The accompanying Condensed Consolidated Financial Statements have been prepared in accordance with U.S. GAAP and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission ("SEC") regarding interim financial reporting on Form 10-Q. Accordingly, certain information and disclosures required for complete financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant

to such rules and regulations. These Condensed Consolidated Financial Statements and notes should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2021 (as filed with the SEC on March 9, 2022). Since the date of that filing, there have been no changes or updates to the Company's significant accounting policies, other than those described below.

In the opinion of management, the accompanying Condensed Consolidated Financial Statements contain all normal recurring adjustments necessary for a fair statement of financial position, results of operations, comprehensive loss, and cash flows as of the dates and for the interim periods presented. The results of operations for the three and six months ended June 30, 2022 may not be indicative of the results for the full fiscal year ended December 31, 2022 or any other period. The Condensed Consolidated Balance Sheet as of December 31, 2021 included herein was derived from the audited financial statements as of that date, but does not include all disclosures required by U.S. GAAP on an annual reporting basis. Certain prior period amounts have been reclassified to conform to the current period presentation.

The preparation of the Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities reported, disclosure about contingent liabilities, and the reported amounts of revenues and expenses in the financial statements and accompanying notes. Such estimates include, but are not limited to, revenue recognition, leases, valuation of goodwill, intangible assets, other long-lived assets, and other assets and liabilities from acquisitions, recoverability of deferred tax assets, ongoing impairment reviews of goodwill, intangible assets, and other long-lived assets, contingent consideration, and stock-based compensation. The Company bases its estimates on historical experience, known trends, market specific information, or other relevant factors it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates and changes in estimates are recorded in the period in which they become known. Actual results may differ from these estimates.

The functional currency of the Company’s subsidiaries is their respective local currencies. These subsidiary financial statements are translated to U.S. dollars using the period-end exchange rates for assets and liabilities, average exchange rates during the corresponding period for revenues and expenses, and historical rates for equity. The effects of foreign currency translation adjustments are recorded in accumulated other comprehensive income (loss) within stockholders’ equity on the Condensed Consolidated Balance Sheets.

Foreign currency transaction gains (losses) are included in other non-operating income (expense) on the Condensed Consolidated Statements of Operations. Foreign exchange gains and losses were not material during the three and six months ended June 30, 2022 and 2021.

For the six months ended June 30, 2022, the Company incurred a net loss of $44.2 million and used cash in operations of $25.8 million. As of June 30, 2022, the Company had cash and cash equivalents of $148.0 million and an accumulated deficit of $250.3 million. Based on the Company’s business plan, existing cash and cash equivalents, the Company expects to satisfy its working capital requirements for at least the next 12 months after the date that these Condensed Consolidated Financial Statements are issued.

During 2021 and the six months ended June 30, 2022, the COVID-19 pandemic did not adversely impact the Company, as evidenced by the continued growth in subscription and transaction revenues. The Company's focus remains on investing in its products and supporting its long-term growth, including global expansion. Since the start of the pandemic, the Company has continued to operate despite the disruption to some of its customer's operations. The pandemic has served to increase awareness and urgency around accelerating the digital transformation of accounts receivable through the Company's platform and offerings, which has helped avoid significant business, bookings, or revenue disruptions thus far. Additionally, shifts from in-person buying and

traditional payment methods (such as cash or check) towards e-commerce and digital payments, and the related increase in consumer and B2B demand for safer payment and delivery solutions, have benefited the Company as it has further ingrained its platform in its customers’ critical day-to-day order-to-cash operations. In response to the pandemic, the Company has modified some of its business practices, such as enabling and encouraging its employees to work from anywhere and establishing health and safety protocols in its offices.

