SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation Our consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Intercompany accounts and transactions have been eliminated. At the Company’s Special Meeting of Stockholders held on December 7, 2022, the Company’s stockholders approved a proposal to authorize a reverse stock split of the Company’s common stock, at a ratio within the range of 1-for-5 to 1-for-10. The Board approved a 1-for-10 reverse split ratio, and on March 7, 2023, the Company filed a Certificate of Amendment to its Second Amended and Restated Certificate of Incorporation (the “Charter Amendment”) to effect the reverse split effective March 8, 2023. All share and per-share amounts have been retrospectively adjusted to reflect the impact of the reverse stock split. 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, liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. On an ongoing basis, the Company evaluates its estimates and assumptions, including those related to the valuation of vehicle inventory, capitalized website and internal-use software development costs, fair value of common stock, financial instruments, convertible debt, stock-based compensation and income taxes. Management bases its estimates on historical experience and various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from those estimates. Cash and Cash Equivalents The Company considers all highly liquid investments purchased with an original maturity of 3 months or less to be cash equivalents. As of December 31, 2022 and 2021, cash and cash equivalents consisted of bank deposits, money market placements and demand deposits with third-party payment platforms. Restricted Cash Restricted cash includes amounts required by the Ally FLOC (See Note 10 - Borrowings), letters of credit required in conjunction with lease agreements and collateral related to state licensing requirements. As of December 31, 2022 and 2021, the current and non-current restricted cash balances totaled $11.7 million and $11.7 million, respectively. Marketable Securities The Company and its reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of fixed income debt securities. The Company has investments in marketable securities that are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in interest and other expense, net in the Company’s consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of debt securities, if material, are recognized in accumulated other comprehensive income in the Company’s consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company’s net loss only when such securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security’s cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company’s marketable securities prior to their stated maturities for strategic reasons, including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issuer and the Company’s intent to sell, or whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these securities, the Company will write down these investments to fair value through earnings. Accounts Receivable, Net Accounts receivable are primarily due from auction facilities and partner financial institutions that provide financing to our customers, and are recorded net of any allowance for doubtful accounts. The allowance for doubtful accounts is estimated based upon historical experience, current economic conditions and other factors and is evaluated periodically. As of December 31, 2022 and 2021, the allowance for doubtful accounts was $0.1 million and $0.3 million, respectively. Write-offs were immaterial during the years ended December 31, 2022 and 2021. Concentrations of Credit Risk and Other Uncertainties Financial instruments that potentially subject the Company to concentration of credit risk consist of cash and cash equivalents and accounts receivable. Substantially all of the Company’s cash and cash equivalents were deposited in accounts at two financial institutions, and account balances may at times exceed federally insured limits. Management believes that the Company is not exposed to significant credit risk due to the financial strength of the depository institution in which the cash is held. Credit risk with respect to accounts receivable is generally not significant due to diversity of the Company’s customers. The Company routinely assesses the creditworthiness of its customers. The Company generally has not experienced any material losses related to receivables from individual customers, or groups of customers during the years ended December 31, 2022 and 2021. The Company does not require collateral. Due to these factors, no additional credit risk beyond amounts provided for collection losses is believed by management to be probable in the Company’s accounts receivable. As of December 31, 2022, receivables from each of three retail lending institutions accounted for 55%, 21%, and 19%, respectively, of the Company's accounts receivable balance. As of December 31, 2021, receivables from one retail lending institution accounted for 24% of the Company's accounts receivable balance. For the years ended December 31, 2022 and 2021, no customers accounted for more than 10% of the Company’s revenue. Inventory Inventory consists of used vehicles, primarily acquired through auction and individual sellers, as well as some vehicles sourced locally through the trade-in program of an OEM. Inventory is stated at the lower of cost or net realizable value. Acquisition costs and vehicle reconditioning costs, including parts, applied labor, unapplied labor, inbound transportation costs and other incremental costs, are allocated to inventory via specific identification At December 31, 2022 and 2021, inventory was stated at the lower of cost or net