021, we offered the EPAM E-KIDS program in 14 countries.
Employee Engagement and Retention: We are committed to respecting our employees' fundamental human rights at work and accordingly are a participant in the United Nations Global Compact. We believe that retaining skilled talent requires substantially more than meeting basic employment and labor rights, and that employees who are fairly compensated, feel supported in their career development, and are engaged with their employer are more likely to remain with that employer. That is why we strive to provide pay and benefits that demonstrate the value of our employees to us, including a competitive salary, flexible work-life balance, paid time off, health coverage, ongoing training programs, relocation options, and recognition opportunities for open source software contributions.
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Table of Contents
Our career development programs create detailed and progressive training plans for our employees and help them choose from internal and external training options, mentoring programs, and hands-on opportunities to experience emerging technology areas. We designed our career development programs to enable our employees to develop their engineering skills, influence our culture, develop thought leadership, and introduce them to leaders in our industry. Our career development programs also give our employees opportunities to earn accreditation and relevant expertise in various technology fields, including software and project management certifications and recognition and credentialing from the industry’s primary software and cloud services providers.
Our focus on our employees’ experience is recognized inside and outside of EPAM. In 2021, EPAM was awarded Great Place to Work certifications in India, Poland, and Singapore, named in the top three Most Attractive Employers in the technology industry category by PwC in Hungary, and named on Newsweek’s list of Top 100 Most Loved Workplaces. We focus on retaining and engaging top talent by hiring people with the skill sets our customers need and who also share our values so we can build long-term employee satisfaction, which is evidenced by our voluntary attrition rate of 13.3%, 10.8%, and 13.3% in 2021, 2020 and 2019, respectively.
We endeavor to recruit for careers, not for short-term projects, and actively foster feedback from our employees so we can improve the EPAM employee experience. Our employees have demonstrated their satisfaction with our approach by giving their highest percentage of positive responses in our 2021 employee survey when asked if their manager demonstrates a commitment to building a trusting work environment (95%), and if they feel that EPAM provides a supportive environment for all employees, regardless of location, level, function, gender, age, race, ethnicity, or disability (94%). Receiving and learning from employee feedback plays a critical role in engaging and retaining our employees because it offers us an opportunity to improve our operations and for our employees to continually enhance their skills.
Sales and Marketing
We market and sell our services through our senior management, sales and business development teams, account managers, and professional staff. Our client service professionals and account managers, who maintain direct customer relationships, play an integral role in engaging with current customers to identify and pursue potential business opportunities. This strategy has been effective in promoting repeat business and growth from within our existing clientcustomer base and we believe that our reputation as a reliable provider of software engineering solutions drives additional business from inbound requests and referrals. In addition to effective client management, our sales model also utilizes an integrated sales and marketing approach that leverages a dedicated sales team to identify and acquire new accounts.

We maintain a marketing team, which coordinates corporate-level branding efforts such as participation in and hosting of industry conferences and events as well as sponsorship of programming competitions. We have been recognized by many top global independent research agencies, such as Forrester Gartner, Zinnov and HFSGartner and by publications such as Newsweek, Forbes and Fortune.
Employees
Our employees are a key factor in our ability to grow our revenues and serve our customers. We have dedicated full-time employees who oversee all aspects of our human capital management process including a professional talent acquisition team whose objective is to locate and attract qualified and experienced IT professionals within various EPAM locations. It is critical that we effectively plan our short-term and long-term recruitment needs and deploy the necessary personnel and processes to optimize utilization and quickly satisfy the demands of our customers. As our business grows, we also focus on hiring and retaining individuals with appropriate skills to fill our executive, finance, legal, HR and other key management positions.
At December 31, 2018, 2017 and 2016, we had a total of 30,156, 25,962 and 22,383 employees, respectively. Of these employees, as of December 31, 2018, 2017 and 2016, respectively, 26,760, 22,998 and 19,670 were revenue generating IT professionals.
In our competitive industry, the ability to hire and retain highly-skilled information technology professionals is critical to our success. We believe the quality of our employees serves as a key point of differentiation in how we deliver a superior value proposition to our customers. To attract, retain and motivate our IT professionals, we offer a challenging work environment, ongoing skills development initiatives, attractive career advancement, and promotion opportunities thus providing an environment and culture that rewards entrepreneurial initiative and performance.
We dedicate significant resources to the training, continuing education and career development programs of our entry-level and experienced IT professionals. We believe in the importance of supporting educational initiatives and we sponsor employees’ participation in internal and external training and certifications. Entry-level IT professionals undergo a rigorous training program that consists of approximately three to six months of classroom training, as well as numerous hours of hands-on training through actual engagements. This comprehensive program results in employees who are highly proficient and possess deep technical expertise that enables them to immediately serve our customers’ needs. For our mid-level and senior IT professionals, we offer continuing education programs aimed at helping them advance in their careers. We also provide mentoring opportunities, management and soft skills training, intensive workshops and management and technical advancement programs in order to support the development of middle and senior management through formal leadership training, evaluation, development and promotion.
Historically, we developed our base of IT professionals by hiring highly-qualified, experienced professionals from Eastern Europe and by recruiting students from the region’s leading universities. We have established EPAM delivery centers near many of these university campuses and we continue supporting the universities through EPAM-branded research labs, developing training courses and curriculum, providing teaching equipment and engaging students to identify their talents in information technology. Our strong relationships with these leading technical institutions provide us access to a highly-qualified talent pool. In addition, in recent years, we have been exploring additional markets, such as India, as a new source of talent.
We believe that we maintain a good working relationship with our employees and our employees have not entered into any collective bargaining agreements (other than broad industry-wide agreements as required in certain countries in Europe and Mexico) or engaged in any labor disputes.
Competition
The markets in which we compete are changing rapidly and we face competition from both global technology solutions providers as well as those based primarily in specific geographies with lower cost labor such as Eastern Europe, India and China. We believe that the principal competitive factors in our business include technical expertise and industry knowledge, end-to-end solution offerings, a reputation for and a track record forof high-quality and on-time delivery of work, effective employee recruiting, training and retention, responsiveness to customers’ business needs, ability to scale, financial stability and price.
We face competition from various technology services providers such as Accenture, Atos, Capgemini, Cognizant Technology Solutions, Deloitte Digital, DXC Technology, Exlservice,Endava, Genpact, GlobalLogic, Globant, Grid Dynamics, HCL Technologies, HP Enterprise, IBM Services, Infosys, Luxoft Holding, Inc., Mindtree, Perficient, Tata Consultancy Services, Virtusa Corporation, and Wipro, among others. Additionally, we compete with numerous smaller local companies in the various geographic markets in which we operate.

We believe that our focus on complex and innovative software product development solutions, our technical employee base, and our development and continuous improvement in process methodologies, applications and tools position us well to compete effectively in the future.


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Quality Management and Information Security
We are continuously investing in applications, tools and infrastructure to manage all aspects of our global delivery process in order to manage quality and information security risks, while providing control and visibility across all project lifecycle stages both internally and to our customers. We maintain, monitor, and improve processes and infrastructure to protect our, clients’our customers’ and their customers’ confidential and sensitive information and allocate internal and external resources to assess and ensure information security, cybersecurity and data privacy. We have made significant investments in the appropriate people, processes and technology to establish and manage compliance withinformation security, confidentiality policies,requirements, and laws and regulations governing our activities, such as the European Union data protection legal framework referred to as the General Data Protection Regulation (“GDPR”), amongthe California Consumer Privacy Act (“CCPA”), and others.
We focus on establishing stringent security, privacy and quality standards andas well as internal controls and meet the standards ofwith ISO 27001:2013, ISO 27701:2019, ISO 9001:2015 and ISO 9001:2015.13485:2016. We are an ISAE 3402 Type 2 certified IT services provider. This certification is issued by an auditor in compliance with the globally recognized assurance standard. The certification, along with others we hold, provide our customers with independent third-party verification of our information security, quality management and general controls practices.
We have developed sophisticated project management techniques facilitated through our proprietary Project Management Tools,project management tools, a web-based collaborative environment for software development, which we consider critical for visibility into project deliverables, resource management, team messaging and project-related documents. These tools promote collaboration and effective oversight, reduce work time and costs, and increase quality for our IT management and our customers.

Corporate and Social Responsibility and Environmental, Social, and Governance Initiatives
We are committed to integrating positive social, environmental and ethical practices into our business operations, corporate governance, and strategy. This commitment is key to our continual development as a business and drives value for our employees, customers, business partners, the community and other stakeholders. We practice the principles established in our Code of Ethical Conduct by making positive contributions to the communities in which we operate and championing corporate social responsibility efforts.
Through our focused efforts in the areas of Education, Environment, and Community, we are committed to sharing the expertise and attributes of our highly skilled global workforce to effectively support the needs of, and positively add to the world at large and the communities where we work and live. By understanding our impact on local, regional and global communities, we strive to create positive change and opportunities in areas where it is needed most. Such efforts include our global technology education initiatives, through which we provide innovative, industry-relevant technology training and mentorship programs to students globally as well as through other technology conferences, seminars, and hackathon events where we encourage social innovation and jumpstart collaboration among our local tech communities.
We believe responsible stewardship of the environment is critical, and we take this responsibility seriously. We continually strive to improve our environmental performance through implementation of sustainable development and environmental practices. In addition, as an innovation-driven business, EPAM’s success depends on hiringpractices including recycling and upcycling electronics and computers, designing and releasing a carbon footprint calculator to our employees and the most talented employeesgeneral public, and building new offices according to the conservation standards of the Leadership in the industry. We are committed to respecting our employees' fundamental human rights at work. We similarly expect our suppliers, vendors,Energy and subcontractors and all other third-party companies that comprise EPAM’s supply chain to respect human rights and to avoid complicity in human rights abuses. EPAM seeks to provide our customers with exceptional personnel, which includes people with varied and diverse characteristics, to drive the innovation and thought diversity for which we are known. We aim to continuously retain and supply a pipeline of qualified, diverse candidates to foster this goal.Environmental Design rating system.
Intellectual Property
Protecting our intellectual property rights is important to our business. We have invested, and will continue to invest, in research and development to enhance our domain knowledge, and create complex, specialized solutions for our customers.customers, and continuously advance our information security. We rely on a combination of intellectual property laws, trade secrets, cybersecurity, and confidentiality procedures and contractual provisionsobligations to protect our intellectual property. We require our employees, vendors and independent contractors to enter into written agreements upon the commencement of their relationships with us, which assign to us all deliverable intellectual property and work product made, developed or conceived by them in connection with their employment with us. These agreements also provide thator provision of services and to keep any confidential or proprietarydisclosed information disclosed or otherwise made available by us remains confidential.

We also enter into confidentiality and non-disclosure agreements with our customers. These customarycustomers and suppliers to protect information and maintain information security. Our agreements with our customers cover our use of our customers’their software systems and platforms as our customers usually own the intellectual property in the software, products, and solutions we develop for them. Furthermore, we usuallyoften grant our customers a perpetual, worldwide, royalty-free, nonexclusive transferable and non-revocable license to use relevant technologies in our customers to use our preexistingpre-existing intellectual property portfolio, but only to the extent necessary in order to use the software or systems we developeddevelop for them.Our suppliers are generally bound by our supplier code of conduct, which imposes an obligation to protect our and our customers’ intangible assets, including confidential information, personal information, and intellectual property, and to protect the security of those assets.


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Regulations
Due to the industry and geographic diversity of our operations and services, our operations are subject to a variety of rules and regulations. Several foreign and U.S. federal and state agencies regulate various aspects of our business. See “Item 1A. Risk Factors — Risks RelatingRelated to Our Business —Regulation and Legislation and Risks Related to Information Security and Data Protection.” We are subject to laws and regulations in the United States and other countries in which we operate, including export restrictions, economic sanctions, and the Foreign Corrupt Practices Act or FCPA,(“FCPA”) and similar anti-corruption laws. If we are notlaws and data privacy regulations. Compliance with these laws requires significant resources and non-compliance may result in compliance with applicable legal requirements, we may be subject to civil or criminal penalties and other remedial measures”.measures.
Corporate Information
EPAM Systems, Inc. was incorporated in the State of Delaware on December 18, 2002. Our predecessor entity was founded in 1993. Our principal executive offices are located at 41 University Drive, Suite 202, Newtown, Pennsylvania 18940 and our telephone number is 267-759-9000. We maintain a website at http:https://www.epam.com. Our website and the information accessible through our website are not incorporated into this annual report.Annual Report on Form 10-K.
We make certain filings with the Securities and Exchange Commission (“SEC”), including our annual reportAnnual Report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments and exhibits to those reports. We make suchThese filings available free of charge through the Investor Relations section of our website, http://investors.epam.com, as soon as reasonably practicable after they are filed with the SEC. The filings are also available through the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549 or by calling 1-800-SEC-0330. In addition, the SEC maintains a website at http:https://www.sec.govthat which contains reports, proxy and information statements, and other information regarding issuers that file electronically through the SEC’s EDGAR System. We also make such filings available free of charge through the Investor Relations section of our website, https://investors.epam.com, as soon as reasonably practicable after they are filed with the SEC.


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Item 1A. Risk Factors
Our operations and financial results are subject to various risks and uncertainties, which could adversely affect our business, financial condition, results of operations, cash flows, and the trading price of our common stock. Listed below, not necessarily in order of importance or probability of occurrence, are the most significant risk factors applicable to us. Additionally, forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. See “Special Note Regarding Forward-Looking Statements”.“Forward-Looking Statements.”
Risks RelatingRelated to COVID-19
Our results of operations have been adversely affected and could in the future be materially adversely affected by the COVID-19 pandemic.
The COVID-19 pandemic has contributed to significant volatility in the price of our common stock, created uncertainty in customer demand for, and ability to supply, our services and caused widespread economic disruption. The extent to which the coronavirus pandemic will continue to impact our business, operations and financial results will depend on numerous factors that frequently change or are unknown, and that we may not be able to accurately predict. Those factors include: the duration and scope of the pandemic; governmental, business and individuals’ responses or planned responses to the pandemic, including availability, administration rates, and acceptance of vaccines and therapeutics, and the availability of diagnostic supplies; the impact of the pandemic on economic activity, supply chains, and inflation; any interventions or government measures intended to mitigate economic and supply disruptions; the effect on our customers and customer demand for our products, services, and solutions; our ability to sell and provide our products, services, and solutions, including as a result of travel restrictions and personnel availability; the ability of our customers to pay timely, if at all, for our services and solutions with or without discounts requested by our customers; bankruptcy or other insolvency procedures among our customers or suppliers; and closures of our and our customers’ offices and facilities. Restrictions on access to our customers and their facilities, and broad disruptions in our customers’ markets , has disrupted, and could continue to disrupt the demand for our products, services, and solutions and result in, among other things, termination of customer contracts, delays or interruptions in the performance of contracts, losses of revenues, reduced profitability, and an increase in bad debt expense. Customers have and may continue to slow or halt decision making, delay planned work, or suspend, terminate, fail to renew, or reduce existing contracts or services. Travel and immigration restrictions may delay or prevent our personnel from accessing worksites, and remote working arrangements increase information security, cyber security and connectivity vulnerabilities. In addition, new coronavirus variants and eased COVID-19-related restrictions on businesses and consumers could affect our ability to deliver services to our customers because of an outbreak of illness among our employees, our customers’ employees, or at a facility. Moreover, there may be additional costs that we will have to incur in connection with further changes in response to the COVID-19 pandemic or a return to prior operating conditions. To the extent the COVID-19 pandemic adversely affects our business and financial results, it may also have the effect of heightening many of the other risks described in this section of this Annual Report on Form 10-K for the year ended December 31, 2021, including, but not limited to, those relating to our operations in emerging markets, our ability to execute on our growth strategy through strategic acquisitions, our dependency on third parties for network infrastructure, attracting, hiring, and retaining personnel, the effects on movements in foreign currency exchange rates, and the effects that changes to fiscal, political, regulatory and other federal policies may have on EPAM, each of which could materially adversely affect our business, financial condition, results of operations and/or stock price.
Risks Related to Our BusinessPersonnel and Growth
We may be unable to effectively manage our rapid growth or achieve anticipated growth, which could place significant strain on our management, personnel, systems, resources, and resources.results of operations.
We have experienced rapid growthgrown rapidly and significantly expanded our businessbusinesses over the past several years, both organically and through strategic acquisitions.acquisitions and investments. Our growth has resulted in part from managing larger and more complex projects for our customers, but consequently requires that we invest substantial amounts of cash in human capital and the infrastructure to support them, including training, administration, and facilities. Our rapid growth has placed, and will continue to place,places significant demands on our management and our administrative, operational and financial infrastructure. Continued expansion increases theinfrastructure, and creates challenges, we face in:including:
recruiting, training and retaining sufficiently skilled professionals and management personnel;
adhering toplanning resource utilization rates on a consistent basis and further improving our high-quality process execution standardsefficiently using on-site, off-site and offshore staffing;
maintaining high levels of customer satisfaction;
managingclose and effective relationships with a larger number of customers in a greater number of industries and locations;
controlling costs and minimizing cost overruns and project delays in delivery center and infrastructure expansion;
effectively maintaining effective oversight of personnelproductivity levels and delivery centers;
coordinating effectivelyimplementing process improvements across geographies and business units to executeunits; and
evolving our strategic plan;information security and
developing and improving our internal administrative, operational and financial infrastructure.
Moreover, we
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We intend to continue our expansion and pursue available opportunities for the foreseeable futurefuture. We have and pursue available opportunities.will continue to invest in new lines of business, such as software development education and expanded consulting services. As we introduce new services, or enter into new markets, weand take on increasingly large and complex projects, our business may face new market, technological, operational, compliance and administrative risks and challenges. As aIf customers do not choose us for large and complex projects or we do not effectively manage those projects, our reputation may be damaged and our business and financial goals may not be realized. Direct-to-consumer offerings in the highly regulated professional education industry could result of thesein increased liability and othercompliance costs. We need to generate business and revenues to support new investments and infrastructure projects. If the challenges associated with expansion we may not be able to achievenegatively impact our anticipated growth and margins, our business, prospects, financial condition and results of operations could be materially adversely affected.
Our failure toWe must successfully attract, hire, train and retain newqualified personnel to service our customers’ projects and we must productively utilize those personnel to remain profitable.
Identifying, recruiting, hiring and retaining professionals with the qualifications necessary to fulfill the needsdiverse skill sets across our broad geography of our existing and future customers could materially adversely affect our ability to provide high quality services to those customers.
The ability to hire and retain highly skilled information technology professionals, including project managers, IT engineers and other technical personnel,operations is critical to our success. To maintain and renewmaintaining existing engagements and obtainobtaining new business and has become more challenging in the economic and labor climate caused by the COVID-19 pandemic. If we are unable to recruit skilled professionals and if we do not deploy those professionals and use our physical infrastructure and fixed-cost resources productively, our profitability will be significantly impacted. We must manage the utilization levels of the professionals that we hire and train by planning for future needs effectively and staffing projects appropriately while accurately predicting the general economy and our customers’ need for our services. If we are unable to attract, hire, train, and retain highly skilled personnel with diverse skill sets and competencies, including those with management experience, across the geographically diverse locations inproductively deploy them on customer projects, we will jeopardize our ability to meet our customers’ expectations and develop ongoing and future business, which we operate. could adversely affect our financial condition and results of operations.
Competition for highly skilled professionals is intensehas intensified in the markets where we operate, and we may experience significant employee turnover rates due to such competition. If we are unable to attract, hire, train or retain highly skilled personnel, our ability to meet and develop ongoing and future business could be jeopardized and our business, financial condition and results of operations could be adversely affected.
A significant increase in the attrition rate among professionals with specialized skills, could decrease our revenues, operating efficiency and productivity and could leadprofitability will decrease. Cost reductions, such as reducing headcount, or voluntary departures that result from our failure to a decline in demand for our services. In addition, any reductions in headcount for economic or business reasons, however temporary,retain the professionals we hire, could negatively affect our reputation as an employer and our ability to hire personnel to meet our business requirements may suffer.
Increasesrequirements. Price increases resulting from increasing compensation to retain personnel could lead to a decline in wagesdemand for our peopleservices.
There may be adverse tax and other compensation expense could prevent us from sustainingemployment law consequences if the independent contractor status of some of our competitive advantagepersonnel or the exempt status of our employees is successfully challenged.
In several countries, certain of our personnel and result in dilution to our stockholders.
Wage costs for industry professionals incertain of the emerging markets in whichpersonnel of companies that we have significant operationsacquired are retained as independent contractors. The criteria to determine whether an individual is considered an independent contractor or an employee are typically fact sensitive and delivery centers are lower than comparable wage costsvary by jurisdiction, as can the interpretation of the applicable laws. If a government authority changes the applicable laws or a court makes any adverse determination with respect to independent contractors in general or one or more developed countries. However, wage costs in the service industry in these countries may increase at a faster rate than in the past, which ultimately may make us less competitive unless we are able to increase the efficiency and productivity of our people. Wage inflation may also increase our cost of providing servicesindependent contractors specifically, we could incur significant costs, including for prior periods, for tax withholding, social security taxes or payments, workers’ compensation and reduce our profitability.

Additionally, we have granted certain equity-based awards under our stock incentive plansunemployment contributions, and entered into other stock-based compensation arrangements in the past, and expect to continue this practice. The expenses associated with stock-based compensation may reduce the attractiveness to us of issuing equity awards under our equity incentive plan. However, if we do not grant equity awards,recordkeeping, or if we reduce the value of equity awards we grant, we may not be ablerequired to attract and retain key personnel. If we grant more equity awards to attract and retain key personnel, the expenses associated with such additional equity awardsmodify our business model, any of which could materially adversely affect our business, financial condition and results of operations. Furthermore, any new regulations, volatilityoperations and increase the difficulty in the stock marketattracting and other factors could diminish our use and the value of our equity-based awards. This could put us at a competitive disadvantage or cause us to consider changes to our pay structure. The issuance of equity-based compensation also results in additional dilution to our stockholders.retaining personnel.
Our success depends substantially on the continuing efforts of our senior executives and other key personnel, and our business may be severely disrupted if we lose their services.
Our future success heavily depends upon the continued services of our senior executives and other key employees. If one or more of our senior executives or key employees are unable or unwilling to continue in their present positions, it could disrupt our business operations, and we may not be able to replace them easily or at all. In addition, competition for senior executives and key personnel in our industry is intense, and we may be unable to retain our senior executives and key personnel or attract and retain new senior executives and key personnel in the future, in which case our business may be severely disrupted. If any of our senior executives or key personnel such as business development managers, joins a competitor or forms a competing company, we may lose customers, suppliers, know-how and other key personnel to them.those competitors. If we are unable to attract new senior executives or key personnel due to the intense competition for talent in our industry, it could disrupt our business operations and growth.

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If we fail to integrate or manage acquired companies efficiently and effectively, or if acquisitions do not perform to our expectations, our overall profitability and growth plans could be materially adversely affected.
Strategic acquisitions are part of our expansion strategy, but these transactions involve significant risks. Acquired companies may not advance our business strategy or achieve a satisfactory return on our investment, we may not be able to successfully integrate acquired employees and business culture, customer relationships, or operations, and acquisitions divert significant management attention and financial resources from our ongoing business. Furthermore, contracts between our acquired companies and their customers may lack terms and conditions that adequately protect us against the risks associated with the services we provide, and our acquired companies' business operations can expose us to potential liability before integration is complete.If not effectively managed, the disruption of our ongoing business, increases in our expenses, including significant one-time expenses and write-offs, and difficulty and complexity of effectively integrating acquired operations may adversely affect our overall growth and profitability.
Risks Related to Our profitabilityOperations
Instability in geographies where we have significant operations and personnel or where we derive substantial amounts of revenue could have a material adverse effect on our business, customers, service delivery, and financial results.
Economic, civil, military, and political uncertainty exists and may increase in many of the regions where we operate and derive our revenue. Several countries in which we operate are experiencing and may continue to experience military action and civil and political unrest. We have significant operations in the emerging market economies of Eastern Europe and more than half of our global delivery, administrative and support personnel are located in Ukraine, Belarus and Russia.
In late February 2022, Russian military forces launched significant military action against Ukraine, and sustained conflict and disruption in the region is likely. The impact to Ukraine, as well as actions taken by other countries, including new and stricter sanctions by Canada, the United Kingdom, the European Union, the U.S. and other countries and organizations against officials, individuals, regions, and industries in Russia, Ukraine and Belarus, and each country’s potential response to such sanctions, tensions, and military actions could have a material adverse effect on our operations. In order to protect against potential cyberattacks or other information security threats, some of our customers are considering or have implemented steps to block internet communications with Russia, Ukraine, and Belarus, which could have a material adverse effect on our ability to deliver our services from those locations. Any such material adverse effect from the conflict and enhanced sanctions activity may disrupt our delivery of services, cause us to shift all or portions of our work occurring in the region to other countries, and may restrict our ability to engage in certain projects in the region or involving certain customers in the region.
EPAM is actively monitoring and enhancing the security of our people and the stability of our infrastructure, including communications and internet availability. We execute our business continuity plans and adapt to developments as they occur to protect the safety of our personnel and address potential impacts to our delivery infrastructure. To date we have not experienced any material interruptions in our infrastructure, utility supply or internet connectivity needed to support our customers. We have developed and, in some cases, implemented additional contingency plans to relocate work and/or personnel to other geographies within our global footprint and add new locations, as appropriate. Our business continuity plans are designed to address known contingency scenarios to ensure that we have adequate processes and practices in place to protect the safety of our people and to handle potential impacts to our delivery capabilities. Our crisis management procedures, business continuity plans, and disaster recovery capabilities may not be effective at preventing or mitigating the effects of prolonged or multiple crises, such as civil unrest, military conflict, and a pandemic in a concentrated geographic area. The current events in the regions where we operate and where we derive a significant amount of our business may pose security risks to our people, our facilities, our operations, and infrastructure, such as utilities and network services, and the disruption of any or all of them could materially adversely affect our operations, financial results, and cause volatility in the price of our stock. We have no way to predict the progress or outcome of the military action in Ukraine or its impacts in Russia and Belarus as the conflict and government reactions are rapidly developing and beyond our control. Whether in these countries or in others in which we operate, prolonged civil unrest, political instability or uncertainty, military activities, or broad-based sanctions, should they continue for the long term or escalate, could require us to rebalance our geographic concentrations and could have a material adverse effect on our personnel, operations, and business outlook.

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Increases in wages, equity compensation, and other compensation expenses could prevent us from sustaining our competitive advantage, increase our costs, and result in dilution to our stockholders.
Wages for technology professionals in the emerging markets where we have significant operations and delivery centers are lower than comparable wages in more developed countries. However, wages in general, and in the technology industry in these countries in particular, increased at a faster rate than in the past, which may make us less competitive unless we are able to increase the efficiency and productivity of our people. If we increase operations and hiring in more developed economies, our compensation expenses will sufferincrease because of the higher wages demanded by technology professionals in those markets. Wage inflation, whether driven by competition for talent or ordinary course pay increases, may also increase our cost of providing services and reduce our profitability if we are not able to maintain our resource utilization and productivity levels.
Our profitability is significantly impacted by our utilization and productivity levels of fixed-cost resources, such as our professionals as well as other resources such as computers and office space. Our abilitypass those costs on to manage our utilization levels depends significantly on our ability to hire and train high-performing professionals, to plan effectively for future needs, to staff projects appropriately, and on the general economy and its effect on our customers or adjust prices when justified by market demand.
We expect to continue our practice of granting equity-based awards under our stock incentive plans and their business decisions regardingpaying other stock-based compensation. The expenses associated with stock-based compensation may make issuing equity awards under our equity incentive plans less attractive to us, but if we reduce the useamount or value of our services. If we experience a slowdown or stoppage of work for any customer or on any project for which we have dedicated personnel or facilities,equity award grants, we may not be able to reallocate these assetsattract and retain key personnel. Conversely, if we grant more or higher value equity awards to other customersattract and projectsretain key personnel, the equity compensation expenses could materially adversely affect our results of operations. New regulations, volatility in our stock, and dilution to keep their utilizationour stockholders could diminish our use and productivity levels high. If we are not ablethe value of our equity-based awards. This could put us at a competitive disadvantage or cause us to maintain optimal resource utilization levels without corresponding cost reductions or price increases,reconsider our profitability will suffer.compensation practices.
Our global business exposesoperations in emerging markets subject us to operationalgreater economic, financial, and banking risks than we would face in more developed markets.
Our significant operations in emerging market economies in Eastern Europe, India and certain other Asian countries are vulnerable to market and economic risks.
We arevolatility to a global company with substantial international operations. The global nature ofgreater extent than more developed markets, which presents risks to our business creates operational and economic risks.
Risks inherent in conducting international operations include:
foreign exchange fluctuations;
application and imposition of protective legislation and regulations relating to import or export, including tariffs, quotas and other trade protection measures;
difficulties in enforcing intellectual property and/or contractual rights;
complying with a wide variety of foreign laws;
potentially adverse tax consequences;
competition from companies with more experience in a particular country or with international operations; and
overall foreign policy and variability of foreign economic conditions.
Our global operations are conducted predominantly in U.S. dollars, however we generate a significant portionoperations. A majority of our revenues and incur expenditures in various currencies other than U.S. dollars. The majority of our customers are generated in North America and Western Europe, whileEurope. However, most of our personnel and delivery centers are located in lower cost locations. These factors exposelocations, including emerging markets. This exposes us to foreign exchange risks relating to revenues, compensation, purchases, capital expenditures, receivables and other balance-sheet items. As we continue to leverage and expand our global delivery model into other emerging markets, a larger portion of our revenues and incurred expenses may be in currencycurrencies other than U.S. dollars. Currency exchange volatility caused by economic instability or other factors could materially impact our results. See “Item 7A. Quantitative and Qualitative Disclosures About Market Risk.”
The economies of certain emerging market countries where we operate have experienced periods of considerable instability and have been subject to abrupt downturns. We have cash in banks in countries such as Belarus, Russia, Ukraine, Kazakhstan, Georgia, Armenia and Uzbekistan, where the banking sector generally does not meet the banking standards of more developed markets, bank deposits made by corporate entities are not insured, and the banking system remains subject to instability. Armed conflict, or the threat of armed conflict, involving Belarus, Russia or Ukraine could contribute to a banking crisis in these countries. A banking crisis, or the bankruptcy or insolvency of banks that receive or hold our funds may result in the loss of our deposits or adversely affect our liquidity and our ability to complete banking transactions in that region. In addition, some countries where we operate may be subject toimpose regulatory or practical restrictions on the movement of cash and the exchange of foreign currencies within their banking systems, which would limit our ability to use cash across our global operations and increase our exposure to currency fluctuations. This risk could increase as we continue expanding our global operations, which may include entering emerging markets that may be more likely to impose these types of restrictions. CurrencyEmerging market vulnerability, and especially its impact on currency exchange volatility caused by political or economic instability or other factors, could also materially impact our results. See “Item 7A. Quantitative and Qualitative Disclosures About Market Risk.” 

Our industry is sensitive to the economic environment and the industry tends to decline during general economic downturns. Given our significant revenues from North America and Europe, if those economies weaken or slow, pricing for our services may be depressed and our customers may reduce or postpone their technology related spending significantly, which may in turn lower the demand for our services and negatively affect our revenues and profitability.
War, terrorism, other acts of violence or natural or manmade disasters may affect the markets in which we operate, our customers, and our service delivery.
Our business may be negatively affected by instability, disruption or destruction in a geographic region in which we operate, regardless of cause, including war, terrorism, riot, civil insurrection or social unrest; and natural or manmade disasters, including famine, flood, fire, earthquake, storm or disease. Such events may cause customers to delay their decisions on spending for the services we provide and give rise to sudden significant changes in regional and global economic conditions and cycles. These events also pose significant risks to our people and to physical facilities and operations around the world, whether the facilities are ours or those of our customers, which could materially adversely affect our financial results. By disrupting communications and travel, giving rise to travel restrictions, and increasing the difficulty of obtaining and retaining highly-skilled and qualified professionals, these events could make it difficult or impossible for us to deliver services to our customers. Travel restrictions could cause us to incur additional unexpected labor costs and expenses or could restrain our ability to retain the skilled personnel we need for our operations. In addition, any extended disruptions of electricity, other public utilities or network services at our facilities, as well as system failures at, or security breaches in, our facilities orbanking systems, could also adversely affect our ability to serve our customers.
Emerging markets are subject to greater risks than more developed markets, including significant legal, economic, tax and political risks.
We have significant operations in certain emerging market economies in Eastern Europe, India and other Asian countries. Emerging markets are vulnerable to market downturns and economic slowdowns elsewhere in the world and are subject to greater risks than more developed markets, including those that may result from foreign laws and regulations, the potential imposition of trade or foreign exchange restrictions or sanctions, tax increases, fluctuations in exchange rates, inflation, unstable political and military situations, labor issues, and less established legal systems. The economies of certain countries where we operate have experienced periods of considerable instability and have been subject to abrupt downturns. Such economic instability and any future deterioration in the international economic situation could have a material adverse effect on our business, financial condition and results of operations.
Our operations may be adversely affected by ongoing conflict in Ukraine.
Continuing military activities in Ukraine have combined with Ukraine’s weak economic conditions to fuel ongoing economic uncertainty in Ukraine, Russia and other markets. The European Union, United States and other nations have imposed, and may continue imposing, further economic sanctions, including specific sanctions on certain Russian entities (specifically in the energy, defense and financial sectors). Prolonged political instability in Ukraine, sanctions against Russia and Russia’s potential response to such sanctions could have a material adverse effect on our operations. We have delivery centers in Ukraine employing 5,836 billable professionals as of December 31, 2018, none of which is located in the most volatile regions of Eastern Ukraine. We also have delivery centers in Russia, employing 4,438 billable professionals as of December 31, 2018 located in various cities including Moscow and St. Petersburg. To date we have not experienced any interruption in our office infrastructure, utility supply or internet connectivity needed to support our customers. We continue to monitor the situation closely. Our contingency plans include relocating work and/or personnel to other locations and adding new locations, as appropriate.
The U.S. Congress and Trump administration may make substantial changes to fiscal, political, regulatory and other federal policies that may adversely affect our business, and financial results.
Changes in general economic or political conditions in the United States or other regions could adversely affect our business. For example, the administration under President Donald Trump has put forth and may continue to propose significant changes with respect to a variety of issues, including international trade agreements, import and export regulations, tariffs and customs duties, foreign relations, immigration laws, and corporate governance laws, that could have a positive or negative impact on our business.

We do not have long-term commitments from our customers, and our customers may terminate contracts before completion or choose not to renew contracts. A loss of business from significant customers could materially affect our results of operations.
Our ability to maintain continuing relationships with our major customers is essential to the growth and profitability of our business. However, the volume of work performed for any specific customer is likely to vary from year to year, especially since we generally are not our customers’ exclusive IT services provider and we generally do not have long-term commitments from customers to purchase our services. The ability of our customers to terminate engagements with or without cause makes our future revenues uncertain. Although a substantial majority of our revenues are generated from customers who also contributed to our revenues during the prior year, our engagements with our customers are typically for projects that are singular in nature. Therefore, we must seek to obtain new engagements when our current engagements end.
There are a number of factors relating to our customers that are outside of our control, which might lead them to terminate a contract or project with us, including:
financial difficulties;
corporate restructuring, or mergers and acquisitions activity;
change in strategic priorities, resulting in elimination of the impetus for the project or a reduced level of technology related spending;
change in outsourcing strategy resulting in moving more work to the customer’s in-house technology departments or to our competitors; and
replacement of existing software with packaged software supported by licensors.
Termination or non-renewal of a customer contract could cause us to experience a higher than expected number of unassigned employees and thus compress our margins until we are able to reallocate our headcount. The loss of any of our major customers, or a significant decrease in the volume of work they outsource to us or the price at which we sell our services to them, if not replaced by new service engagements, could materially adversely affect our revenues and results of operations.
Our revenues are highly dependent on a limited number of industries, and any decrease in demand for outsourced services in these industries could reduce our revenues and adversely affect our results of operations.
A substantial portion of our customers is concentrated in five specific industry verticals: Financial Services; Software & Hi-Tech; Business Information & Media; Travel & Consumer; and Life Sciences & Healthcare. Our business growth largely depends on continued demand for our services from customers in these five industry verticals and other industries that we may target in the future, as well as on trends in these industries to outsource the type of services we provide.
A downturn in any of our targeted industries, a slowdown or reversal of the trend to outsource IT services in any of these industries or the introduction of regulations that restrict or discourage companies from outsourcing could result in a decrease in the demand for our services and could have a material adverse effect on our business, financial condition and results of operations. Other developments in the industries in which we operate may also lead to a decline in the demand for our services, and we may not be able to successfully anticipate and prepare for any such changes. Decreased demand for our services, or increased pricing pressure on us from our customers in these key industries could adversely affect our results of operations.
Furthermore, developments in the industries we serve and our expansion into new industries could shift customer demand to new services, solutions or technology. If our customers demand new services, solutions or technologies, we may be less competitive in these new areas or may need to make significant investments to meet that demand. Additionally, as we expand into serving new verticals, our solutions and technology may be used by, or generally affect, a broader base of customers and end users, which may expose us to new business and operational risks.

If our pricing structures are based on inaccurate expectations and assumptions regarding the cost and complexity of performing our work, or if we are not able to maintain favorable pricing for our services, then our contracts could be unprofitable.
We face a number of risks when pricing our contracts and setting terms with our customers. Our pricing is highly dependent on our internal forecasts, assumptions and predictions about our projects, the marketplace, global economic conditions (including foreign exchange volatility) and the coordination of operations and personnel in multiple locations with different skill sets and competencies. Our pricing and cost estimates for the work that we perform may include anticipated long-term cost savings that we expect to achieve and sustain over the life of the contract. Because of these inherent uncertainties, we may underprice our projects (particularly with fixed-price contracts), fail to accurately estimate the costs of performing the work or fail to accurately assess the risks associated with potential contracts. Any increased or unexpected costs, delays or failures to achieve anticipated cost savings, or unexpected risks we encounter in connection with the performance of this work, including those caused by factors outside our control, could make these contracts less profitable or unprofitable. Moreover, if we are not able to pass on to our customers increases in compensation costs (whether driven by competition for talent or ordinary-course pay increases) or charge premium prices when justified by market demand or the type of service, our profitability may suffer.
In addition, a number of our contracts contain conditions in pricing terms that are dependent on our ability to meet defined performance goals, service levels and completion schedules. Our failure to meet these specified conditions or our failure to meet customer expectations in such contracts may result in less profitable or unprofitable engagements.
If we are not successful in managing increasingly large and complex projects, we may not achieve our financial goals and our results of operations could be adversely affected.
To successfully perform larger and more complex projects, we need to establish and maintain effective, close relationships with our customers, continue high levels of customer satisfaction and develop a thorough understanding of our customers’ operations. In addition, we may face a number of challenges managing larger and more complex projects, including:
maintaining high-quality control and process execution standards;
maintaining planned resource utilization rates on a consistent basis and using an efficient mix of on-site, off-site and offshore staffing;
maintaining productivity levels and implementing necessary process improvements; and
controlling costs.
Our ability to successfully manage large and complex projects depends significantly on the skills of our professionals. In addition, large and complex projects may involve multiple engagements or stages, and there is a risk that a customer may choose not to retain us for additional stages or may cancel or delay additional planned engagements. Such cancellations or delays may make it difficult to plan our project resource requirements. If we fail to successfully obtain engagements for large and complex projects, we may not achieve our revenue growth and other financial goals. Even if we are successful in obtaining such engagements, failure to effectively manage these large and complex projects could damage our reputation, cause us to lose business, compress our margins and adversely affect our business and results of operations.
We face risks associated with having a long selling and implementation cycle for our services that require us to make significant resource commitments prior to realizing revenues for those services.
We have a long selling cycle for our services. Before potential customers commit to use our services, they require us to expend substantial time and resources educating them on the value of our services and our ability to meet their requirements. Therefore, our selling cycle is subject to many risks and delays over which we have little or no control, including our customers’ decision to select another service provider or in-house resources to perform the services and the timing of our customers’ budget cycles and approval processes. If our sales cycle unexpectedly lengthens for one or more large projects, it would negatively affect the timing of our revenues and our revenue growth. In certain cases, we may begin work and incur costs prior to executing a contract. A delay in our ability to obtain a signed agreement or other evidence that the parties to the agreement have approved the contract and are committed to perform their respective obligations of an arrangement, or to complete certain contract requirements, may cause fluctuations in recognized revenues between periods.
Implementing our services also involves a significant commitment of resources over an extended period of time from both our customers and us. Our current and future customers may not be willing or able to invest the time and resources necessary to implement our services, and we may fail to close sales with potential customers to whom we have devoted significant time and resources. Any significant failure to generate revenues or delays in recognizing revenues after incurring costs related to our sales or services processes could have a material adverse effect on our business.

If we are unable to collect our receivables from, or bill our unbilled services to our customers, our results of operations and cash flows could be materially adversely affected.
Our business depends on our ability to successfully obtain payment from our customers of the amounts they owe us for work performed. There is no guarantee that we will accurately assess the creditworthiness of our customers. If our customers suffer financial difficulties, it could cause them to delay payments to us, request modifications to their payment arrangements that could increase our receivables balance, or default on their payment obligations to us. Timely collection of customer balances also depends on our ability to complete our contractual commitments and bill and collect our contracted revenues. If we are unable to meet our contractual requirements, we might experience delays in collection of or inability to collect accounts receivable, and in such cases, our results of operations and cash flows could be materially adversely affected.
We face intense and increasing competition for customers and opportunities from onshore and offshore IT services and other consulting companies. If we are unable to compete successfully against competitors, pricing pressures or loss of market share could have a material adverse effect on our business.
The market for our services is highly competitive, and we expect competition to persist and intensify. We face competition from offshore IT services providers in other outsourcing destinations with low wage costs such as India and China, as well as competition from large, global consulting and outsourcing firms and in-house IT departments of large corporations. Customers tend to engage multiple IT services providers instead of using an exclusive IT services provider, which could reduce our revenues to the extent that customers obtainor place significant downward pressure on pricing among competing IT services from competing companies.providers. Customers may prefer servicesservice providers that have more locations, more personnel, more experience in a particular country or market, or that are based in countries that are more cost-competitive or have the perception of being more stable than some of the emerging markets in which we operate.
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Current or prospective customers may elect to perform certain services themselves or may be discouraged from transferring services from onshore to offshore service providers, which could seriously harm our ability to compete effectively with competitors that provide services from within the countries in which our customers operate.
Some of our present and potential competitors may have substantially greater financial, marketing or technical resources; therefore, we may be unable to retain our customers while competing against such competitors.or successfully attract new customers. Increased competition, our inability to compete successfully, pricing pressures or loss of market share could have a material adverse effect on our business. Customer buying patterns
Complying with a wide variety of legal requirements in the jurisdictions where we operate can create risks to our operations and financial condition, including liquidation of the subsidiaries that operate our major delivery centers.
Our global operations require us to comply with a wide variety of foreign laws and regulations, trade or foreign exchange restrictions or sanctions, inflation, unstable civil, political and military situations, labor issues, and legal systems that make it more difficult to enforce intellectual property, contractual, or corporate rights. Certain legal provisions in Russia, Belarus, and Ukraine, where our local subsidiaries operate important delivery centers and employ a significant number of billable and support professionals, may allow a court to order liquidation of a locally organized legal entity on the basis of its formal noncompliance with certain requirements during formation, reorganization or during its operations. If we fail to comply with certain requirements, including those relating to minimum net assets, governmental or local authorities can seek the involuntary liquidation of our local subsidiaries in court, and creditors will have the right to accelerate their claims, demand early performance of legal obligations, and demand compensation for any damages. Involuntary liquidation of any of our subsidiaries could materially adversely affect our financial condition and results of operations.
Our operating results may be negatively impacted by the loss of certain tax benefits provided to companies in our industry by the governments of Belarus and other countries.
In Belarus, one local subsidiary is a member, along with other technology companies, of High-Technologies Park. Members have a full exemption from Belarus income tax and value added tax until 2049 and are taxed at reduced amounts on obligatory social contributions and a variety of other taxes. In Russia, our local subsidiary along with other qualified IT companies, benefit from paying obligatory social contributions to the government at a significantly reduced rate as well as an exemption from value added tax in certain circumstances. If these tax benefits are changed, terminated, not extended or comparable new tax incentives are not introduced, we expect that our operating expenses and/or our effective income tax rate could increase significantly, which could materially adversely affect our financial condition and results of operations. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Provision for Income Taxes.”

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Risks Related to Regulation and Legislation
Existing policy and substantial changes to fiscal, political, regulatory and other federal policies may adversely affect our business and financial results.
Changes in general economic or political conditions in the United States could adversely affect our business. U.S. policy with respect to a variety of issues, including international trade agreements, conducting business offshore, import and export regulations, tariffs and customs duties, foreign relations, immigration laws and travel restrictions, antitrust controls and enforcement, and corporate governance laws, could have a positive or negative impact on our business.
The majority of our professionals are offshore. Companies that outsource services to organizations operating in other countries remains a topic of political discussion in many countries, including the United States, which is our largest source of revenues. The United States Congress periodically proposes legislation that could impose restrictions on offshore outsourcing and on our ability to deploy employees holding U.S. work visas to customer locations, both of which could adversely impact our business. Such legislative measures could broaden restrictions on outsourcing by federal and state government agencies and contracts and impact private industry with tax disincentives, intellectual property transfer restrictions, and restrictions on the use or availability of certain work visas.
Some of our projects require our personnel to obtain visas to travel and work at customer sites outside of our personnel’s home countries and often in the United States. Our reliance on visas to staff projects with employees who are not citizens of the country where the work is to be performed makes us vulnerable to legislative and administrative changes in the number of visas to be issued in any particular year and other work permit laws and regulations. The process to obtain the required visas and work permits can be lengthy and difficult and variations due to political forces and economic conditions in the number of permitted applications, as well as application and enforcement processes, may cause delays or rejections when trying to obtain visas. Delays in obtaining visas may result in delays in the ability of our personnel to travel to meet with and provide services to our customers or to continue to provide services on a timely basis. In addition, the availability of a sufficient number of visas without significant additional costs could limit our ability to provide services to our customers on a timely and cost-effective basis or manage our sales and delivery centers as efficiently as we otherwise could. Delays in or the unavailability of visas and work permits could have a material adverse effect on our business, results of operations, financial condition and cash flows.
We are subject to laws and regulations in the United States and other countries in which we operate, including export restrictions, economic sanctions, the FCPA, and similar anti-corruption laws. Compliance with these laws requires significant resources and non-compliance may result in civil or criminal penalties and other remedial measures.
We are subject to many laws and regulations that restrict our international operations, including laws that prohibit activities involving restricted countries, organizations, entities and persons that have been identified as unlawful actors or that are subject to U.S. sanctions. The U.S. Office of Foreign Assets Control, or OFAC, and other international bodies have imposed sanctions that prohibit us from engaging in trade or financial transactions with certain countries, businesses, organizations and individuals. We are also subject to the FCPA and anti-bribery and anti-corruption laws in other countries, all of which prohibit companies and their intermediaries from bribing government officials for the purpose of obtaining or keeping business or otherwise obtaining favorable treatment. We operate in many parts of the world that have experienced government corruption to some degree, and, in certain circumstances, strict compliance with anti-bribery laws may conflict with local customs and practices, although adherence to local customs and practices is generally not a defense under U.S. and other anti-bribery laws.
Our compliance program contains controls and procedures designed to ensure our compliance with the FCPA, OFAC and other sanctions, and laws and regulations. The continuing implementation and ongoing development and monitoring of our compliance program may be time consuming, expensive, and could result in the discovery of compliance issues or violations by us or our employees, independent contractors, subcontractors or agents of which we were previously unaware.
Any violations of these or other laws, regulations and procedures by our employees, independent contractors, subcontractors and agents, including third parties we associate with or companies we acquire, could expose us to administrative, civil or criminal penalties, fines or business restrictions, which could have a material adverse effect on our results of operations and financial condition and would adversely affect our reputation and the market for shares of our common stock and may require certain of our investors to disclose their investment in us under certain state laws.

