January 20, 2006

Also Completes Repatriation of Accumulated Foreign Earnings Under the American Jobs Creation Act

Minneapolis, January 20, 2006 - Ceridian Corporation (NYSE:CEN) announced today that it has completed its fuel price risk management program for 2006. On January 17, 2006, the Company purchased instruments to raise its coverage to 80% of its anticipated diesel fuel price related earnings exposure for the year at an average price of approximately $2.55 per gallon. The instruments are designed to enhance the visibility and predictability of the Company's future earnings. Under a similar program in 2005, the Company locked in a price of approximately $1.92 per gallon on 100% of the anticipated diesel fuel price related earnings exposure for that year.

Ceridian also today reported that it had completed the previously contemplated repatriation of accumulated foreign earnings under the American Jobs Creation Act of 2004 (AJCA), as had been discussed by the Company in its Form 10-Q filing for the third quarter of 2005. Accordingly, in December 2005 the Company's Canadian subsidiary declared and paid a gross dividend (before withholding taxes and other statutory holdbacks) of $130 million. The repatriation was funded primarily through on-hand cash balances and, to a lesser extent, bank borrowings by the Company's Canadian subsidiary. The funds received will be deployed under a qualified investment plan as defined by the AJCA.

Ceridian Corporation (www.ceridian.com) is an information services company serving businesses and employees in the United States, Canada and Europe. Ceridian is one of the top human resources outsourcing companies in each of its markets, and offers a broad range of human resource services, including payroll, benefits administration, tax compliance, HR information systems and employee advisory programs. Through its Comdata subsidiary, Ceridian is a major payment processor and issuer of credit cards, debit cards and stored value cards, primarily for the trucking and retail industries in the United States.

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The statements regarding Ceridian Corporation contained in this release that are not historical in nature, particularly those that utilize terminology such as "may," "will," "should," "likely," "expects," "anticipates," "estimates," "believes" or "plans," or comparable terminology, are forward-looking statements based on current expectations and assumptions, and entail various risks and uncertainties that could cause actual results to differ materially from those expressed in such forward-looking statements. Important factors known to Ceridian that could cause such material differences are identified and discussed from time to time in Ceridian's filings with the Securities and Exchange Commission, including matters arising from the SEC investigation, the prior restatements of our financial statements, the investigation conducted by the Audit Committee, the pending shareholder litigation, the failure to timely comply with Section 404 of the Sarbanes-Oxley Act of 2002, volatility associated with Comdata's fuel price derivative contracts and those factors which are discussed in Ceridian's Annual Report on Form 10-K, for the year ended December 31, 2004, which factors are also incorporated herein by reference.

Ceridian undertakes no obligation to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise. You are advised, however, to consult any future disclosure Ceridian makes on related subjects in future reports to the SEC.