Summary of Significant Accounting Policies and Nature of Operations | Note 1 – Summary of Significant Accounting Policies and Nature of Operations CarParts.com, Inc. (including its subsidiaries) is a leading online retailer of aftermarket auto parts and accessories. The Company primarily sells its products to individual consumers through its flagship website located at www.carparts.com www.carparts.com/investor The Company’s products consist of replacement parts serving the wear and tear and body repair market, hard parts to serve the maintenance and repair market, and performance parts and accessories. The replacement parts category is primarily comprised of body parts for the exterior of an automobile as well as certain other mechanical or electrical parts that are not related to the functioning of the engine or drivetrain. Our parts in this category typically replace original body parts that have been damaged as a result of general wear and tear or a collision. In addition, we sell an extensive line of mirror products, including one of our own house brands called Kool-Vue ® , which are marketed and sold as aftermarket replacement parts and as upgrades to existing parts. The hard parts category is primarily comprised of engine components and other mechanical and electrical parts including one of our house brands of catalytic converters called Evan Fischer ® . These hard parts serve as replacement parts that are generally used by professionals and do-it-yourselfers for engine and mechanical maintenance and repair. We also offer performance versions of many parts sold in each of the above categories. Performance parts and accessories generally consist of parts that enhance the performance of the automobile, upgrade existing functionality of a specific part or improve the physical appearance or comfort of the automobile. The Company is a Delaware C corporation and is headquartered in Torrance, California. The Company has employees located in both the United States and the Philippines. Fiscal Year The Company’s fiscal year is based on a 52 53 Basis of Presentation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Based on our current operating plan, we believe that our existing cash, cash equivalents, investments, cash flows from operations and available debt or equity financing will be sufficient to finance our operational cash needs through at least the next twelve months. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. A key estimate made by management relates primarily to determining the net realizable value of inventory. Actual results could differ from this estimate. Cash and Cash Equivalents The Company considers all money market funds and short-term investments purchased with original maturities of ninety days or less to be cash equivalents. Fair Value of Financial Instruments Financial instruments that are not measured at fair value include accounts receivable, accounts payable and debt. Refer to “ Note 2 – Fair Value Measurements Accounts Receivable and Concentration of Credit Risk Accounts receivable are stated net of allowance for doubtful accounts. The allowance for doubtful accounts is determined primarily on the basis of past collection experience and general economic conditions. The Company determines terms and conditions for its customers primarily based on the volume purchased by the customer, customer creditworthiness and past transaction history. Concentrations of credit risk are primarily limited to the offline sales customer base to which the Company’s products are sold, which is related to trade receivables that are approximately 20% and 20% of total accounts receivable, net, balance as of the year ended December 30, 2023 and December 31, 2022, respectively. The Company does not believe significant concentrations of credit risk exist as a significant portion of the outstanding trade receivables balance is insured by a third-party credit insurance company. Inventory Inventories consist of finished goods available-for-sale and are stated at the lower of cost or net realizable value, determined using the first-in first-out (“FIFO”) method. The Company purchases inventory from suppliers both domestically and internationally, and routinely enters into supply agreements with Asia-Pacific based suppliers in China and Taiwan and also U.S. based suppliers who are primarily drop-ship vendors. The Company believes that its products are generally available from more than one supplier and seeks to maintain multiple sources for its products, both internationally and domestically. The Company primarily purchases products in bulk quantities to take advantage of quantity discounts and to ensure inventory availability. Inventory is reported at the lower of cost or net realizable value. We recognize provisions for obsolete and slow-moving inventory primarily based on judgments about expected disposition of inventory, generally, through sales, or liquidations of obsolete inventory, and expected recoverable values per SKU based on currently available or historical information. Inventory as of December 30, 2023 and December 31, 2022 included items in-transit to our distribution centers, in the amounts of $26,801 and $17,444, respectively. Website and Software Development Costs The Company capitalizes certain costs associated with website and software developed for internal use according to ASC 350-50 - Intangibles – Goodwill and Other – Website Development Costs Intangibles – Goodwill and Other – Internal-Use Software two Long-Lived Assets and Intangibles Subject to Amortization The Company accounts for the impairment and disposition of long-lived assets, including intangibles subject to amortization, in accordance with ASC - 360 Property, Plant and Equipment . Deferred Financing Costs Deferred financing costs are being amortized to interest expense over the term of the revolving loan using the straight-line method, which approximates amortization the effective interest method. Revenue Recognition The Company recognizes revenue from product sales and shipping revenues, net of promotional discounts and return allowances, when the following revenue recognition criteria are met: a contract has been identified, separate performance obligations are identified, the transaction price is determined, the transaction price is allocated to separate performance obligations and revenue is recognized upon satisfying each performance obligation. The Company transfers the risk of loss or damage upon shipment, therefore, revenue from product sales is recognized when it is shipped to the customer. Return allowances, which reduce product revenue by the Company’s best estimate of expected product returns, are estimated using historical experience. The Company evaluates the criteria of ASC 606 - Revenue Recognition Principal Agent Considerations Payments received prior to the delivery of goods to customers are recorded as deferred revenue in other current liabilities in the consolidated balance sheets. The Company periodically