realizable value. Net realizable value is the estimated selling price less costs to complete, dispose and transport the vehicles. Estimated selling price is derived from historical data and trends, such as sales price and average days to sell similar vehicles, along with independent market resources. Each reporting period the Company recognizes any necessary adjustments to reflect vehicle inventory at the lower of cost or net realizable value through cost of sales in the accompanying consolidated statements of operations. Vehicles held on consignment are not recorded in the Company’s inventory balance, as title to those vehicles, and, therefore control of the vehicle, remain with the consignors until a customer purchases the vehicle and the vehicle is delivered. Property and Equipment, Net Property and equipment consists of equipment, furniture, fixtures and leasehold improvements and is recorded at cost less of accumulated depreciation. Major replacements and improvements are capitalized, while general repairs and maintenance are expensed as incurred. Depreciation is computed using the straight-line method over the estimated useful life of the related assets: Equipment 3 to 5 years Furniture and fixtures 3 years Leasehold improvements Lesser of useful life or lease term Software Development Costs, Net The Company capitalizes costs associated with customized internal-use software systems that have reached the application development stage. Such capitalized costs include external direct costs utilized in developing or obtaining the applications and payroll and payroll-related expenses for employees who are directly associated with the applications. Capitalization of such costs begins when the preliminary project stage is complete and ceases at the point in which the project is substantially complete and ready for its intended purpose. Amortization is computed using the straight-line method, generally over three years. Impairment of Long-Lived Assets The Company evaluates its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are impaired, the impairment to be recognized is measured by the amount by which the carrying value exceeds the fair value of such assets. Fair value is determined through various valuation techniques, including cost-based, market and income approaches as considered necessary. The Company recognized impairment losses Assets and Liabilities Held for Sale The Company classifies assets to be sold as assets held for sale when (i) Company management has approved and commits to a plan to sell the asset; (ii) the asset is available for immediate sale in its present condition and is ready for sale; (iii) an active program to locate a buyer and other actions required to sell the asset have been initiated; (iv) the sale of the asset is probable; (v) the asset is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and (vi) it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. Assets classified as held for sale are recorded at the lower of the carrying amount or fair value less the cost to sell. Business Combinations The Company uses the acquisition method of accounting under ASC 805, Business Combinations. Each acquired company’s operating results are included in the Company’s Consolidated Financial Statements starting on the acquisition date. The purchase price is equivalent to the fair value of consideration transferred. Tangible and identifiable intangible assets acquired and liabilities assumed as of the acquisition date are recorded at the acquisition date fair value. Goodwill is recognized for the excess of purchase price over the net fair value of assets acquired and liabilities assumed. In contrast, a gain on bargain purchase is recognized in earnings in the period of acquisition for the excess of the estimated fair value of net assets acquired and liabilities assumed over the purchase price. Amounts allocated to assets and liabilities are based upon fair values. Such valuations require management to make significant estimates and assumptions, especially with respect to the identifiable intangible assets. Management makes estimates of fair value based upon assumptions believed to be reasonable and that of a market participant. These estimates are based on available historical information as well as future expectations, and the estimates are inherently uncertain. The separately identifiable intangible assets generally include customer relationships, acquired technology, backlog, trade names, and non-compete agreements. Goodwill Goodwill and indefinite-lived intangible assets are not amortized but rather tested for impairment annually in the fourth fiscal quarter, or more frequently if events or changes in circumstances indicate that impairment may exist. Goodwill impairment is recognized when the quantitative assessment results in the carrying value of the reporting unit exceeding its fair value, in which case an impairment charge is recorded to goodwill to the extent the carrying value exceeds the fair value, limited to the amount of goodwill. The Company recognized impairments of goodwill totaling $0.5 million and zero for the year ended December 31, 2022 and 2021, respectively. Deferred Borrowing Costs Deferred borrowing costs associated with long-term debt facilities are recorded as a reduction to long term debt and amortized into interest expense over the expected term of the related facility. Deferred borrowing costs associated with revolving facilities and lines of credit are recorded as a long-term assets on the consolidated balance sheet and amortized over the expected term of the related facility. Any unamortized deferred borrowing costs upon extinguishment of debt facilities are written off to interest expense on the consolidated statements of