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Risks Related to Our Industry and Customers
We generally do not have long-term commitments from our customers, our customers may terminate contracts before completion or choose not to renew contracts, and we are not guaranteed payment for services performed under contract. A loss of business or non-payment from significant customers could materially affect our results of operations.
Our ability to maintain continuing relationships with our major customers and successfully obtain payment for our services is essential to the growth and profitability of our business. However, the volume of work performed for any specific customer is likely to vary from year to year, especially since we generally are not our customers’ exclusive IT services provider and we generally do not have long-term commitments from customers to purchase our services. We may also fail to assess the creditworthiness of our customers adequately or accurately. Our customers’ ability to terminate engagements with or without cause and our customers’ inability or unwillingness to pay for services we performed makes our future revenues and profitability uncertain. Although a substantial majority of our revenues are generated from customers who also contributed to our revenues during the prior year, our engagements with our customers are typically for projects that are singular in nature. Therefore, we must seek to obtain new engagements when our current engagements end.
There are a number of factors relating to our customers that are outside of our control, which might lead them to terminate or not renew a contract or project with us, or be unable to pay us, including:
financial difficulties;
corporate restructuring, or mergers and acquisitions activity;
our inability to complete our contractual commitments and invoice and collect our contracted revenues;
change in strategic priorities or economic conditions, resulting in elimination of the impetus for the project or a reduced level of technology related spending;
change in outsourcing strategy resulting in moving more work to the customer’s in-house technology departments or to our competitors; and
replacement of existing software with packaged software supported by licensors.
Termination or non-renewal of a customer contract could cause us to experience a higher than expected number of unassigned employees and thus compress our margins until we are able to reallocate our headcount. Customers that delay payment, request modifications to their payment arrangements, or fail to meet their payment obligations to us could increase our cash collection time, cause us to incur bad debt expense, or cause us to incur expenses in collections actions. The loss of any of our major customers, a significant decrease in the volume of work they outsource to us or price they are willing or able to pay us, if not replaced by new service engagements and revenues, could materially adversely affect our revenues and results of operations.
Our revenues are highly dependent on a limited number of industries, and any decrease in demand for outsourced services in these industries could reduce our revenues and adversely affect our results of operations.
A substantial portion of our customers becomeare concentrated in five specific industry verticals: Financial Services; Software & Hi-Tech; Business Information & Media; Travel & Consumer; and Life Sciences & Healthcare. Our business growth largely depends on continued demand for our services from customers in these five industry verticals and other industries that we target or may target in the future, and also depends on trends in these industries to outsource the type of services we provide.
A downturn in any of our targeted industries, a slowdown or reversal of the trend to outsource IT services in any of these industries or the introduction of regulations that restrict or discourage companies from outsourcing could result in a decrease in the demand for our services and could have a material adverse effect on our business, financial condition and results of operations. Other developments in the industries in which we operate may increase the demand for lower cost or lower quality IT services and decrease the demand for our services or increase the pressure our customers put on us to reduce pricing. We may not be able to successfully anticipate and prepare for any such changes, which could adversely affect our results of operations.
Furthermore, developments in the industries we serve could shift customer demand to new services, solutions or technology. If our customers demand new services, solutions or technologies, we may be less competitive in these new areas or may need to make significant investments to meet that demand. Additionally, as we expand into serving new industry verticals, our solutions and technology may be used by, or generally affect, a broader base of customers and end users, which may expose us to new business and operational risks.
If our pricing structures are based on inaccurate expectations and assumptions regarding the cost and complexity of performing our work, or if we are not able to maintain favorable pricing for our services, then our contracts could be unprofitable.
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We face a number of risks when pricing our contracts and setting terms with our customers. Our pricing is highly dependent on our internal forecasts, assumptions and predictions about our projects, the marketplace, global economic conditions (including foreign exchange volatility) and the coordination of operations and personnel in multiple locations with different skill sets and competencies. Larger and more pricecomplex projects that involve multiple engagements or stages heighten those pricing risks because a customer may choose not to retain us for additional stages or delay forecasted engagements, which disrupts our planned project resource requirements. If our pricing for a project includes dedicated personnel or facilities and the customer were to slow or stop that project, we may not be able to reallocate resources to other customers. Our pricing and cost estimates for the work that we perform may include anticipated long-term cost savings that we expect to achieve and sustain over the life of the contract. Because of such inherent uncertainties, we may underprice our projects, fail to accurately estimate the costs of performing the work or fail to accurately assess the risks associated with potential contracts, such as defined performance goals, service levels, and completion schedules. The risk of underpricing our services or underestimating the costs of performing the work is heightened in fixed-price contracts and in contracts that require our customer to receive a productivity benefit as a result of the services performed under the contract. If we fail to accurately estimate the resources, time or quality levels required to complete such engagements, or if the cost to us of employees, facilities, or technology unexpectedly increases, we could be exposed to cost overruns. Any increased or unexpected costs, delays or failures to achieve anticipated cost savings, or unexpected risks we encounter in connection with the performance of the services, including those caused by factors outside our control, could make these contracts less profitable or unprofitable.
Our industry is sensitive to the economic environment and acceptingthe industry tends to decline during general economic downturns. Given our significant revenues from North America and Europe, if those economies weaken, pricing for our services may be depressed and our customers may reduce or postpone their technology related spending significantly, which may in turn lower the demand for our services and negatively affect our revenues and profitability.
We face risks associated with having a long selling and implementation cycle for our services that require us to make significant resource commitments prior to realizing revenues for those services.
We have a long selling cycle for our services. Before potential customers commit to use our services, they require us to expend substantial time and resources educating them on the value of low-cost suppliersour services and our ability to meet their requirements. Therefore, our selling cycle is subject to many risks and delays over which we have little or no control, including our customers’ decision to select another service provider or in-house resources to perform the services, the timing of our customers’ budget cycles, and customer procurement and approval processes. If our sales cycle unexpectedly lengthens for one or more large projects, it could negatively affect the timing of our revenues and our revenue growth. In certain cases, we may begin work and incur costs prior to executing a contract, which may cause fluctuations in recognizing revenues between periods or jeopardize our ability to collect payment from customers.
Implementing our services also involves a significant commitment of resources over an extended period of time from both our customers and us. Our current and future customers may not be willing or able to invest the time and resources necessary to implement our services, and we may fail to close sales with less emphasispotential customers despite devoting significant time and resources. Any significant failure to generate revenues or delays in recognizing revenues after incurring costs related to our sales or services processes could have a material adverse effect on quality.our business.
If we are unable to adapt to rapidly changing technologies, methodologies and evolving industry standards, we may lose customers and our business could be materially adversely affected.
Rapidly changing technologies, methodologies and evolving industry standards are inherent in the market for our products and services. Our future success will depend in part upon our ability to anticipate developments in our industry, enhance our existing services, and to develop and introduce new services, toprovide enhancements and new features for our products,and keep pace with such changes and developments andare critical to meetmeeting changing customer needs. The process of developingDeveloping solutions for our customer solutionscustomers is extremely complex and is expected to become increasingly complex and expensive in the future due to the introduction of new platforms, operating systems, technologies and methodologies. Our ability to keep pace with, anticipate or respond to these changes and developments is subject to a number of risks, including that:
we may find it difficultnot be able to develop new, or costly to update ourexisting services, applications, tools and software and to develop new services quickly or inexpensively enough to meet our customers’ needs;
we may find it difficult or costly to make some features of ourexisting software and products work effectively and securely over the Internetinternet or with new or changed operating systems;
we may find it difficultchallenging to develop new, or costly to update ourexisting software, services, and servicesproducts to keep pace with evolving industry standards, methodologies, regulatorytechnologies, and otherregulatory developments in the industries where our customers operate;operate at a pace and cost that is acceptable to our customers; and
we may find it difficult to maintain a high level of quality in implementinglevels with new technologies and methodologies.
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We may not be successful in anticipating or responding to these developments in a timely manner, or if we do respond, the services, products, technologies or methodologies we develop or implement may not be successful in the marketplace. Further, services, products, technologies or methodologies that are developed by our competitors develop may render our services or products non-competitive or obsolete. Our failure to enhance our existing services and products and to develop and introduce new services and products to promptly address the needs of our customers could have a material adverse effect on our business.

If we cause disruptions to our customers’ businesses, provide inadequate service, or breach contractual obligations, our customers may have claims for substantial damages against us and our reputation may be damaged. Our insurance coverage may be inadequate to protect us against such claims.
Undetected software design defects,If our professionals make errors in the course of delivering services or we fail to meet contractual obligations to a customer, these errors or failures could disrupt the customer’s business or expose confidential or personally identifiable information. Any of these events could result in a reduction in our revenues, damage to our reputation, and could also result in a customer terminating our engagement and making claims for substantial damages against us. Some of our customer agreements do not limit our potential liability for occurrences such as breaches of confidentiality and intellectual property infringement indemnity, and we cannot generally limit liability to third parties with which we do not have a contractual relationship. In some cases, breaches of confidentiality obligations, including obligations to protect personally identifiable information, may entitle the aggrieved party to equitable remedies, including injunctive relief.
Although we maintain professional liability insurance, product liability insurance, cyber incident insurance, commercial general and property insurance, business interruption insurance, workers’ compensation coverage, and umbrella insurance for certain of our operations, our insurance coverage does not insure against all risks in our operations or all claims we may receive. Damage claims from customers or third parties brought against us or claims that we initiate due to the disruption of our business, information security systems, litigation, or natural disasters, may not be covered by our insurance, may exceed the limits of our insurance coverage, and may result in losssubstantial costs and diversion of businessresources even if insured. Some types of insurance are not available on reasonable terms or at all in liabilities thatsome countries in which we operate, and we cannot insure against damage to our reputation. The assertion of one or more large claims against us, whether or not successful and whether or not insured, could materially adversely affect our reputation, business, financial condition and results of operations.

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A significant failure in our systems, telecommunications or IT infrastructure could harm our service model, which could result in a reduction of our revenues and otherwise disrupt our business.
Our service model relies on maintaining active voice and data communications, online resource management, financial and operational record management, customer service and data processing systems between our customer sites, our delivery centers and our customer management locations. Our business activities may be materially disrupted in the event of a partial or complete failure of any of these technologies, which could be due to software development solutions involvemalfunction, computer virus attacks, conversion errors due to system upgrades, damage from fire, earthquake, power loss, telecommunications failure, unauthorized entry, government shutdowns, demands placed on internet infrastructure by growing numbers of users, increased bandwidth requirements or other events beyond our control. Our crisis management procedures, business continuity, and disaster recovery plans may not be effective at preventing or mitigating the effects of such disruptions, particularly in the case of a high degreecatastrophic event. Loss of technological complexity, have unique specificationsall or part of the infrastructure or systems for a period of time could hinder our performance or our ability to complete customer projects on time which, in turn, could lead to a reduction of our revenues or otherwise materially adversely affect our business and business reputation.
Our ability to generate and retain business could depend on our reputation in the marketplace.
Our services are marketed to customers and prospective customers based on a number of factors, including reputation. Our corporate reputation is a significant factor in our customers’ evaluation of whether to engage our services. Our customers’ perception of our ability to add value through our services is critical to the profitability of our engagements. We believe the EPAM brand name and our reputation are important corporate assets that help distinguish our services from those of our competitors and contribute to our efforts to recruit and retain talented employees.
Our corporate reputation is potentially susceptible to damage by actions or statements made by current or former customers and employees, competitors, vendors, adversaries in legal proceedings, government regulators, as well as members of the investment community and the media. There is a risk that negative information about us, even if untrue, could adversely affect our business, could cause damage to our reputation and be challenging to repair, could make potential or existing customers reluctant to select us for new engagements, and could contain design defectsadversely affect our recruitment and retention efforts. Damage to our reputation could also reduce the value and effectiveness of the EPAM brand name and could reduce investor confidence in us.
We may not be able to prevent unauthorized use of our intellectual property, and our intellectual property rights may not be adequate to protect our business and competitive position.
We rely on a combination of copyright, trademark, patent, unfair competition and trade secret laws, as well as intellectual property assignment and confidentiality agreements and other methods to protect our intellectual property rights. Protection of intellectual property rights and confidentiality in some countries in which we operate may not be as effective as in other countries with more developed intellectual property protections.
We require our employees and independent contractors to assign to us all intellectual property and work product they create in connection with their employment or software errorsengagement. These assignment agreements also obligate our personnel to keep proprietary information confidential. If these agreements are not enforceable in any of the jurisdictions in which we operate, or are breached, we cannot ensure that we will solely own the intellectual property they create or that our proprietary information will not be disclosed. Our customers and certain vendors are difficultgenerally obligated to detectkeep our information confidential, but if these contractual obligations are not entered, or correct. Errorsare breached or defectsdeemed unenforceable, our trade secrets, know-how or other proprietary information may be subject to unauthorized use, misappropriation or disclosure. Reverse engineering, unauthorized copying or other misappropriation of our and our customers’ proprietary technologies, tools and applications could enable unauthorized parties to benefit from our or our customers’ technologies, tools and applications without payment and may make us liable to our customers for damages and compensation, which could harm our business and competitive position.
We rely on our trademarks, trade names, service marks and brand names to distinguish our services and solutions from the services of our competitors. We have registered or applied to register many of these trademarks. Third parties may oppose our trademark applications, or otherwise challenge our use of our trademarks. In the event that our trademarks are successfully challenged, we could be forced to rebrand our services and solutions, which could result in the loss of current customersbrand recognition, and loss of, or delay in, revenues, loss of market share, loss of customer data, a failurecould require us to attractdevote additional resources to advertising and marketing new customers or achieve market acceptance, diversion of development resources and increased support or service costs. Webrands. Further, we cannot provide assurance that despite testingcompetitors will not infringe our trademarks, or that we will have adequate knowledge of infringement or resources to enforce our trademarks. If we do enforce our trademarks and our other intellectual property rights through litigation, we may not be successful and the litigation may result in substantial costs and diversion of resources and management attention.
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We may face intellectual property infringement claims that could be time-consuming and costly to defend. If we fail to defend ourselves against such claims, we may lose significant intellectual property rights and may be unable to continue providing our existing services.
Our success largely depends on our ability to use and develop our technology, tools, code, methodologies, products, and services without infringing the intellectual property rights of third parties, including patents, copyrights, trade secrets and trademarks. We may be unaware of intellectual property rights relating to our products or services that may give rise to potential infringement claims against us. If those intellectual property rights are potentially relevant to our service offerings, we may need to license those rights in order to continue to use the applicable technology, but the holders of those intellectual property rights may be unwilling to license those rights to us on commercially acceptable terms, if at all. There may also be technologies licensed to and relied on by us that if subject to infringement or misappropriation claims by third parties, may become unavailable to us if such third parties obtain an injunction to prevent us from delivering our services or using technology involving the allegedly infringing intellectual property.
We typically indemnify customers who purchase our products, services and solutions against potential infringement of third-party intellectual property rights, which subjects us to the risk and cost of defending the underlying infringement claims. These claims may require us to initiate or defend protracted and costly litigation on behalf of our customers, regardless of the merits of these claims, and us, errors willour indemnification obligations are often not be found in newsubject to liability limits or exclusion of consequential, indirect or punitive damages. Intellectual property litigation could also divert our management’s attention from our business and existing or potential customers could defer or limit their purchase or use of our software product development services or solutions until we resolve such litigation. If any of these claims succeed, we may be forced to pay damages on behalf of our customers, redesign or cease offering our allegedly infringing products, services, or solutions, or obtain licenses for the intellectual property that such services or solutions allegedly infringe. If we cannot obtain all necessary licenses on commercially reasonable terms, our customers may be forced to stop using our services or solutions.
Any such errorsof these actions, regardless of the outcome of litigation or merits of the claim, could result in litigation, other claims for damages against us, as well as reputational harmdamage our reputation and thus could materially adversely affect our business.business, financial condition and results of operations.
Risks Related to Information Security and Data Protection
Security breaches and other disruptions to network security could compromise our information and expose us to liability, which would cause our business and reputation to suffer.
In the ordinary course of business, we have access to collect, store, process, transmit, and transmitview sensitive or confidential data, including intellectual property, our proprietary business information and that of our customers, and personally identifiable information ofbelonging to us, our customers, our respective employees, and employees,other end users. This information is stored in our data centers and on our networks.networks or in the data centers and networks of third-party providers. Physical security and the secure processing, maintenance and transmission of this information is critical to our operations and business strategy. DespiteSome of our security measures,customers seek additional assurances for the protection of their sensitive information, including personally identifiable information, and attach greater liability in the event that their sensitive information is disclosed. At times, to achieve commercial objectives, we may agree to greater liability exposure to our customers.
Individuals, including employees, contractors and other third parties in our information technologysecurity supply chain, as well as groups and larger, sophisticated collections of hackers, such as state-sponsored organizations, all pose threats to our information security. These individual, group, and organized actors have a variety of methods at their disposal, including deploying malicious software, exploiting vulnerabilities in hardware, software, or infrastructure, may be vulnerableusing social engineering or deceptive techniques, and executing coordinated attacks to attacks by hackerscompromise our services, disrupt our operations or breached duegain access to human error, malfeasance or other disruptions. Any such breach could compromise our networks and data centers.

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Threats to information security evolve constantly and are increasingly sophisticated and complex, which makes detecting and successfully defending against them more difficult. Undetected vulnerabilities may persist in our network environment over long periods of time and could spread to the networks and systems of our suppliers and customers. We frequently update and improve our information security environment and assess and adopt new methods, devices, and technologies, but our policies and information security controls may not keep pace with emerging threats. We have in the past been subject to cyberattacks and expect to continue to be the target of malicious attacks. Despite our multiple security measures, any breach of our facilities, network, or information security defenses compromises the information stored there couldin those locations and allows the accessed information to be accessed,held for ransom, publicly disclosed, misappropriated, lost or stolen. Such a breach, misappropriation, or disruption could also disrupt our operations and the services we provide to customers, damage our reputation, and cause a loss of confidence in our products and services, as well as require us to expend significant resources to protect against further breaches and to rectify problems caused by these events. Any such access, disclosure or other loss of information could result in legal claims or proceedings, liability under applicable laws, and regulatory penalties and could adversely affect our business, revenues and competitive position.
We may be liableDevelopment and deployment of measures to protect our customers for damages caused by the disclosureinformation security or that of confidential information, system failures or errors.
If any person, including any of our personnel, misappropriates sensitive or confidential customer information, including personally identifiable information, we could be subject to significant liability from our customers or from our customers’ customers for breaching contractual confidentiality provisions or privacy laws. Some of our customer agreements do not limit our potential liability for certain types of occurrences, including breaches of confidentiality and infringement indemnity. Furthermore, breaches of confidentiality may entitle the aggrieved party to equitable remedies, including injunctive relief. Any such breach or misappropriation resulting in unauthorized disclosure of sensitive or confidential customer information, or a violation of intellectual property rights, whether through employee misconduct, breach of our computer systems, systems failure or otherwise, may subject us to liabilities, damage our reputation and cause us to lose customers.
If we cause disruptions to our customers’ businesses or provide inadequate service, our customers may have claims for substantial damages against us, whichbe inadequate and could cause us to lose customers, have a negative effect on our reputation and adversely affect our results of operations.
IfTo defend against information security threats internally, at our billable professionals make errorsthird-party providers, and on our customers’ systems, we must continuously engineer or purchase more secure products and services, enhance security and reliability features, improve deployment and compliance with software updates, assess and develop mitigation strategies and technologies to help secure information, hire information security specialists, and maintain a security infrastructure that protects our network, products, and services, and the software we build for our customers. We must also educate our employees, contractors, and customers about the need to effectively use security measures. Our customers, particularly those in the courseFinancial Services and Life Sciences & Healthcare industry verticals, may have enhanced or particular security requirements which we must address in our engineering and development services.
The cost of delivering servicesinformation security measures, either to protect our information or the information of our customers, could reduce our profitability. Actual or failperceived security vulnerabilities in our software and services, even if those vulnerabilities are the result of hardware or software developed by third parties, could harm our reputation and lead customers to consistently meetuse our competitors, reduce or delay future purchases of our services, or to seek compensation or damages.
Changes in privacy and data protection regulations could expose us to risks of noncompliance and costs associated with compliance.
EPAM is subject to the serviceGDPR, the substantially similar U.K. GDPR, and the CCPA, each of which imposes significant restrictions and requirements relating to the processing of personal data. These and other state, national and international data protection laws that are or will soon be effective are more burdensome than historical privacy standards, especially in the United States. The CCPA , U.K. GDPR, and GDPR each established complex legal obligations that organizations must follow with respect to the processing of personal data, including a prohibition on the transfer of personal information to third parties or to other countries, and the imposition of additional notification, security and other control measures.
Enforcement actions taken by the European Union and U.K. data protection authorities, in the case of GDPR and U.K. GDPR, respectively, or by individuals or the California regulatory authorities, in the case of the CCPA, as well as audits or investigations by one or more individuals, organizations, or foreign government agencies could result in penalties and fines for non-compliance or direct claims against us in the event of any loss or damage as a result of a customer,breach of these regulations. The burden of compliance with additional data protection requirements may result in significant additional costs, complexity and risk in our services and customers may seek to shift the potential risks resulting from the implementation of data privacy legislation to us. We are required to establish processes and change certain operations in relation to the processing of personal data as a result of GDPR, U.K. GDPR, and CCPA, which may involve substantial expense and distraction from other aspects of our business.
Undetected software design defects, errors or failures could disrupt the customer’s business, which couldmay result in a reductionloss of business or in our revenues or a claim for substantial damages against us, and could also result in a customer terminating our engagement. Any failure in a customer’s system or breach of security relating to the services we provide to the customer could damage our reputation or result in a claim for substantial damages against us, regardless of our responsibility for such failure. The assertion of one or more large claims against us, whether or not successful,liabilities that could materially adversely affect our reputation, business, financial conditionbusiness.
Our software development solutions involve a high degree of technological complexity, have unique specifications and resultscould contain design defects or software errors that are difficult to detect or correct. Errors or defects may result in the loss of operations.

A significantcurrent customers, revenues, market share, or customer data, a failure to attract new customers or achieve market acceptance and could divert development resources and increase support or service costs. We cannot provide assurance that, despite testing by our customers and us, errors will not be found in our systems, telecommunicationsthe software products we develop or IT infrastructure could harm our service model, whichthe services we perform. Any such errors could result in a reduction of our revenuesclaims for damages against us, litigation, and otherwise disrupt our business.
Our service model relies on maintaining active voice and data communications, online resource management, financial and operational record management, customer service and data processing systems between our client sites, our delivery centers and our customer management locations. Our business activities may be materially disrupted in the event of a partial or complete failure of any of these technologies, whichreputational harm that could be due to software malfunction, computer virus attacks, conversion errors due to system upgrades, damage from fire, earthquake, power loss, telecommunications failure, unauthorized entry, demands placed on internet infrastructure by growing numbers of users and time spent online, increased bandwidth requirements or other events beyond our control. Loss of all or part of the infrastructure or systems for a period of time could hinder our performance or our ability to complete customer projects on time which, in turn, could lead to a reduction of our revenues or otherwise materially adversely affect our business and business reputation.business.
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General Risk Factors
Our ability to generate and retain business could depend on our reputation in the marketplace.stock price is volatile.
Our services are marketed to customerscommon stock has at times experienced substantial price volatility as a result of variations between our actual and prospective customers based on a number of factors. Since many ofanticipated financial results, announcements by our specific customer engagements involve unique services and solutions,competitors, third parties, or us, projections or speculation about our corporate reputation is a significant factor in our customers’ evaluation of whether to engage our services, and our customers’ perception of our ability to add value through our services is critical to the profitability of our engagements. We believe the EPAM brand name and our reputation are important corporate assetsbusiness or that help distinguish our services from those of our competitors or industry by the media or investment analysts, geopolitical events or uncertainty about inflation or other current global economic conditions. The stock market, as a whole, also has experienced price and contributevolume fluctuations that have affected the market price of many technology companies in ways that may have been unrelated to these companies’ operating performance. Furthermore, we believe our stock price should reflect future growth and profitability expectations and, if we fail to meet these expectations, our stock price may significantly decline.
Expense related to our effortsliability-classified restricted stock units, which are subject to recruitmark-to-market accounting, and retain talented employees.
However, our corporate reputation is potentially susceptible to damage by actions or statements made by current or former customers and employees, competitors, vendors, adversaries in legal proceedings, government regulators, as well as membersthe calculation of the investment community andweighted-average diluted shares outstanding in accordance with the media. There is a risk that negative information abouttreasury method are both affected by our Company, even if untrue, could adverselystock price. Any fluctuations in the price of our stock will affect our business. In particular, damage to our reputation could be challenging to repair, could make potential or existing customers reluctant to select us for new engagements, and could adversely affect our recruitment and retention efforts. Damage to our reputation could also reduce the value and effectiveness of the EPAM brand name and could reduce investor confidence in us.future operating results.
We may invest substantial cash in new facilitiesneed additional capital, and physical infrastructure, anda failure to raise additional capital on terms favorable to us, or at all, could limit our profitability could be reduced if our business does not grow proportionately.
To support the continued growth of our business, we may invest in new facilities and physical infrastructure. We may encounter cost overruns or project delays in connection with new facilities. These expansions will likely increase our fixed costs and if we are unableability to grow our business and revenues proportionately,develop or enhance our profitabilityservice offerings to respond to market demand or competitive challenges.
We believe that our current cash, cash flow from operations and expanded revolving line of credit are sufficient to meet our anticipated cash needs for at least the next twelve months. We may, however, require additional cash resources due to changed business conditions or other future developments, including any investments or acquisitions that we may decide to pursue. If these resources are insufficient to satisfy our cash requirements, we may seek to sell additional equity or debt securities or obtain another credit facility, and we cannot be reduced.
If we failcertain that such additional financing would be available on terms acceptable to integrateus or manage acquired companies efficiently, or if the acquired companies do not performat all. The sale of additional equity securities could result in dilution to our expectations,stockholders, and additional indebtedness would result in increased debt service costs and obligations and could impose operating and financial covenants that would further restrict our overall profitability and growth plans could be materially adversely affected.operations.
PartOur hedging program is subject to counterparty default risk.
We enter into foreign currency forward contracts with a number of our expansion strategy includes strategic acquisitions. These transactions involve significant challenges, includingcounterparties. As a result, we are subject to the risk that the counterparty to one or more of these contracts defaults on its performance under the contract. During an acquisition does not advanceeconomic downturn, the counterparty’s financial condition may deteriorate rapidly and with little notice and we may be unable to take action to protect our exposure. In the event of a counterparty default, we could incur significant losses, which may harm our business strategy, that we do not achieve a satisfactory return on our investment, that we are unable to successfully integrate an acquired company’s employees, customer relationships and operations, and that the transactions divert significant management attention and financial resourcescondition. In the event that one or more of our counterparties becomes insolvent or files for bankruptcy, our ability to eventually recover any losses suffered as a result of that counterparty’s default may be limited by the liquidity of the counterparty.
War, terrorism, other acts of violence or natural or man-made disasters may affect the markets in which we operate, our customers, and our service delivery.
Our business may be negatively affected by instability, disruption or destruction in the geographic regions where we operate. War, terrorism, riot, civil insurrection or social unrest; man-made and natural disasters, the severity and frequency of which have increased due to climate change, and include famine, flood, fire, earthquake, pandemics and other regional or global health crises, storm or disease, may cause customers to delay their decisions on spending for the services we provide and give rise to sudden significant changes in regional and global economic conditions and cycles. Our crisis management procedures, business continuity, and disaster recovery plans may not be effective at preventing or mitigating the effects of such disasters, particularly in the case of simultaneous or catastrophic events. These events pose significant security risks to our people, the facilities where they work, our operations, electricity and other utilities, communications, travel, and network services, and the disruption of any or all of them could materially adversely affect our financial results. Travel restrictions resulting from our ongoing business. These challengesnatural or man-made disruptions and political or social conflict increase the difficulty of obtaining and retaining highly-skilled and qualified professionals and could disrupt our ongoing business andunexpectedly increase our labor costs and expenses, including causing usboth of which could also adversely affect our ability to incur significant one-time expenses and write-offs, and making it more difficult and complex forserve our management to effectively manage our operations. If we are not able to successfully integrate an acquired entity and its operations and to realize the benefits envisioned for such acquisition, our overall growth and profitability plans may be adversely affected.customers.

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Our effective tax rate could be materially adversely affected by several factors.
We conduct business globally and file income tax returns in multiple jurisdictions. Our effective tax rate could be materially adversely affected by several factors, including changes in the amount of income taxed by or allocated to the various jurisdictions in which we operate that have differing statutory tax rates; changing tax laws, regulations and interpretations of such tax laws in multipleone or more jurisdictions; and the resolution of issues arising from tax audits or examinations and any related interest or penalties.

The determination of our provision for income taxes and other tax liabilities requires estimation, judgment and calculations where the ultimate tax determination may not be certain. Our determination of tax liability is always subject to review or examination by authorities in various jurisdictions. If a tax authority in any jurisdiction reviews any of our tax returns and proposes an adjustment, including, but not limited to, a determination that the transfer prices and terms we have applied are not appropriate, such an adjustment could have a negative impact on our business.results of operations, business, and profitability. In addition, any significant changes enacted by the current U.S. presidential administration to the Tax Cuts and Jobs Act (“U.S. Tax Act”) enacted in 2017, or to regulatory guidance associated with the U.S. Tax Act, could materially adversely affect our effective tax rate.
Our operating results may be negatively impacted by the loss of certain tax benefits provided to companies in our industry by the governments of Belarus and other countries.
In Belarus, our local subsidiary along with other member technology companies of High-Technologies Park have a full exemption from Belarus income tax and value added tax until 2049 and are taxed at reduced rates on a variety of other taxes. In Russia, our local subsidiary along with other qualified IT companies, benefit from paying obligatory social contributions to the government at a significantly reduced rate as well as an exemption from value added tax in certain circumstances. If these tax benefits are changed, terminated, not extended or comparable new tax incentives are not introduced, we expect that our effective income tax rate and/or our operating expenses would increase significantly, which could materially adversely affect our financial condition and results of operations. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Provision for Income Taxes.”
There may be adverse tax and employment law consequences if the independent contractor status of some of our personnel or the exempt status of our employees is successfully challenged.
In several countries, certain of our personnel are retained as independent contractors. The criteria to determine whether an individual is considered an independent contractor or an employee are typically fact sensitive and vary by jurisdiction, as can the interpretation of the applicable laws. If a government authority or court makes any adverse determination with respect to some or all of our independent contractors, we could incur significant costs, including for prior periods, in respect of tax withholding, social security taxes or payments, workers’ compensation and unemployment contributions, and recordkeeping, or we may be required to modify our business model, any of which could materially adversely affect our business, financial condition and results of operations. 
Our insurance coverage may be inadequate to protect us against losses.
Although we maintain some insurance coverage, including professional liability insurance, property insurance coverage for certain of our facilities and equipment and business interruption insurance coverage for certain of our operations, we do not insure for all risks in our operations. If any claims for injury are brought against us, or if we experience any business disruption, litigation or natural disaster, we might incur substantial costs and diversion of resources.
Most of the agreements we have entered into with our customers require us to purchase and maintain specified insurance coverage during the terms of the agreements, including commercial general insurance or public liability insurance, umbrella insurance, product liability insurance, and workers’ compensation insurance. Some of these types of insurance are not available on reasonable terms or at all in some countries in which we operate.
The banking and financial systems in less developed markets where we hold funds remain less developed than those in some more developed markets, and a banking crisis could place liquidity constraints on our business and materially adversely affect our business and financial condition.
We have cash in banks in countries such as Belarus, Russia, Ukraine, Kazakhstan and Armenia, where the banking sector remains subject to periodic instability, banking and other financial systems generally do not meet the banking standards of more developed markets, and bank deposits made by corporate entities are not insured. A banking crisis, or the bankruptcy or insolvency of banks through which we receive or with which we hold funds, particularly in Belarus, may result in the loss of our deposits or adversely affect our ability to complete banking transactions in that region, which could materially adversely affect our business and financial condition.

Our business could be negatively affected if we incur legal liability, including with respect to our indemnification obligations, in connection with providing our solutions and services.
If we fail to meet our contractual obligations or otherwise breach obligations to our customers, we could be subject to legal liability. If we cannot or do not perform our obligations, we could face legal liability and our contracts might not always protect us adequately through limitations on the scope and/or amount of our potential liability. As a result, we might face significant legal liability and payment obligations, and our financial condition and results of operations could be materially adversely affected. Furthermore, as we expand our business through strategic acquisitions and organically, our new and existing contracts with customers may contain terms that do not fully protect us against new risks, which may increase our potential exposure to losses.
We may not be able to prevent unauthorized use of our intellectual property, and our intellectual property rights may not be adequate to protect our business and competitive position.
We rely on a combination of copyright, trademark, unfair competition and trade secret laws, as well as intellectual property assignment and confidentiality agreements and other methods to protect our intellectual property rights. Protection of intellectual property rights and confidentiality in some countries in which we operate may not be as effective as in the United States or other countries with more mature legal systems.
When personnel start with EPAM, we require our employees and independent contractors to enter into written agreements, which assign to EPAM all intellectual property and work product made, developed or conceived by them in connection with their employment or engagement with us. These agreements also provide that any confidential or proprietary information disclosed or otherwise made available by us be kept confidential. These agreements may not be enforceable in certain jurisdictions in which we operate, and we cannot ensure that we would be successful in defending a challenge by our current or former employees or independent contractors to such agreements. We also enter into confidentiality and non-disclosure agreements with our customers and certain vendors; however, these agreements may not fully protect our trade secrets, know-how or other proprietary information in the event of any unauthorized use, misappropriation or disclosure. Reverse engineering, unauthorized copying or other misappropriation of our and our customers’ proprietary technologies, tools and applications could enable third parties to benefit from our or our customers’ technologies, tools and applications without paying them for doing so, and our customers may hold us liable for that act and seek damages and compensation from us, which could harm our business and competitive position.
We rely on our trademarks, trade names, service marks and brand names to distinguish our services and solutions from the services of our competitors, and have registered or applied to register many of these trademarks. Third parties may oppose our trademark applications, or otherwise challenge our use of our trademarks. In the event that our trademarks are successfully challenged, we could be forced to rebrand our services and solutions, which could result in loss of brand recognition, and could require us to devote resources to advertising and marketing new brands. Further, we cannot provide assurance that competitors will not infringe our trademarks, or that we will have adequate resources to enforce our trademarks.
We may need to enforce our intellectual property rights through litigation. Litigation relating to our intellectual property may not prove successful and might result in substantial costs and diversion of resources and management attention.
We may face intellectual property infringement claims that could be time-consuming and costly to defend. If we fail to defend ourselves against such claims, we may lose significant intellectual property rights and may be unable to continue providing our existing services.
Our success largely depends on our ability to use and develop our technology, tools, code, methodologies and services without infringing the intellectual property rights of third parties, including patents, copyrights, trade secrets and trademarks. We may be subject to litigation involving claims of patent infringement or violation of other intellectual property rights of third parties.
We typically indemnify customers who purchase our services and solutions against potential infringement of intellectual property rights, which subjects us to the risk of indemnification claims. These claims may require us to initiate or defend protracted and costly litigation on behalf of our customers, regardless of the merits of these claims and are often not subject to liability limits or exclusion of consequential, indirect or punitive damages. If any of these claims succeed, we may be forced to pay damages on behalf of our customers, redesign or cease offering our allegedly infringing services or solutions, or obtain licenses for the intellectual property that such services or solutions allegedly infringe. If we cannot obtain all necessary licenses on commercially reasonable terms, our customers may be forced to stop using our services or solutions.

The holders of patents and other intellectual property rights potentially relevant to our service offerings may make it difficult for us to acquire a license on commercially acceptable terms. In addition, we may be unaware of intellectual property registrations or applications relating to our services that may give rise to potential infringement claims against us. There may also be technologies licensed to and relied on by us that are subject to infringement or other corresponding allegations or claims by third parties, which may damage our ability to rely on such technologies.
Parties making infringement claims may be able to obtain an injunction to prevent us from delivering our services or using technology involving the allegedly infringing intellectual property. Intellectual property litigation is expensive, time-consuming and could divert management’s attention from our business. Protracted litigation could also result in existing or potential customers deferring or limiting their purchase or use of our software product development services or solutions until resolution of such litigation, or could require us to indemnify our customers against infringement claims in certain instances. Any of these actions, regardless of the outcome of litigation or merits of the claim, could damage our reputation and materially adversely affect our business, financial condition and results of operations.
We are subject to laws and regulations in the United States and other countries in which we operate, including export restrictions, economic sanctions and the Foreign Corrupt Practices Act, or FCPA, and similar anti-corruption laws. If we are not in compliance with applicable legal requirements, we may be subject to civil or criminal penalties and other remedial measures.
As a company with international operations, we are subject to many laws and regulations restricting our operations, including activities involving restricted countries, organizations, entities and persons that have been identified as unlawful actors or that are subject to U.S. sanctions imposed by the Office of Foreign Assets Control, or OFAC, or other international sanctions that prohibit us from engaging in trade or financial transactions with certain countries, businesses, organizations and individuals. We are subject to the FCPA, which prohibits U.S. companies and their intermediaries from bribing foreign officials for the purpose of obtaining or keeping business or otherwise obtaining favorable treatment, and anti-bribery and anti-corruption laws in other countries. We operate in many parts of the world that have experienced government corruption to some degree, and, in certain circumstances, strict compliance with anti-bribery laws may conflict with local customs and practices, although adherence to local customs and practices is generally not a defense under U.S. and other anti-bribery laws.
We have a compliance program with controls and procedures designed to ensure our compliance with the FCPA, OFAC sanctions, and other sanctions, laws and regulations. The continuing implementation and ongoing development and monitoring of the program may be time consuming and expensive, and could result in the discovery of issues or violations with respect to the foregoing by us or our employees, independent contractors, subcontractors or agents of which we were previously unaware.
Any violations of these or other laws, regulations and procedures by our employees, independent contractors, subcontractors and agents could expose us to administrative, civil or criminal penalties, fines or business restrictions, which could have a material adverse effect on our results of operations and financial condition and would adversely affect our reputation and the market for shares of our common stock and may require certain of our investors to disclose their investment in our Company under certain state laws.
Changes in the European regulatory environment regarding privacy and data protection regulations could expose us to risks of noncompliance and costs associated with compliance.
EPAM is subject to the European GDPR, which imposes significant restrictions and requirements relating to the processing of personal data that are more burdensome than current privacy standards in the United States. GDPR establishes complex legal obligations that organizations must follow with respect to the processing of personal data, including a prohibition on the transfer of personal information from the European Union to other countries whose laws do not protect personal data to an adequate level of privacy or security, and the imposition of additional notification, security and other control measures. 
Our customers and we are at risk of enforcement actions taken by the European Union data protection authorities, and we may face audits or investigations by one or more foreign government agencies relating to our compliance with these regulations, which could result in penalties and fines for non-compliance. Moreover, individuals or organizations can make direct claims against us in the event of any loss or damage as a result of a breach of these regulations.  
Some customers are seeking additional assurances from us about our processing of personal data provided or made available by our customers to us in the course of our business. The burden of compliance with additional customer requirements may result in significant additional cost, complexity and risk in our services. We may experience changes in customer behaviors due to the potential risks resulting from the implementation of GDPR. We are required to establish processes and change certain operations in relation to the processing of personal data as a result of GDPR, which may involve substantial expense and distraction from other aspects of our business.

Anti-outsourcing legislation and restrictions on immigration, if adopted, may affect our ability to compete for and provide services to customers in the United States or other countries, which could hamper our growth and cause our revenues to decline.
The majority of our professionals are offshore. Some of our projects require a portion of the work to be undertaken at our customers’ facilities, which may require our personnel to obtain work authorizations to travel and work at client sites outside of our personnel’s home countries. The ability of our employees to work in necessary locations around the world depends on their ability to obtain the required visas and work permits, and this process can be lengthy and difficult. Immigration laws are subject to legislative change, as well as to variations in standards of application and enforcement due to political forces and economic conditions. Moreover, delays in the process to obtain visas may result in delays in the ability of our personnel to travel to meet with our customers, provide services to our customers or to continue to provide services on a timely basis, which could have a material adverse effect on our business, results of operations, financial condition and cash flows.
In addition, the issue of companies outsourcing services to organizations operating in other countries is a topic of political discussion in many countries, including the United States, which is our largest source of revenues. It is possible that pending legislation in the United States regarding offshore outsourcing may impose restrictions on our ability to deploy employees holding U.S. work visas to customer locations, which could adversely impact our business. If enacted, such measures may broaden restrictions on outsourcing by federal and state government agencies and on government contracts with firms that outsource services directly or indirectly, impact private industry with measures such as tax disincentives or intellectual property transfer restrictions, and/or restrict the use of certain work visas.
Our reliance on visas for a number of employees makes us vulnerable to such changes and variations as it affects our ability to staff projects with employees who are not citizens of the country where the work is to be performed. We may not be able to obtain a sufficient number of visas for our employees or we may encounter delays or additional costs in obtaining or maintaining such visas, in which case we may not be able to provide services to our customers on a timely and cost-effective basis or manage our sales and delivery centers as efficiently as we otherwise could, any of which could hamper our growth and cause our revenues to decline.
Our subsidiaries in Belarus, Russia, and Ukraine can be forced into liquidation on the basis of formal noncompliance with certain legal requirements.
We operate in Belarus, Russia and Ukraine primarily through locally organized subsidiaries. Certain provisions of Russian law and the laws of the other countries may allow a court to order liquidation of a locally organized legal entity on the basis of its formal noncompliance with certain requirements during formation, reorganization or during its operations. If the company fails to comply with certain requirements including those relating to minimum net assets, governmental or local authorities can seek the involuntary liquidation of such company in court, and the company’s creditors will have the right to accelerate their claims or demand early performance of the company’s obligations as well as demand compensation for any damages. If involuntary liquidation of any of our subsidiaries were to occur, such liquidation could materially adversely affect our financial condition and results of operations.
We may need additional capital, and a failure by us to raise additional capital on terms favorable to us, or at all, could limit our ability to grow our business and develop or enhance our service offerings to respond to market demand or competitive challenges.
We believe that our current cash, cash flow from operations and revolving line of credit are sufficient to meet our anticipated cash needs for at least the next twelve months. We may, however, require additional cash resources due to changed business conditions or other future developments, including any investments or acquisitions we may decide to pursue. If these resources are insufficient to satisfy our cash requirements, we may seek to sell additional equity or debt securities or obtain another credit facility, and we cannot be certain that such additional financing would be available on terms acceptable to us or at all. The sale of additional equity securities could result in dilution to our stockholders, and additional indebtedness would result in increased debt service obligations and could impose operating and financial covenants that would restrict our operations.

Our stock price is volatile.
Our common stock has at times experienced substantial price volatility as a result of variations between our actual and anticipated financial results, announcements by our competitors and us, projections or speculation about our business or that of our competitors by the media or investment analysts or uncertainty about current global economic conditions. The stock market, as a whole, also has experienced price and volume fluctuations that have affected the market price of many technology companies in ways that may have been unrelated to these companies’ operating performance. Furthermore, we believe our stock price should reflect future growth and profitability expectations and, if we fail to meet these expectations, our stock price may significantly decline.
Our liability-classified restricted stock units, which are subject to mark-to-market accounting, and the calculation of weighted-average diluted shares outstanding in accordance with the treasury method are both affected by our stock price. Any fluctuations in the price of our stock will affect our future operating results.
Item 1B. Unresolved Staff Comments
None.
Item 2. Properties
Our corporate headquarters are located in Newtown, Pennsylvania, where wePennsylvania. We own and lease approximately 19,487 square feet of office space under a lease ending in May 2029.
Our principal property consists of office buildings used as delivery centers, client management locations and space for administrative and support functions, which are leased under long-term leases with varying expiration dates into 2031.functions. These facilities are located in numerous cities worldwide and are strategically positioned in relation to our talent sources and key in-market locations to align with the needs of our operations. We own one office building in Minsk, Belarus with a capacity of 233,329 square feet, which is used by both administrative support and IT personnel.
During 2018, we continued expanding our locations as demanded by our business, including space gained through strategic business acquisitions. We believe that our existing properties are adequate to meet the current requirements of our business, and that suitable additional or substitute space will be available, if necessary. Our facilities are used interchangeably among all of our segments. See Note 1516 “Segment Information” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding the geographical locationlocations and values of our long-lived assets. See Note 6 “Property and Equipment, Net” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding our long-lived assets and buildings we own. See Note 8 “Leases” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding our leased assets.
Item 3. Legal Proceedings
From time to time, we are involved in litigation and claims arising out of our business and operations in the normal course of business. We are not currently a party to any material legal proceeding, nor are we aware of any material legal or governmental proceedings pending or contemplated to be brought against us.
Item 4. Mine Safety Disclosures
None.

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PART II
Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Market Information
Our common stock is traded on the New York Stock Exchange (“NYSE”) under the symbol “EPAM.”
The price range per share of common stock presented below represents the highest and lowest intraday sales prices for the Company’s common stock on the NYSE during each quarter of the two most recent years.
2018    
Quarter Ended High  Low 
December 31 $139.31
 $104.77
September 30 $144.19
 $115.95
June 30 $131.75
 $110.20
March 31 $125.88
 $102.03
2017    
Quarter Ended High  Low 
December 31 $109.07
 $86.53
September 30 $88.18
 $77.96
June 30 $86.98
 $73.49
March 31 $76.16
 $63.32
As of February 12, 2019,11, 2022, we had approximately 1613 stockholders of record of our common stock. The number of record holders does not include holders of shares in “street name” or persons, partnerships, associations, corporations or other entities identified in security position listings maintained by depositories.
Dividend Policy
We have not declared or paid any cash dividends on our common stock and currently do not anticipate paying any cash dividends in the foreseeable future. Instead, we intend to retain all available funds and any future earnings for use in the operation and expansion of our business. In addition, our revolving credit facility restricts our ability to make or pay dividends (other than certain intercompany dividends) unless no potential or actual event of default has occurred or would be triggered thereby. Any future determination relating to our dividend policy will be made at the discretion of our Board of Directors and will depend on our future earnings, capital requirements, financial condition, future prospects, applicable Delaware law, which provides that dividends are only payable out of surplus or current net profits, and other factors that our Board of Directors deems relevant. In addition, our revolving credit facility restricts our ability to make or pay dividends (other than certain intercompany dividends) unless no potential or actual event of default has occurred or would be triggered thereby.
Equity Compensation Plan Information
See “Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters” in Part III of this Annual Report on Form 10-K for our equity compensation plan information.


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Performance Graph
The following graph compares the cumulative total stockholder return on our common stock with the cumulative total return on the S&P 500 Index and a Peer Group Index (capitalization weighted) and the S&P 500 Index for the period beginning December 31, 20132016 and ending December 31, 2018.2021. The stock performance shown on the graph below is not indicative of future price performance. The following performance graph and related information shall not be deemed “soliciting material” or to be “filed” with the SEC, nor shall information be incorporated by reference into any future filing under the Securities Act of 1933 or Securities Exchange Act of 1934, each as amended, except to the extent that we specifically incorporate it by reference into such filing.
COMPARISON OF CUMULATIVE TOTAL RETURN (1)(2)
Among EPAM, a Peer Group (3) and the S&P 500 Index and a Peer Group (3)
performncegraph2018.jpg
epam-20211231_g2.gif
Company/Index Base period
12/31/2013
 12/31/2014 12/31/2015 12/31/2016 12/31/2017 12/31/2018
EPAM Systems, Inc.  $100.00
 $136.66
 $225.01
 $184.06
 $307.47
 $332.03
Peer Group Index $100.00
 $107.81
 $133.69
 $125.16
 $169.91
 $146.00
S&P 500 Index $100.00
 $113.69
 $115.26
 $129.04
 $157.21
 $150.33
Company/IndexBase period
12/31/2016
12/31/201712/31/201812/31/201912/31/202012/31/2021
EPAM Systems, Inc. $100.00 $167.05 $180.39 $329.90 $557.22 $1,039.42 
Peer Group Index$100.00 $153.51 $110.09 $107.82 $159.25 $204.45 
S&P 500 Index$100.00 $121.83 $116.49 $153.17 $181.35 $233.41 
(1)
(1)Graph assumes $100 invested on December 31, 2013,2016 in our common stock, a Peer Group and the S&P 500 Index, and the Peer Group.Index.
(2)Cumulative total return assumes reinvestment of dividends.
(3)The Peer Group includes Cognizant Technology Solutions Corp. (NASDAQ:CTSH), ExlService Holdings, Inc (NASDAQ:EXLS)DXC Technology Company (NYSE:DXC), Endava plc (NYSE:DAVA), Globant (NASDAQ:S.A. (NYSE:GLOB), Infosys LtdLtd. (NYSE:INFY), Luxoft Holding, IncPerficient, Inc. (NASDAQ:LXFT), Virtusa Corporation (NASDAQ:VRTU)PRFT), and Wipro Limited (NYSE:WIT).

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Unregistered Sales of Equity Securities
There were no unregistered sales of equity securities by the Company during the year ended December 31, 2018.2021.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers
Under our equity-based compensation plans, on the date of vesting of stock-based compensation awards to our personnel, the Company withholds a number of shares of vested stock as payment to satisfy tax withholding obligations arising on that date.the date of vesting of stock-based compensation awards. The number of shares of stock to be withheld is calculated based on the closing price of the Company’s common stock on the vesting date. The following table provides information about shares withheld by the Company during the year ended December 31, 2018:2021:
PeriodTotal Number of
Shares Purchased
Average Price
Paid Per Share
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 
Maximum Dollar Amount of Shares That May Yet Be Purchased Under the Program
January 1, 2021 to January 31, 2021937 $356.59 — — 
February 1, 2021 to February 28, 20211,058 $372.82 — — 
March 1, 2021 to March 31, 202181,919 $380.95 — — 
April 1, 2021 to April 30, 20215,073 $446.44 — — 
May 1, 2021 to May 31, 2021313 $473.77 — — 
June 1, 2021 to June 30, 2021424 $513.56 — — 
July 1, 2021 to July 31, 20211,024 $521.73 — — 
August 1, 2021 to August 31, 20211,072 $623.38 — — 
September 1, 2021 to September 30, 2021285 $580.48 — — 
October 1, 2021 to October 31, 2021102 $673.24 — — 
November 1, 2021 to November 30, 202110,387 $673.39 — — 
December 1, 2021 to December 31, 20213,139 $660.25 — — 
Total105,733 $426.26   
Period Total Number of
Shares Purchased
 Average Price
Paid Per Share
 Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs  
Maximum Dollar Amount of Shares That May Yet Be Purchased Under the Program
March 1, 2018 to March 31, 2018 61,950
 $112.78
 
 
April 1, 2018 to April 30, 2018 1,760
 $114.03
 
 
May 1, 2018 to May 31, 2018 50
 $129.72
 
 
June 1, 2018 to June 30, 2018 132
 $124.50
 
 
July 1, 2018 to July 30, 2018 2,579
 $129.82
 
 
August 1, 2018 to August 31, 2018 104
 $140.54
 
 
October 1, 2018 to October 30, 2018 439
 $122.17
 
 
November 1, 2018 to November 30, 2018 421
 $125.32
 
 
December 1, 2018 to December 30, 2018 3,899
 $119.25
 
 
Total 71,334
 $113.99
 
 

Item 6. Selected Financial Data
The following table represents selected financial data for each of the last five years. Our historical results are not necessarily indicative of the results to be expected for any future period. The following selected financial data should be read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes included elsewhere in this annual report.Reserved
 
Year Ended December 31
 2018 2017 2016 2015 2014
 
(in thousands, except per share data)
Consolidated Statements of Income Data:         
Revenues$1,842,912
 $1,450,448
 $1,160,132
 $914,128
 $730,027
Operating expenses:         
Cost of revenues (exclusive of depreciation and amortization)1,186,921
 921,352
 737,186
 566,913
 456,530
Selling, general and administrative expenses373,587
 327,588
 265,863
 223,853
 167,590
Depreciation and amortization expense36,640
 28,562
 23,387
 17,395
 17,483
Goodwill impairment loss
 
 
 
 2,241
Income from operations245,764
 172,946
 133,696
 105,967
 86,183
Interest and other income, net3,522
 4,601
 4,848
 4,731
 2,845
Foreign exchange gain/(loss)487
 (3,242) (12,078) (4,628) (2,075)
Income before provision for income taxes249,773
 174,305
 126,466
 106,070
 86,953
Provision for income taxes9,517
 101,545
 27,200
 21,614
 17,312
Net income$240,256
 $72,760
 $99,266
 $84,456
 $69,641
Net income per share of common stock:   
  
  
  
Basic$4.48
 $1.40
 $1.97
 $1.73
 $1.48
Diluted$4.24
 $1.32
 $1.87
 $1.62
 $1.40
Shares used in calculation of net income per share:   
  
  
  
Basic53,623
 52,077
 50,309
 48,721
 47,189
Diluted56,673
 54,984
 53,215
 51,986
 49,734
  
As of December 31
  2018 2017 2016 2015 2014
  
(in thousands)
Consolidated Balance Sheets Data:          
Cash and cash equivalents $770,560
 $582,585
 $362,025
 $199,449
 $220,534
Accounts receivable, net $297,685
 $265,639
 $199,982
 $174,617
 $124,483
Unbilled revenues $104,652
 $86,500
 $63,325
 $95,808
 $55,851
Property and equipment, net $102,646
 $86,419
 $73,616
 $60,499
 $55,134
Total assets $1,611,802
 $1,250,256
 $925,811
 $778,536
 $594,026
Long-term debt $25,031
 $25,033
 $25,048
 $35,000
 $
Total liabilities $349,206
 $275,309
 $144,399
 $165,313
 $129,976
Total stockholders’ equity $1,262,596
 $974,947
 $781,412
 $613,223
 $464,050

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
You should read the following discussion and analysis of our financial condition and results of operations together with our audited consolidated financial statements and the related notes included elsewhere in this annual report. In addition to historical information, this discussion contains forward-looking statements that involve risks, uncertainties and assumptions that could cause actual results to differ materially from management’s expectations. Factors that could cause such differences are discussed in the sections entitled “Special Note Regarding Forward-Looking“Forward-Looking Statements” and “Item“Part I. Item 1A. Risk Factors.” We assume no obligation to update any of these forward-looking statements.
Executive Summary
We are a leading global provider of digital platform engineering and software development services offering specialized technological solutions to many of the world’s leading organizations.
Our customers depend on us to solve their complex technical challenges and rely on our expertise in core engineering, advanced technology, digital design and intelligent enterprise development. We continuously explore opportunities in new industries to expand our core industry client base in software and technology, financial services, business information and media, travel and consumer, retail and distribution and life sciences and healthcare. Our teams of developers, architects, consultants, strategists, engineers, designers, and product experts have the capabilities and skill sets to deliver business results.
Our global delivery model and centralized support functions, combined with the benefits of scale from the shared use of fixed-cost resources, enhance our productivity levels and enable us to better manage the efficiency of our global operations. As a result, we have created a delivery base whereby our applications, tools, methodologies and infrastructure allow us to seamlessly deliver services and solutions from our delivery centers to global customers across all geographies, further strengthening our relationships with them.
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Through increased specialization in focused verticals and a continued emphasis on strategic partnerships, we are leveraging our roots in software engineering to grow as a recognized brand in software development and end-to-end digital transformation services for our customers. In 2021, we have become a member of the S&P 500 and a Forbes Global 2000 company.

