Summary of Significant Accounting Policies

Nature of Operations. Robert Half International Inc. (the “Company”) provides specialized staffing and risk consulting services through such divisions as Accountemps^®, Robert Half^® Finance & Accounting, OfficeTeam^®, Robert Half^® Technology, Robert Half^® Management Resources, Robert Half^® Legal, The Creative Group^®, and Protiviti^®. The Company, through its Accountemps, Robert Half Finance & Accounting, and Robert Half Management Resources divisions, is a specialized provider of temporary, full-time, and senior-level project professionals in the fields of accounting and finance. OfficeTeam specializes in highly skilled temporary administrative support professionals. Robert Half Technology provides project and full-time technology professionals. Robert Half Legal provides temporary, project, and full-time staffing of lawyers, paralegals and legal support personnel. The Creative Group provides interactive, design, marketing, advertising and public relations professionals. Protiviti is a global consulting firm that helps companies solve problems in finance, technology, operations, data, analytics, governance, risk and internal audit, and is a wholly-owned subsidiary of the Company. Revenues are predominantly derived from specialized staffing services. The Company operates in North America, South America, Europe, Asia and Australia. The Company is a Delaware corporation.

Basis of Presentation. The unaudited Condensed Consolidated Financial Statements (“Financial Statements”) of the Company are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and the rules of the Securities and Exchange Commission (“SEC”). The comparative year-end condensed consolidated statement of financial position data presented was derived from audited financial statements. In the opinion of management, all adjustments (consisting of only normal recurring adjustments) necessary for a fair statement of the financial position and results of operations for the periods presented have been included. These Financial Statements should be read in conjunction with the audited Consolidated Financial Statements of the Company for the year ended December 31, 2017, included in its Annual Report on Form 10-K. The results of operations for any interim period are not necessarily indicative of, nor comparable to, the results of operations for a full year.

Principles of Consolidation. The Financial Statements include the accounts of the Company and its subsidiaries, all of which are wholly-owned. All intercompany balances have been eliminated.

Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. As of June 30, 2018, such estimates included allowances for uncollectible accounts receivable, workers’ compensation losses, and income and other taxes. Management estimates are also utilized in the Company’s goodwill impairment assessment and in the valuation of stock grants subject to market conditions. Actual results and outcomes may differ from management's estimates and assumptions.

Revenue Recognition. Revenues from contracts with customers are generated in three segments: temporary and consultant staffing, permanent placement staffing, and risk consulting and internal audit services. Revenues are recognized when promised goods or services are delivered to customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. See Note C for further discussion of revenue recognition and disaggregation of revenues.

Advertising Costs. The Company expenses all advertising costs as incurred. Advertising costs for the three and six months ended June 30, 2018 and 2017, are reflected in the following table (in thousands):



	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Advertising costs	$	14,416	$	12,225	$	27,497	$	23,696