Disclaimers Forward-Looking Statements This presentation includes “forward-looking statements” within the meaning of the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements may be identified by the use of words such as “outlook,” “target,” “expect,” “will,” “forecast,” or other similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements include, but are not limited to, statements regarding Billtrust’s financial outlook, guidance and forecasts of Billtrust’s financial and performance metrics, the potential benefits, value and the commercial attractiveness to its customers of Billtrust’s products and services, and Billtrust’s opportunity and ability to grow and scale its business. These statements are based on various assumptions, whether or not identified in this presentation, and on the current expectations of Billtrust’s management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by any investor as, a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and may differ from assumptions. Many actual events and circumstances are beyond the control of Billtrust. These forward-looking statements are subject to a number of risks and uncertainties, including Billtrust’s ability to attract and retain customers and expand customers’ use of Billtrust’s services; market, financial, political and legal conditions; the impact of the COVID-19 pandemic on Billtrust’s business and the global economy; risks relating to the uncertainty of the projected financial and operating information with respect to Billtrust; risks related to future market adoption of Billtrust’s offerings; risks related to Billtrust’s marketing and growth strategies; risks related to expanding Billtrust’s operations outside the United States; risks related to Billtrust’s ability to acquire or invest in businesses, products, or technologies that may complement or expand its products or platforms, enhance its technical capabilities, or otherwise offer growth opportunities; the effects of competition on Billtrust’s future business; and the risks discussed in Billtrust’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed March 9, 2022, under the heading “Risk Factors” and other documents of Billtrust filed, or to be filed, with the Securities and Exchange Commission (“SEC”). If any of these risks materialize or any of Billtrust’s assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. There may be additional risks that Billtrust presently does not know of or that Billtrust currently believes are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, these forward-looking statements reflect Billtrust’s expectations, plans or forecasts of future events and views as of the date of this presentation. Billtrust anticipates that subsequent events and developments will cause Billtrust’s assessments to change. However, while Billtrust may elect to update these forward-looking statements at some point in the future, Billtrust specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Billtrust’s assessments as of any date subsequent to the date of this presentation. Accordingly, undue reliance should not be placed upon the forward-looking statements. Non-GAAP Financial Measures Some of the financial information contained in this presentation has not been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”). Such financial information is identified as such within the presentation. Billtrust believes that the use of these non-GAAP financial measures provides an additional tool for management and investors to use in evaluating Billtrust’s actual and projected financial condition and operating results and trends in and in comparing Billtrust’s financial measures with other similar companies, many of which present similar non-GAAP financial measures to investors. Billtrust does not consider these non-GAAP measures in isolation or as an alternative to financial measures determined in accordance with GAAP. The principal limitation of these non-GAAP financial measures is that they exclude significant expenses and other amounts that are required by GAAP to be recorded in Billtrust’s financial statements. In addition, they are subject to inherent limitations as they reflect the exercise of judgments by management about which expense and other amounts are excluded or included in determining these non-GAAP financial measures. In order to compensate for these limitations, Billtrust presents non-GAAP financial measures in connection with GAAP results. Billtrust is not providing a reconciliation of its projected net revenue, adjusted gross profit, adjusted gross margin and adjusted EBITDA margin to the most directly comparable measure prepared in accordance with GAAP because it is difficult to reliably predict or estimate the relevant components without unreasonable effort due to future uncertainties that may potentially have significant impact on such calculations. You should review Billtrust’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed March 9, 2021, under the heading “Risk Factors,” and other documents of Billtrust filed, or to be filed, with the SEC.