Business Update Regarding Military Action in Ukraine
On February 24, 2022, Russian forces launched significant military action against Ukraine, and sustained conflict and disruption in the region is likely. The impact to Ukraine as well as actions taken by other countries, including new and stricter sanctions by Canada, the United Kingdom, the European Union, the U.S. and other companies and organizations against officials, individuals, regions, and industries in Russia, Ukraine, and Belarus, and each country’s potential response to such sanctions, tensions, and military actions could have a material adverse effect on our operations. Any such material adverse effect from the conflict and enhanced sanctions activity may disrupt our delivery of services, cause us to shift all or portions of our work occurring in the region to other countries, and may restrict our ability to engage in certain projects in the region or involving certain customers in the region.
The information contained in this section is accurate as of the date hereof, but may become outdated due to changing circumstances beyond our present awareness or control.
Our Response to the Military Action in Ukraine
As noted in “Item 1. Business – Global Delivery Model” in Part I of this Annual Report on Form 10-K, Ukraine is our largest delivery location by number of personnel and Belarus and Russia are our second and third largest delivery locations by number of personnel, respectively. We are actively monitoring the security of our personnel and the stability of our infrastructure, including communications and internet availability. We are also executing our business continuity plan and adapting to developments as they occur to protect the safety of our people and handle potential impacts to our delivery infrastructure, including reallocating work to other geographies within our global footprint. We are actively working with our personnel and with our customers to meet their needs and to mitigate delivery challenges.
Moving Forward

We have no way to predict the progress or outcome of the situation, as the conflict and government reactions are rapidly developing and beyond our control. Prolonged unrest, military activities, or broad-based sanctions, should they be implemented, could have a material adverse effect on our operations and business outlook. We have accelerated hiring in locations outside of the region as part of our business continuity planning and in order to support client demand. In addition, we have implemented plans to move some of our existing personnel to other countries in order to keep them safe and mitigate impacts on our delivery of services to our customers.
For additional information on the various risks posed by the military action in Ukraine and the impact in the region, please read “Part I. Item 1A. Risk Factors” included in this Annual Report on Form 10-K.
Business Update Regarding COVID-19
The COVID-19 pandemic continued its substantial and varying influence on global public health, economies, business operations, and financial markets. Numerous evolving factors prevent us from accurately predicting the extent to which the COVID-19 pandemic will continue to directly and indirectly impact our employees, customers, communities, business, results of operations and financial condition.
To the extent that the remainder of this Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) refers to a financial or performance metric that has been affected by a trend or activity, that reference is in addition to any impact of the COVID-19 pandemic disclosed in and supplemented by this section. The information contained in this section is accurate as of the date hereof, but may become outdated due to changing circumstances beyond our present awareness or control.

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Our COVID-19 Pandemic Response
Since the beginning of the COVID-19 pandemic, the vast majority of our employees have been able to productively and securely work from a remote location, so we do not expect that COVID-19 will have a material adverse effect on our ability to operate our business or productively deliver services to our customers, nor on our financial reporting systems, internal control over financial reporting, or disclosure controls and procedures. Extended or expanded restrictions on travel and immigration from other countries may continue to impact our operations. However, we do not believe that the current travel and immigration restrictions will have a material adverse effect on our business or financial condition.
Our adaptive global delivery model enables us to deliver our services and solutions to our customers from remote locations, so we continue to effectively provide our customers with the products, services, and solutions they seek. Economic conditions resulting from the pandemic, including supply chain disruptions, persistent inflation for both goods and services, and worker shortages could negatively affect our operations and the operations of our customers and their customers and could adversely impact our revenues and our results of operations.
Moving Forward
We expect continued uncertainty regarding the impacts the pandemic will have on our business, financial condition, and results of operations. We actively monitor our business and the needs of our employees, customers and communities to determine the appropriate actions to take to ensure the safety of our employees and our ongoing operations. Our business continuity plans and adherence to the recommendations of public health authorities are intended to protect the health and safety of approximately 58,000 EPAM professionals and the customers they serve. Economic and demand uncertainty in the current environment may impact our future results. We continue to monitor the demand for our services and our ability to deliver them, while continuing to assess how the economic effects of COVID-19 may impact our human capital allocation, revenues, operating expenses and profitability.
For additional information on the various risks posed by the COVID-19 pandemic, please read “Part II. Item 7A. Quantitative and Qualitative Disclosures About Market Risk” and “Part I. Item 1A. Risk Factors” included in this Annual Report on Form 10-K.


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Overview of 20182021 and Financial Highlights
The following table presents a summary of our results of operations for the years ended December 31, 2018, 20172021, 2020 and 2016:2019:
Year Ended December 31, Year Ended December 31,
2018 2017 2016 202120202019
  % of revenues   % of revenues   % of revenues% of revenues% of revenues% of revenues
(in millions, except percentages and per share data)  (in millions, except percentages and per share data) 
Revenues$1,842.9 100.0% $1,450.4 100.0% $1,160.1
 100.0%Revenues$3,758.1 100.0 %$2,659.5 100.0 %$2,293.8 100.0 %
Income from operations$245.8
 13.3% $172.9
 11.9% $133.7
 11.5%Income from operations$542.3 14.4 %$379.3 14.3 %$302.9 13.2 %
Net income$240.3
 13.0% $72.8
 5.0% $99.3
 8.6%Net income$481.7 12.8 %$327.2 12.3 %$261.1 11.4 %
           
Effective tax rate3.8%   58.3%   21.5%  Effective tax rate9.7 %13.6 %12.8 %
Diluted earnings per share$4.24
   $1.32
   $1.87
  Diluted earnings per share$8.15 $5.60 $4.53 
The key highlights of our consolidated results for 20182021 were as follows:
We recorded revenues of $1.8$3.8 billion, or a 27.1%41.3% increase from $1.5$2.7 billion in the previous year, positively impacted by $2.0$38.8 million or 0.2%1.4% due to changes in certain foreign currency exchange rates as compared to the corresponding period in the previous year.
Income from operations grew 42.1%43.0% to $245.8 million from $172.9$542.3 million in 2017.2021 from $379.3 million in 2020. Expressed as a percentage of revenues, income from operations was 13.3%14.4% compared to 11.9% last year. The increase14.3%. During the year ended December 31, 2021, income from operations as a percentage of revenues was primarily drivenpositively impacted by an improvement in selling, general and administrativereduced facility-related expenses as a percentage of revenues partially offsetand negatively impacted by an increase in costhigher levels of revenues as a percentage of revenues as compared to the same period last year.accrued variable compensation.
Our effective tax rate was 3.8%9.7% compared to 58.3% last13.6% in the previous year. The provision for income taxes for 2018 was favorably impacted primarily by the recognitionexcess tax benefits recorded upon vesting or exercise of $26.0 million of net deferred tax assets resulting from the implementation of changes to our tax structurestock-based awards in response to U.S. tax reform. In 2017, our effective tax rate had increased principally due to the provisional $74.6 million charge related to U.S. Tax Reform.2021 and 2020.
Net income increased 230.2%47.2% to $240.3$481.7 million compared to $72.8$327.2 million in 2017.2020. Expressed as a percentage of revenues, net income increased 8.0%0.5% compared to last year, which was largely driven by the improved effective tax rate as well as the improvement in income from operations asand a percentage of revenues.decrease in our effective tax rate.
Diluted earnings per share increased 221.2%45.5% to $4.24$8.15 for the year ended December 31, 20182021 from $1.32$5.60 in 2017.2020.
Cash provided by operations increased $99.4$27.9 million, or 51.5%5.1%, to $292.2$572.3 million during 20182021 as compared to last year. This increase was largely driven by the increase in net income as well as an increase in accrued variable compensation expense in 2021. The increase was partially offset by an increase in accounts receivable during 2021, largely attributable to the 41.3% growth in revenue in 2021 as compared to 2020.
The operating results in any period are not necessarily indicative of the results that may be expected for any future period.


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Critical Accounting Policies
We prepare our consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”), which require us to make judgments, estimates and assumptions that affect: (i) the reported amounts of assets and liabilities, (ii) the disclosure of contingent assets and liabilities at the end of each reporting period and (iii) the reported amounts of revenues and expenses during each reporting period. We evaluate these estimates and assumptions based on historical experience, knowledge and assessment of current business and other conditions, and expectations regarding the future based on available information and reasonable assumptions, which together form a basis for making judgments about matters not readily apparent from other sources. Since the use of estimates is an integral component of the financial reporting process, actual results could differ from those estimates. Some of our accounting policies require higher degrees of judgment than others in their application. When reviewing our audited consolidated financial statements, you should consider (i) our selection of critical accounting policies, (ii) the judgment and other uncertainties affecting the application of such policies and (iii) the sensitivity of reported results to changes in conditions and assumptions. We consider the policies discussed below to be critical to an understanding of our consolidated financial statements as their application places significant demands on the judgment of our management.
An accounting policy is considered critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, and if different estimates that reasonably could have been used, or changes in the accounting estimates that are reasonably likely to occur periodically, could materially impact the consolidated financial statements. We believe that the following critical accounting policies are the most sensitive and require more significant estimates and assumptions used in the preparation of our consolidated financial statements. You should read the following descriptions of critical accounting policies, judgments and estimates in conjunction with our audited consolidated financial statements and other disclosures included elsewhere in this annual report.
Revenues — As discussed Additional information on our policies is in Note 1 “Business and Summary of Significant Accounting Policies” in the notes to our consolidated financial statements in this Annual Report on Form 10-K, we adopted the new accounting standard ASU 2014-09, “Revenue from Contracts with Customers” (Topic 606) as amended using the modified retrospective method. This resulted in different revenue recognition accounting policies applied to the years presented in our consolidated financial statements.10-K.
For the year ended December 31, 2018
RevenuesWe recognize revenues when control of goods or services is passed to a customer in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Such control may be transferred over time or at a point in time depending on satisfaction of obligations stipulated by the contract. Consideration expected to be received may consist of both fixed and variable components and is allocated to each separately identifiable performance obligation based on the performance obligation’s relative standalone selling price. Variable consideration usually takes the form of volume-based discounts, service level credits, price concessions or incentives. Determining the estimated amount of such variable consideration involves assumptions and judgment that can have an impact on the amount of revenues reported.
We derive revenues from a variety of service arrangements, which have been evolving to provide more customized and integrated solutions to customers by combining software engineering with customer experience design, business consulting and technology innovation services. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements. We generate the majority of our revenues under time-and-material contracts, which are billed using hourly, daily or monthly rates to determine the amounts to be charged directly to the customer. We apply a practical expedient and revenues related to time-and-material contracts are recognized based on the right to invoice for services performed.
Fixed-price contracts include maintenance and support arrangements, which may exceed one year in duration. Maintenance and support arrangements generally relate to the provision of ongoing services and revenues for such contracts are recognized ratably over the expected service period. Fixed-price contracts also include application development arrangements, where progress towards satisfaction of the performance obligation is measured using input or output methods and input methods are used only when there is a direct correlation between hours incurred and the end product delivered. Assumptions, risks and uncertainties inherent in the estimates used to measure progress could affect the amount of revenues, receivables and deferred revenues at each reporting period.
Revenues from licenses which have significant stand-alone functionality are recognized at a point in time when control of the license is transferred to the customer. Revenues from licenses which do not have stand-alone functionality are recognized over time.

If there is an uncertainty about the receipt of payment for the services, revenue recognition is deferred until the uncertainty is sufficiently resolved. We apply a practical expedient and do not assess the existence of a significant financing component if the period between transfer of the service to a customer and when the customer pays for that service is one year or less.
We report gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidated statements of incomeincome.

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Business Combinations — We account for business combinations using the acquisition method which requires us to estimate the fair value of identifiable assets acquired and comprehensive income.
Forliabilities assumed, including any contingent consideration, to properly allocate purchase price to the years ended December 31, 2017individual assets acquired and 2016
We recognized revenue whenliabilities assumed. The allocation of the following criteria were met: (1) persuasive evidencepurchase price utilizes significant estimates in determining the fair values of an arrangement existed; (2) delivery had occurred; (3) the sales price was fixed or determinable;identifiable assets acquired and (4) collectability was reasonably assured. Determining whetherliabilities assumed, especially with respect to intangible assets. The significant estimates and when some of these criteria had been satisfied often involved assumptions and judgments that could have had a significant impact onused include the timing and amount of revenues reported.
We derived our revenues from a variety of service offerings, which represent specific competencies of our IT professionals. Contracts for these services had different terms and conditions based on the scope, deliverables, and complexity of the engagement, which required management to make judgments and estimates in determining appropriate revenue recognition. Fees for these contracts may have been in the form of time-and-materials or fixed-price arrangements. If there was uncertainty about the project completion or receipt of payment for the services, revenue was deferred until the uncertainty was sufficiently resolved. At the time revenue was recognized, we provided for any contractual deductions and reduced revenue accordingly. The Company reported gross reimbursable “out-of-pocket” expenses incurred as bothforecasted revenues and cost of revenuescash flows, anticipated growth rates, customer attrition rates, the discount rate reflecting the risk inherent in the consolidated statements of income and comprehensive income.
We deferred amounts billed to our customers for revenues not yet earned. Such amounts were anticipated to be recorded as revenues when services were performed in subsequent periods. Unbilled revenues was recorded when services had been provided but billed subsequent to the period end in accordance with the contract terms.
The majority of our revenues (90.3% of revenues in 2017 and 88.2% in 2016) were generated under time-and-material contracts whereby revenues were recognized as services were performed with the corresponding cost of providing those services reflected as cost of revenues. The majority of such revenues were billed using hourly, daily or monthly rates as actual time was incurred on the project. Revenues from fixed-price contracts (8.3% of revenues in 2017 and 10.4% in 2016) included fixed-price maintenance and support arrangements, which may have exceeded one year in duration and revenues from maintenance and support arrangements were generally recognized ratably over the expected service period. Fixed-price contracts also included application development arrangements and revenues from these arrangements were primarily determined using the proportional performance method. In cases where final acceptance of the product, system, or solution was specified by the customer,future cash flows, and the acceptance criteria were not objectively determinable to have been met as the services were provided, revenues were deferred until all acceptance criteria had been met. In the absence of a sufficient basis to measure progress towards completion, revenue was recognized upon receipt of final acceptance from the customer. Assumptions, risks and uncertainties inherent in the estimates used in the application of the proportional performance method of accounting could have affected the amount of revenues, receivables and deferred revenues at each reporting period.
Business Combinations — We accountuseful lives for our business combinations using the acquisition accounting method, which requires us to determine the fair value of net assets acquired and the related goodwill and other intangible assets in accordance with the FASB ASC Topic 805, “Business Combinations.” We identify and attribute fair values and estimated lives to the intangible assets acquired and allocate the total cost of an acquisition to the underlying net assets based on their respective estimated fair values. Determining the fair value of assets acquired and liabilities assumed requires management’s judgment and involves the use of significant estimates, including projections of future cash inflows and outflows, discount rates, asset lives and market multiples.finite-lived assets. There are different valuation models for each component, the selection of which requires considerable judgment. These determinations will affect the amount of amortization expense recognized in future periods. We base our fair value estimates on assumptions we believe are reasonable, but recognize that the assumptions are inherently uncertain. The acquired assets typically include customer relationships, software, trade names, non-competition agreements, and assembled workforce and as a result, a substantial portion of the purchase price is typically allocated to goodwill and other intangible assets.
We determine the fair value of the contingent consideration liabilities using Monte Carlo simulations (which involve a simulation of future revenues and earnings during the earn-out period using management's best estimates) or probability-weighted expected return methods. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earn-out criteria would result in a change in the fair value of contingent consideration. Such changes, if any, are recorded within Interest and other income, net in the Company’s consolidated statements of income.
If the initial accounting for the business combination has not been completed by the end of the reporting period in which the business combination occurs, provisional amounts are reported to present information about facts and circumstances that existed as of the acquisition date. Once the measurement period ends, which in no case extends beyond one year from the acquisition date, revisions ofto the accounting for the business combination are recorded in earnings.

Goodwill and Other Intangible Assets — We assess goodwill for impairment on an annual basis as of October 31, and more frequently if events or changes in circumstances indicate that the fair value of a reporting unit has been reduced below its carrying value. When conducting our annual goodwill impairment assessment, we use a two-step process. The first step is to perform an optional qualitative evaluation as to whether it is more likely than not that the fair value of a reporting unit is less than its carrying value using an assessment of relevant events and circumstances. In performing this assessment, we are required to make assumptions and judgments including, but not limited to, an evaluation of macroeconomic conditions as they relate to our business, industry and market trends, as well as the overall future financial performance of a reporting unit and future opportunities in the markets in which it operates. If we determine that it is not more likely than not that the fair value of our reporting unit is less than its carrying value, we are not required to perform any additional tests in assessing goodwill for impairment. However, if we conclude otherwise or elect not to perform the qualitative assessment, we perform a second step consisting of a quantitative assessment of goodwill impairment. This quantitative assessment requires us to estimate impairment by comparing the fair value of a reporting unit with its carrying amount. An impairment charge would be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized would not exceed the total amount of goodwill allocated to that reporting unit.
Historically, a significant portion of the purchase consideration related to our acquisitions was allocated to customer relationships. In valuing customer relationships, we typically utilize the multi-period excess earnings method, a form of the income approach. The principle behind this method is that the value of the intangible asset is equal to the present value of the after-tax cash flows attributable to the intangible asset only. We amortize our intangible assets that have finite lives on a straight-line basis or, if reliably determinable, the pattern in which the economic benefit of the asset is expected to be consumed utilizing expected discounted future cash flows. Amortization is recorded over the estimated useful lives that predominantly range from five to ten years. We do not have any intangible assets with indefinite useful lives.
We review our intangible assets subject to amortization to determine if any adverse conditions exist or a change in circumstances has occurred that would indicate impairment or a change in the remaining useful life. If the carrying value of an asset exceeds its undiscounted cash flows, we will write down the carrying value of the intangible asset to its fair value in the period identified. In assessing fair value, we must make assumptions regarding estimated future cash flows and discount rates. If these estimates or related assumptions change in the future, we may be required to record impairment charges. If the estimate of an intangible asset’s remaining useful life is changed, we will amortize the remaining carrying value of the intangible asset prospectively over the revised remaining useful life.
Accounting for Income Taxes — We estimate our income taxes based on the various jurisdictions where we conduct business and we use estimates in determining our provision for income taxes. We estimate separately our deferred tax assets, related valuation allowances, current tax liabilities and deferred tax liabilities. The calculation of our tax liabilities involves dealing with uncertainties in the application of complex tax rules and the potential for future adjustment of our uncertain tax positions by the U.S. Internal Revenue Service or other taxing jurisdictions.
The provision for income taxes includes federal, state, local and foreign taxes. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be reversed. Changes to enacted tax rates would result in either increases or decreases in the provision for income taxes in the period of changes.
The realizability of deferred tax assets is primarily dependent on future earnings. We evaluate the realizability of deferred tax assets and recognize a valuation allowance when it is more likely than not that all, or a portion of, deferred tax assets will not be realized. A reduction in estimated forecasted results may require that we record valuation allowances against deferred tax assets. Once a valuation allowance has been established, it will be maintained until there is sufficient positive evidence to conclude that it is more likely than not that the deferred tax assets will be realized. A pattern of sustained profitability will generally be considered as sufficient positive evidence to reverse a valuation allowance. If the allowance is reversed in a future period, the income tax provision will be correspondingly reduced. Accordingly, the increase and decrease of valuation allowances could have a significant negative or positive impact on future earnings.
On December 22, 2017, the United States enacted the U.S. Tax Act, which subjects a U.S. shareholder to taxes on Global Intangible Low-Taxed Income (“GILTI”) earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, “Accounting for Global Intangible Low-Taxed Income”, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to GILTI in the year the tax is incurred. During the year ended December 31, 2018, we elected to provide for the tax expense related to GILTI in the year the tax is incurred. This election did not have a material impact on the financial statements for the year ended December 31, 2018.

Stock-Based Compensation — We recognize the cost of equity-settled stock-based incentive awards based on the fair value of the award at the date of grant, net of estimated forfeitures. The cost is expensed evenly over the service period. The service period is the period over which the employee performs the related services, which is normally the same as the vesting period. Quarterly, the forfeiture assumption is adjusted and such adjustment may affect the timing of expense of the total amount recognized over the vesting period.
Adjusting stock-based compensation expense for estimated forfeitures requires judgment. If we change our assumptions, stock-based compensation expense may differ significantly from what we have recorded in the past. Stock-based compensation expense in a period could be impacted, favorably or unfavorably, by differences between forfeiture estimates and actual forfeitures. If there are any modifications or cancellations of the underlying unvested securities, we may be required to accelerate, increase or cancel any remaining unvested stock-based compensation expense.
Equity-based awards that do not meet the criteria for equity classification are recorded as liabilities and adjusted to fair value based on the closing price of our stock at the end of each reporting period. Future stock-based compensation expense related to our liability-classified awards may increase or decrease as a result of changes in the market price for our stock, adding to the volatility in our operating results.
Our adoption of ASU 2016-09, “Compensation — Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” effective January 1, 2017, increased income tax expense volatility. Our future operating results will be impacted by fluctuations in the stock price on the dates the awards vest or options are exercised and the magnitude of transactions occurring in each reporting period, among other factors.
Effective January 1, 2018, we changed the methodology for estimating the volatility input used in the Black-Scholes option valuation model. Prior to January 1, 2018, we estimated the volatility of our common stock by using the historical volatility of peer public companies including the Company’s historical volatility. In the first quarter of 2018, we began exclusively using our own historical volatility, as we believe this is a more accurate estimate of future volatility of the price of EPAM’s common stock. We did not change the methodology for estimating any other Black-Scholes option valuation model assumptions as disclosed in Note 12 “Stock-Based Compensation” in the notes to our consolidated financial statements in this Annual Report on Form 10-K.
Recent Accounting Pronouncements
See Note 1 “Business and Summary of Significant Accounting Policies” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding recent accounting pronouncements.


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Results of Operations
The following table sets forth a summary of our consolidated results of operations for the periods indicated. This information should be read together with our consolidated financial statements and related notes included elsewhere in this annual report. The operating results in any period are not necessarily indicative of the results that may be expected for any future period.
Year Ended December 31,
Year Ended December 31, 202120202019
2018 2017 2016% of revenues% of revenues% of revenues
(in thousands, except percentages and per share data) (in thousands, except percentages and per share data)
Revenues$1,842,912
 100.0% $1,450,448
 100.0 % $1,160,132
 100.0 %Revenues$3,758,144 100.0 %$2,659,478 100.0 %$2,293,798 100.0 %
Operating expenses:         
  Operating expenses: 
Cost of revenues (exclusive of depreciation and amortization)(1)
1,186,921
 64.4
 921,352
 63.5
 737,186
 63.6
Cost of revenues (exclusive of depreciation and amortization)(1)
2,483,697 66.1 1,732,522 65.1 1,488,198 64.9 
Selling, general and administrative expenses(2)
373,587
 20.3
 327,588
 22.6
 265,863
 22.9
Selling, general and administrative expenses(2)
648,736 17.3 484,758 18.2 457,433 19.9 
Depreciation and amortization expense36,640
 2.0
 28,562
 2.0
 23,387
 2.0
Depreciation and amortization expense83,395 2.2 62,874 2.4 45,317 2.0 
Income from operations245,764
 13.3
 172,946
 11.9
 133,696
 11.5
Income from operations542,316 14.4 379,324 14.3 302,850 13.2 
Interest and other income, net3,522
 0.3
 4,601
 0.3
 4,848
 0.4
Foreign exchange gain/(loss)487
 
 (3,242) (0.2) (12,078) (1.0)
Interest and other (loss)/income, netInterest and other (loss)/income, net(1,727)— 3,822 0.1 8,725 0.4 
Foreign exchange lossForeign exchange loss(7,197)(0.2)(4,667)(0.2)(12,049)(0.5)
Income before provision for income taxes249,773
 13.6
 174,305
 12.0
 126,466
 10.9
Income before provision for income taxes533,392 14.2 378,479 14.2 299,526 13.1 
Provision for income taxes9,517
 0.6
 101,545
 7.0
 27,200
 2.3
Provision for income taxes51,740 1.4 51,319 1.9 38,469 1.7 
Net income$240,256
 13.0% $72,760
 5.0 % $99,266
 8.6 %Net income$481,652 12.8 %$327,160 12.3 %$261,057 11.4 %
           
Effective tax rate3.8%   58.3%   21.5%  Effective tax rate9.7 %13.6 %12.8 %
Diluted earnings per share$4.24
   $1.32
   $1.87
  Diluted earnings per share$8.15 $5.60 $4.53 


(1) Includes $51,580, $32,785 and $37,580 of stock-based compensation expense for the years ended December 31, 2021, 2020 and 2019, respectively.
(1)Included $27,245, $20,868 and $16,619 of stock-based compensation expense for the years ended December 31, 2018, 2017 and 2016, respectively.
(2)Included $31,943, $31,539 and $32,625 of stock-based compensation expense for the years ended December 31, 2018, 2017 and 2016, respectively.
(2) Includes $60,075, $42,453 and $34,456 of stock-based compensation expense for the years ended December 31, 2021, 2020 and 2019, respectively.
Revenues
We continue to expand our presence inacross multiple geographies and verticals, both organically and through strategic acquisitions. During the year ended December 31, 2018,2021, our total revenues grew 27.1%41.3% over the previous year to $1.8$3.8 billion. This growth resulted from our ability to retain existing customers and increase the level of services we provide to them and our ability to produce revenues from new customer relationships. CustomerDuring the year ended December 31, 2021 we experienced a decrease in customer concentration continuedas compared to decreasethe previous year, with revenues from our top five, top ten and top twenty clients decliningcustomer groups decreasing as a percentage of total revenues for the year ended December 31, 2018 as compared to the previous year. Revenue hasrevenues. Revenues have been positively impacted from the acquisition of Continuum Innovation LLC and Think Limited,by our acquisitions in 2021, which contributed 1.8% and 0.1%, respectively4.3% to our revenue growth, and by the fluctuations in foreign currency thatcurrencies, which increased our revenue growth by 0.2%1.4% during the year ended December 31, 20182021 as compared to the previous year.
We discuss below the breakdown of our revenues by vertical, customer location, service arrangement type, and customer concentration.

Revenues by Vertical
OurWe assign our customers operate ininto one of our five main industry verticals as well as invertical markets or a numbergroup of verticals in whichvarious industries where we are increasing our presence, andwhich we label them as emerging verticals. Emerging Verticals include customers in other industries such as“Emerging Verticals”, including energy, utilities, manufacturing, auto,automotive, telecommunications and several others.

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The following table presents our revenues by vertical and each vertical’s revenues as a percentage of total revenues by vertical for the periods indicated:
 Year Ended December 31,
202120202019
(in thousands, except percentages)
Financial Services$848,370 22.6 %$555,235 20.9 %$500,872 21.8 %
Travel & Consumer741,128 19.7 458,789 17.2 439,358 19.2 
Business Information & Media666,941 17.7 560,680 21.1 420,923 18.4 
Software & Hi-Tech664,597 17.7 496,813 18.7 433,398 18.9 
Life Sciences & Healthcare391,309 10.4 296,313 11.1 248,452 10.8 
Emerging Verticals445,799 11.9 291,648 11.0 250,795 10.9 
Revenues$3,758,144 100.0 %$2,659,478 100.0 %$2,293,798 100.0 %
 Year Ended December 31,
 2018 2017 2016
 (in thousands, except percentages)
Financial Services$423,977
 23.0% $338,899
 23.4% $295,419
 25.5%
Travel & Consumer393,643
 21.4
 317,415
 21.9
 262,282
 22.6
Software & Hi-Tech350,815
 19.0
 287,633
 19.8
 239,316
 20.6
Business Information & Media324,033
 17.6
 256,267
 17.7
 176,325
 15.2
Life Sciences & Healthcare171,703
 9.3
 120,591
 8.3
 105,943
 9.1
Emerging Verticals178,741
 9.7
 129,643
 8.9
 80,847
 7.0
Revenues$1,842,912
 100.0% $1,450,448
 100.0% $1,160,132
 100.0%


Financial Services became our largest vertical during 2021, growing 52.8% as compared to 2020. Except for Business Information & Media, which grew at a rate of 19.0% in 2021 over the prior year, all of our verticals grew over 30% in 2021 over the prior year.
Revenues by Customer Location
Our revenues are sourced from multiple countries, which we assign into four geographic markets: North America, Europe, CISmarkets and identify as Americas, EMEA, CEE and APAC. We present and discuss our revenues by customer location based on the location of the specific customer site that we serve, irrespective of the location of the headquarters of the customer or the location of the delivery center where the work is performed. Revenues by customer location is different from revenues by reportable segment in our consolidated financial statements included elsewhere in this annual report. Segments are not based on the geographic location of the customers, but instead they are based on the location of the Company’s management responsible for a particular customer or market.
The following table sets forth revenues by customer location by amount and as a percentage of our revenues for the periods indicated:
 Year Ended December 31,
 2018 2017 2016
 (in thousands, except percentages)
North America$1,099,167
 59.6% $840,692
 58.0% $670,581
 57.8%
Europe612,472
 33.2
 511,319
 35.2
 417,813
 36.0
CIS (1)
81,703
 4.4
 68,390
 4.7
 46,115
 4.0
APAC (2)
49,570
 2.8
 30,047
 2.1
 25,623
 2.2
Revenues$1,842,912
 100.0% $1,450,448
 100.0% $1,160,132
 100.0%
 Year Ended December 31,
202120202019
(in thousands, except percentages)
Americas (1)
$2,226,830 59.3 %$1,595,136 60.0 %$1,390,015 60.6 %
EMEA (2)
1,259,717 33.4 879,842 33.1 746,866 32.6 
CEE (3)
168,038 4.5 114,702 4.3 100,471 4.4 
APAC (4)
103,559 2.8 69,798 2.6 56,446 2.4 
Revenues$3,758,144 100.0 %$2,659,478 100.0 %$2,293,798 100.0 %
(1)CIS includes revenues from customers in Belarus, Kazakhstan, Russia and Ukraine.
(2)APAC, which stands for Asia Pacific, includes revenues from customers in Southeast Asia and Australia.
(1)Americas includes revenues from customers in North, Central and South America.
2018 compared to 2017(2)EMEA includes revenues from customers in Western Europe and the Middle East.
(3)CEE includes revenues from customers in Russia, Belarus, Kazakhstan, Ukraine, and Georgia.
(4)APAC, or Asia Pacific, includes revenues from customers in East Asia, Southeast Asia and Australia.
During the year ended December 31, 2018,2021, revenues in the Americas, our largest geography, North America, were $1,099.2$2,226.8 million, growing $258.5$631.7 million, or 30.7%39.6%, from $840.7$1,595.1 million reported for the year ended December 31, 2017.2020. Revenues from this geography accounted for 59.6%59.3% of total revenues in 2018, an increase2021, a decrease from 58.0%60.0% in the prior year. The United States continued to be our largest customer location contributing revenues of $1,029.3$2,125.3 million in 20182021 compared to $783.6$1,523.7 million in 2017.2020.


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Revenues in our EuropeEMEA geography were $612.5$1,259.7 million, an increase of $101.2$379.9 million, or 19.8%43.2%, over $511.3$879.8 million in the previous year. Revenues in this geography accounted for 33.2%33.4% of consolidated revenues in 20182021 as compared to 35.2%33.1% in the previous year. The top three revenue contributing customer location countries in EuropeEMEA were the United Kingdom, Switzerland and Germanythe Netherlands generating revenues of $200.9$474.9 million, $144.4$271.2 million and $80.8$154.8 million in 2018,2021, respectively, compared to $189.0$331.2 million, $123.3$203.4 million and $60.2$114.7 million in 2017,2020, respectively. Revenues in the European geography were positively impacted by fluctuationsFluctuations in foreign currency exchange rates with the U.S. dollar, particularly the euro and the British pound, during 20182021 compared to the same period in the prior year.year positively impacted revenue growth in the EMEA geography by 3.3%.
During 2018,2021, revenues in the CISour CEE geography increased $13.3$53.3 million, or 19.5%46.5%, from the previous year. The increase in CISCEE revenues came predominantlyprimarily from customers in Russia, contributing $10.0$50.3 million of revenue growth in 20182021 compared to the previous year. The revenues in the CIS geography were negatively affected by currency fluctuations, primarily Russian rubles, decreasing year-over-year growth of reported revenues in this geography by 9.7% in 2018.
Revenues from customers in locations in theour APAC region comprised 2.8% of total revenues in 2018,2021, a level consistent with the prior year.
2017Discussion of revenues from 2020 as compared to 2016
During the year ended December 31, 2017, revenues2019 is included in “Part II. Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Results of Operations” of our largest geography, North America, were $840.7 million growing $170.1 million, or 25.4%, from $670.6 million reportedAnnual Report on Form 10-K for the year ended December 31, 2016. Revenues from this geography accounted for 58.0% of total revenues in 2017, a level consistent with the prior year.2020.
Within North America, we experienced strong growth across all verticals with the Business Information & Media vertical contributing 31.7% of total growth in the North America geography. In addition, our traditionally strong Software & Hi-Tech portfolio grew 19.6% year over year. We saw continued growth in Emerging Verticals with 44.2% growth in revenues with 29.7% of the growth coming from customers who have been with us less than one year.
Revenues in our Europe geography were $511.3 million, an increase of $93.5 million, or 22.4% over $417.8 million in the prior year. Revenues in this geography accounted for 35.2% of consolidated revenues in 2017 as compared to 36.0% in the prior year. Europe experienced strong growth in the Business Information & Media, Life Sciences & Healthcare, and Emerging Verticals, each of which grew over 55% during 2017. Over 70% of the growth in our Europe geography in 2017 came from customers who have been with us less than two years. Financial Services remained our largest vertical in this geography accounting for 41.1% of the Europe geography’s revenues in 2017 as compared to 47.7% in 2016.
Revenues in the CIS geography increased $22.3 million, or 48.3%, from last year. The increase in CIS revenues came predominantly from customers within the Financial Services and Emerging Verticals. Revenues in this geography benefited by $5.9 million from the appreciation of the Russian ruble relative to the U.S. dollar.
Revenues by Customer Concentration
We have long-standing relationships with many of our customers and we seek to grow revenues from our existing customers by continually expanding the scope and size of our engagements. Revenues derived from these customers may fluctuate as these accounts mature or upon beginning or completion of multi-year projects. While weWe believe there is a significant potential for future growth as we expand our capabilities and offerings within existing customers,customers. In addition, we continueremain committed to focus on diversification ofdiversifying our customer concentrationclient base and building up a portfolio of new accounts that we believe have significant revenue potential. We anticipate the contribution of these new accountsadding more customers to our total revenues to increase inclient mix through organic growth and strategic acquisitions, and over the mid- to long-term, and offset the potential slower growth rate of some of our largest customers as those accounts mature.

Wewe expect customerrevenue concentration from our top customers to continue to decrease over the long-term. decrease.
The following table presents revenues contributed by our customers by amount and as a percentage of our revenues for the periods indicated:
 Year Ended December 31,
 2018 2017 2016
 (in thousands, except percentages)
Top customerSee (1)
 See (1)
 See (1)
 See (1)
 $137,599
 11.9%
Top five customers$410,987
 22.3% $348,219
 24.0% $329,324
 28.4%
Top ten customers$582,539
 31.6% $491,742
 33.9% $445,814
 38.4%
Top twenty customers$782,771
 42.5% $648,786
 44.7% $563,057
 48.5%
Customers below top twenty$1,060,141
 57.5% $801,662
 55.3% $597,075
 51.5%
 Year Ended December 31,
202120202019
(in thousands, except percentages)
Top five customers$682,147 18.2 %$584,303 22.0 %$456,985 19.9 %
Top ten customers$966,486 25.7 %$822,824 30.9 %$666,584 29.1 %
Top twenty customers$1,394,546 37.1 %$1,124,552 42.3 %$933,178 40.7 %
Customers below top twenty$2,363,598 62.9 %$1,534,926 57.7 %$1,360,620 59.3 %
(1)No single customer comprises more than 10% of the Company’s revenues for the years ended December 31, 2018 and 2017.
The following table shows the number of customers from which we earnedgrouped by revenues recognized by the Company for each year presented:
 Year Ended December 31,
Revenues Greater Than or Equal To2018 2017 2016
$0.1 million562 460 431
$0.5 million375 316 266
$1 million256 232 182
$5 million81 63 45
$10 million36 26 19
$20 million14 10 7
 Year Ended December 31,
202120202019
Over $20 Million402822
$10 - $20 Million382727
$5 - $10 Million634342
$1 - $5 Million271225206
$0.5 - $1 Million133107105

Revenues by Service Offering
Effective January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) as amended. The adoption of this standard required various disaggregated levels of revenue to be disclosed as presented in Note 9 “Revenues” in the notes to our consolidated financial statements in this Annual Report on Form 10-K. The standard also required us to consider how management views the business and provide the appropriate disclosures that would be relevant and informative under those views.
Our service arrangements have been evolving to provide more customized and integrated solutions to our customers where we combine software engineering with customer experience design, business consulting and technology innovation services. We are continually expanding our service capabilities, moving beyond traditional services into business consulting, design and physical product development. As more
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Table of our projects involve multiple competencies and different types of specialized professionals working collaboratively, it has been increasingly difficult to classify our projects into the specific service offerings that we historically presented. Given the market demand for integrated customer solutions and our management’s view of the business, we changed our presentation of service offerings to better reflect our business model.Contents
Our professional services engagement models vary based on the type of services provided to a customer, the mix and locations of professionals involved and pricing type, which is either time-and-material or fixed-price. Historically, the majority of our professional services revenues have been generated under time-and-material contracts and we expect time-and-material arrangements to continue to comprise the majority of our revenues in the future.

The following table shows revenues by service offering as an amount and as a percentage of our revenues for the years indicated:
Year Ended December 31, Year Ended December 31,
2018 2017 2016202120202019
(in thousands, except percentages)(in thousands, except percentages)
Professional services1,837,148
 99.7% 1,429,781
 98.6% 1,144,470
 98.6%Professional services$3,739,143 99.5 %$2,643,016 99.4 %$2,285,303 99.7 %
Licensing4,097
 0.2
 3,529
 0.2
 3,141
 0.3
Licensing15,552 0.4 11,139 0.4 5,081 0.2 
Other1,667
 0.1
 1,147
 0.1
 860
 0.1
Other3,449 0.1 5,323 0.2 3,414 0.1 
Reimbursable expensesSee (1)
 See (1)
 15,991
 1.1
 11,661
 1.0
Revenues$1,842,912
 100.0% $1,450,448
 100.0% $1,160,132
 100.0%Revenues$3,758,144 100.0 %$2,659,478 100.0 %$2,293,798 100.0 %
(1)
Following the adoption of Topic 606 on January 1, 2018, the Company includes reimbursable expenses in total contract consideration and is included in Professional services revenues. See Note 1 “Business and Summary of Significant Accounting Policies.”
See Note 911 “Revenues” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for more information regarding our contract types and related revenue recognition policies.
Cost of Revenues (Exclusive of Depreciation and Amortization)
The principal components of our cost of revenues (exclusive of depreciation and amortization) are salaries, bonuses, fringe benefits, stock-based compensation, expense, project-related travel costs and fees for subcontractors who are assigned to customer projects. Salaries and other compensation expenses of our revenue generatingdelivery professionals are reported as cost of revenues regardless of whether the employees are actually performing customer services during a given period. Our employees are a critical asset, necessary for our continued success and therefore we expect to continue hiring talented employees and providing them with competitive compensation programs.
We manage the utilization levels of our delivery professionals through strategic hiring and efficient staffing of projects. Some of our ITthese professionals are hired and trained to work for specific customers or on specific projects and some of our offshore development centers are dedicated to specific customers or projects. Our staff utilization also depends on the general economy and its effect on our customers and their business decisions regarding the use of our services.
2018 compared to 2017
During the year ended December 31, 2018,2021, cost of revenues (exclusive of depreciation and amortization) was $1,186.9$2,483.7 million, representing an increase of 28.8%43.4% from $921.4 million reported last year. The increase was primarily due to an increase in compensation costs as a result of an 18.1% growth in the average number of production headcount for the year and a higher level of accrued variable compensation.
Expressed as a percentage of revenues, cost of revenues (exclusive of depreciation and amortization) was 64.4% and 63.5% during the years ended December 31, 2018 and 2017, respectively. The year-over-year increase reflects a higher level of accrued variable compensation based on the stronger relative performance in 2018, the impact from lower utilization rates and increased stock compensation expense.
2017 compared to 2016
During the year ended December 31, 2017, cost of revenues (exclusive of depreciation and amortization) was $921.4 million, representing an increase of 25.0% from $737.2$1,732.5 million reported last year. The increase was primarily due to an increase in compensation costs as a result of a 15.0%28.9% growth in the average number of production headcount for the year and a higher level of accrued variable compensation in 2021 as well as a 2.3% impact from appreciation of foreign currencies.compared to the previous year.
Expressed as a percentage of revenues, cost of revenues (exclusive of depreciation and amortization) was 63.5%66.1% and 63.6%65.1% during the years ended December 31, 20172021 and 2016,2020, respectively. Our utilizationThe year-over-year increase is primarily due to a 1.7% increase in 2017 improved by 3.8% as compared to 2016 which was offset by higherpersonnel-related costs, including stock-based compensation expense, and the unfavorable impactas a percentage of appreciationrevenues largely driven by a higher level of the Russian ruble, Hungarian forint and Polish zlotyaccrued variable compensation during 2021 as compared to the U.S. dollar.same period in 2020, partially offset by decreases in travel and entertainment expenses.

Discussion of cost of revenues (exclusive of depreciation and amortization) from 2020 as compared to 2019 is included in “Part II. Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Results of Operations” of our Annual Report on Form 10-K for the year ended December 31, 2020.
Selling, General and Administrative Expenses
Selling, general and administrative expenses represent expenses associated with promoting and selling our services and general and administrative functions of our business. These expenses include the costs of salaries, bonuses, fringe benefits, stock-based compensation, expense, severance, bad debt, travel, legal and auditaccounting services, insurance, facilities including operating leases, including lease exit costs, advertising and other promotional activities. In addition, we pay a membership fee of 1% of revenues generated in Belarus to the administrative organization of the Belarus High-Technologies Park. We expect our selling, general and administrative expenses to continue to increase in absolute terms as our business expands but generally to remain steady as a percentage of our revenues in the foreseeable future.
2018 compared to 2017
Our selling, general and administrative expenses have increased due to our continuously expanding operations, strategic business acquisitions, and the hiring of necessary personnel to support our growth. During the year ended December 31, 2018,2021, selling, general and administrative expenses were $373.6$648.7 million, representing an increase of 14.0%33.8% as compared to $327.6$484.8 million reported last year. The increase in selling, general and administrative expenses in 20182021 was primarily driven bydue to a $27.4$136.8 million increase in personnel-related costs, includingwhich include stock-based compensation expense, and talent acquisition and development expenses, and a $16.0 millionprimarily driven by an increase in facilities and infrastructure related expenses to support our growth.headcount.

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Table of Contents
Expressed as a percentage of revenues, selling, general and administrative expenses decreased 2.3%0.9% to 20.3%17.3% for the year ended December 31, 2018.2021. The decrease was primarily drivenattributable to a 1.2% decrease in facility-related expenses as a percentage of revenues, partially offset by the slower growth of 13.7%increases in personnel-related costs including stock-based compensation expense as compared to revenue growth of 27.1%.
2017 compared to 2016
As a result of our expanding operations, acquisitions, and the hiring of a number of senior managers to support our growth, our selling, general and administrative expenses have been increasing. During the year ended December 31, 2017, selling, general and administrative expenses were $327.6 million, representing an increase of 23.2% as compared to $265.9 million reported in the prior year. The increase in selling, general and administrative expenses in 2017 was driven by a $34.6 million increase in personnel-related costs, including stock-based compensation expense and talent acquisition and development expenses and a $16.6 million increase in facilitytravel and infrastructureentertainment expenses to support the increased headcount.
Expressed as a percentage of revenue,revenues.
Discussion of selling, general and administrative expenses decreased 0.3%from 2020 as compared to 22.6%2019 is included in “Part II. Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Results of Operations” of our Annual Report on Form 10-K for the year ended December 31, 2017.2020.
Depreciation and Amortization Expense
2018 compared to 2017Depreciation and amortization expense includes depreciation of physical assets used in the operation of our business such as computer equipment, software, buildings we purchased, leasehold improvements as well as various office furniture and equipment. Depreciation and amortization expense also includes amortization of acquired finite-lived intangible assets.
During the year ended December 31, 2018,2021, depreciation and amortization expense was $36.6$83.4 million, representing an increase of $8.1$20.5 million from $28.6$62.9 million reported last year. The increase in depreciation and amortization expense was primarily due todriven by an increase in computer equipment to support headcount growth. Depreciationgrowth and amortization expense includes amortization of acquired finite-lived intangible assets.assets, which contributed $5.3 million to the year over year increase in depreciation and amortization expense. Expressed as a percentage of revenues, depreciation and amortization expense remained consistentdecreased to 2.2% during the year ended December 31, 20182021 as compared to 2017.2.4% in 2020.
2017Discussion of depreciation and amortization expense from 2020 as compared to 2016
During2019 is included in “Part II. Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Results of Operations” of our Annual Report on Form 10-K for the year ended December 31, 2017, depreciation and amortization expense was $28.6 million, representing an increase of $5.2 million from $23.4 million reported last year. The increase in depreciation and amortization expense was primarily due to an increase in computer equipment to support headcount growth. Depreciation and amortization expense includes amortization of acquired finite-lived intangible assets. Expressed as a percentage of revenues, depreciation and amortization expense remained consistent during the year ended December 31, 2017 as compared to 2016.2020.
Interest and Other (Loss)/Income, Net
Interest and other (loss)/income, net includes interest earned on cash and cash equivalents and employee housing loans, gains and losses from certain financial instruments, interest expense related to our revolving credit facilityborrowings and changes in the fair value of contingent consideration. Interest and other (loss)/income, net decreased from a gain of $3.8 million during the year ended December 31, 2020 to a loss of $1.7 million during the year ended December 31, 2021, which is primarily attributable to a $7.0 million increase in the charge from the change in fair value of contingent consideration reflecting improved expectations for the performance of certain acquisitions, partially offset by higher government grant income in 2021. There were no material changes in interest and other income, net in 20182020 as compared to 2017 and 2016.2019.

Provision for Income Taxes
Determining the consolidated provision for income tax expense, deferred income tax assets and liabilities and any potential related valuation allowances involves judgment. We consider factors that may contribute, favorably or unfavorably, to the overall annual effective tax rate in the current year as well as the future. These factors include statutory tax rates and tax law changes in the countries where we operate and excess tax benefits upon vesting or exercise of equity awards as well as consideration of any significant or unusual items.
As a global company, we are required to calculate and provide for income taxes in each of the jurisdictions in which we operate. During 2018, 20172021, 2020 and 2016,2019, we had $205.2$404.9 million, $180.9$278.1 million and $135.8$234.2 million, respectively, in income before provision for income taxes attributed to our foreign jurisdictions. Changes in the geographic mix or level of annual pre-tax income can also affect our overall effective income tax rate.
Our provision for income taxes also includes the impact of provisions established for uncertain income tax positions, as well as the related net interest and penalty expense. Tax exposures can involve complex issues and may require an extended period to resolve. Although we believe we have adequately reserved for our uncertain tax positions, we cannot provide assurance that the final tax outcome of these matters will not be different from our current estimates. We adjust these reserves in light of changing facts and circumstances, such as the closing of a tax audit, statute of limitation lapse or the refinement of an estimate. To the extent that the final tax outcome of these matters differs from the amounts recorded, such differences will impact the provision for income taxes in the period in which such determination is made.
In Belarus, member technology companies of High-Technologies Park, including our subsidiary, have a full exemption from Belarus income tax through January 2049. However, beginning February 1, 2018, the earnings of the Company’s Belarus local subsidiary are subject to U. S. income taxation due to the Company’s decision to change the tax status of the subsidiary. Consequently, there was less income tax benefit from the Belarus tax exemption for the year ended December 31, 2018 compared to previous years. The aggregate dollar benefits derived from this tax holiday approximated $1.4 million, $15.5 million and $13.6 million for the years ended December 31, 2018, 2017 and 2016, respectively. The benefit the tax holiday had on diluted net income per share approximated $0.02, $0.28 and $0.26 for the years ended December 31, 2018, 2017 and 2016, respectively.
2018 compared to 2017
The provision for income taxes was $9.5$51.7 million in 20182021 and $101.5$51.3 million in 2017.2020. The decreaseincrease was primarily driven by the increase in thepre-tax income year over year, partially offset by a significant increase in excess tax benefits recorded upon vesting or exercise of stock-based awards which were $71.6 million in 2021 compared to $36.6 million in 2020. The effective tax rate decreased from 58.3%13.6% in 20172020 to 3.8%9.7% in 2018 was2021 primarily due to a provisional one-time $74.6 million charge in 2017 as a result of the U.S. Tax Act and $30.0 million in one-time benefits in 2018 primarily resulting from our decision to change the tax status and to classify most of our foreign subsidiaries as disregarded for U.S. income tax purposes as well as adjustments to the 2017 provisional charge.
The U.S. Tax Act significantly changed U.S. corporate income tax laws including a reduction of the U.S. corporate income tax rate from 35.0% to 21.0% effective January 1, 2018. This rate reduction yielded lower taxes on U.S. earnings in 2018, but was offset by U.S. tax imposed on foreign subsidiary earnings due to our decision to file entity classification elections with the Internal Revenue Service for the majority of our foreign subsidiaries to change the tax status and to classify most of our foreign subsidiaries as disregarded for U.S. income tax purposes. This change subjects the income of the disregarded foreign subsidiaries to U.S. income taxation and reduces the impact of new taxes under the U.S. Tax Act on certain foreign-sourced earnings and certain related party payments, which are referred to as GILTI and the base erosion and anti-abuse tax (“BEAT”), respectively. A one-time tax benefit of $26.0 million was recorded to reflect the establishment of net deferred tax assets as a result of the entity classification elections.
The one-time $74.6 million charge in 2017 was comprised of a $64.3 million provisional charge due to a one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax as well as a $10.3 million provisional charge due to the impact of the change in the U.S. statutory tax rate from 35.0% to 21.0% in the periods in which the net deferred tax assets are expected to be realized as a result of the U.S. Tax Act. The provisional charge due to the one-time transition tax was reduced in 2018 to a final charge of $59.4 million. This tax reduction resulted in a $4.9 million tax benefit in 2018. The provisional charge due to the impact of the change in the U.S. statutory tax rate on the valuation of the net deferred tax assets was increased to a final charge of $11.2 million, which resulted in a $0.9 million tax charge in 2018.

In 2017, we reassessed our accumulated foreign earnings in light of the U.S. Tax Act and determined $97.0 million of our accumulated earnings in Belarus were no longer indefinitely reinvested. As a result, we recorded a charge of $4.9 million in the provision for income taxes during the year ended December 31, 2017 for the withholding tax payable to Belarus when the earnings are distributed. Based on proposed tax regulations issued by the U.S. Treasury Department during 2018, it was determined that a U.S. foreign tax credit could be claimed for the withholding tax paid to Belarus resulting in a net $4.9 million tax benefit recognized in 2018. This $4.9 million tax charge in 2017 and offsetting benefit in 2018 also contributed to the decrease in the effective tax rate from 2017 to 2018.
Excess tax benefits associated with equity award exercises and vesting were $17.4 million in 2018 and $9.3 million in 2017. Due to the entity classification elections for U.S. tax purposes, the benefit from the equity awards to employees outside the U.S. contributed to the increase in excess tax benefits for 2018recorded upon vesting or exercise of stock-based awards and also contributed to the decreasetax benefits of certain one-time tax credits recorded in the overall effective tax rate from 2017 to 2018.2021.
2017 compared to 2016
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The provision for income taxes was $101.5 million in 2017 and $27.2 million in 2016. The increase in the effective tax rate from 21.5% in 2016 to 58.3% in 2017 was primarily due to the provisional $74.6 million charge as a resultDiscussion of the U.S. Tax Act. The U.S. Tax Act significantly changed U.S. corporate income tax laws including a reduction of the U.S. corporate income tax rate from 35.0% to 21.0% effective January 1, 2018 and the creation of a territorial tax system with a one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax. In addition, the U.S. Tax Act created new taxes on certain foreign-sourced earnings and certain related party payments, which are referred to as the global intangible low-taxed income tax and the base erosion tax, respectively. The charge was comprised of a $64.3 million provisional charge due to the one-time transition tax as well as a $10.3 million provisional charge due to the impact of the change in the U.S. statutory tax rate from 35.0% to 21.0% in the periods in which the net deferred tax assets are expected to be realized as a result of the U.S. Tax Act.
In 2017, we also reassessed our accumulated foreign earnings in light of the U.S. Tax Act and determined $97.0 million of our accumulated earnings in Belarus are no longer indefinitely reinvested. As a result, we recorded a charge of $4.9 million in the provision for income taxes during the year ended December 31, 2017 for the withholding tax payablefrom 2020 as compared to Belarus when the earnings are distributed.
These charges were partially offset by the adoption2019 is included in “Part II. Item 7. Management’s Discussion and Analysis of a new accounting standard in the first quarterFinancial Condition and Results of 2017 whereby excess tax benefitsOperations — Results of $9.3 million were recognizedOperations” of our Annual Report on Form 10-K for the year ended December 31, 2017 in the income tax provision rather than additional paid-in-capital.2020.
Other factors impacting our effective tax rate include changes in the geographic mix of our earnings attributable to foreign operations toward jurisdictions with lower statutory income tax rates as well as small decreases in statutory tax rates in Hungary, Ukraine and the United Kingdom.
Foreign Exchange Gain / Loss
For discussion of the impact of foreign exchange fluctuations see “Item 7A. Quantitative and Qualitative Disclosures About Market Risk — Foreign Exchange Risk.”
Results by Business Segment
Our operations consist of three reportable segments: North America, Europe, and Russia. The segments represent components of EPAM for which separate financial information is available and used on a regular basis by our chief executive officer, who is also our chief operating decision maker (“CODM”), to determine how to allocate resources and evaluate performance. Our CODM makes business decisions based on segment revenues and segment operating profit.profits. Segment operating profit is defined as income from operations before unallocated costs. Expenses included in segment operating profit consist principally of direct selling and delivery costs as well as an allocation of certain shared services expenses. Certain corporate expenses are not allocated to specific segments as these expenses are not controllable at the segment level. Such expenses include certain types of professional fees, non-corporatecertain taxes included in operating expenses, compensation to non-employee directors and certain other general and administrative expenses, including compensation of specific groups of non-production employees. In addition, the Company does not allocate stock-based compensation, amortization of acquisition-related intangible assets acquired through business combinations, goodwill and other asset impairment charges, stock-based compensation expenses, acquisition-related costs and certain other one-time charges. These unallocated amounts are combined with total segment operating profit to arrive at consolidated income from operations.

We manage our business primarily based on the managerial responsibility for itsthe client base and market. As managerial responsibility for a particular customer relationship generally correlates with the customer’s geographic location, there is a high degree of similarity between customer locations and the geographic boundaries of our reportable segments. In some cases, managerial responsibility for a particular customer is assigned to a management team in another region and is usually based on the strength of the relationship between customer executives and particular members of EPAM’s senior management team. In such cases, the customer’s activity would be reported through the respective management team’steam member’s reportable segment. Our Europe segment includes our business in the APAC region, which is managed by the same management team.
Segment revenues from external customers and segment operating profit, before unallocated expenses, for the North America, Europe and Russia segments for the years ended December 31, 2018, 20172021, 2020 and 20162019 were as follows:
 Year Ended December 31,
 202120202019
 (in thousands) 
Segment revenues:
North America$2,242,248 $1,601,820 $1,380,944 
Europe1,350,484 947,305 820,717 
Russia165,412 110,353 92,137 
Total segment revenues$3,758,144 $2,659,478 $2,293,798 
Segment operating profit:  
North America$462,798 $345,196 $293,757 
Europe233,727 152,902 114,863 
Russia32,547 5,811 17,347 
Total segment operating profit$729,072 $503,909 $425,967 

 Year Ended December 31,
 2018 2017 2016
 (in thousands) 
Segment revenues:     
North America$1,077,094
 $796,126
 $642,216
Europe693,867
 593,167
 474,988
Russia73,148
 62,994
 43,611
Total segment revenues$1,844,109
 $1,452,287
 $1,160,815
Segment operating profit: 
  
  
North America$221,846
 $169,340
 $143,021
Europe115,876
 92,080
 67,545
Russia11,377
 13,906
 7,555
Total segment operating profit$349,099
 $275,326
 $218,121

During the year ended December 31, 2018, the Company began to allocate certain staff recruitment and development expenses into segment operating profit as these expenses became part
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Table of the evaluation of segment management’s performance. These costs were previously not allocated to segments and were included in unallocated amounts in the reconciliation of segment operating profit to consolidated income before provision for income taxes. The effect of this reclassification was not material to segment operating profit and had no impact on total income from operations for the year ended December 31, 2018.Contents
North America Segment
2018 compared to 2017
During 2018,2021, North America segment revenues increased $281.0$640.4 million, or 35.3%40.0%, over last year. Revenues from our North America segment represent 58.4% and 54.8%represented 59.7% of total segment revenues, during 2018 and 2017, respectively.a decrease from 60.2% reported in the corresponding period of 2020. During 2021 as compared to 2020, North America segment operating profits increased $117.6 million, or 34.1%, to $462.8 million. Expressed as a percentage of revenue, North America segment operating profit decreased to 20.6% in 2021 as compared to 21.6% in 2020. This decrease is primarily attributable to increases in personnel-related costs, largely driven by a higher level of accrued variable compensation.
The following table presents North America segment revenues by industry vertical for the periods indicated:
Year Ended December 31, ChangeYear Ended December 31,Change
2018 2017 Dollars  Percentage 20212020Dollars Percentage 
Industry Vertical(in thousands, except percentages)Industry Vertical(in thousands, except percentages)
Software & Hi-Tech$269,067
 $211,350
 $57,717
 27.3%Software & Hi-Tech$559,707 $419,895 $139,812 33.3 %
Business Information & Media251,081
 192,117
 58,964
 30.7%Business Information & Media389,613 334,063 55,550 16.6 %
Financial ServicesFinancial Services361,611 199,594 162,017 81.2 %
Travel & Consumer177,913
 148,190
 29,723
 20.1%Travel & Consumer359,306 221,977 137,329 61.9 %
Life Sciences & Healthcare151,449
 105,857
 45,592
 43.1%Life Sciences & Healthcare340,706 260,518 80,188 30.8 %
Financial Services112,528
 65,170
 47,358
 72.7%
Emerging Verticals115,056
 73,442
 41,614
 56.7%Emerging Verticals231,305 165,773 65,532 39.5 %
Revenues$1,077,094
 $796,126
 $280,968
 35.3% Revenues$2,242,248 $1,601,820 $640,428 40.0 %
Software & Hi-Tech remained the largest industry vertical in the North America segment during the year ended December 31, 2018,2021, growing 27.3%33.3% as compared to the prior year, which was a result of the continued focus on working with our technology customers. The revenues from the Financial Services and Emerging Verticals grew in excess of 50% duringDuring the year ended December 31, 20182021, revenues from the Business Information & Media vertical experienced growth of 16.6% and largely benefited from expansion of services to several of our existing top 10 customers. Financial services grew 81.2% in 2021 compared to 2017 substantially driven bythe prior year primarily due to growth in a wealth management customer that was previously one of our top 200 customers we began servingand is now one of our top 30 customers for the year. Emerging Verticals experienced 39.5% growth during 2021 compared to the prior year largely due to an increase in services provided to a customer in the past 24 months.automotive industry.

During 2018 as compared to 2017, the North America segment’s operating profits increased $52.5 million, or 31.0%, to $221.8 million. North America’s operating profit represented 20.6% of North America segment revenues as compared to 21.3% in 2017.
2017 compared to 2016
North America segment revenues increased $153.9 million, or 24.0%, over 2016 and remained consistent at 54.8% and 55.3% of total revenues for 2017 and 2016, respectively. The North America segment’s operating profits increased $26.3 million, or 18.4%, as compared to 2016, to $169.3 million. North America’s operating profit represented 21.3% of North America segment revenues as compared to 22.3% in 2016. The Media & Entertainment, Financial Services and Emerging Verticals each grew over 30% as compared to 2016 and in total represented 60.8% of the growth in North America segment revenues from 2016.
Europe Segment
Our Europe segment includes the business in the APAC region, which is managed by the same management team.
2018 compared to 2017
During 2018,2021, Europe segment revenues were $693.9$1,350.5 million, reflecting an increase of $100.7$403.2 million, or 17.0%42.6%, from last year. Revenues were positively impacted by changes in foreign currency exchange rates during 2021. Had our Europe segment revenues been expressed in constant currency terms using the exchange rates in effect during 2020, we would have reported revenue growth of 39.3%. Revenues from our Europe segment represent 37.6%35.9% and 40.8%35.6% of total segment revenues during 20182021 and 2017,2020, respectively. During 2021, this segment’s operating profits increased $80.8 million, or 52.9% as compared to last year, to $233.7 million. Europe’s operating profit represented 17.3% of Europe segment revenues as compared to 16.1% in 2020. Europe segment operating profit was positively impacted by changes in foreign currency exchange rates, predominantly the euro and British pound, as well as the recognition of $6.5 million in revenues from performance obligations satisfied in previous periods, partially offset by a higher level of accrued variable compensation. During the year ended December 31, 2020, segment operating profit was negatively impacted by temporary discounts provided to certain customers experiencing challenging economic conditions due to the impact of the COVID-19 pandemic.

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The following table presents Europe segment revenues by industry vertical for the periods indicated:
Year Ended December 31, ChangeYear Ended December 31,Change
2018 2017 Dollars  Percentage 20212020Dollars Percentage 
Industry Vertical(in thousands, except percentages)Industry Vertical(in thousands, except percentages)
Financial Services$253,089
 $233,496
 $19,593
 8.4%Financial Services$372,394 $278,355 $94,039 33.8 %
Travel & Consumer208,445
 160,580
 47,865
 29.8%Travel & Consumer354,041 220,448 133,593 60.6 %
Business Information & MediaBusiness Information & Media275,502 224,922 50,580 22.5 %
Software & Hi-Tech79,121
 70,621
 8,500
 12.0%Software & Hi-Tech102,270 73,288 28,982 39.5 %
Business Information & Media72,898
 64,110
 8,788
 13.7%
Life Sciences & Healthcare20,272
 14,726
 5,546
 37.7%Life Sciences & Healthcare49,900 35,347 14,553 41.2 %
Emerging Verticals60,042
 49,634
 10,408
 21.0%Emerging Verticals196,377 114,945 81,432 70.8 %
Revenues$693,867
 $593,167
 $100,700
 17.0% Revenues$1,350,484 $947,305 $403,179 42.6 %
The Europe segment benefited from strong growth in the Travel & Consumer vertical of 29.8% for the year ended December 31, 2018 as compared to 2017. Financial Services remained the largest industry vertical in the Europe segment. Revenuessegment during the year ended December 31, 2021. The Europe segment benefited from 60.6% growth in Financial Services grew less than 10%Travel & Consumer during the year ended December 31, 2021 as compared to 20172020 primarily due to decreasing revenuesstrong demand from several retail customers and recovery in demand from certain customers outside of our top 5 customers.
During 2018, this segment’s operating profits increased $23.8 million, or 25.8%in the travel industry. For the year ended December 31, 2021 as compared to last year, to $115.9 million. Europe’s operating profit represented 16.7% of Europe segment revenues as compared to 15.5% in 2017.
2017 compared to 2016
Europe segment revenues were $593.2 million, representing an increase of $118.2 million, or 24.9%, from the preceding year. During the years ended December 31, 2017 and 2016, revenues from our Europe segment were 40.8% and 40.9% of total segment revenues, respectively. During 2017, this segment’s operating profits increased $24.5 million, or 36.3% as compared to 2016, to $92.1 million. The Financial Services vertical remained our largest vertical in this segment and grew 5.8% in 2017 as compared to 2016. Over half of the growth in the Europe segment was attributable to the Travel & Consumer and2020, Business Information & Media verticals.vertical experienced slower relative growth at several clients where revenues from certain engagements plateaued compared to the prior year. Revenues in Software & Hi-Tech increased during the year ended December 31, 2021 as compared to 2020 primarily due to the expansion of services provided to one of our top 20 customers and revenues from companies acquired during 2021.
Russia Segment
2018 compared to 2017
During 2018,2021, revenues from our Russia segment increased $10.2$55.1 million relative to 20172020 and represent 4.0% and 4.3%4.4% of total segment revenues during 20182021 compared with 4.2% in 2020. Operating profits of our Russia segment increased $26.7 million as compared to 2020. Expressed as a percentage of Russia segment revenues, the segment’s operating profits were 19.7% and 2017,5.3% in 2021 and 2020, respectively. This increase is attributable to a net benefit in 2021 as compared to the corresponding period of last year from revenues from performance obligations satisfied in previous periods and a benefit from the change in the valuation of the Russian ruble relative to the U.S. dollar.

The following table presents Russia segment revenues by industry vertical for the periods indicated:
Year Ended December 31, ChangeYear Ended December 31,Change
2018 2017 Dollars  Percentage 20212020Dollars Percentage 
Industry Vertical(in thousands, except percentages)Industry Vertical(in thousands, except percentages)
Financial Services$59,337
 $41,466
 $17,871
 43.1 %Financial Services$114,365 $77,286 $37,079 48.0 %
Travel & Consumer7,467
 9,114
 (1,647) (18.1)%Travel & Consumer27,781 16,364 11,417 69.8 %
Software & Hi-Tech2,627
 5,725
 (3,098) (54.1)%Software & Hi-Tech2,620 3,630 (1,010)(27.8)%
Business Information & Media54
 69
 (15) (21.7)%Business Information & Media1,826 1,695 131 7.7 %
Life Sciences & Healthcare13
 26
 (13) (50.0)%Life Sciences & Healthcare703 448 255 56.9 %
Emerging Verticals3,650
 6,594
 (2,944) (44.6)%Emerging Verticals18,117 10,930 7,187 65.8 %
Revenues$73,148
 $62,994
 $10,154
 16.1 % Revenues$165,412 $110,353 $55,059 49.9 %
Operating profits of ourRevenues in the Russia segment decreased $2.5 million when comparedare generally subject to 2017. Expressed as a percentagefluctuations and are impacted by the timing of Russia segment revenues,revenue recognition associated with the segment’s operating profits were 15.6%execution of contracts and 22.1% in 2018 and 2017, respectively. The depreciationthe foreign currency exchange rate of the Russian ruble againstto the U.S. dollardollar. Revenues in the Financial Services vertical primarily benefited from increased revenues from customers in the banking and insurance sector during 20182021 as compared to 2017 significantly impacted2020. Revenues in the Travel & Consumer vertical benefited in 2021 from increased revenues from a single retailer. There have been no significant changes in this segment, which were not similarly offset with the costs dueother individual verticals during 2021 as compared to realized losses on our foreign currency hedges. 2020.
Currency fluctuations of the Russian ruble typically impact the results in the Russia segment. Ongoing economic and geopolitical uncertainty in the region and the volatility of the Russian ruble can significantly impact reported revenues and profitability in this geography.segment. We continue to monitor geopolitical forces, economic and trade sanctions, and other issues involving this region.
2017 compared to 2016
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Table of Contents
RevenuesDiscussion of segment results from our Russia segment increased $19.4 million relative to 2016. Operating profits of our Russia segment increased $6.4 million when compared to 2016. Expressed as a percentage of revenues, the Russia segment’s operating profits were 22.1% and 17.3% in 2017 and 2016, respectively. This growth is partially attributable to the strengthening of the Russian ruble against the U.S. dollar during 20172020 as compared to 2016. Ongoing economic2019 is included in “Part II. Item 7. Management’s Discussion and geopolitical uncertainty in this region as well as significant volatilityAnalysis of Financial Condition and Results of Operations — Results of Operations” of our Annual Report on Form 10-K for the Russian ruble impact this segment.year ended December 31, 2020.
Effects of Inflation
Economies in some countries where we operate particularly Belarus, Russia, Kazakhstan, Ukraine and India have periodically experienced high rates of inflation. Periods of higher inflation may affect various economic sectors in those countries and increase our cost of doing business there. Inflation may increase some of our expenses such as wages. While inflation may impact our results of operations and financial condition and it is difficult to accurately measure the impact of inflation, we believe the effects of inflation on our results of operations and financial condition are not significant.



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Table of Contents
Liquidity and Capital Resources
Capital Resources
Our cash generated from operations has been our primary source of liquidity to fund operations and investments to support the growth of our business. As of December 31, 2018,2021, our principal sources of liquidity were cash and cash equivalents totaling $770.6$1,446.6 million, and $274.6as well as $675.0 million of available borrowings under our revolving credit facility.
Many of our operations are conducted outside the United States and as of December 31, 2018, all cash and cash equivalents held at locations outside of the United States are for future operating needs and we have no intention of repatriating those funds. As part of our ongoing liquidity assessments, we regularly monitor our mix of domestic and international cash flows and cash balances and we may decide to repatriate some or all of our funds to the United States in the future. During the year ended December 31, 2018, we repatriated $167.5 million of cash held in our foreign subsidiaries to the United States. If we decide to remit funds to the United States in the form of dividends in the future, $242.8 million would be subject to foreign withholding taxes. We believe that our available cash and cash equivalents held in the United States and cash flow to be generated from domestic operations will be sufficient to fund our domestic operations and obligations for the foreseeable future.
We have cash in banks in Belarus, Russia, Ukraine, Kazakhstan and Armenia, where the banking sector remains subject to periodic instability, banking and other financial systems generally do not meet the banking standards of more developed markets, and bank deposits made by corporate entities are not insured. As of December 31, 2018, the total amount of cash held in these countries was $179.5 million and of this amount, $119.7 million was located in Belarus. 
As of December 31, 2018, we had $274.6 million available for borrowing under our revolving credit facility and our outstanding debt of $25.0 million represents the minimal required borrowing to keep the credit facility active. As of December 31, 2018, we were in compliance with all covenants specified under the credit facility and anticipate being in compliance for the foreseeable future. See Note 8 “Long-Term Debt”9 “Debt” in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding the terms of our long-termrevolving credit facility and information about debt.
Our ability to expand and grow our business in accordance with current plans and to meet our long-term capital requirements will depend on many factors, including the rate at which our cash flows increase or decrease and the availability of public and private debt and equity financing. We may require additional cash resources due to changed business conditions or other future developments, including any investments or acquisitions we may decide to pursue. If our resources are insufficient to satisfy our cash requirements, we may seek to sell additional equity or debt securities or obtain another credit facility.
Cash Flows
The following table summarizes our cash flows for the periods indicated:
For the Years Ended December 31, For the Years Ended December 31,
2018 2017 2016 202120202019
(in thousands) (in thousands)
Consolidated Statements of Cash Flow Data:     Consolidated Statements of Cash Flow Data:
Net cash provided by operating activities$292,218
 $192,820
 $167,217
Net cash provided by operating activities$572,327 $544,407 $287,453 
Net cash used in investing activities(112,123) (36,151) (9,320)Net cash used in investing activities(368,924)(167,154)(145,369)
Net cash provided by financing activities23,001
 49,746
 10,467
Net cash (used in)/provided by financing activitiesNet cash (used in)/provided by financing activities(59,557)(765)20,363 
Effect of exchange rate changes on cash, cash equivalents and restricted cash(14,240) 11,776
 (3,387)Effect of exchange rate changes on cash, cash equivalents and restricted cash(18,032)9,357 3,530 
Net increase in cash, cash equivalents and restricted cash$188,856
 $218,191
 $164,977
Net increase in cash, cash equivalents and restricted cash$125,814 $385,845 $165,977 
Cash, cash equivalents and restricted cash, beginning of period582,855
 364,664
 199,687
Cash, cash equivalents and restricted cash, beginning of period1,323,533 937,688 771,711 
Cash, cash equivalents and restricted cash, end of period$771,711
 $582,855
 $364,664
Cash, cash equivalents and restricted cash, end of period$1,449,347 $1,323,533 $937,688 
Operating Activities
2018 Compared to 2017
Net cash provided by operating activities during the year ended December 31, 20182021 increased $99.4$27.9 million, or 51.5%5.1%, to $292.2$572.3 million, as compared to 20172020 primarily driven by the $167.5 million increase in net income and 8 day improvementas well as an increase in days sales outstandingaccrued variable compensation expense in 2021. The increase was partially offset by the payout of a higher level of variable compensation related to 2017 performance and a non-cashan increase in net deferred tax assets of $26.0 million as a result of our decisionaccounts receivable during 2021, largely attributable to change the tax status and to classify most of our foreign subsidiaries as disregarded for U.S. income tax purposes.
2017 Compared to 2016
Net cash provided by operating activities during the year ended December 31, 2017 increased $25.6 million, or 15.3%, to $192.8 million,41.3% growth in revenue in 2021 as compared to 2016 primarily driven by the $39.3 million increase in income from operations. The $74.3 million increase in the provision for income taxes had minimal impact on cash flow as it was offset by a $70.5 million increase in Taxes payable primarily attributable to the U.S. Tax Act, which are expected to be paid over the next 8 years.2020.
Investing Activities
2018 Compared to 2017
Net cash used in investing activities during the year ended December 31, 20182021 was $112.1$368.9 million compared to $36.2$167.2 million used in the same period in 2017. During 2018, the increase in2020. The cash used in investing activities was primarily attributable to $315.0 million used during 2021 for the acquisitions of businesses, net $74.3of cash acquired, compared to $18.9 million used for the acquisitions of businesses, net of cash acquired, during 2020. Cash used for capital expenditures was $111.5 million in 2021 compared to cash used to acquire Continuum Innovation LLC and Think Limited and an increase infor capital expenditures of $7.8$68.8 million compared toduring the samecomparable period last year.
2017 Compared to 2016
Netin 2020. Additionally, net cash used in investing activities was positively impacted by the maturity of $60.0 million of time deposits during 2021 and negatively impacted by the year ended December 31, 2017$60.0 million use of cash to purchase these time deposits during 2020. Furthermore, $2.5 million was $36.2 millionused for purchases of non-marketable securities during 2021 compared to $9.3$20.5 million used in the same period in 2016. During 2017, the investing cash outflow was primarily attributed to capital expenditures of $29.8 million and was consistent with capital expenditures of $29.3 million in 2016. Our capital expenditures during 2017 were driven by our continuous investment in facilities and computer equipment to support our increased headcount. Cash inflows during 2016 included a $30.0 million increase in cash upon maturity of certain time deposits, while there were no material time deposit maturities during 2017.2020.
Financing Activities
2018 Compared to 2017
During the year ended December 31, 2018,2021, net cash provided byused in financing activities was $23.0$59.6 million, representing a $26.7compared to $0.8 million decrease from $49.7 millionnet cash provided byused in financing activities in 2017.2020. During 2018, net2021, we received cash received from the exercises of stock options issued under our long-term incentive plans was $34.8of $26.3 million, a decreasecompared to $26.4 million received in the corresponding period of $19.12020. These cash inflows were offset by cash used for the payments of withholding taxes related to net share settlements of restricted stock units of $41.6 million from the $54.0in 2021, compared to $20.1 million during 2017.
2017 Compared to 2016
Duringpaid in 2020. Additionally, the year ended December 31, 2017, net cash provided by financing activities was $49.72021 included payments of $40.2 million representing a $39.3 million increase from $10.5 million cash provided by financing activities in 2016. The increase was primarily attributable to higher proceeds from increased exercises of stock options issued under our long-term incentive plans. During 2017, stock option exercises contributed $54.0 million of cash compared to $18.0 million during 2016.

Contractual Obligations and Future Capital Requirements
Contractual Obligations
Set forth below is information concerning our significant fixed and determinable contractual obligations as of December 31, 2018.
 Total 
Less than 1
Year
 1-3 Years 3-5 Years 
More than 5
Years
 (in thousands)
Operating lease obligations$238,866
 $46,082
 $70,841
 $44,459
 $77,484
U.S. Tax Act transition tax (1)
42,253
 
 2,492
 13,449
 26,312
Long-term incentive plan payouts(2)
35,148
 12,861
 19,916
 2,371
 
Long-term debt obligations(3)
29,404
 1,309
 2,579
 25,516
 
 Total contractual obligations$345,671
 $60,252
 $95,828
 $85,795
 $103,796
(1)The U.S. Tax Act transition tax on undistributed foreign earnings is payable over eight years. See Note 7 “Income Taxes” to our consolidated financial statements.
(2)
We estimate our future obligations for long-term incentive plan payouts by assuming the closing price per share of our common stock at
December 31, 2018 remains constant into the future. This is an estimate as actual prices will vary over time.
(3)Our future obligations related to the 2017 Credit Facility consist of principal, interest and fees for the unused balance. We assume the floating interest rate in effect at December 31, 2018 will remain constant into the future. This is an estimate, as actual rates will vary over time. In addition, for the 2017 Credit Facility, we assume that the balance outstanding and the unused balance as of December 31, 2018 remain the same through the remaining term of the agreement. The actual respective balances under our 2017 Credit Facility may fluctuate significantly in future periods depending on the business decisions of management.
As of December 31, 2018, we had $1.4 million of unrecognized tax benefits for which we are unable to make a reliable estimate of the eventual cash flows by period that may be required to settle these matters. In addition, we had recorded $7.5 millionacquisition-date fair value of contingent consideration liabilities ascompared to payments of $7.0 million attributable to acquisition-date fair value of contingent consideration during the year ended December 31, 2018 related to2020.
Discussion of the acquisitionscomparison of businesses that are notthe cash flows between 2020 and 2019 is included in “Part II. Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources” of our Annual Report on Form 10-K for the table above due to the uncertainty involved with the potential payments.
Letters of Credit
Atyear ended December 31, 2018, we had one irrevocable standby letter2020.
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Table of credit totaling $0.4 million under the 2017 Credit Facility, which is required to secure commitments for office rent. The letter of credit expires on August 2, 2019 with a possibility of extension for an additional period of one year from the present or any future expiration date.Contents
Future Capital Requirements
We believe that our existing cash and cash equivalents combined with our expected cash flow from operations will be sufficient to meet our projected operating and capital expenditure requirements for at least the next twelve months and that we possess the financial flexibility to execute our strategic objectives, including the ability to make acquisitions and strategic investments in the foreseeable future. However, our ability to generate cash is subject to our performance, general economic conditions, industry trends and other factors.factors including the impact of the COVID-19 pandemic as described elsewhere in this MD&A. To the extent that existing cash and cash equivalents and operating cash flow are insufficient to fund our future activities and requirements, we may need to raise additional funds through public or private equity or debt financing. If we issue equity securities in order to raise additional funds, substantial dilution to existing stockholders may occur. If we raise cash through the issuance of additional indebtedness, we may be subject to additional contractual restrictions on our business. There is no assurance that we would be able to raise additional funds on favorable terms or at all.
Borrowings
See Note 8 “Leases” and Note 9 “Debt” in the notes to our consolidated financial statements in this Annual Report on Form 10-K.
Off-Balance Sheet Commitments and Arrangements
We do not have any material obligations under guarantee contracts or other contractual arrangements other than as disclosed in Note 1415 “Commitments and Contingencies” in the notes to our consolidated financial statements in this Annual Report on Form 10-K. We have not entered into any transactions with unconsolidated entities where we have financial guarantees, subordinated retained interests, derivative instruments, or other contingent arrangements that expose us to material continuing risks, contingent liabilities, or any other obligation under a variable interest in an unconsolidated entity that provides financing, liquidity, market risk, or credit risk support to us, or engages in leasing, hedging, or research and development services with us.

42


Item 7A. Quantitative and Qualitative Disclosures About Market Risk
We are exposed to certain market risks in the ordinary course of our business. These risks primarily result primarily from concentrationschanges in concentration of credit changes inrisks, interest rates and foreign currency exchange rates and interest rates. In addition, our international operations are subject to risks related to differing economic conditions, changes in political climate, differing tax structures, and other regulations and restrictions.
Concentration of Credit and Other Credit Risks
Financial instruments that potentially subject us to significant concentrations of credit risk consist primarily of cash, and cash equivalents, short-term investments and trade accounts receivable and unbilled revenues.receivables.
We maintain our cash, and cash equivalents and short-term investments with financial institutions. We believe that our credit policies reflect normal industry terms and business risk. We do not anticipate non-performance by the counterparties.
We have cash in banks in countries such as Belarus, Russia, Ukraine, Kazakhstan and Armenia, where the banking sector remains subject to periodic instability, banking and other financial systems generally do not meet the banking standards of more developed markets, and bank deposits made by corporate entities are not insured. As of December 31, 2018, $179.52021, we had $232.6 million of total cash was keptand cash equivalents in banks in these countries,Russia, Belarus and Ukraine, representing 16.1% our total cash and cash equivalents. We place our cash and cash equivalents with financial institutions considered stable in the region, limit the amount of credit exposure with any one financial institution and conduct ongoing evaluations of the credit worthiness of the financial institutions with which $119.7 million was held in Belarus. In this region, and particularly in Belarus, awe do business. A banking crisis, bankruptcy or insolvency of banks that process or hold ourthe Company’s funds, or sanctions may result in the loss of our deposits or adversely affect ourthe Company’s ability to complete banking transactions, in the region, which could adversely affect our business and financial condition. Cash in this regionthese countries is used for short-termthe operational needs of the local entities and cash balances in those banks movechange with the expected operating needs of thosethese entities. We regularly monitor cash held in these countries and, to the extent the cash held exceeds amounts required to support our operations in these countries, the Company distributes the excess funds into markets with more developed banking sectors.
Accounts receivable and unbilled revenues
Trade receivables are generally dispersed across many customers operating in different industries; therefore, concentration of credit risk is limited. There were no customers individually exceeding 10% of our accounts receivable or unbilled revenues as oflimited and we do not believe significant credit risks existed at December 31, 2018. There were no customers individually exceeding 10% of our total revenues for the years ended December 31, 2018 and 2017. During the year ended December 31, 2016, the Company had one customer, UBS AG, which contributed revenues of $137.6 million and accounted for more than 10% of total revenues in the period indicated.
During the year ended December 31, 2018, our top five customers accounted for 22.3% of our total revenues, and our top ten customers accounted for 31.6% of our total revenues. During the year ended December 31, 2017, our top five customers accounted for 24.0% of our total revenues, and our top ten customers accounted for 33.9% of our total revenues.
2021. Though our results of operations depend on our ability to successfully collect payment from our customers for work performed, historically, credit losses and write-offs of accounts receivable balancestrade receivables have not been material to our consolidated financial statements. If any of our customers enter bankruptcy protection or otherwise take steps to alleviate their financial distress, including distress resulting from the COVID-19 pandemic, our credit losses and write-offs of trade receivables could increase, which would negatively impact our results of operations.
Interest Rate Risk
Our exposure to market risk is influenced by the changes in interest rates on our cash and cash equivalent deposits, short-term investments and paid on any outstanding balance on our borrowings, mainly under our 20172021 Credit Facility, which is subject to a variety of rates depending on the typecurrency and timing of funds borrowed. We do not believe we are exposed to material direct risks associated with changes in interest rates related to these deposits, investments and borrowings.
Foreign Exchange Risk
Our global operations are conducted predominantly in U.S. dollars. Other than U.S. dollars, we generatethe Company generates revenues in various currencies, principally, in euros, British pounds, Russian rubles, Swiss francs, and Canadian dollars and Russian rubles. Other than U.S. dollars, we incurincurs expenditures principally in Russian rubles, Polish zlotys, euros, Swiss francs, Hungarian forints, Polish zlotys, British pounds, Swiss francs, euros, Indian rupees, and Chinese yuan renminbi associated with the location of our delivery centers.and Mexican pesos. As a result, currency fluctuations, specifically the depreciation of the euro, British pound, and Canadian dollar and the appreciation of the Russian rubles,ruble, Hungarian forints,forint, Polish zlotys,zloty, Indian rupee and Chinese yuan renminbi and Indian rupees relative to the U.S. dollar, could negatively impact our results of operations.
During the year ended December 31, 2018,2021, our foreign exchange gainloss was $0.5$7.2 million compared to a $3.2$4.7 million loss reported last year.
During the year ended December 31, 2018,2021, approximately 35.5%34.8% of consolidated revenues and 41.5%45.6% of operating expenses were denominated in currencies other than the U.S. dollar.


During 2018, we implemented a hedging program through which we entered into a series
43

To manage the risk of fluctuations in foreign currency exchange forward contracts that are designated as cash flow hedges of forecasted Russian ruble, Indian rupeerates and Polish zloty transactions. We entered into these foreign exchange contracts to hedge a portion of our forecasted foreign currency denominated operating expenses in the normal course of business, we implemented a hedging program through which we enter into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Russian ruble, Polish zloty, Hungarian forint and accordingly, they are not speculative in nature.Indian rupee transactions. As of December 31, 2018,2021, the net unrealized loss from these hedges was $3.3$4.4 million.
Management supplements results reported in accordance with United States generally accepted accounting principles, referred to as GAAP, with non-GAAP financial measures. Management believes these measures help illustrate underlying trends in our business and uses the measures to establish budgets and operational goals, communicated internally and externally, for managing our business and evaluating its performance. When important to management’s analysis, operating results are compared on the basis of “constant currency”, which is a non-GAAP financial measure. This measure excludes the effect of foreign currency exchange rate fluctuations by translating the current period revenues and expenses into U.S. dollars at the weighted average exchange rates of the prior period of comparison.
During the year ended December 31, 2018,2021, we reported revenue growth of 27.1%.41.3% over the prior year. Had our consolidated revenues been expressed in constant currency terms using the exchange rates in effect during 2017,2020, we would have reported revenue growth of 26.9%39.9%. During 2018,2021, our revenues have benefited from the appreciation of the euro, and the British pound, relative to the U.S. dollar, which was partially offset by the depreciation of the Russian ruble and Canadian dollar relative to the U.S. dollar. During the year ended December 31, 2018,2021, we reported net income growth of 230.2%47.2% over the previous year. Had our consolidated results been expressed in constant currency terms using the exchange rates in effect during 2017,2020, we would have reported net income growth of 226.3%41.2%. Net income has beenwas most positively impacted by appreciation of the euro and British pound relative to the depreciationU.S. dollar and partially offset by the negative impact from the appreciation of the Russian ruble partially offset by the appreciation of the Polish zloty relative to the U.S. dollar.
Item 8. Financial Statements and Supplementary Data
The information required is included in this Annual Report on Form 10-K beginning on page F-1.
Item 9. Changes In and Disagreements with Accountants on Accounting and Financial Disclosure
None.
Item 9A. Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures
Based on management’s evaluation, with the participation of our Chief Executive Officer and Chief Financial Officer, as of the end of the period covered by this report, these officers have concluded that our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are effective to provide reasonable assurance that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and is accumulated and communicated to management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting
There were no changes in our internal control over financial reporting during the quarter ended December 31, 20182021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting, except as described below.
During the year ended December 31, 2018,2021, the Company acquired Continuum Innovation LLC together with its subsidiaries and Think Limited,made certain business acquisitions, as described more fully in Note 2 “Acquisitions” in the notes to theour consolidated financial statements.statements in this Annual Report on Form 10-K. As permitted by the Securities and Exchange Commission, management has elected to exclude these acquired entities from its assessment of the effectiveness of its internal controls over financial reporting as of December 31, 2018.2021. The Company began to integrate these acquired companies into its internal control over financial reporting structure subsequent to their respective acquisition dates and expects to complete this integrationthese integrations in 2019.2022.

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Management’s Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. generally accepted accounting principles.
Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
Based on this assessment, management concluded that our internal control over financial reporting was effective as of December 31, 20182021 to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. generally accepted accounting principles.
Management has excluded Continuum Innovation LLC together with its subsidiaries and Think Limitedcertain business acquisitions from our assessment of the effectiveness of our internal control over financial reporting as of December 31, 20182021 since these entities were acquired in business combinations in 2018.2021. These businesses are included in our 20182021 consolidated financial statements and constituted 6.0%15.1% of total assets as of December 31, 20182021 and 2.0%3.0% of revenues for the year then ended.
The effectiveness of our internal control over financial reporting as of December 31, 20182021 has been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report, which appears in “Part IV. Item 15 Exhibits, Financial Statement Schedule” of this Annual Report on Form 10-K.

Inherent Limitations on Effectiveness of Controls
Our management, including the CEO and CFO, does not expect that our disclosure controls or our internal control over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. The design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Further, because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been detected. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Projections of any evaluation of the effectiveness of controls to future periods are subject to risks. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures.
Item 9B. Other Information
None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections
None.

PART III
Item 10. Directors, Executive Officers and Corporate Governance
We incorporate by reference the information required by this Item from the information set forth under the captions “Board of Directors”, “Corporate Governance”, and “Our Executive Officers”, and “Section 16(a) Beneficial Ownership Reporting Compliance” in our definitive proxy statement for our 20192022 annual meeting of stockholders, to be filed within 120 days after the end of the year covered by this Annual Report on Form 10-K, pursuant to Regulation 14A under the Exchange Act (our “2019“2022 Proxy Statement”).
Item 11. Executive Compensation
We incorporate by reference the information required by this Item from the information set forth under the captions “Executive Compensation” and “Compensation Committee Interlocks and Insider Participation” in our 20192022 Proxy Statement.
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Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

We incorporate by reference the information required by this Item from the information set forth under the caption “Security Ownership of Certain Beneficial Owners and Management” in our 20192022 Proxy Statement.
Equity Compensation Plan Information
The following table sets forth information about awards outstanding as of December 31, 20182021 and securities remaining available for issuance under our 2015 Long-Term Incentive Plan (the “2015 Plan”), our 2012 Long-Term Incentive Plan (the “2012 Plan”), the Amended and Restated 2006 Stock Option Plan (the “2006 Plan”) and the 2012 Non-Employee Directors Compensation Plan (the “2012 Directors Plan”) and the 2021 Employee Stock Purchase Plan (“ESPP”) as of December 31, 2018.2021.
Plan Category 
Number of securities
to be issued upon
exercise of outstanding options, warrants
and rights 
 
Weighted average
exercise price of
outstanding options,
warrants and rights 
 
Number of securities
remaining available for
future issuance under
equity compensation
plans (excluding
securities reflected in
column (a)) 
Plan CategoryNumber of securities
to be issued upon
exercise of outstanding options, warrants
and rights 
Weighted average
exercise price of
outstanding options,
warrants and rights 
Number of securities
remaining available for
future issuance under
equity compensation
plans (excluding
securities reflected in the first column) 
(in thousands, except dollar amounts)
Equity compensation plans approved by security holders: (1)
       5,865,980
 
(2) 
Equity compensation plans approved by security holders: (1)
5,688 (2)
Stock options 4,082,944
 
(3) 
 $44.54
 
(4) 
 
 
 
Stock options2,318 (3)$77.79 (4)— 
Restricted stock unit and restricted stock awards 828,288
 
(5) 
 $
 
 
 
 
 
Restricted stock unitsRestricted stock units599 (5)$— — 
Equity compensation plans not approved by security holders 
 $
 
 Equity compensation plans not approved by security holders— $— — 
Total 4,911,232
  $44.54
  
 Total2,917 $77.79 5,688 
(1)
(1)This table includes the following stockholder approved plans: the 2015 Plan, the 2012 Plan, the 20062012 Directors Plan and the 2012 Directors Plan.ESPP.
(2)Represents the number of shares available for future issuances under our stockholder approved equity compensation plans and is comprised of 5,332,1284,266 thousand shares available for future issuance under the 2015 Plan, and 533,852522 thousand shares available for future issuances under the 2012 Directors Plan.Plan and 900 thousand shares that may be issued under the ESPP.
(3)Represents the number of underlying shares of common stock associated with outstanding options under our stockholder approved plans and is compriseddoes not include purchase rights under the ESPP, as the purchase price and number of 658,192 shares underlying options grantedto be purchased under our 2015 Plan; 3,148,937 shares underlying options granted under our 2012 Plan; and 275,815 shares underlying options granted under our 2006 Plan.the ESPP are not determined until the end of the relevant purchase period.
(4)Represents the weighted-average exercise price of stock options outstanding under the 2015 Plan and the 2012 Plan and the 2006 Plan.
(5)Represents the number of underlying shares of common stock associated with outstanding restricted stock units and restricted stock awards under our stockholder approved plans and is comprised of 811,700596 thousand shares underlying restricted stock units granted under our 2015 Plan; 9,875 shares underlying restricted stock units granted under our 2012 Plan;Plan and 6,7133 thousand shares underlying restricted stock units granted under our 2012 Directors Plan.
Item 13. Certain Relationships and Related Transactions, and Director Independence
We incorporate by reference the information required by this Item from the information set forth under the caption “Certain Relationships and Related Transactions and Director Independence” in our 20192022 Proxy Statement.
Item 14. Principal Accountant Fees and Services
We incorporate by reference the information required by this Item from the information set forth under the caption “Independent Registered Public Accounting Firm” in our 20192022 Proxy Statement.






46

Table of Contents
PART IV
Item 15. Exhibits, Financial Statement Schedules
(a)We have filed the following documents as part of this annual report:
1.Audited Consolidated Financial Statements
Reference is made to the Index to Consolidated Financial Statements on Page F-1
Page
Index to Consolidated Financial StatementsF-1
Report of Independent Registered Public Accounting FirmF-2
Consolidated Balance Sheets as of December 31, 2018 and 2017F-4
Consolidated Statements of Income and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016F-5
Consolidated Statements of Changes in Stockholders’ Equity for the Years Ended December 31, 2018, 2017 and 2016F-6
Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016F-8
Notes to Consolidated Financial Statements for the Years Ended December 31, 2018, 2017 and 2016F-10
2.Financial Statement Schedules
Reference is made to the Index to Consolidated Financial Statements on Page F-1
Schedule II Valuation and Qualifying Accounts is filed as part of this Annual Report on Form 10-K and should be read in conjunction with our audited consolidated financial statements and the related notes.
47

3.Exhibits
A list of exhibits required to be filed as part of this Annual Report on Form 10-K is set forth in the Exhibit Index.below:

EXHIBIT INDEX
Exhibit

Number
Description
3.1
3.2
4.1
10.1†4.4*
10.2†10.1��
10.3†
10.4†10.2†
10.5†10.3†
10.6†10.4†
10.7†10.5†
10.8†10.6†
10.9†10.7†
10.10†10.8†
10.11†10.9†
10.12†10.10†
10.13†10.11†
10.14†10.12†
10.15†10.13†
10.16†10.14†
10.17†10.15†
10.18†10.16†
10.19†10.17†
10.20†10.18†
10.21†10.19†

10.20†
10.22†
48

Table of Contents
10.23†10.21†
10.24†10.22†
10.25†10.23†
10.26†
10.27†10.24†
10.28*†10.25†
10.29†10.26†
10.30†10.27†
10.31†10.28†
10.3210.29†
10.30
10.33*21.1*
21.1*
23.1*
31.1*
31.2*
32.1*
32.2*
101.INS**101.INSXBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH**101.SCHInline XBRL Taxonomy Extension Schema Document
101.CAL**101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF**101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB**101.LABInline XBRL Taxonomy Extension Label Linkbase Document
101.PRE**101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document
104Cover Page Interactive Data File - (formatted as Inline XBRL and contained in Exhibit 101)
Indicates management contracts or compensatory plans or arrangements
*Exhibits filed herewith
**As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Section 11 and 12 of the Securities Act of 1933, as amended, and Section 18 of the Securities Exchange Act of 1934, as amended.


Item 16. Form 10-K Summary
None.
49

Table of Contents
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


Date: February 25, 2019
2022
EPAM SYSTEMS, INC.
EPAM SYSTEMS, INC.
By:
By:/s/ Arkadiy Dobkin
Name: Arkadiy Dobkin
Title: Chairman, Chief Executive Officer and President

(principal executive officer)
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
SignatureTitleDate
/s/ Arkadiy DobkinChairman, Chief Executive Officer and President
(principal executive officer)
February 25, 2022
Arkadiy Dobkin
/s/ Jason PetersonSenior Vice President, Chief Financial Officer and Treasurer
(principal financial officer)
February 25, 2022
Jason Peterson
/s/ Gary AbrahamsVice President, Corporate Controller, Chief Accounting Officer
(principal accounting officer)
February 25, 2022
Gary Abrahams
SignatureTitleDate
/s/ Arkadiy DobkinEugene Roman
Chairman, Chief Executive Officer and President
(principal executive officer)
Director
February 25, 20192022
Arkadiy DobkinEugene Roman
/s/ Jason PetersonHelen Shan
Senior Vice President, Chief Financial Officer and Treasurer
(principal financial officer)
Director
February 25, 20192022
Jason PetersonHelen Shan
/s/ Gary Abrahams
Vice President, Corporate Controller, Chief Accounting Officer
(principal accounting officer)
February 25, 2019
Gary Abrahams
/s/ Helen ShanDirectorFebruary 25, 2019
Helen Shan
/s/ Jill B. SmartDirectorFebruary 25, 20192022
 Jill B. Smart
/s/ Karl RobbDirectorFebruary 25, 20192022
Karl Robb
/s/ Peter KuerpickDirectorFebruary 25, 2019
Peter Kuerpick
/s/ Richard Michael MayorasDirectorFebruary 25, 20192022
Richard Michael Mayoras
/s/ Robert E. SegertDirectorFebruary 25, 20192022
Robert E. Segert
/s/ Ronald P. VargoDirectorFebruary 25, 20192022
Ronald P. Vargo

50

Table of Contents
EPAM SYSTEMS, INC.
FORM 10-K
FOR THE YEAR ENDED DECEMBER 31, 2018
TABLE OF CONTENTS

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS


Page
Audited Consolidated Financial Statements
F-7
Financial Statement Schedule:

F-1

Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Stockholders and the Board of Directors of EPAM Systems, Inc.
Opinion on the Financial Statements
We have audited the accompanying consolidated balance sheets of EPAM Systems, Inc. and subsidiaries (the “Company”) as of December 31, 2018 and 2017, the related consolidated statements of income and comprehensive income, changes in stockholders’ equity, and cash flows, for each of the three years in the period ended December 31, 2018, and the related notes and the schedule listed in the Index at Item 15 (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2018 and 2017, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2018, in conformity with accounting principles generally accepted in the United States of America.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 25, 2019, expressed an unqualified opinionon the Company's internal control over financial reporting.
Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ DELOITTE & TOUCHE LLP

Philadelphia, Pennsylvania  
February 25, 2019

We have served as the Company’s auditor since 2006.



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Stockholders and the Board of Directors of EPAM Systems, Inc.
Opinion on the Financial Statements
We have audited the accompanying consolidated balance sheets of EPAM Systems, Inc. and subsidiaries (the “Company”) as of December 31, 2021 and 2020, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2021, and the related notes and the schedule listed in the Index at Item 15 (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2021, in conformity with accounting principles generally accepted in the United States of America.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 25, 2022, expressed an unqualified opinion on the Company's internal control over financial reporting.

Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters
The critical audit matters communicated below are matters arising from the current-period audit of the financial statements that were communicated or required to be communicated to the audit committee and that (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.
Revenues — Refer to Notes 1 and 11 to the financial statements

Critical Audit Matter Description
The Company recognizes revenue when control of goods or services is passed to a customer in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Such control may be transferred over time or at a point in time depending on satisfaction of obligations stipulated by the contract. Total revenues were $3,758 million for the year ended December 31, 2021.
In 2021, the Company recognized revenue related to contracts with customers, with no single customer accounting for more than 10% of revenues. Although some of these revenues are recognized under long-term agreements of more than one year, others are negotiated on an annual basis or shorter. Given the number of customers and the nature of the different customer agreements, auditing revenue was challenging due to the extent of audit effort required to evaluate whether revenue was recorded in accordance with the terms of the contracts with the Company’s customers.

F-2

Table of Contents
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to whether revenue was recorded in accordance with the terms of the contracts with the Company’s customers included the following, among others:
We tested the effectiveness of controls over revenue, including management’s controls over (1) the determination of whether an arrangement with a customer meets the criteria to be considered a contract under ASC 606 and (2) the inputs used in and the mathematical accuracy of the contract revenue calculations and the terms of the related customer contracts.
We selected a sample of recorded revenue transactions and (1) recalculated the amount using the terms of the customer contract and (2) tested whether the underlying arrangement with the customer met the criteria to be considered a contract under ASC 606 as of the date the revenue was recorded.
We selected a sample of hours charged by the Company’s employees in the Company’s internal time tracking system, obtained support for whether such hours represented services provided to a customer, and tested whether the hours had been properly evaluated for inclusion in the Company’s revenue calculations.
Business Combinations – PolSource S.A. Acquisition – Acquisition-date Fair Value of Contingent Consideration — Refer to Notes 1, 2 and 4 to the financial statements
Critical Audit Matter Description
As discussed in Note 2 to the consolidated financial statements, on April 2, 2021, the Company acquired PolSource S.A. and its subsidiaries for a purchase price of $148.2 million, including contingent consideration with an acquisition-date fair value of $35.4 million. The Company could pay up to $45 million in contingent consideration subject to the attainment of certain revenue, earnings, and operational targets related to the year ended December 31, 2021. The transaction was accounted for using the acquisition method of accounting for business combinations. Accordingly, the purchase price was allocated to the assets acquired and liabilities assumed based on their respective fair values.
Management estimated the fair value of contingent consideration attributable to revenue and earnings targets using a Monte Carlo simulation that included future revenues and earnings projections of the acquired business during the earn-out period, revenue and asset volatilities, and the selection of discount rates.
Given that the fair value determination of the contingent consideration requires management to make significant estimates and assumptions related to future revenues and earnings projections, revenue and asset volatilities, and the selection of discount rates, performing audit procedures to evaluate the reasonableness of these estimates and assumptions required a high degree of auditor judgment and an increased extent of effort, including the need to involve our fair value specialists.
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to the future revenues and earnings projections, revenue and asset volatilities, and the selection of discount rates used by management to estimate the acquisition-date fair value of the contingent consideration included the following, among others:
We tested the effectiveness of controls over the valuation of the contingent consideration, including management’s controls over the future revenues and earnings projections, revenue and asset volatilities, and the selection of discount rates.
We assessed the reasonableness of management’s future revenues and earnings projections by considering whether the projections were consistent with evidence obtained in other areas of the audit and by comparing the projections to (1) the acquired company’s historical results, (2) historical growth rates of the Company, and (3) actual performance subsequent to the acquisition.
With the assistance of our fair value specialists, we evaluated the reasonableness of (1) the valuation methodology and (2) the valuation assumptions, such as the revenue and asset volatilities and discount rates, by:
Testing the source information underlying the determination of the revenue and asset volatilities and discount rates and testing the mathematical accuracy of the calculations.

