Prior GAO reviews have disclosed numerous modernization management control deficiencies that have contributed to reported cost overruns and schedule delays. The table below illustrates the degree to which costs and completion dates for ongoing projects have grown from their initial estimates. Reasons for such delays include inadequate definition of systems requirements, increases in project scope, and underestimation of project complexity. These impair IRS´s ability to make future systems investment decisions and delay delivery of benefits to taxpayers. GAO has made a series of recommendations focusing on stronger program management—and limiting modernization activities until such management practices were in place.

IRS has made important progress in implementing management controls, establishing infrastructure, delivering certain business applications, and balancing the pace of the program with the agency´s ability to manage it. Nevertheless, IRS needs to further strengthen BSM program management, including fully implementing modernization management controls in such areas as cost and schedule estimating.

The recent BSM assessments identified many weaknesses, consistent with prior GAO findings, that contributed to the cost overruns and schedule delays, and offered recommendations to address them. IRS has responded by identifying 46 discrete issues to be resolved; according to the agency, 27 of these have been completed. Commitment of appropriate resources, top management attention, and continuing oversight by Congress and others are critical to the success of BSM.

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