operations. See Note 10 - Borrowings and Note 15 - Related Party Transactions for further discussion regarding the deferred borrowing costs. Reinsurance — Contract Reserves The Company acquired certain reinsurance entities as part of the CarLotz Merger. The Company sells certain finance and insurance contracts that are underwritten by third parties. The Company, through its reinsurance subsidiaries, reinsures those contracts, thereby assuming the risk of loss on the underlying insurance contracts. The Company establishes insurance reserves in accordance with ASC 944, Financial Services — Insurance. These amounts are recorded as accrued expenses and other current liabilities on the consolidated balance sheets. Revenue Recognition The Company recognizes revenue in accordance with ASC 606, which prescribes a five-step model that includes: (1) identify the contract; (2) identify the performance obligations; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations; and (5) recognize revenue when (or as) performance obligations are satisfied. The Company recognizes revenue upon transfer of control of goods or services to customers, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. Control passes to the customer at the time of delivery or pick-up. The Company may collect sales taxes and other taxes from customers on behalf of governmental authorities at the time of sale as required. These taxes are accounted for on a net basis and are not included in revenues or cost of sales. The Company has provided cash or non-cash payments to a related party customer, including in the form of equity (see Note 15 - Related Party Transactions). In such cases the Company accounts for such payments under the guidance for consideration payable to a customer and considers whether such amount should be reflected as contra-revenue. The Company recognizes revenue at a point in time as described below. Retail Revenue The Company sells used vehicles to its retail customers through its platform. The price for used vehicles is the stand-alone selling price as set forth in the customer contract. Customers frequently trade-in their existing vehicle to apply toward the price of a used vehicle, which is included in the transaction price as non-cash consideration at the stated trade-in value within the contract. The Company satisfies its performance obligation and recognizes revenue for used vehicle sales at a point in time when the vehicles are delivered to or picked up by the customer. The revenue recognized by the Company is the amount equal to the stand-alone selling price, including any service fees, less any discounts and an estimate for returns. Revenue excludes any sales taxes, title and registration fees, and other government fees that are collected from customers. The Company receives payment for vehicle sales directly from the customer at the time of sale or, if the customer uses financing, from third-party financial institutions within a short period of time following the sale. Any payments received prior to the delivery or pick-up of used vehicles are recorded as deferred revenue within accrued expenses and other current liabilities on the consolidated balance sheets until delivery or pick-up occurs, typically within seven days. The Company’s return policy allows customers to initiate a return during the first seven days or 200 miles after delivery (whichever comes first). Retail vehicle revenue is recognized net of a reserve for returns, which is estimated using historical experience and trends. The reserve for estimated returns is presented gross on the consolidated balance sheets, with an asset recorded in prepaid expenses and other current assets and a refund liability recorded in accrued expenses and other current liabilities. The net impact of the returns reserve is immaterial. Other Revenue The Company provides buyers on its platform with options for financing, insurance, and extended warranties, as well as other value-added products such as vehicle service contracts, guaranteed asset protection and wheel and tire coverage. All such services are provided by unrelated third-party vendors and the Company has agreements with each of these vendors giving the Company the right to offer such services on its platform. When a buyer selects a service from these providers, the Company earns a commission based on the actual price paid or financed. The Company concluded that it is an agent for these transactions because it does not control the products before they are transferred to the customer. Accordingly, the Company recognizes commission revenue at the time of sale. In the event that a customer prematurely cancels certain finance and insurance products, the Company may be obligated to return all or part of its commission. Other revenue is recognized net of a reserve for cancellations, which is estimated using historical experience and trends. The reserve for estimated cancellations at December 31, 2022 and 2021 was $2.7 million and $2.3 million, respectively, and is presented in accrued expenses and other current liabilities on the consolidated balance sheets. Wholesale Vehicle Revenue The Company sells vehicles through wholesale auctions. These vehicles sold to wholesalers are primarily acquired from customers who trade-in their existing vehicles and such vehicles do not meet the Company’s quality standards to list and sell through its website. The Company satisfies its performance obligation and recognizes revenue for wholesale vehicle sales at a point in time when the vehicle is sold at auction or directly to a wholesaler. The transaction price is typically due and collected within one week of the date of the sale. Costs to obtain and fulfill a contract The Company elected, as a practical expedient, to