provides incentive offers to its customers to encourage purchases. Such offers include current discount offers, such as percentage discounts off current purchases and other similar offers. Current discount offers, when accepted by the Company’s customers, are treated as a reduction to the purchase price of the related transaction. Sales discounts are recorded in the period in which the related sale is recognized. Sales return allowances are estimated based on historical amounts and are recorded upon recognizing the related sales. Credits are issued to customers for returned products. No customer accounted for more than 10% of the Company’s net sales. The following table provides an analysis of the allowance for sales returns and the allowance for doubtful accounts (in thousands): Charged to Balance at Revenue, Balance at Beginning Cost or (Deductions) or End of of Period Expenses Recoveries Period Fifty-Two Weeks Ended December 30, 2023 Allowance for sales returns $ 3,073 $ 45,526 $ (45,408) $ 3,191 Allowance for doubtful accounts 35 (6) (28) 1 Fifty-Two Weeks Ended December 31, 2022 Allowance for sales returns $ 2,936 $ 44,950 $ (44,813) $ 3,073 Allowance for doubtful accounts 9 22 4 35 Cost of Sales Cost of sales consists of the direct costs associated with procuring parts from suppliers and delivering products to customers. These costs include direct product costs, outbound freight and shipping costs, warehouse supplies and warranty costs, partially offset by purchase discounts. Total freight and shipping expense, excluding surcharges, included in cost of sales for fiscal years 2023, 2022 and 2021 was $105,830, $93,593 and $89,785, respectively. Depreciation and amortization expenses are excluded from cost of sales and included in operating expense. Warranty Costs The Company or the vendors supplying its products provide the Company’s customers limited warranties on certain products that range from 30 days to lifetime. Historically, the Company’s vendors have been the party primarily responsible for warranty claims. Standard product warranties sold separately by the Company are recorded as deferred revenue and recognized ratably over the life of the warranty, ranging from one Operating Expense Operating expense consists of marketing, general and administrative, fulfillment, and technology expense. The Company also includes share-based compensation expense in the applicable operating expense category based on the respective equity award recipient’s function. Marketing costs, including advertising, are expensed as incurred. The majority of advertising expense is paid to internet search engine service providers, television advertising, and internet commerce facilitators. For fiscal years 2023, 2022 and 2021, the Company recognized advertising costs of $83,146, $79,854 and $69,102, respectively. Marketing expense also includes payroll and related expenses associated with our customer service and marketing personnel. General and administrative expense consists primarily of administrative payroll and related expenses, merchant processing fees, legal and professional fees and other administrative costs. Fulfillment expense consists primarily of payroll and related costs associated with warehouse employees and the Company’s purchasing group, facilities rent, building maintenance, depreciation and other costs associated with inventory management and wholesale operations. Technology expense consists primarily of payroll and related expenses of the Company’s information technology personnel, the cost of hosting the Company’s servers, communications expenses and internet connectivity costs, computer support and website and software development amortization expense. Marketing expense, general and administrative expense, and fulfillment expense also includes depreciation and amortization expense. Share-Based Compensation The Company accounts for share-based compensation in accordance with ASC 718 - Compensation – Stock Compensation Compensation expense for stock options is based on the fair value estimated on the date of grant using an option pricing model, and is recognized over the vesting period of three In accordance with ASC 718, we recognize forfeitures as they occur. Other Income, net Other income, net consists of miscellaneous income or expense and interest income comprised primarily of interest income on investments. Interest Expense Interest expense consists primarily of interest expense on our revolving loan and letters of credit balances, deferred financing cost amortization, and finance lease interest. Income Taxes The Company accounts for income taxes in accordance with ASC 740 - Income Taxes The Company utilizes a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount which is more than 50% likely to be realized upon ultimate settlement. The Company considers many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately forecast actual outcomes. As of December 30, 2023, the Company had no material unrecognized tax benefits, interest or penalties related to federal and state income tax matters. The Company’s policy is to record interest and penalties as income tax expense. Taxes Collected from Customers and Remitted to Governmental Authorities The Company presents taxes collected from customers and remitted to governmental authorities on a net basis in accordance with the guidance on ASC 606-10-32-2 - Taxes Collected from Customers and Remitted to Governmental Authorities. Leases The Company accounts for leases in accordance with ASC 842 – Leases (“ASC 842”), which requires lessees to record right-of-use assets and related right-of-use obligations on the balance sheet for all leases with terms longer than 12 months. The Company determines if an arrangement contains a lease at inception. For purposes of calculating operating lease obligations under the standard, the Company's lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such option. The Company's leases do not contain material residual value guarantees or material restrictive covenants. The discount rate used to measure a lease obligation should be the rate implicit in the lease; however, the Company’s operating leases generally do not provide an implicit rate. Accordingly, the Company uses its incremental borrowing rate at lease commencement to determine the present value of lease payments. The incremental borrowing rate is an entity-specific rate which represents the rate of interest a lessee would pay to borrow on a collateralized basis over a similar term with similar payments. Lease expense is recognized on a straight-line basis over the lease term. Foreign Currency Translation Effective July 3, 2022, management reassessed our functional currency determination for our Philippines subsidiary in accordance with ASC 830, Foreign Currency Matters Comprehensive Loss The Company reports comprehensive loss in accordance with ASC 220 - Comprehensive Income Recent Accounting Standard Not Yet Adopted In December 2023, the FASB issued ASU 2023-09, Income Taxes |