Exhibit 99.1

FOR IMMEDIATE RELEASE

Contact:	M. Keith Waddell
	Vice Chairman, President and
	Chief Financial Officer
	(650) 234-6000

ROBERT HALF INTERNATIONAL INC. REPORTS RECORD REVENUES AND EARNINGS FOR THE FIRST QUARTER OF 2005

MENLO PARK, California, April 21, 2005 – Robert Half International Inc. (NYSE symbol: RHI) today reported record revenues and earnings for the first quarter ended March 31, 2005.

For the quarter ended March 31, 2005, net income was $51.6 million or $.29 per share, on revenues of $769.9 million. Net income for the prior year’s first quarter was $15.4 million or $.09 per share, on revenues of $572.3 million.

Harold M. Messmer, Jr., chairman and chief executive officer of Robert Half International Inc., said: “Revenues and earnings for the first quarter reached their highest levels in the company’s history. Revenues increased 35 percent from the prior year and net income per share increased 232 percent. We were particularly pleased with the strong performance of our Accountemps and Robert Half Finance & Accounting divisions.

“Revenues for Protiviti, our internal audit and risk consulting subsidiary, more than doubled versus the year-ago quarter and moderated somewhat from the very robust fourth-quarter levels. We were pleased with Protiviti’s ability to maintain its gross margin during this period,” Messmer said. “Protiviti’s cumulative earnings since inception have now more than funded RHI’s total investment in this business, a significant milestone achieved less than three years after the business was formed in May 2002.

“We estimate that 14 to 17 percent of RHI’s consolidated revenues during the quarter were directly related to Sarbanes-Oxley compliance work. The balance of our revenues reflected organic growth of more than 20 percent on a year-over-year basis. This is our eighth consecutive quarter of sequential revenue and earnings growth,” Messmer said.

Robert Half International management will conduct a conference call today at 5 p.m. EDT to discuss the quarterly financial results. The dial-in number is 800-905-0392 (+1-785-832-1508 outside the United States) and the passcode is “Robert Half.” A taped recording of this call will be available for replay immediately following the call and accessible through 8 p.m. EDT on April 28, 2005. The dial-in number for the replay is 888-225-1540 (+1-402-220-4973 outside the United States). The conference call also will be archived in audio format on the company’s website at www.rhi.com.

Founded in 1948, Robert Half International Inc. (RHI) is the world’s first and largest specialized staffing firm. RHI is a recognized leader in professional staffing and consulting services and is the parent company of Protiviti^® (www.protiviti.com), a leading independent internal audit and risk consulting firm.

The company’s specialized staffing divisions include Accountemps^®, Robert Half^® Finance & Accounting and Robert Half^® Management Resources, for temporary, full-time and project professionals, respectively, in the fields of accounting and finance; OfficeTeam^®, for highly skilled temporary administrative support personnel; Robert Half^® Technology, for information technology professionals; Robert Half^® Legal, for legal personnel; and The Creative Group^®, for advertising, marketing and web design professionals. RHI serves its clients and candidates through more than 330 offices worldwide and through online job search services at its divisional websites, all of which can be accessed at www.rhi.com.

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Certain information contained in this press release may be deemed forward-looking statements regarding events and financial trends that may affect the company’s future operating results or financial positions. These statements may be identified by words such as “estimate”, “forecast”, “project”, “plan”, “intend”, “believe”, “expect”, “anticipate”, or variations or negatives thereof, or by similar or comparable words or phrases. Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the statements.

These risks and uncertainties include, but are not limited to, the following: changes in levels of unemployment and other economic conditions in the United States or foreign countries where the company does business, or in particular regions or industries; reduction in the supply of candidates for temporary employment or the company’s ability to attract candidates; the entry of new competitors into the marketplace or expansion by existing competitors; the ability of the company to maintain existing client relationships and attract new clients in the context of changing economic or competitive conditions; the impact of competitive pressures, including any change in the demand for the company’s services, on the company’s ability to maintain its margins; the possibility of the company incurring liability for its activities, including the activities of its temporary employees, or for events impacting its temporary employees on clients’ premises; the possibility that adverse publicity could impact the company’s ability to attract and retain clients and candidates; the success of the company in attracting, training, and retaining qualified management personnel and other staff employees; whether governments will impose additional regulations or licensing requirements on personnel services businesses in particular or on employer/employee relationships in general; whether there will be ongoing demand for Sarbanes-Oxley or other regulatory compliance services; and litigation relating to prior or current transactions or activities, including litigation that may be disclosed from time to time in the company’s SEC filings.

Additionally, with respect to Protiviti, other risks and uncertainties include the fact that future success will depend on its ability to retain employees and attract clients; there can be no assurance that there will be ongoing demand for Sarbanes-Oxley or other regulatory compliance services; failure to produce projected revenues could adversely affect financial results; and possible involvement in litigation relating to prior or current transactions or activities.

Because long-term contracts are not a significant part of the company’s business, future results cannot be reliably predicted by considering past trends or extrapolating past results. The company undertakes no obligation to update information contained in this release.

A copy of this release is available at www.rhi.com.

ATTACHED: Summary of Operations

Supplemental Financial Information

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ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUMMARY OF OPERATIONS

(in thousands, except per share amounts)

	Quarter Ended March 31,
	2005			2004
	(Unaudited)
Net service revenues	$	769,948		$	572,282
Direct costs of services		456,114			356,255
Gross margin		313,834			216,027
Selling, general and administrative expenses		230,315			191,131
Amortization of intangible assets		74			89
Interest income		(1,832	)		(634	)
Income before income taxes		85,277			25,441
Provision for income taxes		33,684			10,025
Net income	$	51,593		$	15,416
Diluted net income per share	$	.29		$	.09
Shares:
Basic		169,898			169,311
Diluted		176,207			174,771

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ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	Quarter Ended March 31,
	2005		2004
	(Unaudited)
REVENUES:
Accountemps	$	284,972	$	228,149
OfficeTeam		155,941		131,503
Robert Half Technology		67,016		59,314
Robert Half Management Resources		105,043		70,748
Robert Half Finance & Accounting		46,229		28,858
Protiviti		110,747		53,710
Total	$	769,948	$	572,282
GROSS MARGIN:
Temporary and consultant staffing	$	222,454	$	171,164
Permanent placement staffing		46,229		28,858
Risk consulting and internal audit services		45,151		16,005
Total	$	313,834	$	216,027
OPERATING INCOME:
Temporary and consultant staffing	$	52,107	$	18,999
Permanent placement staffing		9,532		2,673
Risk consulting and internal audit services		21,880		3,224
Total	$	83,519	$	24,896
SELECTED CASH FLOW INFORMATION:
Amortization of intangible assets	$	74	$	89
Depreciation expense	$	11,706	$	13,113
Capital expenditures	$	12,651	$	8,601
Open market repurchases of common stock (shares)		1,555		919

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ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	March 31,
	2005		2004
	(Unaudited)
SELECTED BALANCE SHEET INFORMATION:
Cash and cash equivalents	$	430,005	$	279,434
Marketable securities	$	22,580	$	89,035
Accounts receivable, less allowances	$	416,687	$	284,202
Total assets	$	1,246,919	$	1,014,749
Current liabilities	$	324,950	$	217,078
Notes payable and other indebtedness, less current portion	$	2,246	$	2,324
Total stockholders’ equity	$	915,519	$	786,514

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