F-3

Table of Contents
Testing the mathematical accuracy of the Company’s valuation, including the Monte Carlo simulation model and other significant calculations in the valuation models by replicating the valuation models using the tested inputs and comparing those results to the Company’s estimates.
Business Combinations – PolSource S.A. and Emakina Group Acquisitions – Customer Relationship Intangible Assets – Refer to Notes 1 and 2 to the financial statements
Critical Audit Matter Description
During 2021, the Company completed the acquisitions of PolSource S.A. and Emakina Group (collectively referred to as “the acquired entities”). The Company accounted for the acquisitions under the acquisition method of accounting for business combinations. Accordingly, the purchase price was allocated, on a preliminary basis, to the assets acquired and liabilities assumed based on their respective fair values, including customer relationship intangible assets with an aggregate fair value of approximately $42.6 million. The Company estimated the fair value of the customer relationship intangible assets using the multi-period excess earnings method which is a specific discounted cash flow method. The fair value determination of the customer relationship intangible assets required management to make significant estimates and assumptions related to forecasted future cash flows, including the selection of customer attrition rates, terminal growth rates, and discount rates.
We identified the customer relationship intangible assets for the acquired entities as a critical audit matter because of the significant estimates and assumptions management made to fair value these assets. This required a high degree of auditor judgment and an increased extent of effort, including the involvement of our fair value specialists, when performing audit procedures to evaluate the reasonableness of management’s forecasts of future cash flows, including the selection of customer attrition rates, terminal growth rates, and discount rates.
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to the forecasts of future cash flows and the selection of the customer attrition rates, terminal growth rates, and discount rates for the customer relationship intangible assets for the acquired entities included the following, among others:
We tested the effectiveness of controls over the valuation of the customer relationship intangible assets, including management’s controls over forecasts of future revenues and earnings projections and the selection of the customer attrition rates, terminal growth rates, and discount rates.
We assessed the reasonableness of management’s future revenues and earnings projections by considering whether the projections were consistent with evidence obtained in other areas of the audit and by comparing the projections to (1) the acquired company’s historical results, (2) historical growth rates of the Company, and (3) actual performance subsequent to the acquisition.
With the assistance of our fair value specialists, we evaluated the reasonableness of the (1) valuation methodologies; (2) customer attrition rates by testing the mathematical accuracy of the rates used and comparing them to historical customer data; (3) terminal growth rates by comparing them to industry growth rates and the projected nominal gross domestic product (GDP) growth rate; and (4) discount rates, which included testing the source information underlying the determination of the discount rates, testing the mathematical accuracy of the calculations, and developing a range of independent estimates and comparing those to the discount rates selected by management.


/s/ DELOITTE & TOUCHE LLP

Philadelphia, Pennsylvania  
February 25, 2022

We have served as the Company’s auditor since 2006.


F-4

Table of Contents
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Stockholders and Board of Directors of EPAM Systems, Inc.
Opinion on Internal Control over Financial Reporting
We have audited the internal control over financial reporting of EPAM Systems, Inc. and subsidiaries (the “Company”) as of December 31, 2018,2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018,2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by COSO.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements and financial statement schedule as of and for the year ended December 31, 2018,2021, of the Company and our report dated February 25, 2019,2022 , expressed an unqualified opinion on those financial statements and financial statement schedule.
As described inManagement’s Report on Internal Control Over Financial Reporting, management excluded from its assessment the internal control over financial reporting at Continuum Innovation LLC, together with its subsidiaries, and Think Limitedacquired businesses as described more fully in Note 2 to the consolidated financial statements, which were acquired on March 15, 2018 and November 1, 2018, respectively,during the year ended December 31, 2021, and whose financial statements constitute 6.0%15.1% of total assets and 2.0%3.0% of revenues of the consolidated financial statement amounts as of and for the year ended December 31, 2018.2021. Accordingly, our audit did not include the internal control over financial reporting at Continuum Innovation LLC, together with its subsidiaries, and Think Limited.acquired businesses as described more fully in Note 2 to the consolidated financial statements.
Basis for Opinion
The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.


/s/ DELOITTE & TOUCHE LLP
Philadelphia, Pennsylvania
February 25, 20192022

F-5

Table of Contents
EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(In thousands, except share and per share data)par value)
As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
As of  
 December 31, 
 2021
As of  
 December 31, 
 2020
Assets   Assets
Current assets   Current assets
Cash and cash equivalents$770,560
 $582,585
Cash and cash equivalents$1,446,625 $1,322,143 
Accounts receivable, net of allowance of $1,557 and $1,186, respectively297,685
 265,639
Unbilled revenues104,652
 86,500
Short-term investmentsShort-term investments— 60,007 
Trade receivables and contract assets, net of allowance of $5,521 and $4,886, respectivelyTrade receivables and contract assets, net of allowance of $5,521 and $4,886, respectively768,928 501,062 
Prepaid and other current assets26,171
 25,309
Prepaid and other current assets53,927 29,570 
Total current assets1,199,068
 960,033
Total current assets2,269,480 1,912,782 
Property and equipment, net102,646
 86,419
Property and equipment, net236,214 169,533 
Operating lease right-of-use assets, netOperating lease right-of-use assets, net184,841 228,672 
Intangible assets, net57,065
 44,511
Intangible assets, net101,143 51,975 
Goodwill166,832
 119,531
Goodwill530,723 211,956 
Deferred tax assets69,983
 24,974
Deferred tax assets143,928 92,454 
Other noncurrent assets16,208
 14,788
Other noncurrent assets56,898 53,960 
Total assets$1,611,802
 $1,250,256
Total assets$3,523,227 $2,721,332 


  
Liabilities 
  
Liabilities  
Current liabilities 
  
Current liabilities  
Accounts payable$7,444
 $5,574
Accounts payable$24,847 $10,189 
Accrued compensation and benefits expensesAccrued compensation and benefits expenses502,997 294,709 
Accrued expenses and other current liabilities127,937
 89,812
Accrued expenses and other current liabilities142,014 79,690 
Due to employees49,683
 38,757
Deferred compensation due to employees9,920
 5,964
Taxes payable, current67,845
 40,860
Short-term debtShort-term debt16,018 — 
Income taxes payable, currentIncome taxes payable, current27,440 20,603 
Operating lease liabilities, currentOperating lease liabilities, current50,104 60,759 
Total current liabilities262,829
 180,967
Total current liabilities763,420 465,950 
Long-term debt25,031
 25,033
Long-term debt30,234 25,038 
Taxes payable, noncurrent43,685
 59,874
Income taxes payable, noncurrentIncome taxes payable, noncurrent42,454 43,448 
Operating lease liabilities, noncurrentOperating lease liabilities, noncurrent142,802 180,604 
Other noncurrent liabilities17,661
 9,435
Other noncurrent liabilities48,480 23,274 
Total liabilities349,206
 275,309
Total liabilities1,027,390 738,314 
Commitments and contingencies (Note 14)

 

Commitments and contingencies (Note 15)Commitments and contingencies (Note 15)00
Stockholders’ equity 
  
Stockholders’ equity  
Common stock, $0.001 par value; 160,000,000 authorized; 54,099,927 and 53,003,420 shares issued, 54,080,192 and 52,983,685 shares outstanding at December 31, 2018 and December 31, 2017, respectively54
 53
Common stock, $0.001 par value; 160,000 authorized; 56,868 and 56,128 shares issued, 56,849 and 56,108 shares outstanding at December 31, 2021 and December 31, 2020, respectivelyCommon stock, $0.001 par value; 160,000 authorized; 56,868 and 56,128 shares issued, 56,849 and 56,108 shares outstanding at December 31, 2021 and December 31, 2020, respectively57 56 
Additional paid-in capital544,700
 473,874
Additional paid-in capital711,912 660,771 
Retained earnings759,533
 518,820
Retained earnings1,829,532 1,347,880 
Treasury stock(177) (177)Treasury stock(177)(177)
Accumulated other comprehensive loss(41,514) (17,623)Accumulated other comprehensive loss(54,207)(25,512)
Total stockholders’ equity1,262,596
 974,947
Total EPAM Systems Inc. stockholders’ equityTotal EPAM Systems Inc. stockholders’ equity2,487,117 1,983,018 
Noncontrolling interest in consolidated subsidiariesNoncontrolling interest in consolidated subsidiaries8,720 — 
Total equityTotal equity$2,495,837 $1,983,018 
Total liabilities and stockholders’ equity$1,611,802
 $1,250,256
Total liabilities and stockholders’ equity$3,523,227 $2,721,332 
The accompanying notes are an integral part of the consolidated financial statements.

F-6

Table of Contents

EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
(Inthousands, except per share data)
For the Years Ended December 31, For the Years Ended December 31,
2018 2017 2016 202120202019
Revenues$1,842,912
 $1,450,448
 $1,160,132
Revenues$3,758,144 $2,659,478 $2,293,798 
Operating expenses:     
Operating expenses: 
Cost of revenues (exclusive of depreciation and amortization)1,186,921
 921,352
 737,186
Cost of revenues (exclusive of depreciation and amortization)2,483,697 1,732,522 1,488,198 
Selling, general and administrative expenses373,587
 327,588
 265,863
Selling, general and administrative expenses648,736 484,758 457,433 
Depreciation and amortization expense36,640
 28,562
 23,387
Depreciation and amortization expense83,395 62,874 45,317 
Income from operations245,764
 172,946
 133,696
Income from operations542,316 379,324 302,850 
Interest and other income, net3,522
 4,601
 4,848
Foreign exchange gain/(loss)487
 (3,242) (12,078)
Interest and other (loss)/income, netInterest and other (loss)/income, net(1,727)3,822 8,725 
Foreign exchange lossForeign exchange loss(7,197)(4,667)(12,049)
Income before provision for income taxes249,773
 174,305
 126,466
Income before provision for income taxes533,392 378,479 299,526 
Provision for income taxes9,517
 101,545
 27,200
Provision for income taxes51,740 51,319 38,469 
Net income$240,256
 $72,760
 $99,266
Net income$481,652 $327,160 $261,057 
Foreign currency translation adjustments, net of tax(21,338) 20,065
 (2,538)
Unrealized loss on cash-flow hedging instruments, net of tax(2,553) 
 
Comprehensive income$216,365
 $92,825
 $96,728
     
Net income per share:     
Net income per share: 
Basic$4.48
 $1.40
 $1.97
Basic$8.52 $5.87 $4.77 
Diluted$4.24
 $1.32
 $1.87
Diluted$8.15 $5.60 $4.53 
Shares used in calculation of net income per share:     
Shares used in calculation of net income per share: 
Basic53,623
 52,077
 50,309
Basic56,511 55,727 54,719 
Diluted56,673
 54,984
 53,215
Diluted59,064 58,446 57,668 
The accompanying notes are an integral part of the consolidated financial statements.




F-7

Table of Contents

EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Inthousands)
 For the Years Ended December 31,
 202120202019
Net income$481,652 $327,160 $261,057 
Other comprehensive (loss)/income:
Change in foreign currency translation adjustments, net of tax(24,579)4,498 6,295 
Change in unrealized (loss)/gain on hedging instruments, net of tax(7,059)2,350 3,845 
Defined benefit pension plans - actuarial gain/(loss), net of tax2,943 (986)— 
Other comprehensive (loss)/income(28,695)5,862 10,140 
Comprehensive income$452,957 $333,022 $271,197 
The accompanying notes are an integral part of the consolidated financial statements.
F-8

Table of Contents
EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN
STOCKHOLDERS’ EQUITY
(In thousands, except share data)thousands) 
  
 Common Stock Additional Paid-in Capital Retained Earnings Treasury Stock Accumulated Other Comprehensive (Loss)/ Income Total Stockholders’ Equity
 Shares Amount     Shares Amount    
Balance, January 1, 201650,166,537
 $49
 $303,363
 $345,054
 10,507
 $(93) $(35,150) $613,223
Forfeiture of stock issued in connection with acquisitions(9,228) 
 84
 
 9,228
 (84) 
 
Stock issued under the 2012 Non-Employee Directors Compensation Plan6,510
 
 
 
 
 
 
 
Restricted stock units vested, net of shares withheld for employee taxes38,064
 
 2,069
 
 
 
 
 2,069
Stock-based compensation expense
 
 46,100
 
 
 
 
 46,100
Proceeds from stock option exercises895,804
 1
 18,027
 
 
 
 
 18,028
Excess tax benefits
 
 5,264
 
 
 
 
 5,264
Foreign currency translation adjustments
 
 
 
 
 
 (2,538) (2,538)
Net income
 
 
 99,266
 
 
 
 99,266
Balance, December 31, 201651,097,687
 $50
 $374,907
 $444,320
 19,735
 $(177) $(37,688) $781,412
Restricted stock units vested140,043
 
 
 
 
 
 
 
Restricted stock units withheld for employee taxes(43,479) 
 (3,300) 
 
 
 
 (3,300)
Stock-based compensation expense
 
 48,173
 
 
 
 
 48,173
Proceeds from stock option exercises1,789,434
 3
 54,094
 
 
 
 
 54,097
Foreign currency translation adjustments
 
 
 
 
 
 20,065
 20,065
Cumulative effect of the adoption of ASU 2016-09
 
 
 1,740
 
 
 
 1,740
Net income
 
 
 72,760
 
 
 
 72,760
Balance, December 31, 201752,983,685
 $53
 $473,874
 $518,820
 19,735
 $(177) $(17,623) $974,947







EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN
STOCKHOLDERS’ EQUITY
(Continued)
(In thousands, except share data) 
Common StockAdditional Paid-in CapitalRetained EarningsTreasury StockAccumulated Other Comprehensive (Loss)/ IncomeNon-controlling interestTotal Stockholders’ Equity
 SharesAmountSharesAmount
Common Stock Additional Paid-in Capital Retained Earnings Treasury Stock Accumulated Other Comprehensive (Loss)/ Income Total Stockholders’ Equity
Shares Amount     Shares Amount    
Balance, December 31, 201752,983,685
 $53
 $473,874
 $518,820
 19,735
 $(177) $(17,623) $974,947
Balance, January 1, 2019Balance, January 1, 201954,080 $54 $544,700 $759,533 20 $(177)$(41,514)$ $1,262,596 
Restricted stock issued in connection with acquisitions (Note 2)Restricted stock issued in connection with acquisitions (Note 2)19 — — — — — — — — 
Restricted stock units vested222,675
 
 
 
 
 
 
 
Restricted stock units vested285 — — — — — — — — 
Restricted stock units withheld for employee taxes(71,334) 
 (8,131) 
 
 
 
 (8,131)Restricted stock units withheld for employee taxes(95)— (15,951)— — — — — (15,951)
Stock-based compensation expense
 
 44,279
 
 
 
 
 44,279
Stock-based compensation expense— — 41,256 — — — — — 41,256 
Proceeds from stock option exercises945,166
 1
 34,678
 
 
 
 
 34,679
Proceeds from stock option exercises899 37,046 — — — — — 37,047 
Foreign currency translation adjustments, net of tax
 
 
 
 
 
 (21,338) (21,338)
Change in unrealized gains and losses on cash flow hedges, net of tax

 
 
 
 
 
 (2,553) (2,553)
Cumulative effect of the adoption of ASU 2014-09
 
 
 457
 
 
 
 457
Other comprehensive incomeOther comprehensive income— — — — — — 10,140 — 10,140 
Net income
 
 
 240,256
 
 
 
 240,256
Net income— — — 261,057 — — — — 261,057 
Balance, December 31, 201854,080,192
 $54
 $544,700
 $759,533
 19,735
 $(177) $(41,514) $1,262,596
Balance, December 31, 2019Balance, December 31, 201955,188 $55 $607,051 $1,020,590 20 $(177)$(31,374)$ $1,596,145 
Cumulative effect of the adoption of ASU 2016-13Cumulative effect of the adoption of ASU 2016-13— — — 130 — — — — 130 
Adjusted Balance, December 31, 2019Adjusted Balance, December 31, 201955,188 55 607,051 1,020,720 20 (177)(31,374) 1,596,275 
Restricted stock units vestedRestricted stock units vested327 — — — — — — — — 
Restricted stock units withheld for employee taxesRestricted stock units withheld for employee taxes(106)— (20,190)— — — — — (20,190)
Stock-based compensation expenseStock-based compensation expense— — 47,462 — — — — — 47,462 
Proceeds from stock option exercisesProceeds from stock option exercises699 26,448 — — — — — 26,449 
Other comprehensive incomeOther comprehensive income— — — — — — 5,862 — 5,862 
Net incomeNet income— — — 327,160 — — — — 327,160 
Balance, December 31, 2020Balance, December 31, 202056,108 56 660,771 1,347,880 20 (177)(25,512) 1,983,018 
Restricted stock units vestedRestricted stock units vested311 — — — — — — — — 
Restricted stock units withheld for employee taxesRestricted stock units withheld for employee taxes(106)— (45,070)— — — — — (45,070)
Stock-based compensation expenseStock-based compensation expense— — 68,709 — — — — — 68,709 
Proceeds from stock option exercisesProceeds from stock option exercises536 26,312 — — — — — 26,313 
Employee Stock Purchase PlanEmployee Stock Purchase Plan— — 1,190 — — — — — 1,190 
Other comprehensive lossOther comprehensive loss— — — — — — (28,695)— (28,695)
Noncontrolling interests acquired in business combinationNoncontrolling interests acquired in business combination— — — — — — — 10,469 10,469 
Purchase of noncontrolling interestPurchase of noncontrolling interest— — — — — — — (1,749)(1,749)
Net incomeNet income— — — 481,652 — — — — 481,652 
Balance, December 31, 2021Balance, December 31, 202156,849 $57 $711,912 $1,829,532 20 $(177)$(54,207)$8,720 $2,495,837 
The accompanying notes are an integral part of the consolidated financial statements.

F-9


Table of Contents
EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
For the Years Ended December 31,
 202120202019
Cash flows from operating activities:
Net income$481,652 $327,160 $261,057 
Adjustments to reconcile net income to net cash provided by operating activities:  
Depreciation and amortization expense83,401 62,874 45,317 
Operating lease right-of-use assets amortization expense61,750 66,369 55,859 
Bad debt expense2,488 2,253 1,619 
Deferred taxes(46,900)(19,994)(7,764)
Stock-based compensation expense111,655 75,238 72,036 
Other13,137 6,796 4,764 
Changes in assets and liabilities:  
Trade receivables and contract assets(211,684)4,235 (87,174)
Prepaid and other assets(16,182)6,983 (7,155)
Accounts payable(2,403)2,428 (1,685)
Accrued expenses and other liabilities155,657 60,133 27,125 
Operating lease liabilities(63,812)(64,453)(53,419)
Income taxes payable3,568 14,385 (23,127)
Net cash provided by operating activities572,327 544,407 287,453 
Cash flows from investing activities:  
Purchases of property and equipment(111,501)(68,793)(99,308)
Purchases of short-term investments— (120,000)— 
Proceeds from short-term investments60,000 60,009 — 
Acquisition of businesses, net of cash acquired(314,958)(18,888)(39,322)
Purchases of non-marketable securities(2,544)(20,500)(5,000)
Other investing activities, net79 1,018 (1,739)
Net cash used in investing activities(368,924)(167,154)(145,369)
Cash flows from financing activities:  
Proceeds from stock option exercises26,286 26,410 37,003 
Payments of withholding taxes related to net share settlements of restricted stock units(41,598)(20,132)(15,503)
Proceeds from debt31,109 — — 
Repayment of debt(31,054)(18)(9)
Payment of contingent consideration for previously acquired businesses(40,227)(7,004)(1,104)
Purchase of noncontrolling interest(1,749)— — 
Other financing activities, net(2,324)(21)(24)
Net cash (used in)/provided by financing activities(59,557)(765)20,363 
Effect of exchange rate changes on cash, cash equivalents and restricted cash(18,032)9,357 3,530 
Net increase in cash, cash equivalents and restricted cash125,814 385,845 165,977 
Cash, cash equivalents and restricted cash, beginning of period1,323,533 937,688 771,711 
Cash, cash equivalents and restricted cash, end of period$1,449,347 $1,323,533 $937,688 





F-10

                                                                                                            For the Years Ended December 31,
  2018 2017 2016
Cash flows from operating activities:      
Net income $240,256
 $72,760
 $99,266
Adjustments to reconcile net income to net cash provided by operating activities:  
  
  
Depreciation and amortization expense 36,640
 28,562
 23,387
Bad debt expense 848
 51
 1,539
Deferred taxes (48,000) 12,561
 (3,304)
Stock-based compensation expense 59,188
 52,407
 49,244
Excess tax benefit on stock-based compensation plans 
 
 (5,264)
Other (1,712) (4,010) 6,228
Changes in operating assets and liabilities:  
  
  
(Increase)/decrease in operating assets:  
  
  
Accounts receivable (31,005) (58,745) (30,612)
Unbilled revenues (15,897) (22,743) 34,777
Prepaid expenses and other assets (8,432) 1,061
 (2,391)
Increase/(decrease) in operating liabilities:      
Accounts payable (772) 1,221
 741
Accrued expenses and other liabilities 41,929
 37,282
 (13,926)
Due to employees 1,535
 1,933
 5,261
Taxes payable 17,640
 70,480
 2,271
Net cash provided by operating activities 292,218
 192,820
 167,217
Cash flows from investing activities:  
  
  
Purchases of property and equipment (37,574) (29,806) (29,317)
Decrease in time deposits, net 418
 
 29,597
Acquisition of businesses, net of cash acquired (Note 2) (74,268) (6,810) (5,500)
Other investing activities, net (699) 465
 (4,100)
Net cash used in investing activities (112,123) (36,151) (9,320)
Cash flows from financing activities:  
  
  
Proceeds from stock option exercises 34,845
 53,984
 17,996
Excess tax benefit on stock-based compensation plans 
 
 5,264
Payments of withholding taxes related to net share settlements of restricted stock
units
 (7,747) (3,194) (539)
Proceeds from debt (Note 8) 
 25,000
 20,000
Repayment of debt (Note 8) (3,494) (25,103) (30,129)
Acquisition of businesses, deferred consideration (Note 2) 
 
 (2,260)
Other financing activities, net (603) (941) 135
Net cash provided by financing activities 23,001
 49,746
 10,467
Effect of exchange rate changes on cash, cash equivalents and restricted cash (14,240) 11,776
 (3,387)
Net increase in cash, cash equivalents and restricted cash 188,856
 218,191
 164,977
Cash, cash equivalents and restricted cash, beginning of period 582,855
 364,664
 199,687
Cash, cash equivalents and restricted cash, end of period $771,711
 $582,855
 $364,664
Table of Contents






EPAM SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Continued)
For the Years Ended December 31,
 For the Years Ended December 31,202120202019
 2018 2017 2016
Supplemental disclosures of cash flow information:      
Supplemental disclosure of cash flow information:Supplemental disclosure of cash flow information:
Cash paid during the year for:      Cash paid during the year for:
Income taxes $40,437
 $26,669
 $37,488
Bank interest $777
 $548
 $566
Income taxes, net of refunds Income taxes, net of refunds$87,317 $54,520 $65,306 
Interest Interest$413 $425 $832 
Supplemental disclosure of non-cash investing and financing activities      Supplemental disclosure of non-cash investing and financing activities
Acquisition-date fair value of contingent consideration issued for acquisition of businesses $8,390
 $
 $
Acquisition-date fair value of contingent consideration issued for acquisition of businesses$57,249 $7,119 $3,876 
Capital expenditures incurred but not yet paidCapital expenditures incurred but not yet paid$7,738 $1,582 $16,921 
The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets:
 As of December 31, 2018 
As of
December 31,
2017
 
As of
December 31,
2016
As of December 31, 2021As of December 31, 2020As of December 31, 2019
Balance sheet classification      Balance sheet classification
Cash and cash equivalents $770,560
 $582,585
 $362,025
Cash and cash equivalents$1,446,625 $1,322,143 $936,552 
Restricted cash in Prepaid and other current assets 14
 91
 2,400
Restricted cash in Prepaid and other current assets495 106 — 
Restricted cash in Other noncurrent assets 1,137
 179
 239
Restricted cash in Other noncurrent assets2,227 1,284 1,136 
Total restricted cash 1,151
 270
 2,639
Total restricted cash2,722 1,390 1,136 
Total cash, cash equivalents and restricted cash $771,711
 $582,855
 $364,664
Total cash, cash equivalents and restricted cash$1,449,347 $1,323,533 $937,688 
The accompanying notes are an integral part of the consolidated financial statements.



F-11

Table of Contents
EPAM SYSTEMS, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Inthousands, except share and per share data)data and as otherwise disclosed)
1.BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
1.BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
EPAM Systems, Inc. (the “Company” or “EPAM”) is a leading global provider of digital platform engineering and software development services to customers located around the world, primarily in North America, Europe, Asia and Australia. OurAsia. The Company’s industry expertise includes financial services, travel and consumer, software and hi-tech, business information and media, life sciences and healthcare, as well as other industries in which we are continuously growing.emerging industries. The Company is incorporated in Delaware with headquarters in Newtown, PA.Pennsylvania.
Principles of Consolidation — The consolidated financial statements include the financial statements of EPAM and its subsidiaries. All intercompany balances and transactions have been eliminated.
Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions. These estimates and assumptions affect reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as revenues and expenses during the reporting period. The Company bases its estimates and judgments on historical experience, knowledge of current conditions and its beliefs of what could occur in the future, given available information. Actual results could differ from those estimates, and such differences may be material to the financial statements.
Cash and Cash Equivalents — Cash equivalents are short-term, highly liquid investments and deposits that are readily convertible into cash, with maturities of three months or less at the date acquired. Highly liquid investments with maturities greater than three months at the date acquired are reported separately from cash equivalents.
Accounts ReceivableTrade Receivables and Contract AssetsAccountsThe Company classifies its right to consideration in exchange for deliverables as either a trade receivable or a contract asset. A trade receivable is a right to consideration that is unconditional (i.e., only the passage of time is required before payment is due) regardless of whether the amounts have been billed. Trade receivables are stated net of allowance for doubtful accounts. Outstanding accounts receivabletrade receivables are reviewed periodically and allowances are provided when management believes it is probablefor the estimated amount of receivables that such balances willmay not be collected within a reasonable time.collected. The allowance for doubtful accounts is determined by evaluating the relative creditworthiness of each customer, historical collections experience and other information, including the aging of the receivables. Accounts receivable are generally written off when they are deemed uncollectible. Bad debts are recorded based on historical experience and management’s evaluation of accounts receivable.trade receivables. A contract asset is a right to consideration that is conditional upon factors other than the passage of time. Contract assets primarily relate to unbilled amounts on fixed-price contracts. Contract assets are recorded when services have been provided but the Company does not have an unconditional right to receive consideration. The Company recognizes an impairment loss when the contract carrying amount is greater than the remaining consideration receivable, less directly related costs to be incurred.
Property and Equipment — Property and equipment acquired in the ordinary course of the Company’s operations are stated at cost, net of accumulated depreciation. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets generally ranging from two to fifty years. Leasehold improvements are amortized on a straight-line basis over the shorter of the term of the lease or the estimated useful life of the improvement. Maintenance and repairs are expensed as incurred.
Business Combinations — The Company accounts for its business combinations using the acquisition accounting method which requires it to determineestimate the fair value of net assets acquired and the related goodwill and other intangible assets in accordance with the FASB ASC Topic 805, Business Combinations. The Company identifies and attributes fair values and estimated lives to the intangible assets acquired and allocates the total cost of an acquisition to the underlying net assets based on their respective estimated fair values. Determining the fair value ofidentifiable assets acquired and liabilities assumed, requires management’s judgmentincluding any contingent consideration, to properly allocate the purchase price to the individual assets acquired and involvesliabilities assumed in accordance with the useFinancial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 805, Business Combinations. The allocation of the purchase price utilizes significant estimates including projectionsin determining the fair values of identifiable assets acquired and liabilities assumed, especially with respect to intangible assets. The significant estimates and assumptions used include the timing and amount of forecasted revenues and cash flows, anticipated growth rates, customer attrition rates, the discount rate reflecting the risk inherent in future cash inflowsflows and outflows, discount rates, assetthe useful lives and market multiples.for finite-lived assets. There are different valuation models for each component, the selection of which requires considerable judgment. These determinations will affect the amount of amortization expense recognized in future periods. The Company bases its fair value estimates on assumptions it believes are reasonable, but recognizes that the assumptions are inherently uncertain. The acquired assets typically include customer relationships, software, trade names, non-competition agreements, and assembled workforce and as a result, a substantial portion of the purchase price is allocated to goodwill and other intangible assets.
If the initial accounting for the business combination has not been completed by the end of the reporting period in which the business combination occurs, provisional amounts are reported to present information about facts and circumstances that existed as of the acquisition date. Once the measurement period ends, which in no case extends beyond one year from the acquisition date, revisions to the accounting for the business combination are recorded in earnings.
F-12

Table of Contents

In some business combinations, the Company agrees to contingent consideration arrangements and the Company determines the fair value of the contingent consideration liabilities using Monte Carlo simulations (which involve a simulation of future revenues and earnings during the earn-out period using management’s best estimates) or probability-weighted expected return methods. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earn-out criteria would result in a change in the fair value of contingent consideration. Such changes, if any, are recorded within Interest and other income, net in the Company’s consolidated statements of income.
All acquisition-related costs, other than the costs to issue debt or equity securities, are accounted for as expenses in the period in which they are incurred. Changes in the fair value of contingent consideration arrangements that are not measurement period adjustments are recognized in earnings.
The acquired assets typically include customer relationships, trade names, non-competition agreements, and assembled workforce and, as a result, a substantial portion of the purchase price is allocated to goodwill and other intangible assets.
Long-Lived Assets — Long-lived assets, such as property and equipment and finite-lived intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. When the carrying value of an asset is more than the sum of the undiscounted expected future cash flows, an impairment is recognized. An impairment loss is measured as the excess of the asset’s carrying amount over its fair value. Intangible assets that have finite useful lives are amortized over their estimated useful lives on a straight-line basis.

Goodwill and Other Indefinite-Lived Intangible Assets — Goodwill and other intangible assets that have indefinite useful lives are accounted for in accordance with the FASB ASC 350, Intangibles — Goodwill and Other. The Company conducts its evaluation of goodwill impairment at the reporting unit level on an annual basis as of October 31st, and more frequently if events or circumstances indicate that the carrying value of a reporting unit exceeds its fair value. A reporting unit is an operating segment or one level below. The Company does not have intangible assets other than goodwill that have indefinite useful lives.
Derivative Financial Instruments — The Company enters into derivative financial instruments to manage exposure to fluctuations in certain foreign currencies. During 2018, for accounting purposes, these foreign currency forward contracts became designated as hedges, as defined under FASB ASC Topic 815, Derivatives and Hedging. The Company measures these foreign currency derivative contracts at fair value on a recurring basis utilizing Level 2 inputs.inputs and recognizes them as either assets or liabilities in its consolidated balance sheets. The Company records changes in the fair value of these hedges in accumulated other comprehensive income/(loss) until the forecasted transaction occurs. When the forecasted transaction occurs, the Company reclassifies the related gain or loss on the cash flow hedge to cost of revenues (exclusive of depreciation and amortization). In the event the underlying forecasted transaction does not occur, or it becomes probable that it will not occur, the Company reclassifies the gain or loss on the underlying hedge from accumulated other comprehensive income/(loss) into income. If the Company does not elect hedge accounting, or the contract does not qualify for hedge accounting treatment, the changes in fair value from period to period are recorded in income. The cash flow impact of derivatives identified as hedging instruments is reflected as cash flows from operating activities. The cash flow impact of derivatives not identified as hedging instruments is reflected as cash flows from investing activities.
Fair Value of Financial Instruments — The Company makes assumptions about fair values of its financial assets and liabilities in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”)FASB ASC Topic 820, Fair Value Measurement, and utilizes the following fair value hierarchy in determining inputs used for valuation:
Level 1 — Quoted prices for identical assets or liabilities in active markets.
Level 2 — Inputs other than quoted prices within Level 1 that are observable either directly or indirectly, including quoted prices in markets that are not active, quoted prices in active markets for similar assets or liabilities, and observable inputs other than quoted prices such as interest rates or yield curves.
Level 3 — Unobservable inputs reflecting management’s view about the assumptions that market participants would use in pricing the asset or liability.
Where the fair values of financial assets and liabilities recorded in the consolidated balance sheets cannot be derived from an active market, they are determined using a variety of valuation techniques. These valuation techniques include a net present value technique, comparison to similar instruments with market observable inputs, option pricing models and other relevant valuation models. To the extent possible, observable market data is used as inputs into these models but when it is not feasible, a degree of judgment is required to establish fair values.
Changes in the fair value of liabilities could cause a material impact to, and volatility in the Company’s operating results. See Note 114 “Fair Value Measurements.”

F-13

Accumulated Other Comprehensive Loss — Accumulated other comprehensive loss (“AOCI”) consists of changes in the cumulative foreign currency translation adjustments and actuarial gains and losses on defined benefit pension plans. In addition, the Company enters into foreign currency exchange contracts, which are designated as cash flow hedges in accordance with FASB ASC Topic 815, Derivatives and Hedging. Changes in the fair values of these foreign currency exchange contracts are recognized in AOCI on the Company's consolidated balance sheets until the settlement of those contracts.
Revenue Recognition — Effective January 1, 2018, theThe Company adopted the new Accounting Standard Update (“ASU”) No. 2014-09, Revenue from Contractsrecognizes revenue in accordance with Customers (Topic 606) as amended using the modified retrospective method. The standard effectively replaced previously existing revenue recognition guidance (Topic 605) andASC 606 which requires entities to recognize revenue to depict the transfer of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services as well as requires additional disclosure about the nature, amount, timing and uncertainty of revenues and cash flows arising from customer contracts, including significant judgments and changes in judgments.

The Company applied a practical expedient to aggregate the effect of all contract modifications that occurred before the adoption date. The following table summarizes the cumulative effect of adopting Topic 606 using the modified retrospective method of adoption as of January 1, 2018:
 Balance as of
December 31, 2017
 Adjustments
Due to Topic 606
 Balance as of
January 1, 2018
Balance Sheet     
Assets     
   Unbilled revenues$86,500
 $(78) $86,422
   Deferred tax assets$24,974
 $(173) $24,801
Liabilities     
    Accrued expenses and other current liabilities$89,812
 $(708) $89,104
Stockholders’ equity     
    Retained earnings$518,820
 $457
 $519,277
The following tables summarize the impacts of changes in accounting policies after adoption of Topic 606 on the Company’s consolidated financial statements for the year ended December 31, 2018, which primarily resulted from deferring the timing of revenue recognition for contracts that were previously recognized on a cash basis and recognizing revenues from certain license agreements at a point-in-time rather than over time:
 As of December 31, 2018
 As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower)
Balance Sheet     
Liabilities     
  Accrued expenses and other current liabilities$127,937
 $127,690
 $247
Other noncurrent liabilities$17,661
 $17,716
 $(55)
Stockholders’ equity     
  Retained earnings$759,533
 $759,725
 $(192)
 Year Ended December 31, 2018
 As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower)
Income Statement     
Revenues$1,842,912
 $1,843,159
 $(247)
Income from operations$245,764
 $246,011
 $(247)
Provision for income taxes

$9,517
 $9,572
 $(55)
Net income$240,256
 $240,448
 $(192)
For the year ended December 31, 2018
The Company recognizes revenues when control of goods or services is passed to a customer in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Such control may be transferred over time or at a point in time depending on satisfaction of obligations stipulated by the contract. Consideration expected to be received may consist of both fixed and variable components and is allocated to each separately identifiable performance obligation based on the performance obligation’s relative standalone selling price. Variable consideration usually takes the form of volume-based discounts, service level credits, price concessions or incentives. Determining the estimated amount of such variable consideration involves assumptions and judgment that can have an impact on the amount of revenues reported.

The Company derives revenues from a variety of service arrangements, which have been evolving to provide more customized and integrated solutions to customers by combining software engineering with customer experience design, business consulting and technology innovation services. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements. The Company generates the majority of its revenues under time-and-material contracts, which are billed using hourly, daily or monthly rates to determine the amounts to be charged directly to the customer. EPAMThe Company applies a practical expedient and revenues related to time-and-material contracts are recognized based on the right to invoice for services performed.
Fixed-price contracts include maintenance and support arrangements which may exceed one year in duration. Maintenance and support arrangements generally relate to the provision of ongoing services and revenues for such contracts are recognized ratably over the expected service period. Fixed-price contracts also include application development arrangements, where progress towards satisfaction of the performance obligation is measured using input or output methods and input methods are used only when there is a direct correlation between hours incurred and the end product delivered. Assumptions, risks and uncertainties inherent in the estimates used to measure progress could affect the amount of revenues, receivables and deferred revenues at each reporting period.
Revenues from licenses which have significant stand-alone functionality are recognized at a point in time when control of the license is transferred to the customer. Revenues from licenses which do not have stand-alone functionality are recognized over time.
If there is an uncertainty about the receipt of payment for the services, revenue recognition is deferred until the uncertainty is sufficiently resolved. The Company applies a practical expedient and does not assess the existence of a significant financing component if the period between transfer of the service to a customer and when the customer pays for that service is one year or less.
The Company reports gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidated statements of income and comprehensive income.
For the years ended December 31, 2017 and 2016
The Company recognized revenue when the following criteria were met: (1) persuasive evidence of an arrangement existed; (2) delivery had occurred; (3) the sales price was fixed or determinable; and (4) collectability was reasonably assured. Determining whether and when some of these criteria had been satisfied often involved assumptions and judgments that could have had a significant impact on the timing and amount of revenue reported.
The Company derived its revenues from a variety of service offerings, which represent specific competencies of its IT professionals. Contracts for these services have different terms and conditions based on the scope, deliverables, and complexity of the engagement, which require management to make judgments and estimates in determining the appropriate revenue recognition. Fees for these contracts may have been in the form of time-and-materials or fixed-price arrangements. If there was uncertainty about the project completion or receipt of payment for the services, revenue was deferred until the uncertainty was sufficiently resolved. At the time revenue was recognized, the Company provided for any contractual deductions and reduced revenue accordingly. The Company reported gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidated statements of income and comprehensive income.
The Company deferred amounts billed to its customers for revenues not yet earned. Such amounts were anticipated to be recorded as revenues when services were performed in subsequent periods. Unbilled revenue was recorded when services have been provided but billed subsequent to the period end in accordance with the contract terms.
The majority of the Company’s revenues (90.3% of revenues in 2017 and 88.2% in 2016) were generated under time-and-material contracts whereby revenues were recognized as services were performed with the corresponding cost of providing those services reflected as cost of revenues. The majority of such revenues were billed using hourly, daily or monthly rates as actual time was incurred on the project. Revenues from fixed-price contracts (8.3% of revenues in 2017 and 10.4% in 2016) included fixed-price maintenance and support arrangements, which may have exceeded one year in duration and revenues from maintenance and support arrangements were generally recognized ratably over the expected service period. Fixed-price contracts also included application development arrangements and revenues from these arrangements were primarily determined using the proportional performance method. In cases where final acceptance of the product, system, or solution was specified by the customer, and the acceptance criteria were not objectively determinable to have been met as the services were provided, revenues were deferred until all acceptance criteria had been met. In the absence of a sufficient basis to measure progress towards completion, revenue was recognized upon receipt of final acceptance from the customer. Assumptions, risks and uncertainties inherent in the estimates used in the application of the proportional performance method of accounting could have affected the amount of revenues, receivables and deferred revenues at each reporting period.

Cost of Revenues (Exclusive of Depreciation and Amortization) — Consists principally of salaries, bonuses, fringe benefits, stock-based compensation, expense, project related travel costs and fees for subcontractors that are assigned to customer projects. Salaries and other compensation expenses of our revenue generatingthe Company’s delivery professionals are reported as cost of revenues regardless of whether the employees are actually performing clientcustomer services during a given period.
Selling, General and Administrative Expenses — Consists of expenses associated with promoting and selling ourthe Company’s services and general and administrative functions of the business. These expenses include the costs of salaries, bonuses, fringe benefits, stock-based compensation, expense, severance, bad debt, travel, legal and auditaccounting services, insurance, facilities including operating leases, and lease exit costs, advertising and other promotional activities. In addition, we pay a membership feeactivities, and certain non-income taxes.

F-14

Table of 1% of revenues generated in Belarus to the administrative organization of the Belarus High-Technologies Park.Contents
Stock-Based Compensation — The Company recognizes the cost of its equity settled stock-based incentive awards based on the fair value of the award at the date of grant, net of estimated forfeitures. The grant date fair value for stock options and stock purchase rights under the Employee Stock Purchase Plan (”ESPP”) is estimated using the Black-Scholes option-pricing valuation model. The cost is generally expensed evenly over the service period.period, unless otherwise specified by the award agreement. The service period is the period over which the employee performs the related services, which is normally the same as the vesting period. Equity-based awards that do not require future service are expensed immediately. For awards with performance conditions, the amount of compensation cost we recognize over the requisite service period is based on the actual or expected achievement of the performance condition. Quarterly, the forfeiture assumption is adjusted to reflect actual forfeitures and such adjustment may affect the timing of recognition of the total amount of expense recognized over the vesting period. Equity-based awards that do not require future service are expensed immediately. Stock-based awards that do not meet the criteria for equity classification are recorded as liabilities and adjusted to fair value at the end of each reporting period.
Income Taxes — The provision for income taxes includes federal, state, local and foreign taxes. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be reversed. Changes to enacted tax rates would result in either increases or decreases in the provision for income taxes in the period of changes.
The realizability of deferred tax assets is primarily dependent on future earnings. The Company evaluates the realizability of deferred tax assets and recognizes a valuation allowance when it is more likely than not that all, or a portion of, deferred tax assets will not be realized. A reduction in estimated forecasted results may require that we record valuation allowances against deferred tax assets. Once a valuation allowance has been established, it will be maintained until there is sufficient positive evidence to conclude that it is more likely than not that the deferred tax assets will be realized. A pattern of sustained profitability will generally be considered as sufficient positive evidence to reverse a valuation allowance. If the allowance is reversed in a future period, the income tax provision will be correspondingly reduced. Accordingly, the increase and decrease of valuation allowances could have a significant negative or positive impact on future earnings.
On December 22, 2017, theThe United States enacted the Tax Cuts and Jobs Act (“U.S. Tax Act”), which subjects a U.S. shareholdercorporations to taxes on Global Intangible Low-Taxed Income (“GILTI”) earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to GILTI in the year the tax is incurred. During the year ended December 31, 2018, the Company elected to provide for the tax expense related to GILTI in the year the tax is incurred. This election did not have a material impact on the financial statements for the year ended December 31, 2018.
Earnings per Share (“EPS”) — Basic EPS is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period, increased by the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, unvested restricted stock, and unvested restricted stock units (“RSUs”). and the stock to be issued under the ESPP. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method.
Foreign Currency Translation — Assets and liabilities of consolidated foreign subsidiaries whose functional currency is not the U.S. dollar are translated into U.S. dollars at period-end exchange rates and revenues and expenses are translated into U.S. dollars at daily exchange rates. The adjustment resulting from translating the financial statements of such foreign subsidiaries into U.S. dollars is reflected as a cumulative translation adjustment and reported as a component of accumulated other comprehensive income/(loss).
For consolidated foreign subsidiaries whose functional currency is not the U.S. dollar,local currency, transactions and balances denominated in the local currency are foreign currency transactions. Foreign currency transactions and balances related to non-monetary assets and liabilities are remeasured to the functional currency of the subsidiary at historical exchange rates while monetary assets and liabilities are remeasured to the functional currency of the subsidiary at period-end exchange rates. Foreign currency exchange gains or losses from remeasurement are included in income in the period in which they occur.

Risks and Uncertainties — As a result of its global operations, the Company may be subject to certain inherent risks. 
Concentration of Credit — Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of cash, and cash equivalents, accounts receivableshort-term investments and unbilled revenues.trade receivables. The Company maintains cash, and cash equivalents and short-term depositsinvestments with financial institutions. The Company determined that the Company’sbelieves its credit policies reflect normal industry terms and business risk and there is no expectation of non-performance by the counterparties.
We have
F-15

Table of Contents
The Company has cash in banks in countries, such asincluding Russia, Belarus Russia,and Ukraine, Kazakhstan and Armenia, where the banking sector remains subject to periodic instability, banking and other financial systems are less developed and regulated than in somegenerally do not meet the banking standards of more developed markets, and bank deposits made by corporate entities there are not insured. As of December 31, 2018, $179,4782021, the Company had $232.6 million of total cash was keptand cash equivalents in banks in these countries,Russia, Belarus and Ukraine, representing 16.1% of the Company’s total cash and cash equivalents. The Company places its cash and cash equivalents with financial institutions considered stable in the region, limits the amount of credit exposure with any one financial institution and conducts ongoing evaluations of the credit worthiness of the financial institutions with which $119,726 was held in Belarus. In this region, and particularly in Belarus, ait does business. A banking crisis, bankruptcy or insolvency of banks that process or hold ourthe Company’s funds, or sanctions may result in the loss of our deposits or adversely affect ourthe Company’s ability to complete banking transactions, in these countries, which could adversely affect ourthe Company’s business and financial condition. Cash in these countries is used for the operational needs of the local entities and cash balances change with the expected operating needs of these entities. The Company regularly monitors cash held in these countries and, to the extent the cash held exceeds amounts required to support its operations in these countries, the Company distributes the excess funds into markets with more developed banking sectors.
Unbilled revenues and accounts receivableTrade receivables are generally dispersed across many customers operating in different industries; therefore, concentration of credit risk is limited. Historically, credit losses and write-offs of trade receivables have not been material to the consolidated financial statements. If any of our customers enter bankruptcy protection or otherwise take steps to alleviate their financial distress, the Company’s customers in proportion to their revenues. There were no customers individually exceeding 10%credit losses and write-offs of our unbilled revenues astrade receivables could increase, which would negatively impact its results of December 31, 2018. As of December 31, 2017, unbilled revenues from one customer exceeded 10% and accounted for 13.0% of our total unbilled revenues. There were no customers individually exceeding 10% of our accounts receivable as of December 31, 2018 and 2017.operations.
Foreign currency risk — The Company’s global operations are conducted predominantly in U.S. dollars. Other than U.S. dollars, the Company generates a significant portion of revenues in various currencies, principally, euros, British pounds, Canadian dollars,Russian rubles, Swiss francs, and Russian rublesCanadian dollars and incurs expenditures principally in Hungarian forints, Russian rubles, Polish zlotys, euros, Swiss francs, Hungarian forints, British pounds, Indian rupees, and ChinaChinese yuan renminbi associated with the locations of its delivery centers.and Mexican pesos.
The Company’s international operations expose it to foreign currency exchange rate changes that could impact translations of foreign denominated assets and liabilities into U.S. dollars and future earnings and cash flows from transactions denominated in different currencies. The Company is exposed to fluctuations in foreign currency exchange rates primarily related to accounts receivable and unbilled revenuestrade receivables from sales in foreign currencies and cash outflows for expenditures in foreign currencies. The Company’s results of operations, primarily revenues and expenses denominated in foreign currencies, can be affected if any of the currencies, which we useare used materially in ourthe Company’s business, appreciate or depreciate against the U.S. dollar. The Company has a hedging program whereby it entered into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Russian ruble, Polish zloty, and Indian rupee and Hungarian forint transactions.
Interest rate risk — The Company’s exposure to market risk is influenced primarily by the changes in interest rates received on cash and cash equivalentsequivalent deposits and short-term investments and paid on any outstanding balance on the Company’s revolving line of credit,borrowings, mainly under the 2021 Credit Facility, which is subject to variousa variety of rates depending on the type and timing of funds borrowed (See Note 8 “Long-Term Debt”9 “Debt”). The Company does not use derivative financial instrumentsbelieve it is exposed to hedge the risk ofmaterial direct risks associated with changes in interest rate volatility.rates related to these deposits and borrowings.
Adoption of New Accounting Standards
Unless otherwise discussed below, the adoption of new accounting standards did not have a material impact on the Company’s consolidated financial position, results of operations, and cash flows.
Revenue RecognitionBusiness Combinations - In October 2021, the FASB issued Accounting Standards Update (“ASU”) 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires an acquirer in a business combination to recognize and measure contract assets and contract liabilities in accordance with ASC Topic 606. ASU 2021-08 is effective for fiscal years beginning after December 15, 2022 and early adoption is permitted, including adoption in an interim period. An entity that adopts in an interim period should apply the amendments retrospectively to all business combinations for which the acquisition date occurs on or after the beginning of the fiscal year that includes the interim period of early application. The Company early adopted this guidance in the fourth quarter of 2021, retrospectively to January 1, 2021. The adoption did not have a material impact on the previously reported unaudited interim condensed consolidated financial statements.

F-16

Measurement of Credit Losses on Financial InstrumentsAs discussed above,In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.
The amendments in this update changed how companies measure and recognize credit impairment for many financial assets. The new credit loss model requires companies to immediately recognize an estimate of credit losses expected to occur over the remaining life of the financial assets, including trade receivables, that are in the scope of the update. The update also made amendments to the current impairment model for held-to-maturity and available-for-sale debt securities and certain guarantees. The Company adopted Topic 326, effective January 1, 2018,2020, using a modified-retrospective approach through a cumulative effect adjustment to retained earnings as of the Company adoptedbeginning of the new accounting standard ASU 2014-09, Revenue from Contracts with Customers (Topic 606) as amended using the modified retrospective method.

Restricted cash and restricted cash equivalents — Effective January 1, 2018, the Company adopted ASU 2016-18, Statementperiod of Cash Flows (Topic 230): Restricted Cash which requires the Company to include in its cash and cash equivalents balances presented in the statements of cash flows amounts that are deemed to be restricted in nature.adoption. As a result of the adoption of Topic 326, the Company restatedrecorded an immaterial reduction to its consolidated statements of cash flowsallowance for all of the prior periods presented. The impact of adoption on the Company’s consolidated statements of cash flows was as followsdoubtful accounts for the year ended December 31, 2017trade receivables and 2016:contract assets.
 Year Ended December 31, 2017
 As Originally Reported Restated Effect
Cash flows from operating activities:     
Changes in operating assets and liabilities:     
Prepaid expenses and other assets$3,605
 $1,061
 $(2,544)
Net cash provided by operating activities$195,364
 $192,820
 $(2,544)
Cash flows from investing activities:     
Decrease in restricted cash and time deposits, net$8
 $
 $(8)
Acquisition of businesses, net of cash acquired$(6,840) $(6,810) $30
Net cash used in investing activities$(36,173) $(36,151) $22
Effect of exchange rate changes on cash, cash equivalents, and restricted cash$11,623
 $11,776
 $153
Net increase in cash, cash equivalents and restricted cash$220,560
 $218,191
 $(2,369)
Cash, cash equivalents and restricted cash, beginning of period362,025
 364,664
 2,639
Cash, cash equivalents and restricted cash, end of period$582,585
 $582,855
 $270
 Year Ended December 31, 2016
 As Originally Reported Restated Effect
Cash flows from operating activities:     
Changes in operating assets and liabilities:     
Prepaid expenses and other assets$(4,791) $(2,391) $2,400
Net cash provided by operating activities$164,817
 $167,217
 $2,400
Cash flows from investing activities:     
Decrease in restricted cash and time deposits, net$29,595
 $29,597
 $2
Net cash used in investing activities$(9,322) $(9,320) $2
Effect of exchange rate changes on cash, cash equivalents, and restricted cash$(3,386) $(3,387) $(1)
Net increase in cash, cash equivalents and restricted cash$162,576
 $164,977
 $2,401
Cash, cash equivalents and restricted cash, beginning of period199,449
 199,687
 238
Cash, cash equivalents and restricted cash, end of period$362,025
 $364,664
 $2,639
Derivatives and Hedging — Effective April 1, 2018, the Company early-adopted ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new guidance is intended to simplify and amend hedge accounting and reporting to better align and disclose the economic results of an entity’s risk management activities in its financial statements. The ASU makes more financial and non-financial hedging strategies eligible for hedge accounting. It also changes how companies assess hedge effectiveness and amends the presentation and disclosure requirements by eliminating the requirement to separately measure and report hedge ineffectiveness and generally requires companies, for qualifying hedges, to present the entire change in the fair value of a hedging instrument in the same income statement line as the hedged item. The guidance also eases documentation and assessment requirements and modifies the accounting for components excluded from the assessment of hedge effectiveness. The guidance requires entities to apply the amended presentation and disclosure guidance prospectively as of the period of adoption. The adoption of this guidance did not have any effect on the consolidated financial results.

