November 29, 2010

CUTTING THE TEA PARTY'S PORK:

How to cut the deficit without raising taxes (Martin Feldstein, November 29, 2010, Washington Post)

Because Bowles and Simpson recognize that eliminating all tax expenditures is politically impossible, they also proposed to eliminate or scale back some tax expenditures while cutting tax rates less to achieve the same $80 billion annual deficit reduction. This option will undoubtedly be opposed by some who find it unfair to limit measures from which they benefit while leaving unchanged tax rules that benefit other people.

Here is a practical alternative toward the same end: Congress should cap the total benefit taxpayers can receive from the combined effect of different tax expenditures. That cap could be set as a percentage of an individual's adjusted gross income and perhaps subject to an absolute dollar amount.

To be clear, the cap would not apply to the amount of any deduction but would limit the total tax savings that result from such deductions. Someone with a 25 percent marginal tax rate who pays annual mortgage interest of $4,000 would still deduct that $4,000. The cap would apply to the $1,000 tax saving that individual could expect on mortgage interest, not to his or her deduction.

The idea is not to single out a particular tax expenditure. Because the cap would reduce the revenue cost of all tax expenditures without eliminating or reducing specific ones, it would not unfairly burden taxpayers who benefit from one particular type of tax measure.

The budget gain would be substantial. My colleague Daniel Feenberg of the National Bureau of Economic Research and I have estimated that capping an individual's benefit from tax expenditures at 2 percent of adjusted gross income would reduce the federal deficit in 2011 by $262 billion, or about 1.7 percent of gross domestic product. An additional cap on these benefits in absolute dollar terms would produce a larger deficit reduction.

Posted by Orrin Judd at November 29, 2010 5:37 PM
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