Press Release

ACI Worldwide Inc to File Its Form 10K the week of January 28 2008

January 22, 2008
ACI Worldwide Inc to File Its Form 10K the week of January 28 2008

With the completion of this review, the Company intends to file its Annual Report on Form 10-K for the fiscal year ended September 30, 2007 during the week of January 28, 2008.

About ACI Worldwide, Inc. 

The Company’s software facilitates electronic payments by providing consumers and companies access to their money.  Its products are used to process transactions involving credit cards, debit cards, mobile commerce, smart cards, checks, high-value money transfers, bulk payment clearing and settlement, and enterprise e-infrastructure.  The Company’s solutions are used in more than 2,050 product systems in 84 countries on six continents.  Visit ACI Worldwide, Inc. on the Internet at www.aciworldwide.com

Forward-Looking Statements 
This press release contains forward-looking statements based on current expectations that involve a number of risks and uncertainties.  Generally, forward-looking statements do not relate strictly to historical or current facts and may include words or phrases such as the Company “believes,” “will,” “expects,” “looks forward to,” and words and phrases of similar impact.  The forward-looking statements are made pursuant to safe harbor provisions of the Private Securities Litigation Reform Act of 1995.  Forward-looking statements in this press release include, but are not limited to, statements regarding the Company’s expected timing for the filing of its Annual Report on Form 10-K for the year ended September 30, 2007. 

Any or all of the forward-looking statements may turn out to be wrong.  They can be affected by the judgments and estimates underlying such assumptions or by known or unknown risks and uncertainties.  These factors include, without limitation, (i) the risk that additional information may arise from the preparation of the Company’s financial statements, including the completion of the Company’s FIN 48 review, or other subsequent events that would require the Company to make adjustments to its financials statements and thereby impact the Company’s timing with respect to filing its annual report and (ii) the risk that significant judgment is required in determining the Company’s worldwide income tax liabilities and other tax liabilities and that governing tax authorities may have different interpretations of applicable law and, as a result, may attempt to challenge the Company’s tax positions set out in its financial statements which, if successful, could adversely affect the Company’s financial condition and/or results of operations. Consequently, no forward-looking statement can be guaranteed.  In addition, the Company disclaims any obligation to update any forward-looking statements after the date of this release.  

All of the foregoing forward-looking statements are expressly qualified by the risk factors discussed in the Company’s filings with the Securities and Exchange Commission.  For a detailed discussion of these risk factors, parties that are relying on the forward-looking statements should review the Company's filings with the Securities and Exchange Commission, including the Company's Form 10-K filed on May 11, 2007, the Company’s Form 10-Q for the fiscal quarter ended December 31, 2006 filed on June 29, 2007, the Company’s Form 10-Q for the fiscal quarter ended March 31, 2007 filed on August 10, 2007, and the Company’s Form 10-Q filed on September 25, 2007 respectively and specifically the sections entitled “Factors That May Affect the Company's Future Results or the Market Price of the Company's Common Stock.”

Investor Contacts

John Kraft, Head of Strategy & Finance
Email: john.kraft@aciworldwide.com

Global Headquarters:
ACI Worldwide
2811 Ponce de Leon Blvd, PH1
Coral Gables, FL 33134