Pending Accounting Standards
From time to time, new accounting pronouncements are issued by the FASB or other standards-setting bodies that the Company will adopt according to the various timetables the FASB specifies. Unless otherwise discussed below, theThe Company believes the impact of recently issued standards that are not yet effective will not have a material impact on its consolidated financial position, results of operations and cash flows upon adoption.
Leases
2.ACQUISITIONS
test IO Effective January 1,On April 30, 2019, the Company will be required to adopt the new guidance of FASB ASC Topic 842, Leases (Topic 842)(with early adoption permitted effective January 1, 2018). This amendment supersedes previous accounting guidance (Topic 840) and requires all leases, with the exception of leases with a term of twelve months or less, to be recorded on the balance sheet as lease assets and lease liabilities. The standard allows for two methods of adoption to recognize and measure leases: retrospectively to each prior period presented in the financial statements with the cumulative effect of initially applying the guidance recognized at the beginning of the earliest comparative period presented or retrospectively at the beginning of the period of adoption with the cumulative effect of initially applying the guidance recognized at the beginning of the period in which the guidance is first applied. Both adoption methods include a number of optional practical expedients that entities may elect to apply. These practical expedients relate to the identification and classification of leases that commenced before the effective date, initial direct costs for leases that commenced before the effective date, and the ability to use hindsight in evaluating lessee options to extend or terminate a lease or to purchase the underlying asset. An entity that elects to apply the practical expedients will, in effect, continue to account for leases that commence before the effective date in accordance with previous GAAP unless the lease is modified, except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous GAAP. The transition guidance in Topic 842 also provides specific guidance for the amounts previously recognized in accordance with the business combinations guidance for leases.
The Company is near completion of implementing its transition plan, which includes making necessary changes to policies and processes, conducting detailed contract reviews, developing incremental borrowing rates, implementing a global lease accounting system, and assessing internal control impacts to comply with the new standard. The Company will adopt this standard effective January 1, 2019 using the method of adoption whereby the cumulative effect of adoption is recognized at the beginning of the period of adoption. The Company has elected to use the package of practical expedients permitted under the transition guidance within the new standard. The Company has also elected the practical expedient that permits it to not separate lease and non-lease components. While the Company is currently finalizing its assessment of the quantitative impact, the Company expects to recognize right-of-use assets ranging from $175,000 to $195,000 and lease liabilities ranging from $170,000 to $190,000 in its consolidated balance sheet upon adoption, principally related to its office space leases. EPAM does not expect the new guidance to have a material impact on its consolidated statement of income and comprehensive income or its consolidated statement of cash flows.
Measurement of Credit Losses on Financial Instruments — Effective January 1, 2020, the Company will be required to adopt the amended guidance of FASB ASC Topic 326, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, (with early adoption permitted effective January 1, 2019.) The amendments in this update change how companies measure and recognize credit impairment for many financial assets. The new expected credit loss model will require companies to immediately recognize an estimate of credit losses expected to occur over the remaining life of the financial assets (including trade receivables) that are in the scope of the update. The update also made amendments to the current impairment model for held-to-maturity and available-for-sale debt securities and certain guarantees. Entities are required to adopt the standard using a modified-retrospective approach through a cumulative effect adjustment to retained earnings as of the beginning of the period of adoption. The Company has not yet completed its assessment of the impact of the new guidance on its consolidated financial statements or concluded on when it will adopt the standard.
2.ACQUISITIONS
Continuum — On March 15, 2018, the Company acquired all of the outstanding equity of Continuum Innovation LLC together with its subsidiaries (“Continuum”) to enhance the Company’s consulting capabilities as well as its digital and service design practices. Continuum, headquartered in Boston with offices located in Milan, Seoul, and Shanghai, focuses on four practices including strategy, physical and digital design, technology and its Made Real Lab. The acquisition of Continuum added approximately 125 design consultants to the Company’s headcount.

In connection with the Continuum acquisition, the Company paid $52,515 as cash consideration, of which $5,410 was placed in escrow for a period of 9 to 15 months as security for the indemnification obligations of the sellers under the terms of the equity purchase agreement. Furthermore, subject to attainment of specified performance targets in the 12 months after the acquisition, the Company will make a cash earnout payment with a maximum amount payable of $3,135. The Company recorded $2,400 related to this earnout payment as contingent consideration as of the acquisition date. During the third quarter of 2018, the Company recorded a $900 reduction to the fair value of the contingent consideration , which is included in Interest and other income, net in the consolidated statement of income and comprehensive income (Note 11 “Fair Value Measurements”).
Think — On November 1, 2018, the Company acquired all100% of the equity interests of Think Limiteda crowdtesting company, test IO GmbH, and its subsidiary (“Think”test IO”), a digital transformation agency headquartered in London, UK. This acquisition is intended to strengthen EPAM’s digital and organizational consulting capabilities in the UK and Western European markets and enhance the Company’s global product and design offerings.
. In connection with the Thinktest IO acquisition, the Company paid $26,254$17.3 million of cash,cash.
PolSource — On April 2, 2021, the Company acquired 100% of which $3,237 was placed in escrowPolSource S.A. and its subsidiaries (“PolSource”), a Salesforce Platinum Consulting Partner with more than 350 experienced Salesforce specialists for a periodpurchase price of 12 months as security for$148.2 million including contingent consideration with an acquisition-date fair value of $35.4 million. At the indemnification obligationstime of the sellers underacquisition, the terms of the equity purchase agreement. Furthermore,Company committed to paying up to $45.0 million in contingent consideration, subject to attainment of specified performance targetscertain revenue, earnings and operational targets.
CORE — On July 23, 2021, the Company acquired 100% of CORE SE and its subsidiaries (“CORE”), a professional service provider specializing in IT strategy and technology-driven transformations with office locations in Europe and the 12 months afterMiddle East for a purchase price of $50.2 million including contingent consideration with an acquisition-date fair value of $4.0 million and deferred consideration of $7.8 million. The Company could pay up to $8.1 million in contingent consideration and the actual future payout is subject to attainment of certain revenue, earnings and operational targets.
Emakina — On November 3, 2021, the Company completed the acquisition of 98.69% of Emakina Group SA and its subsidiaries (“Emakina”), a group of independent digital agencies, for a purchase price of $143.4 million in cash. On November 30, 2021, the Company will make a cash earnout payment with a maximum amount payable of $8,156. The Company recorded $5,990 related to this earnout payment as contingent consideration ascompleted the acquisition of the acquisition date.remaining 1.31% of Emakina Group SA’s outstanding shares for a purchase price of $1.7 million in cash.

F-17

The following table summarizes the preliminary estimated fair values of the assets acquired and liabilities assumed atas of the datesdate of each respective acquisition asand updated for any changes as of December 31, 2018:
2021:
Continuum Think
As of
March 15, 2018
 
As of
November 1, 2018
test IOPolSourceCOREEmakina
Cash and cash equivalents$2,251
 $2,344
Cash and cash equivalents$663 $2,565 $11,283 $5,142 
Accounts receivable6,676
 2,259
Unbilled revenues2,463
 284
Trade receivables and contract assetsTrade receivables and contract assets621 12,734 10,266 34,389 
Prepaid and other current assets936
 609
Prepaid and other current assets150 814 5,562 3,109 
Goodwill26,617
 22,482
Goodwill11,926 125,339 23,234 136,614 
Intangible assets14,450
 6,882
Intangible assets6,219 15,790 8,368 30,488 
Property and equipment and other noncurrent assets8,902
 642
Property and equipment and other noncurrent assets305 461 4,585 17,059 
Total assets acquired$62,295
 $35,502
Total assets acquired$19,884 $157,703 $63,298 $226,801 
Accounts payable, accrued expenses and other current liabilities$2,745
 $2,205
Accounts payable, accrued expenses and other current liabilities$993 $5,337 $8,508 $36,042 
Due to employees1,001
 13
Long-term debt (Note 8)3,220
 
Short-term debtShort-term debt— — — 13,657 
Long-term debtLong-term debt— — — 8,874 
Operating lease liability, noncurrentOperating lease liability, noncurrent— 157 2,056 5,411 
Other noncurrent liabilities490
 1,040
Other noncurrent liabilities1,568 4,037 2,525 8,337 
Total liabilities assumed$7,456
 $3,258
Total liabilities assumed$2,561 $9,531 $13,089 $72,321 
Noncontrolling interest in consolidated subsidiariesNoncontrolling interest in consolidated subsidiaries— — — 10,469 
Net assets acquired$54,839
 $32,244
Net assets acquired$17,323 $148,172 $50,209 $144,011 
For the test IO acquisition, during 2019, the Company recorded purchase price adjustments, which increased the original purchase price and adjusted related working capital accounts increasing the original amount of the net assets acquired by $0.1 million. In addition, for the test IO acquisition, the Company reduced the value of acquired intangible assets by $0.1 million with a corresponding increase to goodwill. During the second quarter of 2020, the Company finalized the fair value of the assets acquired and liabilities assumed in the acquisition of test IO and recorded insignificant purchase price adjustments to various accounts with corresponding net decreases to goodwill of $0.2 million.
During the year ended December 31, 2021, the Company updated the valuation of the acquired assets and liabilities of PolSource resulting in a corresponding increase in the value of acquired goodwill of $11.8 million, primarily attributable to a $10.4 million increase in the fair value of contingent consideration. The aboveeffect of adjustments recorded during the three months ended December 31, 2021 that would have been recognized in a prior period if the adjustment to the preliminary amounts had been recognized as of the acquisition date of PolSource was not material. For the acquisition of PolSource, the estimated fair values of the assets acquired and liabilities assumed are provisional and based on the information that was available as of the acquisition date and updated for any changes as of December 31, 2018.date. The Company expects to complete the purchase price allocations as soon as practicable but no later than one year from the respective acquisition dates.date.
As ofDuring the year ended December 31, 2018,2021, the Company finalizedadjusted working capital accounts and recorded a purchase price adjustment for CORE, which increased the valuation of intangiblenet assets acquired by $2.2 million. The effect of adjustments recorded during the three months ended December 31, 2021 that would have been recognized in connection witha prior period if the adjustment to the preliminary amounts had been recognized as of the acquisition date of CORE was not material. For the acquisition of Continuum which resulted in an adjustmentCORE, he estimated fair values of initially recognized intangiblethe assets acquired and their useful livesliabilities assumed are provisional and based on the information that was available as well as in recognition of an additional intangible asset in the form of a favorable lease.acquisition date. The Company removed a liability associated with an initially recognized unfavorable lease, whichexpects to complete the purchase price allocations as soon as practicable but no later than one year from the acquisition date.
For the acquisition of Emakina, the estimated fair values of the assets acquired, liabilities assumed and noncontrolling interest are provisional and based on the information that was classifiedavailable as other noncurrent liabilities.of the acquisition date. The Company also finalized a working capital adjustment that resulted in a partial releaseexpects to complete the purchase price allocations as soon as practicable but no later than one year from the acquisition date.

F-18

Table of escrow cash in the amount of $76 to the Company. These adjustments as well as the revaluation of contingent consideration resulted in a corresponding decrease in the value of acquired goodwill.Contents

The following table presents the estimated fair values and useful lives of intangible assets acquired duringfrom test IO, PolSource, CORE and Emakina as of the year endeddate of each respective acquisition and updated for any changes as of December 31, 2018:
2021:
Continuum Thinktest IOPolSourceCOREEmakina
Weighted Average Useful Life (in years) Amount Weighted Average Useful Life (in years) AmountWeighted Average Useful Life (in years)AmountWeighted Average Useful Life (in years)AmountWeighted Average Useful Life (in years)AmountWeighted Average Useful Life (in years)Amount
Customer relationships6.5 $5,800
 7 $6,117
Customer relationships7$2,456 6$14,790 6$7,779 7$27,822 
Favorable lease11.2 5,500
  
Contract royalties8 1,900
  
SoftwareSoftware63,461 — — — 
Trade names5 1,250
 5 765
Trade names4302 31,000 5589 32,666 
Total $14,450
 $6,882
Total$6,219 $15,790 $8,368 $30,488 
The goodwill recognized as a result of the acquisitionstest IO acquisition is attributable primarily to strategic and synergistic opportunities related to the consulting and design businesses, the assembled workforces acquired and other factors. The goodwill acquiredrecognized as a result of the ContinuumPolSource acquisition is attributable to synergies expected to be deductible for income tax purposes whileachieved by combining the businesses of EPAM and PolSource, expected future contracts, the assembled workforce acquired and other factors. The goodwill recognized as a result of the CORE acquisition is attributable to synergies expected to be achieved by expanding the Company’s ability to support customers as a strategic consultant in Europe and the Middle East, expected future contracts, the assembled workforce acquired and other factors. The goodwill recognized as a result of the Emakina acquisition is attributable to synergies expected to be achieved by enhancing EPAM’s digital experience practice as well as augmenting offerings in digital design and engineering capabilities, expected future contracts, the assembled workforce and other factors.
The goodwill acquired as a result of the Think acquisitiontest IO, PolSource, CORE and Emakina acquisitions is not expected to be deductible for income tax purposes.
Revenues generated by ContinuumThe Company recognized acquisition-related costs associated with the PolSource, CORE and Think totaled $26,300 and $1,908, respectively forEmakina acquisitions during the year ended December 31, 2018.2021 totaling $1.4 million, $1.2 million and $1.0 million, respectively. These costs are included in Selling, general and administrative expenses in the accompanying consolidated statement of income.
Revenues generated by PolSource, CORE and Emakina included in the Company’s consolidated statement of income totaled $55.0 million, $14.1 million and $24.7 million during the year ended December 31, 2021, respectively. Pro forma results of operations have not been presented because the effect of the Continuum and Thinkthese acquisitions on the Company’s consolidated financial statements was not material individually or in the aggregate.
Other 2019 Acquisitions During the yearsyear ended December 31, 2017 and 2016,2019, the Company completed 4 additional acquisitions with aggregatedan aggregate cash purchase pricesprice of $6,980$24.8 million and $5,580, respectively.committed to making cash earnout payments with a maximum amount payable of $3.0 million subject to attainment of specified performance targets ranging from 12 months to 24 months after the respective acquisition dates. These acquisitions individuallyincreased EPAM’s educational service and platform offerings and expanded the Company’s geographical reach, as well as added $7.5 million in intangible assets, consisting mainly of customer relationships. Pro forma results of operations have not been presented because the aggregate are not material toeffect of these acquisitions on the Company’s consolidated financial statements.statements was not material individually or in the aggregate.
2020 Acquisitions — During the year ended December 31, 2020, the Company completed 2 acquisitions with an aggregate purchase price of $22.5 million including contingent consideration with an aggregate acquisition-date fair value of $5.3 million. The Company committed to making contingent consideration payments with a maximum aggregate amount payable of $18.6 million subject to attainment of specified performance targets in the first and second calendar years after the respective acquisition dates. These acquisitions increased EPAM’s software and service capabilities and expanded EPAM’s offerings in financial services as well as added $7.3 million of intangible assets, consisting mainly of customer relationships. Revenues generated by these acquisitions totaled $6.0 million for the year ended December 31, 2020. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s consolidated financial statements was not material individually or in the aggregate.

F-19

Other 2021 Acquisitions — During the year ended December 31, 2021, the Company completed 4 additional acquisitions with an aggregate purchase price of $65.2 million including contingent consideration with an acquisition-date fair value of $17.6 million. The Company could pay up to $30.2 million in contingent consideration and the actual future payouts are subject to attainment of specified performance targets during the periods ranging from 12 months to 48 months after the respective acquisition dates. These acquisitions increased EPAM’s e-platform offerings and expanded the Company’s geographical reach as well as added $14.1 million in intangible assets, consisting mainly of customer relationships. Revenues generated by these Other 2021 Acquisitions totaled $19.5 million during the year ended December 31, 2021. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s consolidated financial statements was not material individually or in the aggregate.
3.GOODWILL AND INTANGIBLE ASSETS, NET
Goodwill by reportable segment was as follows:
 North America Europe Total
Balance as of January 1, 2017$76,812
 $32,477
 $109,289
Other acquisitions199
 4,533
 4,732
Other acquisitions purchase accounting adjustments(285) 2,100
 1,815
Effect of currency translation564
 3,131
 3,695
Balance as of December 31, 201777,290
 42,241
 119,531
Continuum acquisition (Note 2)26,617
 
 26,617
Think acquisition (Note 2)
 22,482
 22,482
Effect of currency translation(365) (1,433) (1,798)
Balance as of December 31, 2018$103,542
 $63,290
 $166,832
North AmericaEuropeRussiaTotal
Balance as of January 1, 2020$113,426 $80,873 $744 $195,043 
2020 Acquisitions6,042 6,903 — 12,945 
test IO purchase accounting adjustments863 (1,089)— (226)
Other 2019 Acquisitions purchase accounting adjustments219 259 21 499 
Effect of net foreign currency exchange rate changes582 3,160 (47)3,695 
Balance as of December 31, 2020121,132 90,106 718 211,956 
Emakina acquisition— 136,614 — 136,614 
PolSource acquisition75,203 50,136 — 125,339 
CORE acquisition— 23,234 — 23,234 
Other 2021 Acquisitions21,875 18,830 — 40,705 
2020 Acquisitions purchase accounting adjustments— (24)— (24)
Effect of net foreign currency exchange rate changes(616)(6,483)(2)(7,101)
Balance as of December 31, 2021$217,594 $312,413 $716 $530,723 
Excluded from the table above is the Russia segment for which the allocated goodwill was fully impaired for the periods presented. The Russia segment had accumulated goodwill impairment losses of $2,241$2.2 million as of December 31, 2018, 20172021, 2020 and 2016.2019. There were no accumulated goodwill impairment losses in the North America or Europe reportable segments as of December 31, 2018, 20172021, 2020 or 2016.2019.

Intangible assets other than goodwill as of December 31, 20182021 and 20172020 were as follows:
As of December 31, 2021
Weighted average life at acquisition (in years)Gross carrying amountAccumulated amortizationNet 
carrying amount
Customer relationships10$156,118 $(64,441)$91,677 
Trade names610,933 (6,086)4,847 
Software66,223 (2,639)3,584 
Contract royalties81,900 (910)990 
Assembled workforce3161 (116)45 
Total$175,335 $(74,192)$101,143 

F-20

Table of Contents
 As of December 31, 2018
 Weighted average life at acquisition (in years) Gross carrying amount Accumulated amortization 
Net 
carrying amount
Customer relationships9.5 $78,042
 $(29,580) $48,462
Favorable lease11.2 5,500
 (410) 5,090
Trade names5.3 6,111
 (4,300) 1,811
Contract royalties8 1,900
 (198) 1,702
Total
 $91,553
 $(34,488) $57,065
As of December 31, 2017As of December 31, 2020
Weighted average life at acquisition (in years) Gross carrying amount Accumulated amortization 
Net 
carrying amount
Weighted average life at acquisition (in years)Gross carrying amountAccumulated amortizationNet 
carrying amount
Customer relationships10 $66,646
 $(22,200) $44,446
Customer relationships9$94,169 $(49,415)$44,754 
Trade names5 4,099
 (4,034) 65
Trade names56,495 (5,273)1,222 
SoftwareSoftware66,309 (1,633)4,676 
Contract royaltiesContract royalties81,900 (673)1,227 
Assembled workforceAssembled workforce3157 (61)96 
Total $70,745
 $(26,234) $44,511
Total$109,030 $(57,055)$51,975 
All of the intangible assets other than goodwill have finite lives and as such are subject to amortization. Amortization of the favorable lease asset is recognized as rent expense and included in selling, general and administrative expenses and amortization of the other intangible assets is recognized in depreciation and amortization expense in the consolidated statements of income and comprehensive income.
The following table presents amortization expense recognized for the periods indicated:
 For the Years Ended December 31,For the Years Ended December 31,
 2018 2017 2016202120202019
Customer relationships $7,637
 $6,643
 $6,858
Customer relationships$15,399 $10,478 $8,743 
Favorable lease 410
 
 
SoftwareSoftware1,114 1,068 486 
Trade names 266
 896
 1,139
Trade names842 495 447 
Contract royalties 198
 
 
Contract royalties238 238 238 
Non-competition agreements 
 23
 173
Assembled workforceAssembled workforce53 61 — 
Total $8,511
 $7,562
 $8,170
Total$17,646 $12,340 $9,914 
The following table presents estimated amortization expense related toBased on the carrying value of the Company’s existing intangible assets as of December 31, 2021, the estimated amortization expense for the future years is as follows:
Year ending December 31,Amount
2022$23,527 
202322,219 
202419,472 
202515,522 
202611,027 
Thereafter9,376 
Total$101,143 
F-21


4.FAIR VALUE MEASUREMENTS
The Company carries certain assets and liabilities at fair value on a recurring basis on its consolidated balance sheets. The following table shows the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2021:
As of December 31, 2021
BalanceLevel 1Level 2Level 3
Foreign exchange derivative assets$1,429 $— $1,429 $— 
Rights to acquire noncontrolling interest in consolidated subsidiaries6,093 — — 6,093 
Total assets measured at fair value on a recurring basis$7,522 $ $1,429 $6,093 
Foreign exchange derivative liabilities$5,849 $— $5,849 $— 
Contingent consideration23,114  — 23,114 
Total liabilities measured at fair value on a recurring basis$28,963 $ $5,849 $23,114 

The following table shows the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2020.
As of December 31, 2020
BalanceLevel 1Level 2Level 3
Foreign exchange derivative assets$4,955 $— $4,955 $— 
Total assets measured at fair value on a recurring basis$4,955 $ $4,955 $ 
Foreign exchange derivative liabilities$243 $— $243 $— 
Contingent consideration7,470  — 7,470 
Total liabilities measured at fair value on a recurring basis$7,713 $ $243 $7,470 
The foreign exchange derivatives are valued using pricing models and discounted cash flow methodologies based on observable foreign exchange data at the measurement date. See Note 5 “Derivative Financial Instruments” for additional information regarding derivative financial instruments.
As part of the acquisition of Emakina, the Company acquired rights to purchase certain noncontrolling interests in consolidated subsidiaries of Emakina in exchange for future cash payments determined by the future profitability of certain subsidiaries. The Company determines the fair value of these rights by (i) estimating the fair value of the noncontrolling interests in consolidated subsidiaries by applying an EBITDA multiple adjusted for a lack of control and marketability, less (ii) the fair value of expected future payments to settle the related contractual obligations. The Company expects to purchase the majority of the noncontrolling interest in consolidated subsidiaries in the first quarter of 2022.
The Company determines the fair value of the contingent consideration liabilities using Monte Carlo simulations or probability-weighted expected return methods. The fair value of the contingent consideration for the PolSource acquisition attributable to future revenues and earnings was measured utilizing a Monte Carlo simulation, based on future revenue and earnings projections of the business, revenue volatility and asset volatility of comparable companies, and a discount rate. The discount rate used to determine the fair value of this contingent consideration was 0.4% as of the acquisition date. The fair value of the contingent consideration for the PolSource acquisition attributable to future operating metrics was measured using a probability-weighted expected return method, based on the expected future payments using the earnout formula and performance targets specified in the purchase agreement and adjusting those estimates to reflect the probability of their achievement. The weighted-average estimated future payments were then discounted to present value using a rate based on EPAM’s cost of debt. The discount rate used to determine the fair value of this contingent consideration was 0.4% as of the acquisition date.

F-22

The fair value of the contingent consideration for all other acquisitions was determined using a probability-weighted expected return method and is based on the expected future payments to be made to the sellers of the acquired businesses in accordance with the provisions outlined in the respective purchase agreements. Although there is significant judgment involved, the Company believes its estimates and assumptions are reasonable. In determining fair value, the Company considered a variety of factors, including future performance of the acquired businesses using financial projections developed by the Company and market risk assumptions that were derived for revenue growth and earnings before interest and taxes. The Company estimated future payments using the earnout formula and performance targets specified in the purchase agreements and adjusted those estimates to reflect the probability of their achievement. Those weighted-average estimated future payments were then discounted to present value using a rate based on the weighted-average cost of capital of guideline companies. The discount rate used to determine the fair value of contingent consideration for the CORE acquisition was 13.0%. The discount rates used to determine the fair value of contingent consideration for the Other 2021 Acquisitions ranged from a minimum of 15.0% to a maximum of 22.0%. The discount rates used to determine the fair value of contingent consideration for the 2020 Acquisitions ranged from a minimum of 15.5% to a maximum of 17.5%. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earnout criteria would result in a change in the fair value of the recorded contingent liabilities. Such changes, if any, are recorded within Interest and other income, net in the Company’s consolidated statement of income and comprehensive income.
A reconciliation of the beginning and ending balances of Level 3 acquisition-related contingent consideration liabilities using significant unobservable inputs for the years ended December 31:
31, 2019, December 31, 2020 and December 31, 2021 are as follows:
  Amount
2019 $9,520
2020 9,520
2021 9,520
2022 9,379
2023 8,153
Thereafter 10,973
Total $57,065

4.PROPERTY AND EQUIPMENT, NETAmount
Contingent consideration liabilities as of January 1, 2019$7,468
Acquisition date fair value of contingent consideration — Other 2019 Acquisitions (Note 2)2,100 
Changes in fair value of contingent consideration included in Interest and other (loss)/income, net1,776 
Payment of contingent consideration for previously acquired businesses(1,104)
Effect of net foreign currency exchange rate changes255 
Contingent consideration liabilities as of December 31, 2019$10,495
Acquisition date fair value of contingent consideration — 2020 Acquisitions (Note 2)5,292 
Changes in fair value of contingent consideration included in Interest and other (loss)/income, net1,827 
Payment of contingent consideration for previously acquired businesses(9,619)
Effect of net foreign currency exchange rate changes(525)
Contingent consideration liabilities as of December 31, 2020$7,470
Acquisition date fair value of contingent consideration — PolSource acquisition (Note 2)35,400 
Acquisition date fair value of contingent consideration — CORE acquisition (Note 2)4,007 
Acquisition date fair value of contingent consideration — Emakina acquisition (Note 2)213 
Acquisition date fair value of contingent consideration — Other 2021 Acquisitions (Note 2)17,629 
Changes in fair value of contingent consideration included in Interest and other (loss)/income, net8,782 
Payment of contingent consideration for previously acquired businesses(50,000)
Effect of net foreign currency exchange rate changes(387)
Contingent consideration liabilities as of December 31, 2021$23,114
F-23

Financial Assets and Liabilities Not Measured at Fair Value on a Recurring Basis
Estimates of fair value of financial instruments not carried at fair value on a recurring basis on the Company’s consolidated balance sheets are generally subjective in nature, and are determined as of a specific point in time based on the characteristics of the financial instruments and relevant market information. The Company uses the following methods to estimate the fair values of its financial instruments:
for financial instruments that have quoted market prices, those quoted prices are used to estimate fair value;
for financial instruments for which no quoted market prices are available, fair value is estimated using information obtained from independent third parties, or by discounting the expected cash flows using an estimated current market interest rate for the financial instrument;
for financial instruments for which no quoted market prices are available and that have no defined maturity, have a remaining maturity of 360 days or less, or reprice frequently to a market rate, the Company assumes that the fair value of these instruments approximates their reported value, after taking into consideration any applicable credit risk.
The generally short maturities of certain assets and liabilities result in a number of assets and liabilities for which fair value equals or closely approximates the amount recorded on the Company’s consolidated balance sheets. Such financial assets and liabilities that are not carried at fair value on a recurring basis on the Company’s consolidated balance sheets are cash equivalents, restricted cash, short-term investments, employee loans and long-term debt (Note 9 “Debt”).
The following tables present the estimated fair values of the Company’s financial assets and liabilities not measured at fair value on a recurring basis as of the dates indicated:
Fair Value Hierarchy
BalanceEstimated Fair ValueLevel 1Level 2Level 3
December 31, 2021
Financial Assets:
Cash equivalents:
Money market funds$78,302 $78,302 $78,302 $— $— 
Total cash equivalents$78,302 $78,302 $78,302 $— $— 
Restricted cash$2,722 $2,722 $2,722 $— $— 
Employee loans$818 $818 $— $— $818 
Financial Liabilities:
Short term debt$16,018 $16,018 $— $16,018 $— 
Borrowings under 2021 Credit Agreement$25,000 $25,000 $— $25,000 $— 
Other long term debt$5,234 $5,234 $— $5,234 $— 

Fair Value Hierarchy
BalanceEstimated Fair ValueLevel 1Level 2Level 3
December 31, 2020
Financial Assets:
Cash equivalents:
Money market funds$153,783 $153,783 $153,783 $— $— 
Total cash equivalents$153,783 $153,783 $153,783 $— $— 
Restricted cash$1,390 $1,390 $1,390 $— $— 
Time deposits included in Short-term investments$60,007 $60,007 $— $60,007 $— 
Employee loans$794 $794 $— $— $794 
Financial Liabilities:
Borrowings under 2017 Credit Facility$25,007 $25,007 $— $25,007 $— 
Non-Marketable Securities Without Readily Determinable Fair Values
F-24

The Company holds investments in equity securities that do not have readily determinable fair values. These investments are recorded at cost and are remeasured to fair value based on certain observable price changes or impairment events as they occur. The carrying amount of these investments was $27.5 million and $25.0 million as of December 31, 2021 and December 31, 2020, respectively and is classified as Other noncurrent assets in the Company’s consolidated balance sheets.
5.DERIVATIVE FINANCIAL INSTRUMENTS
In the normal course of business, the Company uses derivative financial instruments to manage the risk of fluctuations in foreign currency exchange rates. The Company has a hedging program whereby it enters into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Russian ruble, Polish zloty, Hungarian forint and Indian rupee transactions.
The Company measures derivative instruments and hedging activities at fair value and recognizes them as either assets or liabilities in its consolidated balance sheets. Accounting for the gains and losses resulting from changes in fair value depends on the use of the derivative and whether it is designated and qualifies for hedge accounting. To receive hedge accounting treatment, all hedging relationships are formally documented at the inception of the hedge, and the hedges must be highly effective in offsetting changes to future cash flows on hedged transactions. As of December 31, 2021, all of the Company’s foreign exchange forward contracts were designated as hedges.
Derivatives may give rise to credit risks from the possible non-performance by counterparties. The Company has limited its credit risk by entering into derivative transactions only with highly-rated financial institutions and by conducting an ongoing evaluation of the creditworthiness of the financial institutions with which the Company does business. There is no financial collateral (including cash collateral) required to be posted by the Company related to the foreign exchange forward contracts.
The fair value of foreign currency derivative instruments on the Company’s consolidated balance sheets as of December 31, 2021 and December 31, 2020 were as follows:
As of December 31, 2021As of December 31, 2020
Balance Sheet ClassificationAsset DerivativesLiability DerivativesAsset DerivativesLiability Derivatives
Foreign exchange forward contracts - Designated as hedging instruments
Prepaid and other current assets$1,429 $4,955 
Accrued expenses and other current liabilities$5,849 $243 

6.PROPERTY AND EQUIPMENT, NET
Property and equipment, net consisted of the following:
 Weighted Average Useful Life
(in years)
As of December 31, 2021As of December 31, 2020
Computer hardware3$167,546 $117,333 
Buildings4455,388 52,007 
Leasehold improvements837,828 39,675 
Purchased computer software333,649 31,993 
Furniture, fixture and other equipment731,961 31,859 
Office equipment722,881 20,971 
Land improvements182,137 2,137 
Landn/a1,339 1,339 
Construction in progressn/a50,133 — 
402,862 297,314 
Less accumulated depreciation and amortization(166,648)(127,781)
Total$236,214 $169,533 
F-25

  
Weighted Average Useful Life
(in years)
 As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
Computer hardware 3 $74,884
 $62,132
Building 49 34,458
 34,058
Leasehold improvements 9 25,036
 13,186
Furniture and fixtures 7 21,544
 18,071
Office equipment 7 13,203
 10,825
Purchased computer software 4 10,406
 8,379
Land improvements 20 1,474
 1,474
    181,005
 148,125
Less accumulated depreciation and amortization   (78,359) (61,706)
Total   $102,646
 $86,419
Table of Contents
Depreciation and amortization expense related to property and equipment was $28,539, $21,000$65.5 million, $50.5 million and $15,217$35.4 million during the years ended December 31, 2018, 20172021, 2020 and 2016,2019, respectively.
On November 1, 2019, the Company acquired an office building in Minsk, Belarus for $18.9 million, excluding refundable VAT. The acquired building is intended to be used in the Company’s normal operations as office space for its employees; however, a portion of the building was leased to third parties under operating lease agreements prior to the Company’s purchase and the Company will continue leasing under those agreements (see Note 8 “Leases”). In addition to this building, the Company has other assets which generate lease income. The gross amount of such assets including the leased portion of the Minsk building was $3.3 million and $6.7 million, and the associated accumulated depreciation was $0.2 million and $0.2 million as of December 31, 2021 and 2020, respectively. Depreciation expense associated with these assets held under operating leases was $0.1 million and $0.2 million for the year ended December 31, 2021 and 2020, respectively.
5.ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
On November 17, 2021, the Company acquired an office building in the process of being constructed in Kyiv, Ukraine for $50.1 million. Once completed, the acquired building is intended to be used in the Company’s normal operations as office space for its employees. The office building is classified as construction-in-progress as of December 31, 2021 and the Company expects the office building to be available for its intended use in the second half of 2022.
7.ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
Accrued expenses and other current liabilities consisted of the following:
As of December 31, 2021As of December 31, 2020
Value added taxes payable$49,924 $34,522 
Deferred revenue39,810 17,383 
Contingent consideration, current (Note 4)9,405 1,125 
Other current liabilities and accrued expenses42,875 26,660 
Total$142,014 $79,690 

8.LEASES
  As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
Accrued compensation expense and related costs $97,877
 $67,034
Deferred revenue 4,558
 4,498
Other current liabilities and accrued expenses 25,502
 18,280
Total $127,937
 $89,812
6.TAXES PAYABLE
Current taxes payable consistedThe Company leases office space, corporate apartments, office equipment, and vehicles. Many of the following:Company’s leases contain variable payments including changes in base rent and charges for common area maintenance or other miscellaneous expenses. Due to this variability, the cash flows associated with these variable payments are not included in the minimum lease payments used in determining the RoU Assets and associated lease liabilities and are recognized in the period in which the obligation for such payments is incurred. The Company’s leases have remaining lease terms ranging from 0.1 to 9.4 years. Certain lease agreements, mainly for office space, include options to extend or terminate the lease before the expiration date. The Company considers such options when determining the lease term when it is reasonably certain that the Company will exercise that option. The Company leases and subleases a portion of its office space to third parties. Lease income and sublease income were immaterial for the years ended December 31, 2021, 2020 and 2019.
During the years ended December 31, 2021, 2020 and 2019, the components of lease expense were as follows:
 Income Statement ClassificationYear Ended December 31, 2021Year Ended December 31, 2020Year Ended December 31, 2019
Operating lease costSelling, general and administrative expenses$67,144 $73,740 $62,740 
Variable lease costSelling, general and administrative expenses8,555 6,461 8,730 
Short-term lease costSelling, general and administrative expenses2,248 1,169 3,870 
Total lease cost$77,947 $81,370 $75,340 

F-26

Table of Contents
  As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
Income taxes payable $27,538
 $9,488
Payroll, social security, and other taxes payable 20,322
 16,696
Value added taxes payable 19,985
 14,676
Total $67,845
 $40,860
Supplemental cash flow information related to leases for the years ended December 31, 2021 and 2020 were as follows:
 Year Ended December 31, 2021Year Ended December 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases$68,986 $70,012 
Right-of-use assets obtained in exchange for lease obligations:
Operating leases$18,590 $50,949 
Non-cash net increase due to lease modifications:
Operating lease right-of-use assets$7,000 $7,876 
Operating lease liabilities$7,062 $7,861 
Weighted average remaining lease terms and discount rates as of December 31, 2021 and 2020, were as follows:
 As of December 31, 2021As of December 31, 2020
Weighted average remaining lease term, in years:
Operating leases5.55.9
Weighted average discount rate:
Operating leases2.5 %2.9 %
As of December 31, 2021, operating lease liabilities will mature as follows:
Year ending December 31,Lease Payments
2022$53,985 
202340,385 
202433,589 
202524,144 
202618,576 
Thereafter34,701 
Total lease payments205,380 
Less: imputed interest(12,474)
Total$192,906 
There were no lease agreements that contained material restrictive covenants or material residual value guarantees as of December 31, 2021. There were no material lease agreements signed with related parties as of December 31, 2021.
As of December 31, 2021, the Company had committed to payments of $28.3 million related to operating lease agreements that had not yet commenced as of December 31, 2021. These operating leases will commence on various dates during 2022 and 2023 with lease terms ranging from 0.5 years to 10 years. The Company does not have any material finance lease agreements that had not yet commenced.
9.DEBT
Revolving Line of Credit —On May 24, 2017, the Company entered into an unsecured credit facility (the “2017 Credit Facility”), as was amended from time to time, with PNC Bank, National Association; PNC Capital Markets LLC; Citibank N.A.; Wells Fargo Bank, National Association; Fifth Third Bank and Santander Bank, N.A. (collectively the “Lenders”). The 2017 Credit Facility provided for a resultborrowing capacity of $300.0 million, with potential to increase the credit facility up to $400.0 million under certain conditions.

F-27

Borrowings under the 2017 Credit Facility were able to be denominated in U.S. dollars or up to a maximum of $100.0 million in British pounds, Canadian dollars, euros and Swiss francs and other currencies as may be approved by the administrative agent and the Lenders. Borrowings under the 2017 Credit Facility bore interest at either a base rate or Euro-rate plus a margin based on the Company’s leverage ratio. The base rate was equal to the highest of (a) the Overnight Bank Funding Rate, plus 0.5%, (b) the Prime Rate, or (c) the Daily LIBOR Rate, plus 1.0%.
The 2017 Credit Facility included customary business and financial covenants that could have restricted the Company’s ability to make or pay dividends (other than certain intercompany dividends) in a case of a potential or an actual event or trigger of default.
The 2017 Credit Facility had an original maturity date of May 24, 2022 and on October 21, 2021, the Company replaced the 2017 Credit Facility with a new unsecured credit agreement (the “2021 Credit Agreement”) with PNC Bank, National Association; PNC Capital Markets LLC; Citibank N.A.; Wells Fargo Bank, National Association; Santander Bank, N.A.; and Raiffeisen Bank International AG (collectively the “Lenders”). The 2021 Credit Agreement provides for a revolving credit facility (the “2021 Revolving Facility”) with a borrowing capacity of $700.0 million, with potential to increase the borrowing capacity up to $1,000.0 million if certain conditions are met. The 2021 Credit Agreement matures on October 21, 2026.
Borrowings under the 2021 Revolving Facility may be denominated in U.S. dollars or up to a maximum of $150.0 million equivalent in British pounds sterling, Canadian dollars, euros or Swiss francs and other currencies as may be approved by the administrative agent and the Lenders. Borrowings under the 2021 Revolving Facility bear interest at either a base rate or Euro-rate plus a margin based on the Company’s leverage ratio. The base rate is equal to the highest of (a) the Overnight Bank Funding Rate, plus 0.5%, (b) the Prime Rate, or (c) the Daily LIBOR Rate, plus 1.0%, so long as the Daily LIBOR Rate is offered, ascertainable and not unlawful. As of December 31, 2021, the Company’s outstanding borrowings are subject to a LIBOR-based interest rate, which resets regularly at issuance, based on lending terms.
The 2021 Credit Agreement includes customary business and financial covenants that may restrict the Company’s ability to make or pay dividends (other than certain intercompany dividends) if a potential or an actual event of default has occurred or would be triggered. As of December 31, 2021, the Company was in compliance with all covenants contained in the 2021 Credit Agreement.
The following table presents the outstanding debt and borrowing capacity of the Company under the 2021 Credit Agreement as of December 31, 2021 and the 2017 Credit Facility as of December 31, 2020:
 As of December 31, 2021As of December 31, 2020
Outstanding debt$25,000 $25,000 
Interest rate1.0 %1.2 %
Available borrowing capacity$675,000 $275,000 
Current maximum borrowing capacity$700,000 $300,000 
Other Debt - On November 3, 2021, in connection with the acquisition of Emakina, the Company assumed the debt obligations of the acquired companies. Debt that matures within one year is classified as Short-term debt on the consolidated balance sheets, consists of multiple bank loans and credit lines totaling $16.0 million that bear a weighted-average interest rate of 1.6%. Debt that matures from 2023 through 2027 is classified as Long-term debt on the consolidated balance sheets and consists of multiple bank loans and credit lines totaling $5.2 million that bear interest at a weighted-average interest rate of 1.3%. Some of this debt is secured by assets of Emakina. Some of the debt agreements contain covenants and as of December 31, 2021, the Company was in compliance with all those covenants.

10.PENSION AND POSTRETIREMENT BENEFITS
Defined Contribution Pension Plans
The Company offers defined contribution plans for its employees in certain countries including a 401(k) retirement plan covering substantially all of the Company’s U.S. Tax Act enacted onemployees. Employer contributions charged to expense for defined contribution benefit plans for the years ended December 22, 2017,31, 2021, 2020 and 2019, were $21.3 million, $16.0 million, and $14.8 million, respectively.
Defined Benefit Pension Plans
F-28

The Company sponsors defined benefit pension plans for its employees in certain countries as governed by local regulatory requirements. During the years ended December 31, 2021, 2020 and 2019, the Company recorded expense of $5.5 million, $4.3 million and $1.4 million, respectively, related to these plans. In accumulated other comprehensive loss, the Company recorded a net actuarial gain as a component of net periodic benefit cost of $3.8 million during the year ended December 31, 2017, the Company provisionally recorded income taxes payable of $64,321 to be paid over the next 8 years2021 and a net actuarial loss as a one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax. Of this amount, $59,175component of net periodic benefit cost of $1.3 million during the year ended December 31, 2020.
The overfunded balance of our defined benefit pension plans was classified as Taxes payable, noncurrent$1.2 million and $0 as of December 31, 2017. 2021 and 2020, respectively, which is included Other noncurrent assets in our consolidated balance sheets. The unfunded balance of our defined benefit pension plans was $4.1 million as of December 31, 2021 of which $0.6 million is included in Accrued compensation and benefits expense and $3.5 million is classified in Other noncurrent liabilities in our consolidated balance sheets. The unfunded balance of our defined benefit pension plans was $6.4 million as of December 31, 2020 of which $1.0 million is included in Accrued compensation and benefits expense and $5.4 million is classified in Other noncurrent liabilities in our consolidated balance sheets.
11.REVENUES
Revenues are sourced from four geographic markets: Americas, EMEA, CEE and APAC. The Company presents and discusses revenues by customer location based on the location of the specific customer site that we serve, irrespective of the location of the headquarters of the customer or the location of the delivery center where the work is performed. Revenues by customer location is different from revenues by reportable segment as segments are not based on the geographic location of the customers, but instead they are based on the location of the Company’s management responsible for a particular customer or market (see Note 16 “Segment Information”). The Company assigns customers into one of five vertical industries or a group of various industries where the Company is increasing its presence, which are labeled as “Emerging Verticals”. Emerging Verticals include customers in multiple industries such as energy, utilities, manufacturing, automotive, telecommunications and several others.
Disaggregation of Revenues
The following tables show the disaggregation of the Company’s revenues by major customer location, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 16 “Segment Information”) for the years ended December 31, 2021, 2020 and 2019:
Year Ended December 31, 2021
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Customer Locations
Americas$2,145,163 $77,351 $4,316 $2,226,830 
EMEA87,121 1,172,267 329 1,259,717 
CEE6,740 531 160,767 168,038 
APAC3,224 100,335 — 103,559 
Revenues$2,242,248 $1,350,484 $165,412 $3,758,144 

Year Ended December 31, 2020
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Customer Locations
Americas$1,546,093 $45,553 $3,490 $1,595,136 
EMEA45,733 834,033 76 879,842 
CEE7,817 98 106,787 114,702 
APAC2,177 67,621 — 69,798 
Revenues$1,601,820 $947,305 $110,353 $2,659,478 

F-29

Year Ended December 31, 2019
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Customer Locations
Americas$1,344,040 $45,859 $116 $1,390,015 
EMEA27,042 719,548 276 746,866 
CEE8,583 143 91,745 100,471 
APAC1,279 55,167 — 56,446 
Revenues$1,380,944 $820,717 $92,137 $2,293,798 

The following tables show the disaggregation of the Company’s revenues by industry vertical, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 16 “Segment Information”) for the years ended December 31, 2021, 2020 and 2019:
Year Ended December 31, 2021
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Industry Verticals
Financial Services$361,611 $372,394 $114,365 $848,370 
Travel & Consumer359,306 354,041 27,781 741,128 
Business Information & Media389,613 275,502 1,826 666,941 
Software & Hi-Tech559,707 102,270 2,620 664,597 
Life Sciences & Healthcare340,706 49,900 703 391,309 
Emerging Verticals231,305 196,377 18,117 445,799 
Revenues$2,242,248 $1,350,484 $165,412 $3,758,144 

Year Ended December 31, 2020
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Industry Verticals
Financial Services$199,594 $278,355 $77,286 $555,235 
Travel & Consumer221,977 220,448 16,364 458,789 
Business Information & Media334,063 224,922 1,695 560,680 
Software & Hi-Tech419,895 73,288 3,630 496,813 
Life Sciences & Healthcare260,518 35,347 448 296,313 
Emerging Verticals165,773 114,945 10,930 291,648 
Revenues$1,601,820 $947,305 $110,353 $2,659,478 

F-30

Year Ended December 31, 2019
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Industry Verticals
Financial Services$184,469 $244,284 $72,119 $500,872 
Travel & Consumer198,264 229,523 11,571 439,358 
Business Information & Media262,448 157,844 631 420,923 
Software & Hi-Tech354,023 77,377 1,998 433,398 
Life Sciences & Healthcare224,925 23,444 83 248,452 
Emerging Verticals156,815 88,245 5,735 250,795 
Revenues$1,380,944 $820,717 $92,137 $2,293,798 
The Company derives revenues from a variety of customized and integrated service arrangements. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements.
The following tables show the disaggregation of the Company’s revenues by contract type, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 16 “Segment Information”) for the years ended December 31, 2021, 2020 and 2019:
Year Ended December 31, 2021
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Contract Types
Time-and-material$1,981,696 $1,145,606 $82,445 $3,209,747 
Fixed-price244,249 202,436 82,711 529,396 
Licensing14,540 793 219 15,552 
Other revenues1,763 1,649 37 3,449 
Revenues$2,242,248 $1,350,484 $165,412 $3,758,144 

Year Ended December 31, 2020
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Contract Types
Time-and-material$1,440,635 $790,203 $60,166 $2,291,004 
Fixed-price151,769 151,718 48,525 352,012 
Licensing8,027 1,526 1,586 11,139 
Other revenues1,389 3,858 76 5,323 
Revenues$1,601,820 $947,305 $110,353 $2,659,478 

Year Ended December 31, 2019
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Contract Types
Time-and-material$1,247,979 $688,605 $54,069 $1,990,653 
Fixed-price127,926 128,977 37,747 294,650 
Licensing3,626 1,230 225 5,081 
Other revenues1,413 1,905 96 3,414 
Revenues$1,380,944 $820,717 $92,137 $2,293,798 

F-31

Timing of Revenue Recognition
The following tables show the timing of revenue recognition reconciled with the Company’s reportable segments (Note 16 “Segment Information”) for the years ended December 31, 2021, 2020 and 2019:
Year Ended December 31, 2021
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Timing of Revenue Recognition
Transferred over time$2,232,308 $1,349,956 $165,301 $3,747,565 
Transferred at a point of time9,940 528 111 10,579 
Revenues$2,242,248 $1,350,484 $165,412 $3,758,144 

Year Ended December 31, 2020
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Timing of Revenue Recognition
Transferred over time$1,595,786 $946,379 $108,826 $2,650,991 
Transferred at a point of time6,034 926 1,527 8,487 
Revenues$1,601,820 $947,305 $110,353 $2,659,478 

Year Ended December 31, 2019
Reportable Segments
North AmericaEuropeRussiaConsolidated Revenues
Timing of Revenue Recognition
Transferred over time$1,379,256 $819,913 $92,076 $2,291,245 
Transferred at a point of time1,688 804 61 2,553 
Revenues$1,380,944 $820,717 $92,137 $2,293,798 
During the years ended December 31, 2021, 2020 and 2019 the Company recognized $18.7 million, $5.0 million and $7.8 million, respectively, of revenues from performance obligations satisfied in previous periods.
The following table includes the estimated revenues expected to be recognized in the future related to performance obligations that are partially or fully unsatisfied as of December 31, 2021. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts that (i) have an original expected duration of one year or less and (ii) contracts for which it recognizes revenues at the amount to which it has the right to invoice for services provided:
Less than 1 year1 Year2 Years3 YearsTotal
Contract Type
Fixed-price$8,214 $380 $— $— $8,594 
The Company applies a practical expedient and does not disclose the amount of the transaction price allocated to the remaining performance obligations nor provide an explanation of when the Company expects to recognize that amount as revenue for certain variable consideration.
F-32

Contract Balances
The following table provides information on the classification of contract assets and liabilities in the consolidated balance sheets:
 As of December 31, 2021As of December 31, 2020
Contract assets included in Trade receivables and contract assets$13,798 $7,700 
Contract liabilities included in Accrued expenses and other current liabilities$39,810 $17,383 
Contract liabilities included in Other noncurrent liabilities$84 $94 

Contract assets comprise amounts where the Company’s right to bill is contingent on something other than the passage of time. Contract assets have increased from December 31, 2020 primarily due to an increase in fixed-fee contracts resulting from revenue growth during the year and from the acquisitions completed in 2021. Contract liabilities comprise amounts collected from the Company’s customers for revenues not yet earned and such amounts are anticipated to be recorded as revenues when services are performed in subsequent periods. Contract liabilities have increased from December 31, 2020 primarily due to an increase in customer advances at the end of the year and advance payments in excess of revenue recognized under percentage-of-completion contracts attributable to businesses acquired in 2021.
During the year ended December 31, 2018,2021, the Company completedrecognized $16.2 million of revenues that were included in Accrued expenses and other current liabilities at December 31, 2020. During the year ended December 31, 2020, the Company recognized $8.6 million of revenues that were included in Accrued expenses and other current liabilities at December 31, 2019.

