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 FOURTH QUARTER OF 2007

MENLO PARK, California, January 29, 2008 — Robert Half International Inc. (NYSE symbol: RHI) today reported record revenues and earnings for the fourth quarter ended December 31, 2007.

For the quarter ended December 31, 2007, net income was $78.8 million or $.50 per share, on revenues of $1.22 billion. Net income for the prior year’s fourth quarter was $75.4 million or $.45 per share, on revenues of $1.06 billion.

For the year ended December 31, 2007, net income was $296.2 million or $1.81 per share, on revenues of $4.65 billion. For the year ended December 31, 2006, net income was $283.2 million or $1.65 per share, on revenues of $4.01 billion.

Harold M. Messmer, Jr., chairman and chief executive officer of Robert Half International, said: “The fourth quarter of 2007 saw a continuation of the double-digit, year-over-year revenue growth we have seen for 16 consecutive quarters. International operations reported particularly strong fourth-quarter results.”

Messmer continued, “2007 capped a very successful five-year period for RHI. Companywide revenues increased from $2 billion to $4.6 billion during this time frame, a compound annual growth rate of 20 percent, the vast majority of which was organic growth. Return on equity during this period averaged 22 percent per year, growing to 29 percent in 2007.”

Robert Half International management will conduct a conference call today at 5 p.m. EST following the release. The dial-in number is 800-862-9098 (+1-785-424-1051 outside the United States) and the passcode is “Robert Half International.” A taped recording of this call will be available for replay beginning at approximately 8 p.m. EST today and ending at 8 p.m. EST on February 5. The dial-in number for the replay is 800-283-4641 (+1-402-220-0851 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., the world’s first and largest specialized staffing firm, is a recognized leader in professional consulting and staffing 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. The company has staffing and consulting operations in more than 400 locations worldwide.

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 there is the possibility of 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 December 31,						Year Ended December 31,
	2007			2006			2007			2006
	(Unaudited)						(Unaudited)
Net service revenues	$	1,220,068		$	1,060,234		$	4,645,666		$	4,013,546
Direct costs of services		696,447			609,184			2,667,838			2,319,293
Gross margin		523,621			451,050			1,977,828			1,694,253
Selling, general and administrative expenses		393,911			331,565			1,497,957			1,243,952
Amortization of intangible assets		754			246			2,594			851
Interest income		(2,912	)		(4,252	)		(13,127	)		(16,752	)
Income before income taxes		131,868			123,491			490,404			466,202
Provision for income taxes		53,052			48,118			194,192			183,024
Net income	$	78,816		$	75,373		$	296,212		$	283,178
Diluted net income per share	$	.50		$	.45		$	1.81		$	1.65
Shares:
Basic		156,068			163,695			159,767			166,003
Diluted		158,459			168,846			163,479			171,712

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ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	Quarter Ended December 31,				Year Ended December 31,
	2007		2006		2007		2006
	(Unaudited)				(Unaudited)
REVENUES:
Accountemps	$	453,054	$	389,265	$	1,744,820	$	1,485,105
OfficeTeam		222,212		201,410		860,744		776,425
Robert Half Technology		110,841		94,409		425,086		358,480
Robert Half Management Resources		165,276		136,294		618,624		513,876
Robert Half Finance & Accounting		117,590		86,751		444,090		336,250
Protiviti		151,095		152,105		552,302		543,410
Total	$	1,220,068	$	1,060,234	$	4,645,666	$	4,013,546
GROSS MARGIN:
Temporary and consultant staffing	$	357,423	$	305,325	$	1,359,075	$	1,158,887
Permanent placement staffing		117,576		86,751		444,071		336,250
Risk consulting and internal audit services		48,622		58,974		174,682		199,116
Total	$	523,621	$	451,050	$	1,977,828	$	1,694,253
OPERATING INCOME:
Temporary and consultant staffing	$	98,925	$	82,465	$	372,892	$	314,754
Permanent placement staffing		21,906		16,717		86,109		74,757
Risk consulting and internal audit services		8,879		20,303		20,870		60,790
Total	$	129,710	$	119,485	$	479,871	$	450,301
SELECTED CASH FLOW INFORMATION:
Amortization of intangible assets	$	754	$	246	$	2,594	$	851
Depreciation expense	$	17,762	$	15,264	$	68,847	$	60,234
Capital expenditures	$	20,185	$	16,309	$	83,777	$	80,446
Open market repurchases of common stock (shares)		3,041		819		12,202		7,892

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ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	December 31,
	2007		2006
	(Unaudited)
SELECTED BALANCE SHEET INFORMATION:
Cash and cash equivalents	$	310,000	$	447,479
Accounts receivable, less allowances	$	593,169	$	531,824
Total assets	$	1,450,298	$	1,459,021
Current liabilities	$	447,952	$	402,740
Notes payable and other indebtedness less current portion,	$	3,753	$	3,831
Total stockholders’ equity	$	984,049	$	1,042,671

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