The Company’s consolidated financial statements were prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The accompanying consolidated financial statements include all wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The consolidated statements of operations include the results of entities acquired from the dates of the acquisitions for accounting purposes.

See “Recently Issued Accounting Pronouncements” below for a description of accounting principle changes adopted during the year ended December 31, 2019 related to leases.

The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and the related disclosures at the date of the financial statements, as well as the reported amounts of revenue and expenses during the periods presented. Significant items subject to such estimates, judgments and assumptions include revenue recognition, website and internal-use software development costs, goodwill, valuation and recoverability of intangible assets with finite lives and other long-lived assets, stock-based compensation, and income taxes. To the extent there are material differences between these estimates, judgments or assumptions and actual results, the Company’s consolidated financial statements will be affected. In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP and does not require management’s judgment in its application.

Cash includes demand deposits with banks or financial institutions. Cash equivalents include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and that are so near their maturity that they present minimal risk of changes in value because of changes in interest rates. The Company’s cash equivalents include only investments with original maturities of three months or less. The Company regularly maintains cash in excess of federally insured limits at financial institutions. Cash and cash equivalents exclude the Company’s restricted cash balances of $3.7 million and $4.6 million as of December 31, 2019 and 2018, respectively, which are included within prepaid expenses and other current assets and other long-term assets on the consolidated balance sheets.

Marketable securities consist primarily of commercial paper and investment grade U.S. and non-U.S.-issued corporate debt securities. The Company invests in a diversified portfolio of marketable securities and limits the concentration of its investment in any particular security. Marketable securities with original maturities of three months or less are included in cash and cash equivalents and marketable securities with original maturities greater than three months, but less than one year, are included in short term investments on the consolidated balance sheets. The Company determines the classification of its marketable securities as available-for-sale or held-to-maturity at the time of purchase and reassesses these determinations at each balance sheet date. Debt securities are classified as held-to-maturity when the Company has the intent to hold the securities to maturity. Held-to-maturity securities are stated at amortized cost and are periodically assessed for other-than-temporary impairment. The amortized cost of debt securities is adjusted for the amortization of premiums and accretion of discounts to maturity, which is recognized as interest income within net interest expense in the consolidated statements of operations. Interest income is recognized when earned.

Accumulated other comprehensive loss consists of foreign currency translation adjustments. The financial statements of the Company’s foreign subsidiaries are translated from their functional currency into U.S. dollars. Assets and liabilities are translated at

period end rates of exchange, and revenue and expenses are translated using average rates of exchange. The resulting gain or loss is included in accumulated other comprehensive loss on the consolidated balance sheets.

Property and equipment is recorded at cost and depreciated using the straight-line method over the estimated useful lives of the related assets. The useful lives are as follows:

		Estimated Useful Life
Computer equipment		2-3 years
Furniture and fixtures		5 years
Developed software		1-3 years
Purchased software and digital assets		3-5 years
Leasehold improvements		Shorter of expected useful life or lease term

Maintenance and repair costs are charged to expense as incurred. Major improvements, which extend the useful life of the related asset, are capitalized. Upon disposal of a fixed asset, the Company records a gain or loss based on the difference between the proceeds received and the net book value of the disposed asset.

See Note 3, Revenue, below for a description of the Company’s accounts receivable accounting policy.

Advertising costs are generally expensed as incurred in connection with the requisite service period. Certain advertising production costs are capitalized and expensed when the advertisement first takes place. For the years ended December 31, 2019, 2018 and 2017, expenses attributable to advertising totaled approximately $237.1 million, $170.3 million and $107.2 million, respectively. Advertising costs are recorded in sales and marketing expense on the Company’s consolidated statements of operations.

The Company measures compensation expense for all stock-based awards, including stock options and restricted stock units, at fair value on the date of grant and recognizes compensation expense over the service period on a straight-line basis for awards expected to vest.

The Company uses the Black-Scholes option-pricing model to determine the fair value for stock options. Management has determined the Black-Scholes fair value of stock option awards and related stock-based compensation expense with the assistance of third-party valuations. Determining the fair value of stock-based awards at the grant date requires judgment. The determination of the grant date fair value of options using an option-pricing model is affected by the Company’s common stock fair value as well as assumptions regarding a number of other complex and subjective variables. If any of the assumptions used in the Black-Scholes model changes significantly, stock-based compensation for future awards may differ materially compared with the awards granted previously.