12.STOCK-BASED COMPENSATION
The following costs related to the Company’s stock compensation plans were included in the consolidated statements of income:
For the Years Ended December 31,
202120202019
Cost of revenues (exclusive of depreciation and amortization)$51,580 $32,785 $37,580 
Selling, general and administrative expenses
60,075 42,453 34,456 
Total$111,655 $75,238 $72,036 
Equity Plans
2015 Long-Term Incentive Plan— On June 11, 2015, the Company’s stockholders approved the 2015 Long-Term Incentive Plan (“2015 Plan”) to be used to issue equity awards to Company personnel. As of December 31, 2021, 4,266 thousand shares of common stock remained available for issuance under the 2015 Plan. All of the awards issued pursuant to the 2015 Plan expire 10 years from the date of grant.
2012 Non-Employee Directors Compensation Plan — On January 11, 2012, the Company approved the 2012 Non-Employee Directors Compensation Plan (“2012 Directors Plan”) to be used to issue equity grants to its assessmentnon-employee directors. The Company authorized 600 thousand shares of common stock to be reserved for issuance under the 2012 Directors Plan. As of December 31, 2021, 522 thousand shares of common stock remained available for issuance under the 2012 Directors Plan. The 2012 Directors Plan will expire after 10 years and adjustedis administered by the provisionally recordedCompany’s Board of Directors.
2012 Long-Term Incentive Plan — On January 11, 2012, the Company approved the 2012 Long-Term Incentive Plan (“2012 Plan”) to be used to issue equity grants to Company personnel. In June 2015, the 2012 Plan was discontinued; however, outstanding awards remain subject to the terms of the 2012 Plan and any shares that are subject to an award that was previously granted under the 2012 Plan and that expire or terminate for any reason prior to exercise will become available for issuance under the 2015 Plan. All of the awards issued pursuant to the 2012 Plan expire 10 years from the date of grant.

F-33

2021 Employee Stock Purchase Plan - Effective April 7, 2021, the Board of Directors of the Company adopted the 2021 Employee Stock Purchase Plan ("ESPP"), and effective June 8, 2021, the Company’s stockholders approved the ESPP . The purpose of the ESPP is to enable eligible employees to purchase shares of EPAM’s common stock at a discount through payroll deductions of up to 10% of their eligible compensation at the end of each designated offering period, which occurs every six months in April and November. The purchase price is equal to 85% of the fair market value of a share of EPAM’s common stock on the first date of an offering or the date of purchase, whichever is lower. There are 900 thousand shares authorized for issuance in connection with the ESPP.
Stock Options
Stock option activity under the Company’s plans is set forth below:
 Number of
Options
Weighted Average
Exercise Price 
Aggregate
Intrinsic Value 
Weighted Average
Remaining Contractual Term (in years)
Options outstanding as of January 1, 20194,083 $44.54 $291,846 
Options granted132 $169.13 
Options modified18 $163.55 
Options exercised(899)$41.21 
Options forfeited/cancelled(11)$97.83 
Options outstanding as of December 31, 20193,323 $50.85 $536,015 
Options granted158 $187.76 
Options modified— $— 
Options exercised(700)$37.79 
Options forfeited/cancelled(9)$119.30 
Options outstanding as of December 31, 20202,772 $61.71 $822,152 
Options granted94 $410.03 
Options exercised(536)$49.13 
Options forfeited/cancelled(12)$248.74 
Options outstanding as of December 31, 20212,318 $77.79 $1,369,132 3.7
Options vested and exercisable as of December 31, 20212,018 $53.27 $1,241,261 3.0
Options expected to vest as of December 31, 2021284 $240.03 $121,544 8.1
The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model. The model incorporated the following weighted-average assumptions:
For the Years Ended December 31,
202120202019
Expected volatility35.3 %36.9 %33.5 %
Expected term (in years)6.246.256.25
Risk-free interest rate1.2 %0.5 %2.3 %
Expected dividends— %— %— %
Expected volatility is based on the historical volatility of the Company’s stock price. The expected term represents the period of time that options granted are expected to be outstanding. The risk-free rate is based on the U.S. Treasury yield curve for the periods equal to the expected term of the options in effect at the time of grant. The Company has not declared or paid any dividends on its common stock. The Company intends to retain any earnings to fund operations and future growth of its business and, therefore, does not anticipate paying any cash dividends in the foreseeable future.
The weighted-average grant-date fair value of stock options granted during the years ended December 31, 2021, 2020 and 2019 was $149.26, $68.53 and $63.12, respectively. The total intrinsic value of options exercised during the years ended December 31, 2021, 2020 and 2019 was $251.9 million, $151.3 million and $121.1 million, respectively.
F-34

The Company recognizes the fair value of each option as compensation expense on a straight-line basis over the requisite service period, which is generally the vesting period. The options are typically scheduled to vest over four years from the time of grant, subject to the terms of the applicable plan and stock option agreement. The Company records share-based compensation expense only for those awards that are expected to vest and as such, the Company applies an estimated forfeiture rate at the time of grant and adjusts the forfeiture rate estimate quarterly to reflect actual forfeiture activity. In general, in the event of a participant’s voluntary termination of service, unvested options are forfeited as of the date of such termination without any payment to the participant and the cumulative amount of previously recognized expense related to $59,386. Of this amount, $42,253the forfeited options is classifiedreversed.
As of December 31, 2021, $18.7 million of total remaining unrecognized compensation cost related to unvested stock options, net of estimated forfeitures, is expected to be recognized over a weighted-average period of 2.7 years.
Restricted Stock and Restricted Stock Units
The Company grants restricted stock units (“RSUs”) to Company personnel and non-employee directors under the Company’s 2015 Plan (and prior to its approval, under the 2012 Plan) and 2012 Directors Plan, respectively. In addition, the Company has issued in the past, and may issue in the future, its equity securities to compensate employees of acquired businesses for future services. Equity-based awards granted in connection with acquisitions of businesses may be issued in the form of service-based awards requiring continuing employment with the Company, restricted stock subject to trading restrictions, and performance-based awards, which would vest only if certain specified performance and service conditions are met. The awards issued in connection with acquisitions of businesses are subject to the terms and conditions contained in the applicable award agreements and acquisition documents.
Service-Based Awards
The table below summarizes activity related to the Company’s equity-classified and liability-classified service-based awards for the years ended December 31, 2021, 2020 and 2019:
Equity-Classified
Restricted Stock
Equity-Classified
Equity-Settled
Restricted Stock Units
Liability-Classified
Cash-Settled
Restricted Stock Units
 Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Unvested service-based awards outstanding as of January 1, 20191 $63.10 798 $92.13 303 $83.99 
Awards granted$167.18 284 $170.29 56 $170.13 
Awards modified— $— $170.74 $168.36 
Awards vested— $— (287)$87.79 (111)$80.51 
Awards forfeited/cancelled— $— (43)$114.45 (7)$94.77 
Unvested service-based awards outstanding as of December 31, 201910 $162.96 759 $122.48 242 $105.40 
Awards granted— $— 294 $204.57 60 $181.77 
Awards modified— $— (1)$122.55 — $— 
Awards vested(1)$63.10 (317)$108.87 (122)$91.39 
Awards forfeited/cancelled— $— (49)$148.11 (5)$113.94 
Unvested service-based awards outstanding as of December 31, 20209 $167.18 686 $162.15 175 $141.16 
Awards granted— $— 238 $429.41 27 $394.24 
Awards vested— $— (308)$139.83 (86)$118.05 
Awards forfeited/cancelled— $— (40)$264.48 (4)$210.26 
Unvested service-based awards outstanding as of December 31, 20219 $167.18 576 $277.38 112 $217.28 
F-35

The fair value of vested service-based awards (measured at the vesting date) for the years ended December 31, 2021, 2020 and 2019 was as Taxes payable, noncurrentfollows:
 For the Years Ended December 31,
 202120202019
Equity-classified equity-settled
Restricted stock$— $101 $73 
Restricted stock units129,527 60,042 48,111 
Liability-classified cash-settled
Restricted stock units33,947 22,014 18,449 
Total fair value of vested service-based awards$163,474 $82,157 $66,633 
As of December 31, 2021, $0.3 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified restricted stock is expected to be recognized over the weighted-average remaining requisite service period of 0.7 years.
As of December 31, 2021, $112.0 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified RSUs, net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.7 years.
As of December 31, 2021, $38.6 million of total remaining unrecognized stock-based compensation costs related to service-based liability-classified RSUs, net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.3 years.
The liability associated with the Company’s service-based liability-classified RSUs as of December 31, 2018. See2021 and 2020 was $31.5 million and $26.8 million, respectively, and is classified as Accrued compensation and benefits expenses in the consolidated balance sheets.
Performance-Based Awards
The table below summarizes activity related to the Company’s performance-based awards for the years ended December 31, 2021, 2020 and 2019:
Equity-Classified
Equity-Settled
Restricted Stock
Equity-Classified
Equity-Settled
Restricted Stock Units
 Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Unvested performance-based awards outstanding as of January 1, 2019 $ 30 $121.75 
Awards granted$165.87 — $— 
Awards modified— $— (30)$121.75 
Unvested performance-based awards outstanding as of December 31, 20199 $165.87  $ 
Awards granted— $— 31 $210.44 
Awards vested— $— (10)$177.81 
Unvested performance-based awards outstanding as of December 31, 20209 $165.87 21 $227.16 
Awards granted— $— $574.98 
Awards vested $ (4)$177.81 
Awards forfeited $ (2)$334.78 
Unvested performance-based awards outstanding as of December 31, 20219 $165.87 23 $339.69 
F-36

As of December 31, 2021, $0.6 million of total remaining unrecognized stock-based compensation costs related to performance-based equity-classified restricted stock is expected to be recognized over the weighted-average remaining requisite service period of 1.7 years.
As of December 31, 2021, $5.0 million of total remaining unrecognized stock-based compensation cost related to performance-based equity-classified RSUs is expected to be recognized over the weighted-average remaining requisite service period of 3.1 years.
The fair value of vested performance-based awards (measured at the vesting date) for the years ended December 31, 2021, 2020 and 2019 was as follows:
 For the Years Ended December 31,
 202120202019
Equity-classified equity-settled
Restricted stock units$2,215 3,282 $— 
Total fair value of vested performance-based awards$2,215 $3,282 $ 

2021 Employee Stock Purchase Plan
On November 1, 2021, the first offering period of the ESPP commenced. The Company recognizes compensation expense related to shares issued pursuant to the ESPP on a straight-line basis over the six-month offering period. The Company uses the Black-Scholes option pricing model to calculate the fair value of shares issued under the ESPP. The Black-Scholes model relies on a number of key assumptions to calculate estimated fair values. The model incorporated the following weighted-average assumptions for the year ended December 31, 2021:
Expected volatility0023.1 %
Expected term (in years)000.50
Risk-free interest rate000.1 %
Expected dividends00— %
Expected volatility is based on the historical volatility of the Company’s stock price. The expected term represents the purchase period for the ESPP. The risk-free rate is based on the U.S. Treasury yield curve for the period equal to the expected term in effect at the time of grant. The Company has not declared or paid any dividends on its common stock. The Company intends to retain any earnings to fund its operations and the future growth of its business and, therefore, does not anticipate paying any cash dividends in the foreseeable future.
As of December 31, 2021, the weighted average price per share was $659.65 and the weighted average grant-date fair value per share was $141.86. As of December 31, 2021, no purchases have been made under the ESPP as the first anticipated purchase date will be on April 29, 2022. As of December 31, 2021, total unrecognized stock-based compensation cost related to the ESPP was $2.3 million, which is expected to be recognized over a period of 0.33 years.

Commitments for Future Equity Awards
In connection with the Company’s acquisitions of businesses as discussed in Note 7 “Income Taxes”2 “Acquisitions”, EPAM enters into agreements that contractually commit it to granting equity awards at future dates. The agreements are unique to each acquisition and terms vary to specify the number of future awards to be issued or a monetary value that will be settled with equity awards valued at future stock prices.
As of December 31, 2021, the Company has commitments to grant up to $43.6 million of equity awards based on future stock prices. There is a service-based vesting requirement after the grant date associated with these awards and certain of these awards contain performance criteria that will determine the amount of future awards to be issued. These awards are considered granted for additional discussion.accounting purposes. In determining the expense, the Company adjusts the expected settlement based on the probability of achievement of such performance criteria. Related to these awards, the Company recorded $5.5 million, $0.2 million and $0.0 million of stock-based compensation expense in the consolidated statements of income for the years ended December 31, 2021, 2020 and 2019, respectively.

As of December 31, 2021, the Company has commitments to grant 8 thousand RSUs and $2.7 million of equity awards based on future stock prices, which are not considered granted for accounting purposes as the grantee has not yet been
7.INCOME TAXES
Income/(Loss)
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determined. In addition, as of December 31, 2021, the Company has issued 7 thousand PSUs which are not considered granted for accounting purposes as the future vesting conditions have not yet been determined.

13.INCOME TAXES
Income Before Provision for Income Taxes
Income/(loss)Income before provision for income taxes based on geographic location is disclosed in the table below:
For the Years Ended December 31,
 For the Years Ended December 31,202120202019
 2018 2017 2016
Income/(loss) before provision for income taxes:      
Income before provision for income taxes:Income before provision for income taxes:
United States $44,527
 $(6,595) $(9,300)United States$128,498 $100,411 $65,370 
Foreign 205,246
 180,900
 135,766
Foreign404,894 278,068 234,156 
Total $249,773
 $174,305
 $126,466
Total$533,392 $378,479 $299,526 
Provision for Income Taxes
The provision for income taxes consists of the following:
 For the Years Ended December 31,For the Years Ended December 31,
 2018 2017 2016202120202019
Current      Current
Federal $10,814
 $65,571
 $13,324
Federal$22,742 $19,249 $16,943 
State 4,123
 (204) (63)State6,735 7,022 3,610 
Foreign 42,580
 23,617
 17,243
Foreign69,162 45,042 25,680 
Deferred      Deferred
Federal (37,785) 7,235
 (3,581)Federal(40,421)(16,235)(9,425)
State (3,548) (90) 312
State(2,576)(1,682)(358)
Foreign (6,667) 5,416
 (35)Foreign(3,902)(2,077)2,019 
Total $9,517
 $101,545
 $27,200
Total$51,740 $51,319 $38,469 
The
As part of the U.S. Tax Act, significantly changed U.S. corporate income tax laws including a reductionas determined as of December 31, 2017, the U.S. corporate income tax rate from 35.0%Company was required to 21.0% effective January 1, 2018 andmake annual installment payments for the creation of a territorial tax system with a one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax. In addition, the U.S. Tax Act created new taxes on certain foreign-sourced earnings and certain related party payments, which are referred to as GILTI and the base erosion and anti-abuse tax (“BEAT”), respectively.
Due to the timing of the enactment and the complexity involved in applying the provisions of the U.S. Tax Act, the Company made reasonable estimates of the effects and recorded provisional amounts in its financial statements as of December 31, 2017. During the year ended December 31, 2018, the Company completed its analysis of the impact of the U.S. Tax Act and recorded the following adjustments to the recorded provisional amounts:
The one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax requires the Company to pay U.S. income tax at a rate of 15.5% to the extent of foreign cash and certain other net current assets and 8.0% on the remaining earnings. During the year endedAs of December 31, 2017,2021, the Company recorded a provisional incomeremaining unpaid balance of this one-time transition tax expense and corresponding income taxes payable of $64,321was $37.2 million to be paid over the next 8 years associatedin annual installments with the one-time transition tax. During the year ended December 31, 2018, the Company completed its assessment and refined its estimate reducing the provisional charge by $4,935. The total charge for the one-time transition tax now totals $59,386.
In 2017, the Company provisionally reduced its net deferred tax assets by $10,311 reflecting the impact of the changefinal payment due in the U.S. statutory tax rate from 35.0% to 21.0% in the periods in which the net deferred tax assets are expected to be realized as a result of the U.S. Tax Act. In 2018, the Company completed its analysis, and consequently recorded an additional charge of $926 to further reduce its net deferred tax assets for a total charge of $11,237.

In 2017, the Company reassessed its accumulated foreign earnings in light of the U.S. Tax Act and determined $97,000 of its accumulated earnings in Belarus were no longer indefinitely reinvested. As a result, the Company recorded a charge of $4,850 in the provision for income taxes during the year ended December 31, 2017 for the withholding tax payable to Belarus when the earnings are distributed. In 2018, the Company remitted this full amount of accumulated earnings as dividends and also remitted as dividends certain earnings of its foreign subsidiaries in Canada, Cyprus, Ireland and Russia and additional earnings in Belarus. Based on proposed tax regulations issued by the U.S. Treasury Department during 2018, it was determined that an offsetting U.S. foreign tax credit could be claimed for the withholding tax paid to Belarus resulting in a net $4,850 income tax benefit recognized during the year ended December 31, 2018.2025.
As of December 31, 2018,2021, the Company has determined that allhad approximately $1,239.1 million of accumulated undistributed foreign earnings of $700,327that are expected to be indefinitely reinvested. Due to the enactment of the U.S. Tax Act and the one-time transition tax on accumulated foreign subsidiary earnings, these accumulated foreign earnings are no longer expected to be subject to U.S. federal income tax if repatriated but could be subject to state and foreign income and withholding taxes.

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Effective Tax Rate Reconciliation
The reconciliation of the provision for income taxes at the federal statutory income tax rate to ourthe Company’s effective income tax rate is as follows:
 For the Years Ended December 31,For the Years Ended December 31,
 2018 2017 2016202120202019
Provision for income taxes at federal statutory rate $52,452
 $61,007
 $44,263
Provision for income taxes at federal statutory rate$112,016 $79,481 $62,898 
Increase/(decrease) in taxes resulting from:      Increase/(decrease) in taxes resulting from:
Impact from U.S. Tax Act (4,009) 74,632
 
Entity classification election deferred tax asset impact (25,962) 
 
GILTI and BEAT U.S. taxes 1,526
 
 
GILTI and BEAT U.S. taxes229 191 (926)
Excess tax benefits relating to stock-based compensation (17,370) (9,307) 
Excess tax benefits relating to stock-based compensation(71,628)(36,646)(28,385)
Subsidiary withholding tax liability and related foreign tax credit (4,850) 4,850
 
Foreign tax expense and tax rate differential (88) (39,997) (33,477)Foreign tax expense and tax rate differential(206)(387)(1,402)
Effect of permanent differences 2,724
 3,205
 5,042
Effect of permanent differences4,756 3,507 3,264 
State taxes, net of federal benefit 3,452
 (116) 1,192
State taxes, net of federal benefit9,192 5,323 2,971 
Change in valuation allowance 151
 783
 
Stock-based compensation expense 652
 6,908
 9,535
Stock-based compensation expense1,102 44 571 
Tax creditsTax credits(4,100)— — 
Other 839
 (420) 645
Other379 (194)(522)
Provision for income taxes $9,517
 $101,545
 $27,200
Provision for income taxes$51,740 $51,319 $38,469 
The Company’s worldwide effective tax rate for the years ended December 31, 2018, 20172021, 2020 and 20162019 was 3.8%9.7%, 58.3%13.6% and 21.5%12.8%, respectively. The provision for income taxes in the year ended December 31, 20182021 was favorably impacted by the recognition of $25,962$4.1 million of net deferredcertain tax assetscredits, of which $2.7 million were a one-time benefit resulting from the Company’s decision to change thecredit claims for previous tax status and to classify most of its foreign subsidiaries as disregarded for U.S. income tax purposes. This change subjects the income of the disregarded foreign subsidiaries to U.S. income taxation, resulting in a reduced foreign tax rate differential benefit in 2018 as compared to 2017 and 2016.periods. In addition, following the adoption of ASU No. 2016-09, Compensation — Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting on January 1, 2017, the Company recorded excess tax benefits upon vesting or exercise of stock-based awards of $17,370$71.6 million, $36.6 million and $9,307$28.4 million during the years ended December 31, 20182021, 2020 and 2017,2019, respectively.
In Belarus, member technology companies of High-Technologies Park, including ourthe Company’s local subsidiary, have a full exemption from Belarus income tax on qualifying income through January 2049. However, beginning February 1, 2018, the earnings of the Company’s Belarus local subsidiary arebecame subject to U. S. income taxation due to the Company’s decision to change the tax status of the subsidiary. Consequently, thereThere was less income tax benefit from the Belarus tax exemption for the year ended December 31, 2018 compared to previous years. Theno aggregate dollar benefitsbenefit derived or impact on diluted net income per share from this tax holiday approximated $1,352, $15,503 and $13,605 for the years ended December 31, 2018, 20172021, 2020 and 2016, respectively. The benefit the tax holiday had on diluted net income per share approximated $0.02, $0.28 and $0.26 for the years ended December 31, 2018, 2017 and 2016, respectively.2019.


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Deferred Income Taxes
Deferred income taxes reflect the net effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows:
 As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
As of December 31, 2021As of December 31, 2020
Deferred tax assets:    Deferred tax assets:
Property and equipment $4,531
 $170
Property and equipment$10,561 $8,164 
Intangible assets 1,262
 1,456
Intangible assets2,220 827 
Accrued expenses 32,067
 4,392
Accrued expenses90,754 50,639 
Net operating loss carryforward 4,983
 5,069
Net operating loss carryforward4,988 6,089 
Deferred revenue 5,802
 1,280
Deferred revenue4,551 9,796 
Stock-based compensation 27,558
 16,197
Stock-based compensation31,959 30,112 
Operating lease liabilitiesOperating lease liabilities52,806 51,519 
Foreign tax creditForeign tax credit7,589 2,168 
Foreign currency exchange 5,772
 
Foreign currency exchange11,750 4,890 
Other assets 782
 1,415
Other assets2,235 1,252 
Deferred tax assets $82,757
 $29,979
Deferred tax assets$219,413 $165,456 
Less: valuation allowance (3,189) (924)Less: valuation allowance(4,538)(5,485)
Total deferred tax assets $79,568
 $29,055
Total deferred tax assets$214,875 $159,971 
    
Deferred tax liabilities:    Deferred tax liabilities:
Property and equipment

 $1,480
 $1,868
Property and equipment
$1,095 $3,818 
Intangible assets 5,582
 3,077
Intangible assets26,124 12,018 
Operating lease right-of-use assets
Operating lease right-of-use assets
51,871 50,149 
Accrued revenue and expenses 1,540
 1,352
Accrued revenue and expenses2,953 991 
U.S. taxation of foreign subsidiaries 3,000
 
U.S. taxation of foreign subsidiaries3,770 1,608 
Subsidiary withholding tax liability 
 4,850
Stock-based compensation 
 1,498
Foreign currency exchangeForeign currency exchange239 1,153 
Other liabilities 933
 239
Other liabilities3,210 1,095 
Total deferred tax liabilities $12,535
 $12,884
Total deferred tax liabilities$89,262 $70,832 
Net deferred tax assets $67,033
 $16,171
Net deferred tax assets$125,613 $89,139 
As of December 31, 20182021 and 2017,2020, the Company classified $2,950$18.3 million and $8,803,$3.3 million, respectively, of deferred tax liabilities as Other noncurrent liabilities in the consolidated balance sheets.
Included in the stock-based compensation expense deferred tax asset at December 31, 20182021 and 20172020 is $7,561$5.4 million and $8,512,$6.1 million, respectively, that is related to acquisitions and is amortized for tax purposes over a 10 to 15-year period.
As of December 31, 2018,2021, the Company’s domestic and foreign net operating loss (“NOL”) carryforwards for income tax purposes were approximately $4,183$2.8 million and $22,808,$18.9 million, respectively. If not utilized, the domestic NOL carryforwards will begin to expire in 2021.2022. The foreign NOL carryforwards include $7,031$9.7 million from jurisdictions with no expiration date, with the remainder expiring as follows: $2,309 in 2019, $404 in 2020, $5,098 in 2021, $5,678$1.2 million in 2022, $1,501$1.3 million in 2023, $2.0 million in 2024, $3.0 million in 2025, and $787 beyond 2023.$1.7 million in 2026. The Company maintains a valuation allowance maintained byprimarily related to the Company as of December 31, 2018 relates primarily to net operating loss carryforwards of $18,123 in certain foreign jurisdictions that itthe Company believes are not likely to be realized.realized, which totaled $17.5 million as of December 31, 2021.

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Unrecognized Tax BenefitsStock Options
AsStock option activity under the Company’s plans is set forth below:
 Number of
Options
Weighted Average
Exercise Price 
Aggregate
Intrinsic Value 
Weighted Average
Remaining Contractual Term (in years)
Options outstanding as of January 1, 20194,083 $44.54 $291,846 
Options granted132 $169.13 
Options modified18 $163.55 
Options exercised(899)$41.21 
Options forfeited/cancelled(11)$97.83 
Options outstanding as of December 31, 20193,323 $50.85 $536,015 
Options granted158 $187.76 
Options modified— $— 
Options exercised(700)$37.79 
Options forfeited/cancelled(9)$119.30 
Options outstanding as of December 31, 20202,772 $61.71 $822,152 
Options granted94 $410.03 
Options exercised(536)$49.13 
Options forfeited/cancelled(12)$248.74 
Options outstanding as of December 31, 20212,318 $77.79 $1,369,132 3.7
Options vested and exercisable as of December 31, 20212,018 $53.27 $1,241,261 3.0
Options expected to vest as of December 31, 2021284 $240.03 $121,544 8.1
The fair value of December 31, 2018each option award is estimated on the date of grant using the Black-Scholes option valuation model. The model incorporated the following weighted-average assumptions:
For the Years Ended December 31,
202120202019
Expected volatility35.3 %36.9 %33.5 %
Expected term (in years)6.246.256.25
Risk-free interest rate1.2 %0.5 %2.3 %
Expected dividends— %— %— %
Expected volatility is based on the historical volatility of the Company’s stock price. The expected term represents the period of time that options granted are expected to be outstanding. The risk-free rate is based on the U.S. Treasury yield curve for the periods equal to the expected term of the options in effect at the time of grant. The Company has not declared or paid any dividends on its common stock. The Company intends to retain any earnings to fund operations and 2017, unrecognized tax benefitsfuture growth of $1,432its business and, $699, respectively, are includedtherefore, does not anticipate paying any cash dividends in Taxes payable, noncurrent within the consolidated balance sheets. These amounts are netforeseeable future.
The weighted-average grant-date fair value of available foreign tax credit benefits and represent the amount of unrecognized tax benefits that, if recognized, would favorably affect the effective tax rate in future periods. There were no significant new tax positions that resulted in unrecognized tax benefits or reversal of prior year tax positionsstock options granted during the years ended December 31, 2018, 20172021, 2020 and 2016. There were no tax positions for which it2019 was reasonably possible that unrecognized tax benefits will significantly increase or decrease within twelve months$149.26, $68.53 and $63.12, respectively. The total intrinsic value of options exercised during the reporting date.years ended December 31, 2021, 2020 and 2019 was $251.9 million, $151.3 million and $121.1 million, respectively.

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The Company files income tax returnsrecognizes the fair value of each option as compensation expense on a straight-line basis over the requisite service period, which is generally the vesting period. The options are typically scheduled to vest over four years from the time of grant, subject to the terms of the applicable plan and stock option agreement. The Company records share-based compensation expense only for those awards that are expected to vest and as such, the Company applies an estimated forfeiture rate at the time of grant and adjusts the forfeiture rate estimate quarterly to reflect actual forfeiture activity. In general, in the United Statesevent of a participant’s voluntary termination of service, unvested options are forfeited as of the date of such termination without any payment to the participant and in various state, localthe cumulative amount of previously recognized expense related to the forfeited options is reversed.
As of December 31, 2021, $18.7 million of total remaining unrecognized compensation cost related to unvested stock options, net of estimated forfeitures, is expected to be recognized over a weighted-average period of 2.7 years.
Restricted Stock and foreign jurisdictions. Restricted Stock Units
The Company grants restricted stock units (“RSUs”) to Company personnel and non-employee directors under the Company’s significant tax jurisdictions are2015 Plan (and prior to its approval, under the United States, Russia, Germany, Ukraine, the United Kingdom, Hungary, Switzerland, Netherlands, Poland2012 Plan) and India. The tax years subsequent to 2014 remain open to examination by the United States Internal Revenue Service and generally, the tax years subsequent to 2014 remain open to examination by various state and local taxing authorities and various foreign taxing authorities.
8.LONG-TERM DEBT
Revolving Line of Credit — On September 12, 2014,2012 Directors Plan, respectively. In addition, the Company entered into a revolving loan agreement (the “2014 Credit Facility”)has issued in the past, and may issue in the future, its equity securities to compensate employees of acquired businesses for future services. Equity-based awards granted in connection with PNC Bank, National Association; Santander Bank, N.A;acquisitions of businesses may be issued in the form of service-based awards requiring continuing employment with the Company, restricted stock subject to trading restrictions, and Silicon Valley Bank (collectively the “2014 Lenders”). Under the 2014 Credit Facility, the Company’s borrowing capacity was set at $100,000, with potential to increase it to $200,000performance-based awards, which would vest only if certain conditions were met.
Borrowings under the 2014 Credit Facility were denominated in U.S. dollars or, up to a maximum of $50,000 in British pounds, Canadian dollars, eurosspecified performance and Swiss francs and other currencies as may be approved by the administrative agent and the 2014 Lenders. Borrowings under the 2014 Credit Facility bore interest at either a base rate or Euro-rate plus a margin based on the Company’s leverage ratio. The base rate was equal to the highest of (a) the Federal Funds Open Rate, plus 0.5%, (b) the Prime Rate, and (c) the Daily LIBOR Rate, plus 1.0%.
On May 24, 2017, the Company terminated the 2014 Credit Facility and entered into a new unsecured credit facility (the “2017 Credit Facility”), as may be amended from time to time, with PNC Bank, National Association; PNC Capital Markets LLC; Citibank N.A.; Wells Fargo Bank, National Association; Fifth Third Bank and Santander Bank, N.A. (collectively the “Lenders”). The 2017 Credit Facility provides for a borrowing capacity of $300,000, with potential to increase the credit facility up to $400,000 if certainservice conditions are met. The 2017 Credit Facility matures on May 24, 2022.awards issued in connection with acquisitions of businesses are subject to the terms and conditions contained in the applicable award agreements and acquisition documents.
Borrowings under the 2017 Credit Facility may be denominated in U.S. dollars or upService-Based Awards
The table below summarizes activity related to a maximum of $100,000 in British pounds, Canadian dollars, euros and Swiss francs and other currencies as may be approved by the administrative agent and the Lenders. Borrowings under the 2017 Credit Facility bear interest at either a base rate or Euro-rate plus a margin based on the Company’s leverage ratio. equity-classified and liability-classified service-based awards for the years ended December 31, 2021, 2020 and 2019:
Equity-Classified
Restricted Stock
Equity-Classified
Equity-Settled
Restricted Stock Units
Liability-Classified
Cash-Settled
Restricted Stock Units
 Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Unvested service-based awards outstanding as of January 1, 20191 $63.10 798 $92.13 303 $83.99 
Awards granted$167.18 284 $170.29 56 $170.13 
Awards modified— $— $170.74 $168.36 
Awards vested— $— (287)$87.79 (111)$80.51 
Awards forfeited/cancelled— $— (43)$114.45 (7)$94.77 
Unvested service-based awards outstanding as of December 31, 201910 $162.96 759 $122.48 242 $105.40 
Awards granted— $— 294 $204.57 60 $181.77 
Awards modified— $— (1)$122.55 — $— 
Awards vested(1)$63.10 (317)$108.87 (122)$91.39 
Awards forfeited/cancelled— $— (49)$148.11 (5)$113.94 
Unvested service-based awards outstanding as of December 31, 20209 $167.18 686 $162.15 175 $141.16 
Awards granted— $— 238 $429.41 27 $394.24 
Awards vested— $— (308)$139.83 (86)$118.05 
Awards forfeited/cancelled— $— (40)$264.48 (4)$210.26 
Unvested service-based awards outstanding as of December 31, 20219 $167.18 576 $277.38 112 $217.28 
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The base rate is equal tofair value of vested service-based awards (measured at the highest of (a)vesting date) for the Overnight Bank Funding Rate, plus 0.5%, (b) the Prime Rate, or (c) the Daily LIBOR Rate, plus 1.0%. years ended December 31, 2021, 2020 and 2019 was as follows:
 For the Years Ended December 31,
 202120202019
Equity-classified equity-settled
Restricted stock$— $101 $73 
Restricted stock units129,527 60,042 48,111 
Liability-classified cash-settled
Restricted stock units33,947 22,014 18,449 
Total fair value of vested service-based awards$163,474 $82,157 $66,633 
As of December 31, 2018,2021, $0.3 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified restricted stock is expected to be recognized over the Company’s outstanding borrowings are subject to a LIBOR-based interest rate, which resets regularly at issuance, based on lending terms.weighted-average remaining requisite service period of 0.7 years.
The 2017 Credit Facility includes customary business and financial covenants that may restrict the Company’s ability to make or pay dividends (other than certain intercompany dividends) if a potential or an actual event of default has occurred or would be triggered. As of December 31, 2018,2021, $112.0 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified RSUs, net of estimated forfeitures, is expected to be recognized over the Company was in compliance with all covenants contained in the 2017 Credit Facility.
The following table presents the outstanding debt and borrowing capacityweighted-average remaining requisite service period of the Company under the 2017 Credit Facility:
 As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
Outstanding debt$25,000
 $25,000
Interest rate3.5% 2.6%
Irrevocable standby letters of credit$382
 $1,294
Available borrowing capacity$274,618
 $273,706
Current maximum borrowing capacity$300,000
 $300,000
2.7 years.
As part of December 31, 2021, $38.6 million of total remaining unrecognized stock-based compensation costs related to service-based liability-classified RSUs, net of estimated forfeitures, is expected to be recognized over the acquisitionweighted-average remaining requisite service period of Continuum, the Company assumed $3,448 of long-term debt2.3 years.
The liability associated with a leased facility and payable to Continuum’s landlord. The debt was payable in monthly installments through March, 2029 and bore interest at a rate of 8% per annum. In March 2018, the Company paid $3,448 to settle this assumed long-term debt.

9.REVENUES
Disaggregation of Revenues
The following tables show the disaggregation of the Company’s revenues by major customer location, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 15 “Segment Information”)service-based liability-classified RSUs as of December 31, 2021 and 2020 was $31.5 million and $26.8 million, respectively, and is classified as Accrued compensation and benefits expenses in the consolidated balance sheets.
Performance-Based Awards
The table below summarizes activity related to the Company’s performance-based awards for the years ended December 31, 2021, 2020 and 2019:
Equity-Classified
Equity-Settled
Restricted Stock
Equity-Classified
Equity-Settled
Restricted Stock Units
 Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Unvested performance-based awards outstanding as of January 1, 2019 $ 30 $121.75 
Awards granted$165.87 — $— 
Awards modified— $— (30)$121.75 
Unvested performance-based awards outstanding as of December 31, 20199 $165.87  $ 
Awards granted— $— 31 $210.44 
Awards vested— $— (10)$177.81 
Unvested performance-based awards outstanding as of December 31, 20209 $165.87 21 $227.16 
Awards granted— $— $574.98 
Awards vested $ (4)$177.81 
Awards forfeited $ (2)$334.78 
Unvested performance-based awards outstanding as of December 31, 20219 $165.87 23 $339.69 
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As of December 31, 2021, $0.6 million of total remaining unrecognized stock-based compensation costs related to performance-based equity-classified restricted stock is expected to be recognized over the weighted-average remaining requisite service period of 1.7 years.
As of December 31, 2021, $5.0 million of total remaining unrecognized stock-based compensation cost related to performance-based equity-classified RSUs is expected to be recognized over the weighted-average remaining requisite service period of 3.1 years.
The fair value of vested performance-based awards (measured at the vesting date) for the years ended December 31, 2021, 2020 and 2019 was as follows:
 For the Years Ended December 31,
 202120202019
Equity-classified equity-settled
Restricted stock units$2,215 3,282 $— 
Total fair value of vested performance-based awards$2,215 $3,282 $ 

2021 Employee Stock Purchase Plan
On November 1, 2021, the first offering period of the ESPP commenced. The Company recognizes compensation expense related to shares issued pursuant to the ESPP on a straight-line basis over the six-month offering period. The Company uses the Black-Scholes option pricing model to calculate the fair value of shares issued under the ESPP. The Black-Scholes model relies on a number of key assumptions to calculate estimated fair values. The model incorporated the following weighted-average assumptions for the year ended December 31, 2018:
2021:
 Year Ended December 31, 2018
Reportable SegmentsNorth America Europe Russia Total Segment Revenues Other Income Included in Segment Revenues Consolidated Revenues
Customer Locations           
North America$1,046,333
 $52,859
 $75
 $1,099,267
 $(100)
$1,099,167
Europe16,693
 596,559
 52
 613,304
 (832)
612,472
CIS8,437
 336
 72,930
 81,703
 

81,703
APAC5,631
 44,113
 91
 49,835
 (265)
49,570
        Revenues$1,077,094
 $693,867
 $73,148
 $1,844,109
 $(1,197) $1,842,912
Expected volatility0023.1 %
Expected term (in years)000.50
Risk-free interest rate000.1 %
Expected dividends00— %
The following tables showExpected volatility is based on the disaggregationhistorical volatility of the Company’s revenues by industry vertical, including a reconciliation ofstock price. The expected term represents the disaggregated revenues with the Company’s reportable segments (Note 15 “Segment Information”)purchase period for the year endedESPP. The risk-free rate is based on the U.S. Treasury yield curve for the period equal to the expected term in effect at the time of grant. The Company has not declared or paid any dividends on its common stock. The Company intends to retain any earnings to fund its operations and the future growth of its business and, therefore, does not anticipate paying any cash dividends in the foreseeable future.
As of December 31, 2018:
 Year Ended December 31, 2018
Reportable SegmentsNorth America Europe Russia Total Segment Revenues Other Income Included in Segment Revenues Consolidated Revenues
Industry Verticals           
Financial Services$112,528
 $253,089
 $59,337
 $424,954
 $(977) $423,977
Travel & Consumer177,913
 208,445
 7,467
 393,825
 (182) 393,643
Software & Hi-Tech269,067
 79,121
 2,627
 350,815
 
 350,815
Business Information & Media251,081
 72,898
 54
 324,033
 
 324,033
Life Sciences & Healthcare151,449
 20,272
 13
 171,734
 (31) 171,703
Emerging Verticals115,056
 60,042
 3,650
 178,748
 (7) 178,741
        Revenues$1,077,094
 $693,867
 $73,148
 $1,844,109
 $(1,197) $1,842,912
The following tables show2021, the disaggregationweighted average price per share was $659.65 and the weighted average grant-date fair value per share was $141.86. As of the Company’s revenues by contract type, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 15 “Segment Information”) for the year ended December 31, 2018:
 Year Ended December 31, 2018
Reportable SegmentsNorth America Europe Russia Total Segment Revenues Other Income Included in Segment Revenues Consolidated Revenues
Contract Types           
Time-and-material$983,433
 $628,710
 $40,754
 $1,652,897
 $
 $1,652,897
Fixed-price89,831
 62,078
 32,342
 184,251
 
 184,251
Licensing2,748
 1,332
 17
 4,097
 
 4,097
Other revenues1,082
 1,747
 35
 2,864
 (1,197) 1,667
        Revenues$1,077,094
 $693,867
 $73,148
 $1,844,109
 $(1,197) $1,842,912

Timing2021, no purchases have been made under the ESPP as the first anticipated purchase date will be on April 29, 2022. As of Revenue Recognition
The following tables show the timing of revenue recognition:
 Year Ended December 31, 2018
Reportable SegmentsNorth America Europe Russia Total Segment Revenues Other Income Included in Segment Revenues Consolidated Revenues
Timing of Revenue Recognition           
Transferred over time$1,076,083
 $692,024
 $73,135
 $1,841,242
 $
 $1,841,242
Transferred at a point of time1,011
 1,843
 13
 2,867
 (1,197) 1,670
        Revenues$1,077,094
 $693,867
 $73,148
 $1,844,109
 $(1,197) $1,842,912
During the year ended December 31, 2018,2021, total unrecognized stock-based compensation cost related to the Company recognized $5,736 of revenues from performance obligations satisfied in previous periods.
The following table includes the estimated revenuesESPP was $2.3 million, which is expected to be recognized over a period of 0.33 years.

Commitments for Future Equity Awards
In connection with the Company’s acquisitions of businesses as discussed in Note 2 “Acquisitions”, EPAM enters into agreements that contractually commit it to granting equity awards at future dates. The agreements are unique to each acquisition and terms vary to specify the number of future related to performance obligations that are partially or fully unsatisfied as of December 31, 2018. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts that (i) have an original expected duration of one year or less and (ii) contracts for which it recognizes revenues at the amount to which it has the right to invoice for services provided:
 Less than 1 year 1 Year 2 Years 3 Years Total
Contract Type         
Fixed-price$7,202
 $402
 $56
 $
 $7,660
The Company applies a practical expedient and does not disclose the amount of the transaction price allocated to the remaining performance obligations nor provide an explanation of when the Company expects to recognize that amount as revenue for certain variable consideration.
Contract Balances
The following table provides information on the classification of contract assets and liabilities in the consolidated balance sheets:
 As of  
 December 31, 
 2018
 
As of
January 1,
2018
Contract assets included in Unbilled revenues$13,522
 $7,901
Contract liabilities included in Accrued expenses and other current liabilities$4,558
 $4,498
Contract liabilities included in Other noncurrent liabilities$224
 $
Contract assets included in unbilled revenues are recorded when services have been provided but the Company does not have an unconditional right to receive consideration. The Company recognizes an impairment loss when the contract carrying amount is greater than the remaining consideration receivable, less directly related costsawards to be incurred. Contract assets have increased from January 1, 2018 primarily due to new contracts entered into in 2018 where the Company’s right to bill is contingent upon achievement of contractual milestones.issued or a monetary value that will be settled with equity awards valued at future stock prices.
Contract liabilities comprise amounts collected from the Company’s customers for revenues not yet earned. Such amounts are anticipated to be recorded as revenues when services are performed in subsequent periods. During the year ended December 31, 2018, the Company recognized $3,810 of revenues that were included in Accrued expenses and other current liabilities at January 1, 2018.

10.DERIVATIVE FINANCIAL INSTRUMENTS
The Company conducts a large portion of its operations in international markets that subject it to foreign currency fluctuations. To manage the risk of fluctuations in foreign currency exchange rates, during the year ended December 31, 2018, the Company implemented a hedging program whereby it entered into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Russian ruble, Polish zloty and Indian rupee transactions.
The Company measures derivative instruments and hedging activities at fair value and recognizes them as either assets or liabilities in its consolidated balance sheets. Accounting for the gains and losses resulting from changes in fair value depends on the use of the derivative and whether it is designated and qualifies for hedge accounting. To receive hedge accounting treatment, all hedging relationships are formally documented at the inception of the hedge, and the hedges must be highly effective in offsetting changes to future cash flows on hedged transactions. As of December 31, 2018, all of2021, the Company’s foreign exchange forward contracts were designated as hedges.
Derivatives may give rise to credit risks from the possible non-performance by counterparties. The Company has limited its credit risk by entering into derivative transactions onlycommitments to grant up to $43.6 million of equity awards based on future stock prices. There is a service-based vesting requirement after the grant date associated with highly-rated financial institutionsthese awards and by conducting an ongoing evaluationcertain of these awards contain performance criteria that will determine the creditworthinessamount of future awards to be issued. These awards are considered granted for accounting purposes. In determining the financial institutions with whichexpense, the Company does business. There is no financial collateral (including cash collateral) requiredadjusts the expected settlement based on the probability of achievement of such performance criteria. Related to be posted bythese awards, the Company related to the foreign exchange forward contracts.
The fair valuerecorded $5.5 million, $0.2 million and $0.0 million of derivative instruments on the Company’s consolidated balance sheets as of December 31, 2018 and December 31, 2017 were as follows:
    As of December 31, 2018 As of December 31, 2017
  Balance Sheet Classification Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives
Foreign exchange forward contracts -
Designated as hedging instruments
 Prepaid and other current assets $181
   $
  
  Accrued expenses and other current liabilities   $3,475
   $
           
Foreign exchange forward contracts -
Not designated as hedging instruments
 Prepaid and other current assets $
   $114
  
The changesstock-based compensation expense in the fair value of foreign currency derivative instruments in our consolidated statements of income and comprehensive income for the years ended December 31, 2018, 20172021, 2020 and 2016 were2019, respectively.
As of December 31, 2021, the Company has commitments to grant 8 thousand RSUs and $2.7 million of equity awards based on future stock prices, which are not considered granted for accounting purposes as follows:the grantee has not yet been
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Table of Contents
 Year Ended December 31,
 2018 2017 2016
Foreign exchange forward contracts - Designated as hedging instruments:     
Change in fair value recognized in Accumulated other comprehensive loss$(3,294) $
 $
Net loss reclassified from Accumulated other comprehensive loss into Cost of revenues (exclusive of depreciation and amortization)$(4,161) $
 $
Foreign exchange forward contracts - Not designated as hedging instruments:     
Net gain recognized in Foreign exchange gain/(loss)$44
 $425
 $92

11.FAIR VALUE MEASUREMENTS
The Company carries certain assets and liabilities at fair value on a recurring basis on its consolidated balance sheets. The following table shows the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basisdetermined. In addition, as of December 31, 2018:2021, the Company has issued 7 thousand PSUs which are not considered granted for accounting purposes as the future vesting conditions have not yet been determined.

13.INCOME TAXES
  As of December 31, 2018
  Balance Level 1 Level 2 Level 3
Foreign exchange derivative assets $181
 $
 $181
 $
Total assets measured at fair value on a recurring basis $181
 $
 $181
 $
         
Foreign exchange derivative liabilities $3,475
 $
 $3,475
 $
Contingent consideration 7,468
 
 
 7,468
Total liabilities measured at fair value on a recurring basis $10,943
 $
 $3,475
 $7,468
Income Before Provision for Income Taxes
Income before provision for income taxes based on geographic location is disclosed in the table below:
For the Years Ended December 31,
202120202019
Income before provision for income taxes:
United States$128,498 $100,411 $65,370 
Foreign404,894 278,068 234,156 
Total$533,392 $378,479 $299,526 
Provision for Income Taxes
The Company had no material financial assets or liabilities measured at fair value on a recurring basisprovision for income taxes consists of the following:
For the Years Ended December 31,
202120202019
Current
Federal$22,742 $19,249 $16,943 
State6,735 7,022 3,610 
Foreign69,162 45,042 25,680 
Deferred
Federal(40,421)(16,235)(9,425)
State(2,576)(1,682)(358)
Foreign(3,902)(2,077)2,019 
Total$51,740 $51,319 $38,469 

As part of the U.S. Tax Act, as determined as of December 31, 2017.
Our Level 22017, the Company was required to make annual installment payments for the one-time transition tax on accumulated foreign exchange derivatives are valued using pricing modelssubsidiary earnings not previously subject to U.S. income tax at a rate of 15.5% to the extent of foreign cash and discounted cash flow methodologies basedcertain other net current assets and 8.0% on observable foreign exchange data at the measurement date. See Note 10 “Derivative Financial Instruments” for further information regarding the Company’s derivative financial instruments.
remaining earnings. As of December 31, 2018, contingent consideration included amounts payable2021, the remaining unpaid balance of this one-time transition tax was $37.2 million to be paid in cash in connectionannual installments with the acquisitionsfinal payment due in 2025.
As of Continuum and Think (Note 2 “Acquisitions”). The fair valueDecember 31, 2021, the Company had approximately $1,239.1 million of accumulated undistributed foreign earnings that are expected to be indefinitely reinvested. Due to the enactment of the contingent consideration is basedU.S. Tax Act and the one-time transition tax on theaccumulated foreign subsidiary earnings, these accumulated foreign earnings are no longer expected future payments to be madesubject to the sellers of the acquired businesses in accordance with the provisions outlined in the respective purchase agreements. In determining fair value, the Company considered a variety of factors, including future performance of the acquired businesses using financial projections developed by the CompanyU.S. federal income tax if repatriated but could be subject to state and market risk assumptions that were derived for revenue growth and earnings before interest and taxes. The Company estimated future payments using the earnout formulas and performance targets specified in the purchase agreements and adjusted those estimates to reflect the probability of their achievement. Those estimated future payments were then discounted to present value using a rate based on the weighted-average cost of capital of guideline companies. Although there is significant judgment involved, the Company believes its estimates and assumptions are reasonable. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earnout criteria would result in a change in the fair value of the recorded contingent liabilities. Such changes, if any, are recorded within Interest and other income, net in the Company’s consolidated statement offoreign income and comprehensive income.withholding taxes.
A
F-38

Effective Tax Rate Reconciliation
The reconciliation of the beginningprovision for income taxes at the federal statutory income tax rate to the Company’s effective income tax rate is as follows:
For the Years Ended December 31,
202120202019
Provision for income taxes at federal statutory rate$112,016 $79,481 $62,898 
Increase/(decrease) in taxes resulting from:
GILTI and BEAT U.S. taxes229 191 (926)
Excess tax benefits relating to stock-based compensation(71,628)(36,646)(28,385)
Foreign tax expense and tax rate differential(206)(387)(1,402)
Effect of permanent differences4,756 3,507 3,264 
State taxes, net of federal benefit9,192 5,323 2,971 
Stock-based compensation expense1,102 44 571 
Tax credits(4,100)— — 
Other379 (194)(522)
Provision for income taxes$51,740 $51,319 $38,469 
The Company’s worldwide effective tax rate for the years ended December 31, 2021, 2020 and ending balances of acquisition-related contractual contingent liabilities using significant unobservable inputs (Level 3)2019 was 9.7%, 13.6% and 12.8%, respectively. The provision for income taxes in the year ended December 31, 2016 is as follows:
  Amount
Contractual contingent liabilities as of January 1, 2016 $5,364
Acquisition date fair value of contractual contingent liabilities — other acquisitions 800
Liability-classified stock-based awards 5,148
Changes in fair value of contractual contingent liabilities included in Selling, general and administrative
expenses
 1,232
Changes in fair value of contractual contingent liabilities recorded against goodwill 200
Settlements of contractual contingent liabilities (8,955)
Reclassification of contractual contingent liabilities out of Level 3 (3,789)
Contractual contingent liabilities as of December 31, 2016 $

The2021 was favorably impacted by the recognition of $4.1 million of certain tax credits, of which $2.7 million were a one-time benefit resulting from credit claims for previous tax periods. In addition, the Company had no activity related to contractual contingent liabilitiesrecorded excess tax benefits upon vesting or exercise of stock-based awards of $71.6 million, $36.6 million and $28.4 million during the yearyears ended December 31, 2017.2021, 2020 and 2019, respectively.
A reconciliationIn Belarus, member technology companies of High-Technologies Park, including the Company’s local subsidiary, have a full exemption from Belarus income tax on qualifying income through January 2049. However, beginning February 1, 2018, the earnings of the beginning and ending balancesCompany’s Belarus local subsidiary became subject to U. S. income taxation due to the Company’s decision to change the tax status of acquisition-related contractual contingent liabilities using significant unobservable inputs (Level 3)the subsidiary. There was no aggregate dollar benefit derived or impact on diluted net income per share from this tax holiday for the yearyears ended December 31, 2018 is as follows:2021, 2020 and 2019.

