NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Tax Avoidance and the Deadweight Loss of the Income Tax

Martin Feldstein

NBER Working Paper No. 5055
Issued in March 1995
NBER Program(s):   PE

The traditional method of analyzing the distorting effects of the income tax greatly underestimates its total deadweight loss as well as the incremental deadweight loss of an increase in income tax rates. Deadweight losses are substantially greater than these conventional estimates because the traditional framework ignores the effect of higher income tax rates on tax avoidance through changes in the form of compensation (e.g., employer paid health insurance) and through changes in the patterns of consumption (e.g., owner occupied housing). The deadweight loss due to the increased use of exclusions and deductions is easily calculated. Because the relative prices of leisure, excludable income, and deductible consumption are fixed, all of these can be treated as a single Hicksian composite good. The compensated change in taxable income induced by changes in tax rates therefore provides all of the information that is needed to evaluate the deadweight loss of the income tax. These estimates using TAXSIM calibrated to 1994 imply that the deadweight loss per dollar of revenue of using the income tax rather than a lump sum tax is more than twelve times as large as Harberger's classic estimate. A marginal increase in tax revenue achieved by a proportional rise in all personal income tax rates involves a deadweight loss of nearly two dollars per incremental dollar of revenue. Repealing the 1993 increase in tax rates for high income taxpayers would reduce the deadweight loss of the tax system by $24 billion while actually increasing tax revenue.

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Document Object Identifier (DOI): 10.3386/w5055

Published:

  • Published as "The Income Tax and Charitable Contributions: Part I - Aggregate and Distributional Effects," National Tax Journal, Vol. 28, no. 1 (1975): pp. 81-100.
  • Published as "The Income Tax and Charitable Contributions," with Amy Taylor, Econometrica, Vol. 44, no. 6, (November 1976): pp. 1201-1222
  • The Review of Economics and Statistics, Vol. 81, no. 4, (November 1999), pp. 674-680 citation courtesy of

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