1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES As used herein, the terms Equifax, the Company, we, our and us refer to Equifax Inc., a Georgia corporation, and its consolidated subsidiaries as a combined entity, except where it is clear that the terms mean only Equifax Inc. Nature of Operations. We collect, organize and manage various types of financial, demographic, employment and marketing information. Our products and services enable businesses to make credit and service decisions, manage their portfolio risk, automate or outsource certain payroll- related, tax and human resources business processes, and develop marketing strategies concerning consumers and commercial enterprises. We serve customers across a wide range of industries, including the financial services, mortgage, retail, telecommunications, utilities, automotive, brokerage, healthcare and insurance industries, as well as government agencies. We also enable consumers to manage and protect their financial health through a portfolio of products offered directly to consumers. As of December 31, 2020, we operated in the following countries: Argentina, Australia, Canada, Chile, Costa Rica, Ecuador, El Salvador, Honduras, India, Ireland, Mexico, New Zealand, Paraguay, Peru, Portugal, Spain, the United Kingdom, or U.K., Uruguay, and the United States of America, or U.S. We also offer Equifax branded credit services in Russia through a joint venture, have investments in consumer and/or commercial credit information companies through joint ventures in Cambodia, Malaysia, Singapore and the United Arab Emirates and have an investment in a consumer and commercial credit information company in Brazil. We develop, maintain and enhance secured proprietary information databases through the compilation of consumer specific data, including credit, income, employment, asset, liquidity, net worth and spending activity, and business data, including credit and business demographics, that we obtain from a variety of sources, such as credit granting institutions, and income and tax information primarily from large to mid-sized companies in the U.S. We process this information utilizing our proprietary information management systems. We also provide information, technology and services to support debt collections and recovery management. Basis of Consolidation. Our Consolidated Financial Statements and the accompanying notes, which are prepared in accordance with U.S. generally accepted accounting principles, or GAAP, include Equifax and all its subsidiaries. We consolidate all majority-owned and controlled subsidiaries as well as variable interest entities in which we are the primary beneficiary. Other parties’ interests in consolidated entities are reported as noncontrolling interests. We use the equity method of accounting for investments in which we are able to exercise significant influence. Non- consolidated equity investments are recorded at fair value when readily determinable or at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions when the fair value of the investment is not readily determinable. All intercompany transactions and balances are eliminated. Our Consolidated Financial Statements reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the periods presented therein. Segments. We manage our business and report our financial results through the following four reportable segments, which are our operating segments: USIS is our largest reportable segment, with 36% of total operating revenue for 2020. Our most significant foreign operations are located in Australia, the U.K. and Canada. Use of Estimates. The preparation of our Consolidated Financial Statements requires us to make estimates and assumptions in accordance with GAAP. Accordingly, we make these estimates and assumptions after exercising judgment. We believe that the estimates and assumptions inherent in our Consolidated Financial Statements are reasonable, based upon information available to us at the time they are made including the consideration of events that have occurred up until the point these Consolidated Financial Statements have been filed. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses and disclosure of contingent assets and liabilities at the date of the financial statements, • U.S. Information Solutions, or USIS • Workforce Solutions • International • Global Consumer Solutions 69 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS