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GAO-02-234R 1 (2002-05-09)

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      Accountability * Integrity * Reliability
United States General Accounting Office
Washington, DC 20548



         May 9, 2002

         The Honorable Charles 0. Rossotti
         Commissioner of Internal Revenue

         Subject: IRS Guidance on Economic Analyses in Investment Business Cases

         Dear Mr. Rossotti:

         Because IRS plans to spend $2.9 billion over the next 6 years to modernize its
         information systems, we have reviewed, at our own initiative, the latest draft of the
         Investment Decision Management Business Case Procedure. That document
         contains guidance for the Integrated Project Teams that prepare business cases to
         justify information technology (IT) investments. This letter presents our
         observations on certain aspects of the guidance where modifications or additions
         would help to ensure that the economic analyses contained in IRS business cases are
         consistent with commonly accepted principles.

         The observations in this letter are based on our review of the draft business case
         procedure, as it stood on November 1, 2001; relevant guidance issued by the Office of
         Management and Budget (OMB); relevant economic literature, and discussions with
         IRS officials from the Office of Economic Analysis under the Chief Financial Officer
         and from the Office of Financial Policy, Planning, and Programs under the Chief
         Information Officer. Our review was limited to the sections of the guidance that
         pertain to fundamental economic analysis. Some of our observations have particular
         significance for IRS, given its specific mission; the significance of these observations
         for other government agencies will depend on their specific missions. We did not
         evaluate individual business cases prepared under this guidance; therefore, we draw
         no conclusions with respect to any actual investment decisions. We did our work
         from December 2000 through November 2001 in accordance with generally accepted
         government auditing standards.

         Results in Brief

         IRS' draft guidance relating to the preparation of business case documents represents
         an important step toward ensuring that IRS management has the most relevant
         available information on which to base its critical IT investment decisions. However,
         some aspects of IRS' guidance are inconsistent with commonly held principles of
         public sector cost-benefit analysis. Most important, the guidance does not require the
         computation of a comprehensive social net present value (NPV), which is the


GAO-02-234R IRS Guidance on Economic Analyses

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