expense sales commissions when incurred because the amortization period would have been less than one year. These costs are recorded within selling, general and administrative expenses on the consolidated statements of operations. Cost of Sales Cost of sales includes the cost to acquire used vehicles and direct and indirect vehicle reconditioning costs associated with preparing the vehicles for resale. Vehicle reconditioning costs include parts, labor, inbound transportation costs and other incremental costs. These costs include inbound shipping costs of purchased vehicles, mechanical inspection, vehicle preparation supplies and repair costs necessary for reconditioning the vehicle for resale. Cost of sales also includes any necessary adjustments to reflect vehicle inventory at the lower of cost or net realizable value. Shipping and Handling The Company’s logistics costs related to transporting its used vehicle inventory primarily includes third-party transportation fees. The portion of these costs related to inbound transportation from the point of acquisition to the relevant reconditioning facility is included in cost of sales when the related used vehicle is sold. Logistics costs not included in cost of sales are accounted for as costs to fulfill contracts with customers and are included in selling, general and administrative expenses in the consolidated statements of operations and were $8.7 million and $8.1 million during the years ended December 31, 2022 and 2021, respectively, excluding compensation and benefits. Selling, General and Administrative Expenses Selling, general and administrative expenses primarily include compensation and benefits, advertising, facilities costs, technology expenses and other administrative expenses. Selling, general and administrative expenses exclude costs to recondition vehicles and inbound transportation, which are included in costs of sales, as well as payroll and stock-based compensation costs capitalized to website and internal-use software development costs. For the years ended December 31, 2022 and 2021, advertising expense was $32.3 million and $49.8 million, respectively. Advertising costs are expensed as incurred. Stock-Based Compensation Expense Stock-based compensation expense related to awards to employees are measured at the grant date based on the fair value of the award. The fair value of the award is expensed on a straight-line basis over the requisite service period, which is generally the vesting period. The Company elects to account for forfeitures as they occur by reversing compensation cost when awards are forfeited. Exercises of option awards are settled by issuing new shares. See Note 14 - Stock-Based Compensation Plans for additional information on stock-based compensation. Interest and Other Income Interest and other income is comprised of bank interest and other miscellaneous items. Interest Expense Interest expense includes interest incurred from the Convertible Notes, Senior Unsecured Notes, and the flooring line of credit facilities, as well as the amortization of deferred borrowing costs, debt discounts and other miscellaneous items. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. The authoritative guidance on fair value measurements establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows: Level 1 — Quoted prices in active markets for identical assets or liabilities. Level 2 — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the asset or liability. The Company recognizes transfers between the levels as of the actual date of the event or change in circumstances that caused the transfer. There were no transfers between levels during the years ended December 31, 2022 and 2021. As of December 31, 2022, the Company had $2.0 million of assets and $48 thousand of liabilities measured at fair value. Escrow Shares In connection with the closing of the Company's merger with Insurance Acquisition Corp. on October 13, 2020, (the "IAC Merger"), 600,021 shares of the Company’s Class A common stock (the “Escrow Shares”) were deposited into an escrow account, with each former Legacy Shift stockholder listed as beneficiary in proportion to their percentage ownership of Legacy Shift common shares immediately prior to the IAC Merger. The Escrow Shares will be released to the beneficiaries if the following conditions are achieved following October 13, 2020, the date of the closing of the IAC Merger: i. if at any time during the 12 months following the closing, the closing share price of the Company’s Class A common stock is greater than $120.00 over any 20 trading days within any 30 trading day period, 50% of the Escrow Shares will be released; and ii. if at any time during the 30 months following the closing, the closing share price of the Company’s Class A common stock is greater than $150.00 over any 20 trading days within any 30 trading day period, 50% of the Escrow Shares will be released. iii. If, during the 30 months following the closing, there is a change of control (as defined in the IAC Merger Agreement) that will result in the holders of the Company’s Class A common stock receiving a per share price equal to or in excess of $100.00 per share (as equitably adjusted for stock splits, stock dividends, special cash dividends, reorganizations, combinations, recapitalizations and similar transactions affecting the Class A common stock after the date of the IAC Merger), then all remaining Escrow Shares shall be released to the Legacy Shift stockholders effective as of immediately prior to the consummation of such change of control. The Escrow Shares are legally outstanding and the beneficiaries retain all voting, dividend and distribution rights applicable to the Company’s Class A common stock while the shares