Compliance Analysis This section contains a wide variety of papers related to taxpayer compliance, including: Analyses using National Research Program (NRP) data Analysis of noncompliance other than the tax gap IRS Reports to Congress All files on this page are available in Adobe® PDF format, which requires the free Adobe Acrobat® Reader to view and print the file. Using NRP Data The IRS National Research Program conducts a variety of studies (e.g., audits of a random sample of tax returns) to gather data on voluntary compliance. The papers below describe or use the NRP data for purposes other than estimating the tax gap. Title Author Publication Date Written For Taxpayer Compliance and Sources of Error for the Earned Income Tax Credit Claimed on 2006-2008 ReturnsPDF Kara Leibel, IRS, Research, Analysis & Statistics August 2014 Public Release Compliance Estimates for the Earned Income Tax Credit Claimed on 2006–2008 ReturnsPDF IRS, Research, Analysis & Statistics August 2014 Public Release IRS's Comprehensive Approach to Compliance MeasurementPDF Robert E. Brown, IRS, National Research Program, Mark J. Mazur, IRS, Research, Analysis, and Statistics June 2003 2003 National Tax Association Spring Symposium Other Analyses Title Author Publication Date Written For Trends as Changes in Variance: The Case of Tax NoncompliancePDF Kim M. Bloomquist, IRS June 2003 2003 IRS Research Conference Compliance Estimates for Earned Income Tax Credit Claimed on 1999 ReturnsPDF IRS June 2002 2002 IRS Research Conference Compliance Measurement and Workload Selection with Operational Audit DataPDF Brian Erard, B. Erard and Associates June 2002 2002 IRS Research Conference Trends in Book-Tax Income and Balance Sheet DifferencesPDF Lillian Mills and Kaye Newberry, University of Arizona, William B. Trautman, IRS, Large and Mid-Size Business Division June 2002 2002 IRS Research Conference Nonfiler Profiles, Fiscal Year 1993: A Focus on RepeatersPDF Laura R. Rosage, IRS 1996 SOI Bulletin, Summer Issue IRS Report to Congress The IRS generally considers three dimensions of tax compliance: filing, payment, and reporting. In 2003, IRS issued a Report to Congress detailing IRS tax compliance activities for 1996–2002. In Fiscal Year 2002, the National Research Program (NRP) was initiated, envisioned as an ongoing, comprehensive effort to measure taxpayers' voluntary compliance with tax law and develop updated methods for identifying returns likely to be noncompliant.