-- CheckFree secures SWIFT recognition for corporate actions, financial
                  messaging and reconciliation solutions --

ATLANTA and LONDON, Sept. 6 /PRNewswire-FirstCall/ -- SIBOS Booth C280 -- CheckFree Software, a division of CheckFree Corporation (Nasdaq: CKFR), today announced it has been awarded the SWIFTReady corporate actions label for CheckFree eVent(TM), the company's best-in-class automated workflow solution for corporate actions. The achievement of this designation further reflects CheckFree's commitment to technology leadership in the corporate actions space. SWIFT is an industry-owned co-operative supplying secure, standardised messaging services and interface software to over 7,800 financial institutions in more than 200 countries.

CheckFree's transaction process management solution, CheckFree TradeFlow(TM), and its operational risk management solution, Accurate NXG, achieved SWIFTReady Gold 2005 accreditation for Financial EAI and cash and securities reconciliation respectively, earlier this year, for the sixth straight year in both categories. SWIFTReady Gold is the highest level of compliance awarded by SWIFT. Each technology solution is judged on its ability to provide automation in a SWIFT environment.

CheckFree's complete securities processing platform, which combines CheckFree TradeFlow, CheckFree eVent and the company's reconciliation solutions, is based on SWIFTReady Gold-accredited technologies. CheckFree Software enables securities firms to process trades received from any trade order and portfolio management system through the entire post-trade process to settlement of the transactions. The reconciliation of securities settled and positions held, together with the management of pre- and post-settlement exceptions, and processing of corporate actions are also fully supported.

CheckFree eVent enables customers to quickly achieve automated corporate action processing, with workflows and exception management pre-configured to meet business best-practice scenarios. The platform can be easily configured and supports industry standards as well as proprietary data formats. Built on CheckFree's financial messaging technology, eVent leverages an integrated architecture to provide truly global straight-through processing capabilities.

Joel Ludvigsen, director, Partner Solutions at SWIFT said, "We appreciate the enthusiasm, willingness and ability shown by CheckFree to quickly deliver SWIFTReady advanced technology to our clients, enabling them to gain value from the evolution of the ISO 15022 standard in the corporate actions space."

"The stringent SWIFT testing process validates CheckFree TradeFlow and Accurate NXG's flexibility and support for SWIFT standards," said Randy McCoy, executive vice president and general manager of CheckFree Software. "The SWIFT accreditations are important because they reinforce the strength of our technology and its adaptability to meet ongoing changes in the marketplace. Furthermore, with SWIFTReady Gold accreditation for financial messaging and cash and securities reconciliation, our customers can be confident that they have selected best-in-class technology that supports a growing number of industry standards."

"Today, CheckFree's corporate action, transaction process management and operational risk management solutions are delivering comprehensive transaction management capabilities to the global SWIFT community," added Olivier Roucloux, industry analyst, Partner Solutions, SWIFT. "CheckFree's SWIFT accredited product portfolio confirms the company's status as a financial software market leader."

About CheckFree (www.checkfreecorp.com)

Founded in 1981, CheckFree Corporation (Nasdaq: CKFR) provides financial electronic commerce services and products to organizations around the world. CheckFree Electronic Commerce solutions enable thousands of financial services providers and billers to offer their customers the convenience of receiving and paying their household bills online or in person through retail outlets. CheckFree Investment Services provides a broad range of investment management solutions and outsourced services to thousands of financial services organizations, which manage more than $1 trillion in assets. CheckFree Software develops, markets and supports software applications that are used by financial institutions to process more than two thirds of the 11 billion Automated Clearing House transactions in the United States. The division also provides global trade processing, reconciliation, financial messaging, compliance and electronic billing and statement software to hundreds of organizations across the globe.

Certain of CheckFree's statements in this press release are not purely historical, and as such are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These include statements regarding management's intentions, plans, beliefs, expectations or projections of the future. Forward-looking statements involve risks and uncertainties, including without limitation, the various risks inherent in CheckFree's business, and other risks and uncertainties detailed from time to time in CheckFree's periodic reports filed with the Securities and Exchange Commission, including CheckFree's Annual Report on Form 10-K for the year ended June 30, 2005 (filed September 2, 2005). One or more of these factors have affected, and could in the future affect CheckFree's business and financial results in future periods, and could cause actual results to differ materially from plans and projections. There can be no assurance that the forward-looking statements made in this press release will prove to be accurate, and issuance of such forward-looking statements should not be regarded as a representation by CheckFree, or any other person, that the objectives and plans of CheckFree will be achieved. All forward-looking statements made in this press release are based on information presently available to management, and CheckFree assumes no obligation to update any forward-looking statements.

SOURCE  CheckFree Software
    -0-                             09/06/2005
    /CONTACT:  Media relations, Judy DeRango Wicks, +1-678-375-1595, or
jdwicks@checkfree.com , or Investor Relations, Tina Moore, +1-678-375-1278, or
tmoore@checkfree.com, both of CheckFree/
    /Web site:  http://www.checkfreecorp.com/
    (CKFR)

CO:  CheckFree Software; CheckFree Corporation
ST:  Georgia, England
IN:  CPR ECM ITE MLM
SU:

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5408 09/06/2005 14:00 EDT http://www.prnewswire.com