The Black-Scholes option-pricing model requires the use of highly subjective and complex assumptions, including the expected term and the price volatility of the underlying stock, which determine the fair value of stock-based awards. These assumptions include:

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Risk-free rate. Risk-free interest rates are derived from U.S. Treasury securities as of the option grant date.

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Expected dividend yields. Expected dividend yields are based on our historical dividend payments, which have been zero to date (excluding the preferred stock tax distributions made by Seamless Holdings prior to 2015).

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Volatility. Since the first quarter of 2018, expected volatility has been based on the historical and implied volatilities of the Company’s own common stock. Prior to 2018, the expected stock price volatility was based on a combination of the historical and implied volatilities of comparable publicly-traded companies and the historical volatility of our common stock due to our limited trading history as there was no active external or internal market for our common stock prior to the Company’s initial public offering in April 2014.

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Expected term. The expected term calculation for option awards considers a combination of the Company’s historical and estimated future exercise behavior.

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Forfeiture rate. Forfeiture rates are estimated using historical actual forfeiture trends as well as our judgment of future forfeitures. These rates are evaluated at least annually and any change in compensation expense is recognized in the period of the change. The estimation of stock awards that will ultimately vest requires judgment and, to the extent actual

results or updated estimates differ from our current estimates, such amounts will be recorded as a cumulative adjustment in the period in which the estimates are revised. The Company considers many factors when estimating expected forfeitures, including the types of awards and employee class. Actual results, and future changes in estimates, may differ substantially from management’s current estimates.

See Note 11, Stock-Based Compensation, for the weighted-average assumptions used to estimate the fair value of options granted during the years ended December 31, 2019, 2018 and 2017.

Income tax (benefit) expense is determined using the asset and liability method. Under this method, deferred tax assets and liabilities are calculated based upon the temporary differences between the financial statement and income tax bases of assets and liabilities using the enacted tax rates that are applicable in a given year. The utilization of deferred tax assets is limited by the amount of taxable income expected to be generated within the allowable carryforward period and other factors. The Company records a valuation allowance to reduce deferred tax assets to the amount management believes is more likely than not to be realized. As of December 31, 2019 and 2018, a valuation allowance of $15.7 million and $23.8 million, respectively, was recorded on the Company’s consolidated balance sheets. See Note 12, Income Taxes, for additional information.

The Company utilizes a two-step approach to recognizing and measuring uncertain tax positions (“tax contingencies”). 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 its tax positions and tax benefits, which may require periodic adjustments, and which may not accurately forecast actual outcomes.

Management believes that it is more likely than not that forecasted income, including future reversals of existing taxable temporary differences, will be sufficient to fully recover the net deferred tax assets. In the event the Company determines that all or part of the net deferred tax assets are not realizable in the future, we will adjust the valuation allowance with the adjustment recognized as expense in the period in which such determination is made. The calculation of income tax liabilities involves significant judgment in estimating the impact of uncertainties and complex tax laws. In addition, the Company’s tax returns are subject to audit by various U.S. and foreign tax authorities. Resolution of these uncertainties in a manner inconsistent with our expectations could have a material impact on the Company’s financial position and results of operations.

Due to the reduced cost of repatriating unremitted earnings as a result of U.S. tax legislation signed into law in December of 2017, the Tax Cuts and Jobs Act (the “Tax Act”), the Company plans to repatriate cash from the U.K. to the U.S. The Company estimated no additional tax liability as of December 31, 2019 and 2018 as there are no applicable withholding taxes for the transaction. Management regularly evaluates whether foreign earnings are expected to be permanently reinvested. This evaluation requires judgment about the future operating and liquidity needs of the Company’s foreign subsidiary. Changes in economic and business conditions, foreign or U.S. tax laws, or the Company’s financial situation could result in changes in these judgments and the need to record additional tax liabilities.

The Company includes interest and penalties related to tax contingencies in the provision for income taxes in the consolidated statements of operations. Management does not expect the total amount of unrecognized tax benefits to significantly change in the next twelve months.