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Table of Contents
  Amount
Contractual contingent liabilities as of December 31, 2017 $
Acquisition date fair value of contingent consideration — Continuum acquisition (Note 2) 2,400
Acquisition date fair value of contingent consideration — Think acquisition (Note 2) 5,990
Changes in fair value of contingent consideration included in Interest and other income, net (Note 2) (900)
Effect of net foreign currency exchange rate changes (22)
Contractual contingent liabilities as of December 31, 2018 $7,468
Deferred Income Taxes
EstimatesDeferred income taxes reflect the net effects of fair value of financial instruments not carried at fair value on a recurring basis ontemporary differences between the Company’s consolidated balance sheets are generally subjective in nature, and are determined as of a specific point in time based on the characteristics of the financial instruments and relevant market information. The Company uses the following methods to estimate the fair values of its financial instruments:
for financial instruments that have quoted market prices, those quoted prices are used to estimate fair value;
for financial instruments for which no quoted market prices are available, fair value is estimated using information obtained from independent third parties, or by discounting the expected cash flows using an estimated current market interest rate for the financial instrument;
for financial instruments for which no quoted market prices are available and that have no defined maturity, have a remaining maturity of 360 days or less, or reprice frequently to a market rate, the Company assumes that the fair value of these instruments approximates their reported value, after taking into consideration any applicable credit risk.
The generally short duration of certain of the Company’s assets and liabilities results in a significant numbercarrying amounts of assets and liabilities for which fair value equals or closely approximatesfinancial reporting purposes and the amount recorded onamounts used for income tax purposes. Significant components of the Company’s consolidated balance sheets. The Company’s financialdeferred tax assets and liabilities that are not carried at fair value on a recurring basis on the Company’s consolidated balance sheets are as follows:
cash
As of December 31, 2021As of December 31, 2020
Deferred tax assets:
Property and equipment$10,561 $8,164 
Intangible assets2,220 827 
Accrued expenses90,754 50,639 
Net operating loss carryforward4,988 6,089 
Deferred revenue4,551 9,796 
Stock-based compensation31,959 30,112 
Operating lease liabilities52,806 51,519 
Foreign tax credit7,589 2,168 
Foreign currency exchange11,750 4,890 
Other assets2,235 1,252 
Deferred tax assets$219,413 $165,456 
Less: valuation allowance(4,538)(5,485)
Total deferred tax assets$214,875 $159,971 
Deferred tax liabilities:
Property and equipment
$1,095 $3,818 
Intangible assets26,124 12,018 
Operating lease right-of-use assets
51,871 50,149 
Accrued revenue and expenses2,953 991 
U.S. taxation of foreign subsidiaries3,770 1,608 
Foreign currency exchange239 1,153 
Other liabilities3,210 1,095 
Total deferred tax liabilities$89,262 $70,832 
Net deferred tax assets$125,613 $89,139 
As of December 31, 2021 and cash equivalents;
restricted cash and time deposits;
employee loans;
long-term debt (Note 8 “Long-Term Debt”)
Since 2012,2020, the Company has offeredclassified $18.3 million and $3.3 million, respectively, of deferred tax liabilities as Other noncurrent liabilities in the consolidated balance sheets.
Included in the stock-based compensation expense deferred tax asset at December 31, 2021 and 2020 is $5.4 million and $6.1 million, respectively, that is related to acquisitions and is amortized for tax purposes over a loan program, which provides employees with loans10 to purchase housing in Belarus through independent third parties. This program is designed as a retention mechanism for15-year period.
As of December 31, 2021, the Company’s employeesdomestic and foreign net operating loss (“NOL”) carryforwards for income tax purposes were approximately $2.8 million and $18.9 million, respectively. If not utilized, the domestic NOL carryforwards will begin to expire in Belarus and is available to full-time qualified employees.2022. The aggregate maximum lending limit of the program is $10,000,foreign NOL carryforwards include $9.7 million from jurisdictions with no individual outstanding loans exceeding $50expiration date, with the remainder expiring as follows: $1.2 million in 2022, $1.3 million in 2023, $2.0 million in 2024, $3.0 million in 2025, and $1.7 million in 2026. The Company maintains a valuation allowance primarily related to the net operating loss carryforwards in certain foreign jurisdictions that the Company intendsbelieves are not likely to hold all employee loans until their maturity. In addition to the housing loans, the Company issues relocation loans in connection with intra-company transfers, as well as certain other individual loans. There were no loans issued to principal officers, directors, and their affiliates. Loans under these programs were not materialbe realized, which totaled $17.5 million as of December 31, 2018 and 2017 and were included in Prepaid and other current assets and Other noncurrent assets in the Company’s consolidated balance sheets.2021.
The housing loans are measured using the Level 3 inputs within the fair value hierarchy under FASB ASC Topic 820, Fair Value Measurement because they are valued using significant unobservable inputs. The fair value of employee housing loans is estimated using information on the rates of return that market participants in Belarus would require when investing in unsecured U.S. dollar-denominated government bonds with similar maturities (a “risk-free rate”), after taking into consideration any applicable credit and liquidity risk. They are subsequently carried at amortized cost less allowance for loan losses, which have been minimal since the commencement of the program as participants go through a rigorous approval and screening process. Any difference between the carrying value and the fair value of a loan upon initial recognition is charged to expense.

The following tables present the reported amounts and estimated fair values of the financial assets and liabilities for which disclosure of fair value is required, as they would be categorized within the fair value hierarchy, as of the dates indicated:
      Fair Value Hierarchy
  Balance Estimated Fair Value Level 1 Level 2 Level 3
December 31, 2018          
Financial Assets:          
Cash and cash equivalents $770,560
 $770,560
 $770,560
 $
 $
Restricted cash $1,151
 $1,151
 $1,151
 $
 $
Employee loans $3,525
 $3,525
 $
 $
 $3,525
Financial Liabilities:          
Borrowings under 2017 Credit Facility $25,020
 $25,020
 $
 $25,020
 $
      Fair Value Hierarchy
  Balance Estimated Fair Value Level 1 Level 2 Level 3
December 31, 2017          
Financial Assets:          
Cash and cash equivalents $582,585
 $582,585
 $582,585
 $
 $
Time deposits and restricted cash $673
 $673
 $
 $673
 $
Employee loans $4,210
 $4,210
 $
 $
 $4,210
Financial Liabilities:          
Borrowings under 2017 Credit Facility $25,009
 $25,009
 $
 $25,009
 $
F-40

12.STOCK-BASED COMPENSATION
The following costs related to the Company’s stock compensation plans were included in the consolidated statementsTable of income and comprehensive income:
Contents
  For the Years Ended December 31,
  2018 2017 2016
Cost of revenues (exclusive of depreciation and amortization) $27,245
 $20,868
 $16,619
Selling, general and administrative expenses 
 31,943
 31,539
 32,625
Total $59,188
 $52,407
 $49,244
Equity Plans
2015 Long-Term Incentive Plan— On June 11, 2015, the Company’s stockholders approved the 2015 Long-Term Incentive Plan (“2015 Plan”) to be used to issue equity awards to company personnel. As of December 31, 2018, 5,332,128 shares of common stock remained available for issuance under the 2015 Plan. All of the awards issued pursuant to the 2015 Plan expire 10 years from the date of grant.
2012 Non-Employee Directors Compensation Plan — On January 11, 2012, the Company approved the 2012 Non-Employee Directors Compensation Plan (“2012 Directors Plan”) to be used to issue equity grants to its non-employee directors. The Company authorized 600,000 shares of common stock to be reserved for issuance under the plan. As of December 31, 2018, 533,852 shares of common stock remained available for issuance under the 2012 Directors Plan. The 2012 Directors Plan will expire after 10 years and is administered by the Company’s Board of Directors.
2012 Long-Term Incentive Plan — On January 11, 2012, the Company approved the 2012 Long-Term Incentive Plan (“2012 Plan”) to be used to issue equity grants to Company personnel. In June 2015, the 2012 Plan was discontinued; however, outstanding awards remain subject to the terms of the 2012 Plan and any shares that are subject to an award that was previously granted under the 2012 Plan and that expire or terminate for any reason prior to exercise will become available for issuance under the 2015 Plan. All of the awards issued pursuant to the 2012 Plan expire 10 years from the date of grant.

2006 Stock Option Plan — Effective May 31, 2006, the Board of Directors of the Company adopted the 2006 Stock Option Plan (the “2006 Plan”) to grant stock options to directors, employees, and certain independent contractors. In January 2012, the 2006 Plan was discontinued; however, outstanding awards remain subject to the terms of the 2006 Plan and any shares that are subject to an option award that was previously granted under the 2006 Plan and that expire or terminate for any reason prior to exercise will become available for issuance under the 2015 Plan. All of the awards issued pursuant to the 2006 Plan expire 10 years from the date of grant.
Stock Options
Stock option activity under the Company’s plans is set forth below:
Number of
Options
Weighted Average
Exercise Price 
Aggregate
Intrinsic Value 
Weighted Average
Remaining Contractual Term (in years)
Number of
Options 
 
Weighted Average
Exercise Price 
 
Aggregate
Intrinsic Value 
 Weighted Average
Remaining Contractual Term (in years)
Options outstanding as of January 1, 20167,450,914
 $34.07
 $331,938
 
Options outstanding as of January 1, 2019Options outstanding as of January 1, 20194,083 $44.54 $291,846 
Options grantedOptions granted132 $169.13 
Options modifiedOptions modified18 $163.55 
Options exercisedOptions exercised(899)$41.21 
Options forfeited/cancelledOptions forfeited/cancelled(11)$97.83 
Options outstanding as of December 31, 2019Options outstanding as of December 31, 20193,323 $50.85 $536,015 
Options grantedOptions granted158 $187.76 
Options modifiedOptions modified— $— 
Options exercisedOptions exercised(700)$37.79 
Options forfeited/cancelledOptions forfeited/cancelled(9)$119.30 
Options outstanding as of December 31, 2020Options outstanding as of December 31, 20202,772 $61.71 $822,152 
Options granted313,088
 $70.27
   Options granted94 $410.03 
Options exercised(895,804) $20.13
   Options exercised(536)$49.13 
Options forfeited/cancelled(227,759) $47.89
   Options forfeited/cancelled(12)$248.74 
Options expired(3,200) $1.52
   
Options outstanding as of December 31, 20166,637,239
 $37.20
 $179,936
 
Options granted261,373
 $73.40
   
Options exercised(1,789,434) $30.23
   
Options forfeited/cancelled(200,210) $57.09
   
Options expired(7,220) $4.63
   
Options outstanding as of December 31, 20174,901,748
 $40.91
 $326,064
 
Options granted160,181
 $112.81
   
Options exercised(945,166) $36.69
   
Options forfeited/cancelled(32,569) $63.28
   
Options expired(1,250) $25.72
   
Options outstanding as of December 31, 20184,082,944
 $44.54
 $291,846
 5.5
Options outstanding as of December 31, 2021Options outstanding as of December 31, 20212,318 $77.79 $1,369,132 3.7
      
Options vested and exercisable as of December 31, 20183,183,103
 $36.10
 $254,360
 4.9
Options expected to vest as of December 31, 2018867,711
 $73.93
 $36,539
 7.3
Options vested and exercisable as of December 31, 2021Options vested and exercisable as of December 31, 20212,018 $53.27 $1,241,261 3.0
Options expected to vest as of December 31, 2021Options expected to vest as of December 31, 2021284 $240.03 $121,544 8.1
The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model. The grant-date fair value for stock options granted was determined using a Black-Scholes model incorporatingincorporated the following averageweighted-average assumptions:
For the Years Ended December 31,For the Years Ended December 31,
2018 2017 2016202120202019
Expected volatility33.8% 30.5% 31.9%Expected volatility35.3 %36.9 %33.5 %
Expected term (in years)6.25
 6.25
 6.24
Expected term (in years)6.246.256.25
Risk-free interest rate2.7% 2.1% 1.5%Risk-free interest rate1.2 %0.5 %2.3 %
Expected dividends% % %Expected dividends— %— %— %
Effective January 1, 2018, the Company changed its methodology for estimatingExpected volatility used in the Black-Scholes option valuation model. Prior to January 1, 2018, the Company estimated the volatility of its common stock by usingis based on the historical volatility of peer public companies including the Company’s historical volatility. Instock price. The expected term represents the first quarterperiod of 2018, the Company began exclusively using its own historical volatility as it believes this is a more accurate estimate of future volatility of the price of the Company’s common stock. The Company did not change the methodology for estimating any other Black-Scholes option valuation model assumptions.

time that options granted are expected to be outstanding. The risk-free rate is based on the U.S. Treasury yield curve for the periods equal to the expected term of the options in effect at the time of grant. The Company has not declared or paid any dividends on its common stock. The Company intends to retain any earnings to fund operations and future growth of its business and, therefore, does not anticipate paying any cash dividends in the foreseeable future.
The weighted-average grant-date fair value of stock options granted during the years ended December 31, 2018, 20172021, 2020 and 20162019 was $43.42, $25.29$149.26, $68.53 and $24.26,$63.12, respectively. The total intrinsic value of options exercised during the years ended December 31, 2018, 20172021, 2020 and 20162019 was $83,250, $91,148$251.9 million, $151.3 million and $39,577,$121.1 million, respectively.
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The Company recognizes the fair value of each option as compensation expense on a straight-line basis over the requisite service period, which is generally the vesting period. The options are typically scheduled to vest over four years from the time of grant, subject to the terms of the applicable plan and stock option agreement. In general, in the event of a participant’s termination of service for any reason, unvested options are forfeited as of the date of such termination without any payment to the participant. The Company records share-based compensation expense only for those awards that are expected to vest and as such, the Company applies an estimated forfeiture rate at the time of grant and adjusts the forfeiture rate estimate quarterly to reflect actual forfeitures quarterly.forfeiture activity. In general, in the event of a participant’s voluntary termination of service, unvested options are forfeited as of the date of such termination without any payment to the participant and the cumulative amount of previously recognized expense related to the forfeited options is reversed.
As of December 31, 2018, $12,5532021, $18.7 million of total remaining unrecognized compensation cost related to unvested stock options, net of estimated forfeitures, is expected to be recognized over a weighted-average period of 2.12.7 years. As of December 31, 2018, a total of 50 shares underlying options exercised through December 31, 2018, were in transfer with the Company’s transfer agent.
Restricted Stock and Restricted Stock Units
The Company grants restricted stock units (“RSUs”) to Company personnel and non-employee directors under the Company’s 2015 Plan (and prior to its approval, under the 2012 Plan) and 2012 Directors Plan, respectively. Prior to 2017, awards to non-employee directors were in the form of restricted stock. In addition, the Company has issued in the past, and may issue in the future, its equity securities to compensate employees of acquired businesses for future services. Equity-based awards granted in connection with acquisitions of businesses are generallymay be issued in the form of service-based awards (dependent onrequiring continuing employment only)with the Company, restricted stock subject to trading restrictions, and performance-based awards, which are granted andwould vest only if certain specified performance and service conditions are met. The awards issued in connection with acquisitions of businesses are subject to the terms and conditions contained in the applicable award agreementagreements and acquisition documents with typical vesting period of three years and equal or variable vesting percentage of the awards granted depending on the terms.

documents.
Service-Based Awards
The table below summarizes activity related to the Company’s equity-classified and liability-classified service-based awards for the years ended December 31, 2018, 20172021, 2020 and 2016:2019:
Equity-Classified
Restricted Stock
Equity-Classified
Equity-Settled
Restricted Stock Units
Liability-Classified
Cash-Settled
Restricted Stock Units
 Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Unvested service-based awards outstanding as of January 1, 20191 $63.10 798 $92.13 303 $83.99 
Awards granted$167.18 284 $170.29 56 $170.13 
Awards modified— $— $170.74 $168.36 
Awards vested— $— (287)$87.79 (111)$80.51 
Awards forfeited/cancelled— $— (43)$114.45 (7)$94.77 
Unvested service-based awards outstanding as of December 31, 201910 $162.96 759 $122.48 242 $105.40 
Awards granted— $— 294 $204.57 60 $181.77 
Awards modified— $— (1)$122.55 — $— 
Awards vested(1)$63.10 (317)$108.87 (122)$91.39 
Awards forfeited/cancelled— $— (49)$148.11 (5)$113.94 
Unvested service-based awards outstanding as of December 31, 20209 $167.18 686 $162.15 175 $141.16 
Awards granted— $— 238 $429.41 27 $394.24 
Awards vested— $— (308)$139.83 (86)$118.05 
Awards forfeited/cancelled— $— (40)$264.48 (4)$210.26 
Unvested service-based awards outstanding as of December 31, 20219 $167.18 576 $277.38 112 $217.28 
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Equity-Classified
Equity-Settled
Restricted Stock
 
Equity-Classified
Equity-Settled
Restricted Stock Units
 
Liability-Classified
Cash-Settled
Restricted Stock Units
 
Number of
Shares 
 
Weighted Average Grant Date
Fair Value Per Share 
 
Number of
Shares 
 
Weighted Average Grant Date
Fair Value Per Share 
 
Number of
Shares 
 
Weighted Average Grant Date
Fair Value Per Share 
Unvested service-based awards outstanding as of January 1, 2016306,839
 $41.14
 149,272
 $57.55
 
 $
Awards granted6,510
 $73.00
 408,629
 $70.39
 207,586
 $70.53
Awards vested(156,535) $42.64
 (41,015) $55.60
 
 $
Awards forfeited/cancelled(2,689) $45.32
 (31,698) $70.44
 (3,085) $70.52
Unvested service-based awards outstanding as of December 31, 2016154,125
 $40.89
 485,188
 $67.69
 204,501
 $70.53
Awards granted
 $
 424,623
 $73.89
 170,295
 $74.21
Awards modified
 $
 (2,570) $26.85
 2,570
 $73.27
Awards vested(152,285) $43.39
 (140,043) $66.54
 (52,004) $70.56
Awards forfeited/cancelled
 $
 (79,186) $70.30
 (10,533) $71.72
Unvested service-based awards outstanding as of December 31, 20171,840
 $54.37
 688,012
 $71.60
 314,829
 $72.50
Awards granted
 $
 380,864
 $115.84
 85,380
 $112.65
Awards modified
 $
 (3,110) $80.27
 3,110
 $120.18
Awards vested(1,047) $47.76
 (217,800) $70.10
 (91,684) $72.69
Awards forfeited/cancelled
 $
 (50,063) $86.97
 (8,668) $81.40
Unvested service-based awards outstanding as of December 31, 2018793
 $63.10
 797,903
 $92.13
 302,967
 $83.99
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The fair value of vested service-based awards (measured at the vesting date) for the years ended December 31, 2018, 20172021, 2020 and 20162019 was as follows:
For the Years Ended December 31, For the Years Ended December 31,
2018 2017 2016 202120202019
Equity-classified equity-settled     Equity-classified equity-settled
Restricted stock$142
 $12,607
 $11,431
Restricted stock$— $101 $73 
Restricted stock units24,987
 10,620
 2,932
Restricted stock units129,527 60,042 48,111 
Liability-classified cash-settled     Liability-classified cash-settled
Restricted stock units10,349
 3,811
 
Restricted stock units33,947 22,014 18,449 
Total fair value of vested service-based awards$35,478
 $27,038
 $14,363
Total fair value of vested service-based awards$163,474 $82,157 $66,633 
As of December 31, 2018, $382021, $0.3 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified restricted stock is expected to be recognized over the weighted-average remaining requisite service period of 1.50.7 years.
As of December 31, 2018, $51,6552021, $112.0 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified RSUs, net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.62.7 years. As of December 31, 2018, there were 3,894 restricted stock units vested for which the holders elected to defer delivery of EPAM Systems, Inc. ordinary shares. During the first quarter of 2018, 44,228 RSUs were granted in connection with the acquisition of Continuum. During the fourth quarter of 2018, 44,350 RSUs were granted in connection with the acquisition of Think.

As of December 31, 2018, $23,2512021, $38.6 million of total remaining unrecognized stock-based compensation costs related to service-based liability-classified RSUs, net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.3 years.
The liability associated with ourthe Company’s service-based liability-classified RSUs as of December 31, 20182021 and 20172020 was $9,920$31.5 million and $5,964,$26.8 million, respectively, and wasis classified as DeferredAccrued compensation due to employeesand benefits expenses in the consolidated balance sheets.
Performance -BasedPerformance-Based Awards
The table below summarizes activity related to the Company’s performance-based awards for the years ended December 31, 2018, 20172021, 2020 and 2016:2019:
Equity-Classified
Equity-Settled
Restricted Stock
Equity-Classified
Equity-Settled
Restricted Stock Units
 Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Number of
Shares
Weighted Average Grant Date
Fair Value Per Share 
Unvested performance-based awards outstanding as of January 1, 2019 $ 30 $121.75 
Awards granted$165.87 — $— 
Awards modified— $— (30)$121.75 
Unvested performance-based awards outstanding as of December 31, 20199 $165.87  $ 
Awards granted— $— 31 $210.44 
Awards vested— $— (10)$177.81 
Unvested performance-based awards outstanding as of December 31, 20209 $165.87 21 $227.16 
Awards granted— $— $574.98 
Awards vested $ (4)$177.81 
Awards forfeited $ (2)$334.78 
Unvested performance-based awards outstanding as of December 31, 20219 $165.87 23 $339.69 
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 Equity-Classified
Equity-Settled
Restricted Stock
 Liability-Classified
Equity-Settled
Restricted Stock
 Equity-Classified
Equity-Settled
Restricted Stock Units
 
Number of
Shares 
 
Weighted Average Grant Date
Fair Value Per Share 
 
Number of
Shares 
 
Weighted Average Grant Date
Fair Value Per Share 
 
Number of
Shares 
 
Weighted Average Grant Date
Fair Value Per Share 
Unvested performance-based awards outstanding as of January 1, 201622,090
 $37.52
 211,206
 $39.65
 14,000
 $70.22
Awards granted
 $
 
 $
 
 $
Awards vested(9,978) $40.15
 (105,604) $40.44
 (4,666) $70.22
Awards forfeited/cancelled(6,539) $36.97
 
 $
 (4,667) $70.22
Unvested performance-based awards outstanding as of December 31, 20165,573
 $33.47
 105,602
 $38.86
 4,667
 $70.22
Awards granted
 $
 
 $
 
 $
Awards vested(5,573) $33.47
 (105,602) $38.86
 
 $
Awards forfeited/cancelled
 $
 
 $
 (4,667) $70.22
Unvested performance-based awards outstanding as of December 31, 2017
 $
 
 $
 
 $
Awards granted
 $
 
 $
 45,375
 $121.75
Awards vested
 $
 
 $
 (8,769) $121.75
Awards forfeited/cancelled
 $
 
 $
 (7,014) $121.75
Unvested performance-based awards outstanding as of December 31, 2018
 $
 
 $
 29,592
 $121.75
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As of December 31, 2018, $2,7792021, $0.6 million of total remaining unrecognized stock-based compensation costcosts related to performance-based equity-classified restricted stock units is expected to be recognized over the weighted-average remaining requisite service period of 1.91.7 years.
Performance-basedAs of December 31, 2021, $5.0 million of total remaining unrecognized stock-based compensation cost related to performance-based equity-classified RSUs were granted during the year ended December 31, 2018 in connection with the acquisition of Continuum and have a variable vesting period, subjectis expected to satisfaction of the applicable performance conditions with each vesting portion having its own service inception date. Compensation isbe recognized over the vestingweighted-average remaining requisite service period and adjusted each period for the probability of achievement of the performance criteria for each vesting portion separately. During the fourth quarter of 2018, the Company accelerated the recognition of $835 of expense due to vesting of performance-based equity-classified RSUs in accordance with the terms of the award agreement.3.1 years.

The fair value of vested performance-based awards (measured at the vesting date) for the years ended December 31, 2018, 20172021, 2020 and 20162019 was as follows:
 For the Years Ended December 31,
 202120202019
Equity-classified equity-settled
Restricted stock units$2,215 3,282 $— 
Total fair value of vested performance-based awards$2,215 $3,282 $ 

2021 Employee Stock Purchase Plan
On November 1, 2021, the first offering period of the ESPP commenced. The Company recognizes compensation expense related to shares issued pursuant to the ESPP on a straight-line basis over the six-month offering period. The Company uses the Black-Scholes option pricing model to calculate the fair value of shares issued under the ESPP. The Black-Scholes model relies on a number of key assumptions to calculate estimated fair values. The model incorporated the following weighted-average assumptions for the year ended December 31, 2021:
Expected volatility0023.1 %
Expected term (in years)000.50
Risk-free interest rate000.1 %
Expected dividends00— %
Expected volatility is based on the historical volatility of the Company’s stock price. The expected term represents the purchase period for the ESPP. The risk-free rate is based on the U.S. Treasury yield curve for the period equal to the expected term in effect at the time of grant. The Company has not declared or paid any dividends on its common stock. The Company intends to retain any earnings to fund its operations and the future growth of its business and, therefore, does not anticipate paying any cash dividends in the foreseeable future.
As of December 31, 2021, the weighted average price per share was $659.65 and the weighted average grant-date fair value per share was $141.86. As of December 31, 2021, no purchases have been made under the ESPP as the first anticipated purchase date will be on April 29, 2022. As of December 31, 2021, total unrecognized stock-based compensation cost related to the ESPP was $2.3 million, which is expected to be recognized over a period of 0.33 years.

Commitments for Future Equity Awards
In connection with the Company’s acquisitions of businesses as discussed in Note 2 “Acquisitions”, EPAM enters into agreements that contractually commit it to granting equity awards at future dates. The agreements are unique to each acquisition and terms vary to specify the number of future awards to be issued or a monetary value that will be settled with equity awards valued at future stock prices.
As of December 31, 2021, the Company has commitments to grant up to $43.6 million of equity awards based on future stock prices. There is a service-based vesting requirement after the grant date associated with these awards and certain of these awards contain performance criteria that will determine the amount of future awards to be issued. These awards are considered granted for accounting purposes. In determining the expense, the Company adjusts the expected settlement based on the probability of achievement of such performance criteria. Related to these awards, the Company recorded $5.5 million, $0.2 million and $0.0 million of stock-based compensation expense in the consolidated statements of income for the years ended December 31, 2021, 2020 and 2019, respectively.
As of December 31, 2021, the Company has commitments to grant 8 thousand RSUs and $2.7 million of equity awards based on future stock prices, which are not considered granted for accounting purposes as the grantee has not yet been
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 For the Years Ended December 31,
 2018 2017 2016
Equity-classified equity-settled     
Restricted stock$
 $452
 $690
Restricted stock units1,046
 
 348
Liability-classified equity-settled     
Restricted stock
 8,633
 7,955
Total fair value of vested performance-based awards$1,046
 $9,085
 $8,993
determined. In addition, as of December 31, 2021, the Company has issued 7 thousand PSUs which are not considered granted for accounting purposes as the future vesting conditions have not yet been determined.

13.INCOME TAXES
Income Before Provision for Income Taxes
Income before provision for income taxes based on geographic location is disclosed in the table below:
For the Years Ended December 31,
202120202019
Income before provision for income taxes:
United States$128,498 $100,411 $65,370 
Foreign404,894 278,068 234,156 
Total$533,392 $378,479 $299,526 
Provision for Income Taxes
The provision for income taxes consists of the following:
For the Years Ended December 31,
202120202019
Current
Federal$22,742 $19,249 $16,943 
State6,735 7,022 3,610 
Foreign69,162 45,042 25,680 
Deferred
Federal(40,421)(16,235)(9,425)
State(2,576)(1,682)(358)
Foreign(3,902)(2,077)2,019 
Total$51,740 $51,319 $38,469 

As part of the U.S. Tax Act, as determined as of December 31, 2017, the Company was required to make annual installment payments for the one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax at a rate of 15.5% to the extent of foreign cash and certain other net current assets and 8.0% on the remaining earnings. As of December 31, 2021, the remaining unpaid balance of this one-time transition tax was $37.2 million to be paid in annual installments with the final payment due in 2025.
As of December 31, 2021, the Company had approximately $1,239.1 million of accumulated undistributed foreign earnings that are expected to be indefinitely reinvested. Due to the enactment of the U.S. Tax Act and the one-time transition tax on accumulated foreign subsidiary earnings, these accumulated foreign earnings are no longer expected to be subject to U.S. federal income tax if repatriated but could be subject to state and foreign income and withholding taxes.

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13.EARNINGS PER SHARE
Effective Tax Rate Reconciliation
The reconciliation of the provision for income taxes at the federal statutory income tax rate to the Company’s effective income tax rate is as follows:
For the Years Ended December 31,
202120202019
Provision for income taxes at federal statutory rate$112,016 $79,481 $62,898 
Increase/(decrease) in taxes resulting from:
GILTI and BEAT U.S. taxes229 191 (926)
Excess tax benefits relating to stock-based compensation(71,628)(36,646)(28,385)
Foreign tax expense and tax rate differential(206)(387)(1,402)
Effect of permanent differences4,756 3,507 3,264 
State taxes, net of federal benefit9,192 5,323 2,971 
Stock-based compensation expense1,102 44 571 
Tax credits(4,100)— — 
Other379 (194)(522)
Provision for income taxes$51,740 $51,319 $38,469 
The Company’s worldwide effective tax rate for the years ended December 31, 2021, 2020 and 2019 was 9.7%, 13.6% and 12.8%, respectively. The provision for income taxes in the year ended December 31, 2021 was favorably impacted by the recognition of $4.1 million of certain tax credits, of which $2.7 million were a one-time benefit resulting from credit claims for previous tax periods. In addition, the Company recorded excess tax benefits upon vesting or exercise of stock-based awards of $71.6 million, $36.6 million and $28.4 million during the years ended December 31, 2021, 2020 and 2019, respectively.
In Belarus, member technology companies of High-Technologies Park, including the Company’s local subsidiary, have a full exemption from Belarus income tax on qualifying income through January 2049. However, beginning February 1, 2018, the earnings of the Company’s Belarus local subsidiary became subject to U. S. income taxation due to the Company’s decision to change the tax status of the subsidiary. There was no aggregate dollar benefit derived or impact on diluted net income per share from this tax holiday for the years ended December 31, 2021, 2020 and 2019.

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Deferred Income Taxes
Deferred income taxes reflect the net effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows:
As of December 31, 2021As of December 31, 2020
Deferred tax assets:
Property and equipment$10,561 $8,164 
Intangible assets2,220 827 
Accrued expenses90,754 50,639 
Net operating loss carryforward4,988 6,089 
Deferred revenue4,551 9,796 
Stock-based compensation31,959 30,112 
Operating lease liabilities52,806 51,519 
Foreign tax credit7,589 2,168 
Foreign currency exchange11,750 4,890 
Other assets2,235 1,252 
Deferred tax assets$219,413 $165,456 
Less: valuation allowance(4,538)(5,485)
Total deferred tax assets$214,875 $159,971 
Deferred tax liabilities:
Property and equipment
$1,095 $3,818 
Intangible assets26,124 12,018 
Operating lease right-of-use assets
51,871 50,149 
Accrued revenue and expenses2,953 991 
U.S. taxation of foreign subsidiaries3,770 1,608 
Foreign currency exchange239 1,153 
Other liabilities3,210 1,095 
Total deferred tax liabilities$89,262 $70,832 
Net deferred tax assets$125,613 $89,139 
As of December 31, 2021 and 2020, the Company classified $18.3 million and $3.3 million, respectively, of deferred tax liabilities as Other noncurrent liabilities in the consolidated balance sheets.
Included in the stock-based compensation expense deferred tax asset at December 31, 2021 and 2020 is $5.4 million and $6.1 million, respectively, that is related to acquisitions and is amortized for tax purposes over a 10 to 15-year period.
As of December 31, 2021, the Company’s domestic and foreign net operating loss (“NOL”) carryforwards for income tax purposes were approximately $2.8 million and $18.9 million, respectively. If not utilized, the domestic NOL carryforwards will begin to expire in 2022. The foreign NOL carryforwards include $9.7 million from jurisdictions with no expiration date, with the remainder expiring as follows: $1.2 million in 2022, $1.3 million in 2023, $2.0 million in 2024, $3.0 million in 2025, and $1.7 million in 2026. The Company maintains a valuation allowance primarily related to the net operating loss carryforwards in certain foreign jurisdictions that the Company believes are not likely to be realized, which totaled $17.5 million as of December 31, 2021.

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Table of Contents
Unrecognized Tax Benefits
As of December 31, 2021 and 2020, unrecognized tax benefits of $8.2 million and $3.3 million, respectively, are included in Income taxes payable, noncurrent within the consolidated balance sheets. During the year ended December 31, 2021, uncertain tax positions resulted in an unrecognized tax benefit of $5.3 million related to 2021 and $0.9 million for prior years including interest and penalties, and reversals related to prior year tax positions yielded a tax benefit of $1.3 million including reversal of interest and penalties. During the year ended December 31, 2020, a new uncertain tax position resulted in an unrecognized tax benefit of $0.8 million, and reversals related to prior year tax positions yielded a tax benefit of $0.5 million.There were no significant new tax positions that resulted in unrecognized tax benefits or reversals related to prior year tax positions during the year ended December 31, 2019. There were no tax positions for which it was reasonably possible that unrecognized tax benefits will significantly increase or decrease within twelve months of the reporting date.
The Company is subject to taxation in the United States and various states and foreign jurisdictions including Russia, Germany, Ukraine, the United Kingdom, Hungary, Switzerland, Netherlands, Poland and India. With few exceptions, as of December 31, 2021, the Company is no longer subject to U.S. federal, state, local or foreign examinations by tax authorities for years before 2017.
14.EARNINGS PER SHARE
Basic earnings per share is computed by dividing net income available to common shareholders by the weighted averageweighted-average number of shares of common stock outstanding during the period. For purposes of computing basic earnings per share, any nonvested shares of restricted stock that have been issued by the Company and are contingently returnable to the Company are excluded from the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing net income available to common shareholders by the weighted averageweighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. StockPotentially dilutive securities include outstanding stock options, unvested restricted stock, unvested equity-settled RSUs and RSUs that are anti-dilutive are excluded from the computationstock to be issued under the Company’s ESPP. The dilutive effect of weighted average shares outstanding.potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method.
The following table sets forth the computation of basic and diluted earnings per share of common stock as follows:
 For the Years Ended December 31, For the Years Ended December 31,
 2018 2017 2016 202120202019
Numerator for basic and diluted earnings per share:      Numerator for basic and diluted earnings per share:
Net income $240,256
 $72,760
 $99,266
Net income$481,652 $327,160 $261,057 
Numerator for basic and diluted earnings per share $240,256
 $72,760
 $99,266
Numerator for basic and diluted earnings per share$481,652 $327,160 $261,057 
      
Denominator:  
  
  Denominator:  
Weighted average common shares for basic earnings per share 53,622,989
 52,077,011
 50,309,362
Weighted average common shares for basic earnings per share56,511 55,727 54,719 
Net effect of dilutive stock options, restricted stock units and restricted stock awards 3,049,687
 2,907,162
 2,906,030
Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPPNet effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP2,553 2,719 2,949 
Weighted average common shares for diluted earnings per share 56,672,676
 54,984,173
 53,215,392
Weighted average common shares for diluted earnings per share59,064 58,446 57,668 
      
Net Income per share:  
  
  Net Income per share:  
Basic $4.48
 $1.40
 $1.97
Basic$8.52 $5.87 $4.77 
Diluted $4.24
 $1.32
 $1.87
Diluted$8.15 $5.60 $4.53 
Weighted average commonThe number of shares considered anti-dilutive and not included in computingunderlying equity-based awards that were excluded from the calculation of diluted earnings per share were 138,639, 883,350as their effect would be anti-dilutive was 32 thousand, 40 thousand and 2,324,667120 thousand for the years ended December 31, 2018, 20172021, 2020 and 2016,2019, respectively.

14.COMMITMENTS AND CONTINGENCIES
The Company leases office space under operating leases, which expire at various dates. Certain leases contain renewal provisions and generally requireNet income attributable to noncontrolling interests recognized in connection with the Company to pay utilities, insurance, taxes, and other operating expenses. Rent expense under operating lease agreementsacquisition of Emakina on November 3, 2021 was immaterial for the yearsyear ended December 31, 2018, 2017 and 2016 was $46,924, $37,916, and $28,220 respectively. Future minimum rental payments under operating leases that have initial or remaining lease terms in excess2021.


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Table of one year as of December 31, 2018 were as follows:
Year Ending December 31, Operating Leases
2019 $46,082
2020 38,715
2021 32,126
2022 24,341
2023 20,118
Thereafter 77,484
Total minimum lease payments $238,866
15.COMMITMENTS AND CONTINGENCIES
Indemnification ObligationsIn the normal course of business, the Company is a party to a variety of agreements under which it may be obligated to indemnify the other party for certain matters. These obligations typically arise in contracts where the Company customarily agrees to hold the other party harmless against losses arising from a breach of representations or covenants for certain matters, such as title to assets andinfringement of third party intellectual property rights, and data privacy matters associated withviolations, and certain arrangements.tortious conduct in the course of providing services. The duration of these indemnifications varies, and in certain cases, is indefinite.
The Company is unable to reasonably estimate the maximum potential amount of future payments under these or similar agreements due to the unique facts and circumstances of each agreement and the fact that certain indemnifications provide for no limitation to the maximum potential future payments under the indemnification. Management is not aware of any such matters that would have a material effect on the consolidated financial statements of the Company.
Litigation — From time to time, the Company is involved in litigation, claims or other contingencies arising in the ordinary course of business. The Company accrues a liability when a loss is considered probable and the amount can be reasonably estimated. When a material loss contingency is reasonably possible but not probable, the Company does not record a liability, but instead discloses the nature and the amount of the claim, and an estimate of the loss or range of loss, if such an estimate can be made. Legal fees are expensed as incurred. In the opinion of management, the outcome of any existing claims and legal or regulatory proceedings, if decided adversely, is not expected to have a material effect on the Company’s business, financial condition, results of operations andor cash flows.
15.SEGMENT INFORMATION
16.SEGMENT INFORMATION
The Company determines its business segments and reports segment information in accordance with how the Company’s chief operating decision maker (“CODM”) organizes the segments to evaluate performance, allocate resources and make business decisions. Segment results are based on the segment’s revenues and operating profit, where segment operating profit is defined as income from operations before unallocated costs. Expenses included in segment operating profit consist principally of direct selling and delivery costs as well as an allocation of certain shared services expenses. Certain corporate expenses are not allocated to specific segments as these expenses are not controllable at the segment level. Such expenses include certain types of professional fees, non-corporatecertain taxes included in operating expenses, compensation to non-employee directors and certain other general and administrative expenses, including compensation of specific groups of non-production employees. In addition, the Company does not allocate amortization of acquisition-related intangible assets acquired through business combinations, goodwill and other asset impairment charges, stock-based compensation expenses, acquisition-related costs and certain other one-time charges. These unallocated amounts are combined with total segment operating profit to arrive at consolidated income from operations as reported below in the reconciliation of segment operating profit to consolidated income before provision for income taxes. Additionally, management has determined that it is not practical to allocate identifiable assets by segment since such assets are used interchangeably among the segments.

The Company manages its business primarily based on the managerial responsibility for its client base and market. As managerial responsibility for a particular customer relationship generally correlates with the customer’s geographic location, there is a high degree of similarity between customer locations and the geographic boundaries of the Company’s reportable segments. In some cases, managerial responsibility for a particular customer is assigned to a management team in another region and is usually based on the strength of the relationship between customer executives and particular members of EPAM’s senior management team. In such cases, the customer’s activity would be reported through the respective management team’steam member’s reportable segment.

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Revenues from external customers and operating profit, before unallocated expenses, by reportable segments were as follows:
For the years ended December 31,
 For the years ended December 31, 202120202019
 2018 2017 2016
Total segment revenues:      
Segment revenues:Segment revenues:
North America $1,077,094
 $796,126
 $642,216
North America$2,242,248 $1,601,820 $1,380,944 
Europe 693,867
 593,167
 474,988
Europe1,350,484 947,305 820,717 
Russia 73,148
 62,994
 43,611
Russia165,412 110,353 92,137 
Total segment revenues $1,844,109
 $1,452,287
 $1,160,815
Total revenuesTotal revenues$3,758,144 $2,659,478 $2,293,798 
Segment operating profit:      Segment operating profit:
North America $221,846
 $169,340
 $143,021
North America$462,798 $345,196 $293,757 
Europe 115,876
 92,080
 67,545
Europe233,727 152,902 114,863 
Russia 11,377
 13,906
 7,555
Russia32,547 5,811 17,347 
Total segment operating profit $349,099
 $275,326
 $218,121
Total segment operating profit$729,072 $503,909 $425,967 
Intersegment transactions were excluded from the above on the basis that they are neither included in the measure of a segment’s profit and loss results, nor considered by the CODM during the review of segment results.
There were no customers individually exceeding 10% of our total segment revenues for the yearyears ended December 31, 20182021, 2020 and 2017. During the year ended December 31, 2016, revenues from one customer, UBS AG, were $138,124 and accounted for more than 10% of total revenues. Revenues from this customer are reported in the Company’s Europe segment.2019.
Reconciliation of segment revenues to consolidated revenues and segment operating profit to consolidated income before provision for income taxes is presented below:
  For the Years Ended December 31,
  2018 2017 2016
Total segment revenues $1,844,109
 $1,452,287
 $1,160,815
Other income included in segment revenues (1,197) (1,839) (683)
Revenues $1,842,912
 $1,450,448
 $1,160,132
       
Total segment operating profit: $349,099
 $275,326
 $218,121
Unallocated amounts:      
       Other income included in segment revenues (1,197) (1,839) (683)
Stock-based compensation expense (59,188) (52,407) (49,244)
Non-corporate taxes (9,856) (9,659) (5,909)
Professional fees (6,188) (8,032) (8,265)
Depreciation and amortization (8,057) (7,632) (8,290)
Bank charges (2,358) (1,969) (1,515)
One-time charges and other acquisition-related expenses (2,055) (1,741) (706)
Other operating expenses (14,436) (19,101) (9,813)
Income from operations 245,764
 172,946
 133,696
Interest and other income, net 3,522
 4,601
 4,848
Foreign exchange gain/(loss) 487
 (3,242) (12,078)
Income before provision for income taxes $249,773
 $174,305
 $126,466
For the Years Ended December 31,
202120202019
Total segment operating profit:$729,072 $503,909 $425,967 
Unallocated costs:
Stock-based compensation expense(111,655)(75,238)(72,036)
Amortization of purchased intangibles(17,646)(12,340)(9,914)
Other acquisition-related expenses(6,397)(1,868)(3,774)
Other unallocated costs
(51,058)(35,139)(37,393)
Income from operations542,316 379,324 302,850 
Interest and other (loss)/income, net(1,727)3,822 8,725 
Foreign exchange loss(7,197)(4,667)(12,049)
Income before provision for income taxes$533,392 $378,479 $299,526 

During the year ended December 31, 2018, the Company began to allocate certain staff recruitment and development expenses into segment operating profit as these expenses became part of the evaluation of segment management’s performance. These costs were previously not allocated to segments and were included in unallocated amounts in the reconciliation of segment operating profit to consolidated income before provision for income taxes above. The effect of this reclassification was not material to segment operating profit and had no impact on total income from operations for the year end December 31, 2018.
Geographic Area Information
Long-lived assets include property and equipment, net of accumulated depreciation and amortization, and management has determined that it is not practical to allocate these assets by segment since such assets are used interchangeably among the segments. Physical locations and values of the Company’s long-lived assets are presented below:
As of December 31, 2021As of December 31, 2020As of December 31, 2019
Ukraine$78,289 $30,980 $24,652 
Belarus75,422 73,988 75,984 
Russia16,611 15,036 17,980 
United States14,843 15,718 15,637 
India9,459 7,079 7,443 
Poland8,240 5,434 5,029 
Hungary5,339 5,365 5,201 
Other28,011 15,933 13,333 
Total$236,214 $169,533 $165,259 
F-43

Table of Contents
 As of  
 December 31, 
 2018
 As of  
 December 31, 
 2017
 
As of
December 31,
2016
Belarus$50,085
 $49,866
 $46,011
United States13,101
 3,371
 2,618
Russia9,902
 9,617
 7,203
Ukraine8,433
 6,995
 5,610
India7,019
 2,698
 1,650
Hungary3,168
 3,901
 3,485
China2,651
 2,608
 1,887
Poland2,637
 2,893
 2,213
Other 5,650
 4,470
 2,939
Total$102,646
 $86,419
 $73,616

The table below presents the Company’s revenues by customer location for the years ended December 31, 2018, 20172021, 2020 and 2016:2019:
For the Years Ended December 31,
202120202019
United States$2,125,301 $1,523,731 $1,321,662 
United Kingdom474,941 331,217 290,039 
Switzerland271,208 203,391 152,710 
Russia155,186 104,846 89,941 
Netherlands154,816 114,678 88,488 
Germany113,727 84,902 82,441 
Canada96,646 68,416 68,304 
Other locations366,319 228,297 200,213 
Revenues$3,758,144 $2,659,478 $2,293,798 

17.ACCUMULATED OTHER COMPREHENSIVE LOSS
  For the Years Ended December 31,
  2018 2017 2016
United States $1,029,327
 $783,563
 $611,392
United Kingdom 200,918
 188,995
 177,194
Switzerland 144,398
 123,281
 122,919
Germany 80,787
 60,158
 43,621
Russia 71,181
 61,222
 40,944
Netherlands 70,274
 51,556
 17,521
Canada 69,836
 57,129
 59,189
Other 176,191
 124,544
 87,352
Revenues $1,842,912
 $1,450,448
 $1,160,132
The following table summarizes the changes in the accumulated balances for each component of accumulated other comprehensive loss:

For the Years Ended December 31,
202120202019
Foreign currency translation
Beginning balance$(28,168)$(32,666)$(38,961)
Foreign currency translation(29,323)5,802 7,912 
Income tax benefit/(expense)4,744 (1,304)(1,617)
Foreign currency translation, net of tax(24,579)4,498 6,295 
Ending balance$(52,747)$(28,168)$(32,666)
Cash flow hedging instruments
Beginning balance$3,642 $1,292 $(2,553)
Unrealized (loss)/gain in fair value(13,781)8,076 2,933 
Net gain/(loss) reclassified into Cost of revenues (exclusive of depreciation and amortization)4,649 (5,031)2,028 
Income tax benefit/(expense)2,073 (695)(1,116)
Cash flow hedging instruments, net of tax(7,059)2,350 3,845 
Ending balance(1)
$(3,417)$3,642 $1,292 
Defined benefit plans
Beginning balance$(986)$ $ 
Net actuarial gain/(loss) and prior service credit/(cost)3,805 (1,275)— 
Income tax (expense)/benefit(862)289 — 
Defined benefit plans, net of tax2,943 (986) 
Ending balance$1,957 $(986)$ 
Accumulated other comprehensive loss$(54,207)$(25,512)$(31,374)


16.QUARTERLY FINANCIAL DATA (UNAUDITED)
Summarized quarterly results for the years ended(1) As of December 31, 20182021, the ending balance of net unrealized loss related to derivatives designated as cash flow hedges is expected to be reclassified into Cost of revenues (exclusive of depreciation and 2017 wereamortization) in the next twelve months.
F-44


18.    SUBSEQUENT EVENTS
On February 24, 2022, Russian forces launched significant military action against Ukraine, and sustained conflict and disruption in the region is likely. Impact to Ukraine as follows:
well as actions taken by other countries, including new and stricter sanctions by Canada, the United Kingdom, the European Union, the U.S. and other countries and organizations against officials, individuals, regions, and industries in Russia, Ukraine, and Belarus, and each country’s potential response to such sanctions, tensions, and military actions could have a material effect on the Company’s operations. Any such material effect from the conflict and enhanced sanctions activity may disrupt the Company’s delivery of services, cause the Company to shift all or portions of its work occurring in the region to other countries, and may restrict the Company’s ability to engage in certain projects in the region or involving certain customers in the region. As of February 24, 2022, EPAM has approximately 14,000 personnel in Ukraine (including approximately 13,000 delivery personnel) in addition to personnel in Russia and Belarus.
  Three Months Ended   
2018 March 31  June 30  September 30  December 31  Full Year 
Revenues $424,148
 $445,647
 $468,186
 $504,931
 $1,842,912
Operating expenses:   
        
Cost of revenues (exclusive of depreciation and amortization) 277,634
 289,175
 301,081
 319,031
 1,186,921
Selling, general and administrative expenses 89,641
 93,273
 93,226
 97,447
 373,587
Depreciation and amortization expense 8,176
 8,962
 9,319
 10,183
 36,640
Income from operations 48,697
 54,237
 64,560
 78,270
 245,764
Interest and other income/(expense), net (551) 1,052
 1,941
 1,080
 3,522
Foreign exchange gain/(loss) (247) 1,830
 (514) (582) 487
Income before provision for/(benefit from) income taxes 47,899
 57,119
 65,987
 78,768
 249,773
Provision for/(benefit from) income taxes (16,519) 6,864
 369
 18,803
 9,517
Net income $64,418
 $50,255
 $65,618
 $59,965
 $240,256
Comprehensive income $67,796
 $32,345
 $63,426
 $52,798
 $216,365
Basic net income per share(1)
 $1.21
 $0.94
 $1.22
 $1.11
 $4.48
Diluted net income per share(1)
 $1.15
 $0.89
 $1.15
 $1.05
 $4.24
(1)Earnings per share amounts for each quarter may not necessarily total to the yearly earnings per share due to the weighting of shares outstanding on a quarterly and year to date basis.
The Company has no way to predict the progress or outcome of the situation, as the conflict and government reactions are rapidly developing and beyond the Company’s control. Prolonged unrest, military activities, or broad-based sanctions, should they be implemented, could have a material adverse effect on the Company’s financial condition, results of operations and cash flows.
  Three Months Ended   
2017 March 31  June 30  September 30  December 31  Full Year 
Revenues $324,651
 $348,977
 $377,523
 $399,297
 $1,450,448
Operating expenses:  
        
Cost of revenues (exclusive of depreciation and amortization) 207,730
 220,132
 239,369
 254,121
 921,352
Selling, general and administrative expenses 79,283
 81,143
 81,732
 85,430
 327,588
Depreciation and amortization expense 6,672
 7,020
 7,174
 7,696
 28,562
Income from operations 30,966
 40,682
 49,248
 52,050
 172,946
Interest and other income, net 584
 802
 1,416
 1,799
 4,601
Foreign exchange (loss)/gain (2,955) 1,562
 (77) (1,772) (3,242)
Income before provision for income taxes 28,595
 43,046
 50,587
 52,077
 174,305
Provision for income taxes 4,954
 5,687
 7,953
 82,951
 101,545
Net income/(loss) $23,641
 $37,359
 $42,634
 $(30,874) $72,760
Comprehensive income/(loss) $30,027
 $41,910
 $48,337
 $(27,449) $92,825
Basic net income/(loss) per share(1)
 $0.46
 $0.72
 $0.81
 $(0.58) $1.40
Diluted net income/(loss) per share(1) (2)
 $0.44
 $0.68
 $0.77
 $(0.58) $1.32
(1)Earnings per share amounts for each quarter may not necessarily total to the yearly earnings per share due to the weighting of shares outstanding on a quarterly and year to date basis.
(2)Due to the net loss during the three months ended December 31, 2017, zero incremental shares are included in the calculation of diluted loss per share because of their antidilutive effect.



SCHEDULE II
VALUATION AND QUALIFYING ACCOUNTS
FOR THE YEARS ENDED DECEMBER 31, 2018, 20172021, 2020 AND 20162019
(Inthousands)
 Balance at
Beginning of
Year 
AdditionsDeductions/
Write offs
Balance at End of Year 
Year Ended December 31, 2021
Allowance for doubtful accounts for trade receivables and contract assets$4,886 3,888 (3,253)$5,521 
Valuation allowance on deferred tax assets$5,485 — (948)$4,537 
Year Ended December 31, 2020
Allowance for doubtful accounts for trade receivables and contract assets$3,210 3,282 (1,606)$4,886 
Valuation allowance on deferred tax assets$3,877 1,608 — $5,485 
Year Ended December 31, 2019
Allowance for doubtful accounts for trade receivables and contract assets$1,557 2,072 (419)$3,210 
Valuation allowance on deferred tax assets$3,189 688 — $3,877 


F-45
  
Balance at
Beginning of
Year 
 Additions 
Deductions/
Write offs
 Balance at End of Year 
Year Ended December 31, 2018        
Allowance for doubtful accounts for accounts receivable $1,186
 2,722
 (2,351) $1,557
Valuation allowance on deferred tax assets $924
 2,265
 
 $3,189
Year Ended December 31, 2017        
Allowance for doubtful accounts for accounts receivable $2,014
 998
 (1,826) $1,186
Valuation allowance on deferred tax assets $
 924
 
 $924
Year Ended December 31, 2016        
Allowance for doubtful accounts for accounts receivable $1,729
 3,500
 (3,215) $2,014







F-41