NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Capping Individual Tax Expenditure Benefits

Martin Feldstein, Daniel Feenberg, Maya MacGuineas

NBER Working Paper No. 16921
Issued in April 2011
NBER Program(s):   PE

This paper analyzes a new way of reducing the major individual tax expenditures: capping the total amount that tax expenditures as a whole can reduce each individual's tax burden. More specifically, we examine the effect of limiting the total value of the tax reduction resulting from tax expenditures to two percent of the individual's adjusted gross income. Each individual can benefit from the full range of tax expenditures but can receive tax reduction only up to 2 percent of his AGI.

Simulations using the NBER TAXSIM model project that a 2 percent cap would raise $278 billion in 2011. The paper analyzes the revenue increases by AGI class. The 2 percent cap would also cause substantial simplification by inducing more than 35 million taxpayers to shift from itemizing their deductions to using the standard deduction. For any taxpayer for whom the 2 percent cap is binding, a cap would reduce the volume of wasteful spending and the associated deadweight loss. Even for those taxpayers for whom the cap is not binding but who are induced by the cap to shift from itemizing to using the standard deduction, the deadweight loss associated with deductible expenditures would be completely eliminated

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Document Object Identifier (DOI): 10.3386/w16921

Published: “Capping Individual Tax Expenditure Benefits”, (with Dan Feenberg and Maya MacGuinneas) in Tax Notes, May 2, 2011, p 505-509. NBER Working Paper 16921, April 2011.

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