The IRS seeks to help taxpayers comply with their tax obligations voluntarily and timely. The articles and publications on this page contain research related to taxpayer compliance. Compliance measurement research, also known as the tax gap, examines how much tax is not paid voluntarily and timely. Another set of research looks at the causes of taxpayer compliance. All files on this page are available in Adobe® PDF format, which requires the free Adobe Acrobat® reader to view and print the file. Tax Gap All available Tax Gap Publications and papers Federal Tax Compliance Research: Tax Gap Projections for Tax Years 2020 and 2021 (Publication 5869) PDF Federal Tax Compliance Research: Tax Gap Projections Map for Tax Years 2020 and 2021 (Publication 5870) PDF Prior Reports Federal Tax Compliance Research: Tax Gap Estimates for Tax Years 2014–2016 (Publication 1415, Rev. 9-2022) PDF Tax Gap Executive Summary (Publication 5364, Rev. 9-2022) PDF Tax Gap Map (Publication 5365, Rev. 9-2022) PDF Federal Tax Compliance Research: Tax Gap Estimates for Tax Years 2011–2013 (Publication 1415, Rev. 9-2019) PDF Tax Gap Executive Summary (Publication 5364, Rev. 9-2019) PDF Tax Gap Map (Publication 5365, Rev. 9-2019) PDF Title Author Publication Date Written For Federal Tax Compliance Research: Individual Income Tax Gap Estimates for 1985, 1988, and 1992 PDF IRS, Compliance Research April 1996, revised Publication 1415 Federal Tax Compliance Research: Gross and Net Employment Tax Gap Estimates for 1984-1997 PDF IRS, Research Division October 1993, revised Publication 1415-E Income Tax Compliance Research: Net Tax Gap and Remittance Gap Estimates PDF IRS Research Division April 1990, revised Publication 1415 Compliance Analysis Title Author Publication Date Written For Statistical Analysis of Compliance Using the NRP Data: Detection Controlled Models PDF Jonathan Feinstein, Yale University June 2004 2004 IRS Research Conference Trends as Changes in Variance: The Case of Tax Noncompliance PDF Kim M. Bloomquist, IRS June 2003 2003 IRS Research Conference IRS's Comprehensive Approach to Compliance Measurement PDF Robert E. Brown, IRS, National Research Program Mark J. Mazur, IRS, Research, Analysis, and Statistics June 2003 2003 National Tax Association Spring Symposium Developing an Econometric Model for Measuring Tax Noncompliance Using Operational Audit Data PDF Brian Erard, B. Erard and Associates Chih-Chin Ho, IRS August 2002 2002 American Statistical Association Conference Compliance Estimates for Earned Income Tax Credit Claimed on 1999 Returns PDF IRS June 2002 2002 IRS Research Conference Compliance Measurement and Workload Selection with Operational Audit Data PDF Brian Erard, B. Erard and Associates June 2002 2002 IRS Research Conference Trends in Book-Tax Income and Balance Sheet Differences PDF 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 Repeaters PDF Laura R. Rosage, IRS 1996 SOI Bulletin, Summer Issue Determinants of Taxpayer Compliance Title Author Publication Date Written For Audit Information Dissemination, Taxpayer Communication, and Compliance: An Experimental Approach PDF James Alm, Georgia State University Betty Jackson, University of Colorado at Boulder Michael McKee, University of Tennessee at Knoxville June 2004 2004 IRS Research Conference Criminal Investigation Enforcement Activities and Taxpayer Noncompliance PDF Jeffrey Dubin, California Institute of Technology June 2004 2004 IRS Research Conference Tax Evasion, Income Inequality and Opportunity Costs of Compliance PDF Kim M. Bloomquist, IRS, Office of Research November 2003 2003 National Tax Association Annual Conference Economic and Behavioral Determinants of Tax Compliance: Evidence from the 1997 Arkansas Tax Penalty Amnesty Program PDF Christina M. Ritsema, Hope College Deborah W. Thomas and Gary D. Ferrier, University of Arkansas June 2003 2003 IRS Research Conference The Impact of the IRS on Voluntary Tax Compliance: Preliminary Empirical Results PDF Alan H. Plumley, Technical Advisor, IRS, Office of Research November 2002 2002 National Tax Association Conference The Determinants of Individual Income Tax Compliance: Estimating the Impacts of Tax Policy, Enforcement and IRS Responsiveness PDF Alan H. Plumley, Technical Advisor, IRS, Office of Research November 1996, revised IRS Publication 1916
