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Another Way To Curb Deficits

Rein in the spending hidden in the tax rules.

May 30, 2011, Vol. 16, No. 35 • By MARTIN FELDSTEIN
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President Obama is increasing government spending even faster than the budget numbers imply. That’s because some of his increased spending is disguised as cuts in taxes. 

Uncle Sam

Thomas Fluharty

When the government gives a tax credit to homeowners who buy solar energy panels, it’s just like giving them a cash subsidy to buy those panels. But it’s recorded as a reduction in taxes rather than as an increase in outlays. 

Similarly, when the president calls for an increase in the child care credit, that’s also treated as a tax cut rather than the rise in spending that it actually is.

According to calculations of the Treasury Department that are hidden deep in the government’s annual budget, there are hundreds of billions of dollars of spending every year that are recorded as tax reductions. The biggest of these “tax expenditures,” as they are called, is the exclusion of employer health insurance premiums from the taxable income of employees. That exclusion resulted in a tax reduction of $160 billion in 2010 and is projected to be $1.4 trillion between 2010 and 2016. That’s a $1.4 trillion subsidy to health insurance that is disguised as a tax reduction. 

Limiting total tax expenditures could produce enough revenue to achieve very substantial cuts in future budget deficits while also lowering personal tax rates. Indeed, if tax expenditures are not reduced, Congress will eventually be forced to raise tax rates or to introduce new taxes. That’s because there is no way to achieve the needed reductions in future deficits just by cutting traditional government outlays, even if there are further cuts in defense spending. And slowing the growth of Social Security and Medicare is needed just to avoid an explosion of future spending on those programs. 

Limiting tax expenditures should have bipartisan appeal. Republicans should welcome limits on tax expenditures as a way to cut hidden government spending. Democrats should accept it as a way to raise the revenue that they insist must be part of any deficit reduction plan. And as I will explain below, it is also a natural way to achieve an automatic “failsafe” mechanism to make sure that deficits decline as promised.

Although limiting the use of tax expenditures would produce additional tax revenue, it is very different from other possible revenue increases. It doesn’t raise marginal tax rates, doesn’t discourage work or entrepreneurship, and doesn’t tax saving and risk taking. It is really a reduction in government spending, not a tax increase. And deep enough cuts in tax expenditures would actually allow reductions in personal tax rates as well as in budget deficits.

I am surprised that some conservatives who favor cutting government nondefense spending oppose limiting tax expenditures because they regard the resulting increase in tax revenue as a tax increase. That fails to distinguish between the accounting effect of cutting tax expenditures and the economic effect. Although government accounting rules treat the end of a tax credit or the limit of a tax deduction as a revenue increase, the economic effect is the same as a cut in spending. Anyone who favors less government spending should also favor cutting tax expenditures.

At a personal level, reductions in tax expenditures would be unpopular with those who see their own benefits reduced. That’s true of any form of spending cut, whether through the tax code or the outlay side of the budget. But voters who recognize the seriousness of the deficit situation may nevertheless support a limit to tax expenditures if they believe that all taxpayers are being asked to accept a sacrifice. 

That’s why I think that putting a cap on the total value of tax reductions that each individual can achieve through tax expenditures is better than those plans that would limit only a few of the tax deductions. More specifically, I favor limiting the tax reduction that individuals can achieve through itemized deductions and the exclusion of employer health insurance payments to 2 percent of each taxpayer’s adjusted gross income. Such a cap would allow each taxpayer to benefit from all of the current tax rules but would limit the total resulting tax reduction to no more than 2 percent of that taxpayer’s total income. 

Note that the limit applies to the resulting tax reductions and not to the deductions themselves. A taxpayer with a 15 percent marginal tax rate who pays mortgage interest of $3,000 a year would have to count 15 percent of that $3,000, or $450, toward his allowable cap.

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