In addition, the spread of COVID-19 and its variants has contributed to a global slowdown of economic activity, increased unemployment, supply chain disruptions, higher rates of inflation, higher interest rates, increased volatility in foreign currency exchange rates, and increased volatility in the global capital markets, among other macroeconomic events. The Company is unable to predict the impact the COVID-19 pandemic or other macroeconomic events will have on its future results of operations, liquidity, financial condition, ability to access capital markets, and business practices due to numerous uncertainties, including the duration, severity, and spread of the virus and its variants, actions that may be taken by government authorities, the impact to the Company's employees, customers, and partners, prolonged macroeconomic uncertainty, volatility, and disruption, and various other factors beyond the Company's knowledge or control. The Company continues to monitor these situations and may take further actions as may be required by government authorities or that it determines are in the best interests of its employees, customers, and partners.

Based on the closing share price and the market value of the Company's common stock held by non-affiliates as of June 30, 2021, the Company was deemed to be a large accelerated filer as of December 31, 2021. As a result, on December 31, 2021, the Company no longer qualified as an emerging growth company (“EGC”) under the Jumpstart Our Business Startups Act (“JOBS Act”). The previous EGC status allowed the Company an extended transition period to adopt new or revised accounting pronouncements until such pronouncements were applicable to private companies. The loss of ECG status required the Company to adopt the following new accounting pronouncements retroactively to January 1, 2021 in its 2021 Annual Report on Form 10-K:

As a result, in conformity with U.S. GAAP, the Company has retroactively adjusted its quarterly financial statements and related notes thereto, as of, and for the three and six months ended June 30, 2021 to reflect the adoption of these new accounting standards as follows:

•Within the Condensed Consolidated Statements of Cash Flows, financial statement lines for (1) impairments and reduction in carrying amount of operating lease right-of-use assets and (2) operating lease liabilities were included in the net change in operating activities in accordance with Topic 842.

Except as otherwise noted, the adoption of the accounting pronouncements listed above did not have a material impact on the Company's financial position, results of operations, or the financial statements and related notes included herein.

The financial instruments that potentially subject the Company to concentrations of credit risk are cash, cash equivalents, restricted cash, accounts receivable, and customer funds. The Company maintains its deposits of cash and cash equivalents, restricted cash, and customer funds with high-credit quality financial institutions. The Company’s cash and cash equivalents, restricted cash, and customer funds may exceed federally insured limits.

The Company’s accounts receivable are reported on the Condensed Consolidated Balance Sheets net of allowances for uncollectible accounts. The Company believes that the concentration of credit risk with respect to accounts receivable is limited due to the large number of companies and diverse industries comprising its

customer base. Ongoing credit evaluations are performed, with a focus on new customers or customers with whom the Company has no prior collections history, and collateral is generally not required. The Company maintains reserves for potential losses based on customer specific situations, historical experience, and expectations of forward-looking loss estimates. Such losses, in the aggregate, have not exceeded management’s expectations. As of June 30, 2022 and December 31, 2021, the allowances for uncollectible accounts were $0.3 million and $0.4 million, respectively.

For the six months ended June 30, 2022 and 2021, no individual customer accounted for 10% or greater of total revenues. As of June 30, 2022 and December 31, 2021, no individual customer had a balance of 10% or greater of accounts receivable.

The following table summarizes the period ending cash and cash equivalents as presented on the Company's Condensed Consolidated Balance Sheets and the total cash, cash equivalents, and restricted cash as presented on the Condensed Consolidated Statements of Cash Flows (in thousands):

(1)Restricted cash consists of collateral for letters of credit required for leased office space and is included in other assets in the Condensed Consolidated Balance Sheets. The short-term or long-term classification is determined in accordance with the expiration of the underlying letters of credit.

On January 1, 2022, the Company adopted ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40). The amendments in this ASU simplify the accounting for convertible instruments by eliminating large sections of the existing guidance and eliminating several triggers for derivative accounting, including a requirement to settle certain contracts by delivering registered shares. The adoption of this standard did not have an impact on the Company's financial position or results of operations.

In November 2021, the FASB issued ASU No. 2021-10, Government Assistance (Topic 832), Disclosures by Business Entities about Government Assistance. The amendments in this ASU require entities to annually disclose information about certain government assistance they receive. The rule will be effective for public entities for annual periods beginning after December 15, 2021. The adoption of ASU is currently not expected to have a material impact on the Company’s financial statement disclosures.