are in escrow. If the conditions for the release of the Escrow Shares are not met, the shares and any dividends or distributions arising therefrom shall be returned to the Company. The Escrow Shares are not considered outstanding for accounting purposes, and as such are excluded from the calculation of basic net loss per share (see Note 18 - Net Loss Per Share). The Escrow Shares meet the accounting definition of a derivative financial instrument. Prior to the cancellation of the first tranche on October 13, 2021, the number of Escrow Shares that would have ultimately been released was partially dependent on variables (namely, the occurrence of a change in control) that are not valuation inputs to a “fixed for fixed” option or forward contract, and therefore the Escrow Shares were not considered to be indexed to the Company’s Class A common stock and were therefore classified as a liability. The Company’s obligation to release the Escrow Shares upon achievement of the milestones was initially recorded to financial instruments liability on the consolidated balance sheets at fair value as of the date of the IAC Merger. Subsequent changes in the fair value of the liability were recorded to change in fair value of financial instruments on the consolidated statements of operations. The Escrow Shares were remeasured on a recurring basis using Level 3 inputs. The fair value of the Escrow Shares was determined using a Monte Carlo valuation model, which requires significant estimates including the expected volatility of our Class A common stock. The expected annual volatility of our Class A common stock was estimated to be 65.53% as of December 31, 2021, based on the historical volatility of comparable publicly traded companies. The table below illustrates the changes in the fair value of the Company’s Level 3 financial instruments liability: (in thousands) 2021 Balance as of January 1, $ 25,230 Remeasurement of Escrow Shares liability (18,893) Reclassification of Escrow Shares liability to additional paid-in capital (6,337) Balance as of December 31, $ — As of the first anniversary of the IAC Merger on October 13, 2021, the first tranche of 300,011 Escrow Shares had failed to satisfy the $120.00 stock performance hurdle. As a result, the shares were returned to the Company for cancellation. Following the return of the first tranche of the Escrow Shares to the Company on October 13, 2021, the Escrow Shares met the "fixed for fixed" option or forward contract criteria for equity classification. As such, changes in fair value of the Escrow Shares through October 13, 2021 were recorded in change in fair value of financial instruments on the consolidated statements of operations. The fair value of the shares on October 13, 2021 of $6.3 million, measured using the Monte Carlo valuation model, was reclassified to additional paid-in capital on the consolidated balance sheets. During the year ended December 31, 2021, the Company recognized a gain related to the change in fair value of the Escrow Shares of $18.9 million, which is included in change in fair value of financial instruments on the consolidated statements of operations. Income Taxes The Company accounts for income taxes using the asset and liability method. The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. Deferred tax assets and liabilities are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. In evaluating the ability to recover its deferred income tax assets, the Company considers all available positive and negative evidence, including its operating results, ongoing tax planning and forecasts of future taxable income on a jurisdiction-by-jurisdiction basis. In the event the Company determines that it would be able to realize its deferred tax assets in the future in excess of their net recorded amount, it would make an adjustment to the valuation allowance that would reduce the provision for income taxes. Conversely, in the event that all or part of the net deferred tax assets are determined not to be realizable in the future, an adjustment to the valuation allowance would be charged to earnings in the period when such determination is made. As of December 31, 2022 and 2021, respectively, the Company recorded a full valuation allowance on its deferred tax assets. Tax benefits related to uncertain tax positions are recognized when it is more likely than not that a tax position will be sustained during an audit. Interest and penalties related to unrecognized tax benefits are included within the provision for income tax. Net Loss Per Share Attributable to Common Stockholders Basic and diluted net loss per share attributable to common stockholders is presented in conformity with the two-class method required for participating securities. Under the two-class method, net loss is attributed to common stockholders and participating securities based on their participation rights. The Company considers all series of its redeemable convertible preferred stock to be participating securities. Under the two-class method, the net loss attributable to common stockholders is not allocated to the convertible preferred stock as the holders of the Company’s convertible preferred stock do not have a contractual obligation to share in the Company’s losses. Under the two-class method, basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period. For periods in which the Company reports net losses, diluted net loss per common share attributable to common stockholders is the same as basic net loss per common share attributable to common stockholders because potentially dilutive common shares are not assumed to have been issued if their effect is anti-dilutive. Liquidity and Management's Plan For the year ended December 31, 2022 and 2021, the |