The estimated fair values of acquired intangible assets are determined as of the acquisition date based on significant management estimates included in established valuation techniques with the assistance of third-party valuations. See Note 4, Acquisitions, for the estimated acquisition date fair values and valuation methodologies of assets acquired in the periods presented. Intangible assets with finite useful lives are amortized using the straight-line method over their estimated useful lives and are reviewed for impairment. The Company evaluates intangible assets with finite and indefinite useful lives and other long-lived assets for impairment whenever events or circumstances indicate that they may not be recoverable, or at least annually. If management determines in its qualitative assessment that it is more likely than not that the assets may not be recoverable, the recoverability of finite and other long-lived assets is measured by comparing the carrying amount of an asset group to the future undiscounted net cash flows expected to be generated by that asset group. The Company groups assets for purposes of such review at the lowest level for which identifiable cash flows of the asset group are largely independent of the cash flows of the other groups of assets and liabilities. The amount of impairment to be recognized for finite and indefinite-lived intangible assets and other long-lived assets is calculated as the difference between the carrying value and the fair value of the asset group, generally measured by discounting estimated future cash flows. There were no impairment indicators present during the years ended December 31, 2019, 2018 or 2017.

The costs incurred in the preliminary stages of website and software development are expensed as incurred. Once an application has reached the development stage, internal and external costs, if direct and incremental and deemed by management to be significant, are capitalized and amortized on a straight-line basis over the estimated useful life of the application. Maintenance and enhancement costs, including those costs in the post-implementation stages, are typically expensed as incurred, unless such costs relate to substantial upgrades and enhancements to the website or software that result in added functionality, in which case the costs are capitalized and amortized on a straight-line basis over the estimated useful lives. Amortization expense related to capitalized website and software development costs is included in depreciation and amortization in the consolidated statements of operations. The Company capitalized $64.5 million, $41.1 million and $26.0 million of website development costs during the years ended December 31, 2019, 2018 and 2017, respectively.

Goodwill represents the excess of the cost of an acquired business over the fair value of the assets acquired at the date of acquisition. The Company’s methodology for allocating the purchase price of acquisitions is based on established valuation techniques that consider a number of factors, including valuations performed by third-party appraisers. As of December 31, 2019, the Company had $1,008.0 million in goodwill on its consolidated balance sheets. The Company assesses the impairment of goodwill at least annually and whenever events or changes in circumstances indicate that goodwill may be impaired. Absent any special circumstances that could require an interim test, the Company has elected to test for goodwill impairment at September 30 of each year. The Company has one reporting unit in testing goodwill for impairment.

In testing goodwill for impairment, the Company may elect to utilize a qualitative assessment to evaluate whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the qualitative assessment indicates that goodwill impairment is more likely than not, the Company performs a quantitative impairment test. The Company would recognize an impairment charge for the amount by which the reporting unit’s carrying amount exceeds its fair value, if any, not to exceed the carrying amount of goodwill.

Management determined the fair value of the Company as of September 30, 2019 by using a market-based approach that utilized our market capitalization, as adjusted for factors such as a control premium. After consideration of the Company’s market capitalization, business growth and other factors, management determined that it was more likely than not that the fair value of the Company exceeded its carrying amount at September 30, 2019 and that further analysis was not required.

Additionally, as part of the interim review for indicators of impairment, management analyzed potential changes in value based on operating results for the three months ended December 31, 2019 compared to expected results. Management also considered how the Company’s market capitalization, business growth and other factors used in the September 30, 2019 impairment analysis, could be impacted by changes in market conditions and economic events. For example, the fair market value of the Company’s stock has decreased since September 30, 2019. Management considered these trends in performing its assessment of whether an interim impairment review was required. Based on this interim assessment, management concluded that as of December 31, 2019, there were no events or changes in circumstances that indicated it was more likely than not that the Company’s fair value was below its carrying value.

The Company determined there was no goodwill impairment during the years ended December 31, 2019, 2018 and 2017. Nevertheless, significant changes in global economic and market conditions could result in changes to expectations of future

financial results and key valuation assumptions. Such changes could result in revisions of management’s estimates of the Company’s fair value and could result in a material impairment of goodwill.

The Company has incurred debt issuance costs in connection with its debt facilities and related amendments. Amounts paid directly to lenders are classified as issuance costs. Commitment fees and other costs directly associated with obtaining credit facilities are deferred financing costs which are recorded in the consolidated balance sheets and amortized over the term of the facility. The Company allocated deferred debt issuance costs incurred for its credit facility between the revolver and term loan based on their relative borrowing capacity. Deferred debt issuance costs associated with the revolving credit facility are recorded within other assets and those associated with the term loan and senior notes are recorded as a reduction of the carrying value of the debt on the consolidated balance sheets. All deferred debt issuance costs are amortized using the effective interest rate method to interest expense within net interest expense on the Company’s consolidated statements of operations. The Company records the write-off of unamortized debt issuance costs upon the extinguishment or modification of the related debt facility within interest expense in the consolidated statements of operations. See Note 10, Debt, for additional details.

Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. The standards also establish a fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. See Note 16, Fair Value Measurement, for details of the fair value hierarchy and the related inputs used by the Company.

Financial instruments which potentially subject the Company to concentrations of credit risk consist principally of accounts receivable. For the years ended December 31, 2019, 2018 and 2017, the Company had no customers which accounted for more than 10% of revenue or accounts receivable.

See Note 3, Revenue, below for a description of the Company’s revenue recognition policy.

On January 1, 2019, the Company adopted Accounting Standards Codification Topic 842, Leases (“ASC Topic 842”) using the modified retrospective transition approach by applying the new standard to all leases existing at the date of initial application. The Company elected the optional practical expedient package which, among other things, includes retaining the historical classification of leases.

Under ASC Topic 842, the Company determines if an arrangement is a lease at inception of a contract. Leases with an initial term of 12 months or less are not recorded on the balance sheet. Non-lease components associated with lease components in the Company’s lease contracts are treated as a single lease component. Operating lease right-of-use assets and liabilities commencing after January 1, 2019 are recognized at commencement date based on the present value of lease payments over the lease term. The right-of-use asset also includes any lease payments made prior to commencement and is recorded net of any lease incentives received. Because the rate implicit in each lease is not readily determinable, the Company uses its incremental borrowing rate to determine the present value of the lease payments. To determine the incremental borrowing rate, the Company uses information including the risk-free interest rate for the remaining lease term, the Company’s implied credit rating and interest rates of similar debt instruments of entities with comparable credit ratings. The Company recognizes rent expense on a straight-line basis over the lease term, which is allocated on a headcount basis to operations and support, sales and marketing, technology and general and administrative costs and expenses in the consolidated statements of operations.

Prior period amounts have not been adjusted and continue to be reported under ASC Topic 840 with the difference between cash rent payments and straight-lined rent expenses recorded as a deferred rent liability presented within other accruals in the consolidated balance sheets. The Company also has landlord-funded leasehold improvements that were recorded as tenant allowances, which were amortized as a reduction of rent expense over the noncancelable terms of the operating leases. See Recently Issued Accounting Pronouncements below for additional details of the impact of the adoption of ASC Topic 842.

The Company has one reportable segment, which has been identified based on how the chief operating decision maker manages the business, makes operating decisions and evaluates operating performance.

In June 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 introduces a new forward-looking approach, based on expected losses, to estimate credit losses on certain types of financial instruments, including trade receivables and held-to-maturity debt securities, which will require entities to incorporate the consideration of historical information, current information and reasonable and supportable forecasts. This ASU also expands disclosure requirements. ASU 2016-13 is effective for the Company beginning in the first quarter of 2020 and early adoption is permitted. The guidance will be applied using the modified-retrospective approach. The adoption of ASU 2016-13 did not have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

In February 2016, and in subsequent updates, the FASB issued ASC Topic 842. Under ASC Topic 842, a lessee recognizes a liability to make lease payments and a right-of-use asset for all leases (with the exception of short-term leases) in the statement of financial position at the commencement date. ASC Topic 842 was effective for and adopted by the Company in the first quarter of 2019. The Company adopted ASC Topic 842 using the modified retrospective transition method applied to all existing leases beginning January 1, 2019. Periods prior to adoption were not adjusted and continue to be reported in accordance with historic accounting guidance under ASC Topic 840. The adoption of ASC Topic 842 resulted in the recognition on the consolidated balance sheets as of January 1, 2019 of right-of-use assets of $81.2 million and lease liabilities for operating leases of $97.7 million. but did not result in a cumulative-effect adjustment on retained earnings. The operating lease right-of-use asset includes the impact upon adoption of ASC Topic 842 of the derecognition of lease incentives, deferred rent, below-market lease intangibles, cease-use liabilities and prepaid rent balances recognized in prepaid expenses and other current assets and current and noncurrent other accruals on the consolidated balance sheets as of December 31, 2018. The adoption of ASC Topic 842 did not have a material impact to the Company's consolidated results of operations or cash flows. See Note 9, Commitments and Contingencies, for additional details.