Reforming Tax Deductions Would Improve Economic Efficiency and Raise Needed Revenue

June 29, 2011 at 3:46 pm

The Wall Street Journal opposes the idea of reducing the value of itemized deductions for high-income taxpayers to help reduce deficits, but it ignores a basic reality:  these deductions are economically inefficient.  Reforming them would improve efficiency as well as raise much-needed revenue, so that should be front and center in deficit-reduction negotiations.

Itemized Deductions Heavily Weighted Towards the TopThe tax code includes various deductions and exclusions designed to encourage socially valued activities such as owning a home, pursuing education, saving for retirement, or contributing to charity.   Their general design, however, is “upside down.” They provide the largest subsidies to the people with the highest incomes (see graph), even though these are the people least likely to need a financial incentive to do whatever the subsidy is designed to encourage, and even though there’s no evidence that the country is better off if a rich person pursues the activity than if a middle-class person does.

Take the mortgage interest deduction as an example:

  • An affluent investment banker who has a $1 million mortgage and pays $40,000 in mortgage interest each year receives a housing subsidy of $14,000 annually.  The banker pays 65 cents of every dollar of mortgage interest, and taxpayers pick up the remaining 35 cents.
  • By contrast, a typical middle-class family, such as a welder or a nurse making $60,000 and paying $10,000 a year in mortgage interest on a more modest home, receives a housing subsidy worth $1,500 annually.  Here, the family pays 85 cents of every dollar of mortgage interest and taxpayers pick up just 15 cents.

It’s both inefficient and inequitable for taxpayers to pay 15 percent of the middle-class family’s mortgage interest but one-third of the investment banker’s.

Both the bipartisan Bowles-Simpson commission and the bipartisan Rivlin-Domenici commission recognized this glaring design flaw and advanced reform proposals that improve efficiency and raise much-needed revenue.  So has the President.

Budget negotiators would be well served to put these proposals in the middle of the negotiating table.

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More About Chuck Marr

Chuck Marr

Chuck Marr is the Director of Federal Tax Policy at the Center on Budget and Policy Priorities.

Full bio | Blog Archive | Research archive at CBPP.org

2 Comments Add Yours ↓

Comments are listed in reverse chronological order.

  1. pat davis #
    1

    do millionaires really have mortgages? this i sone small exemption the middle class can use.

    how about this instead. feds give banks the interest directly and the homeowner has less to pay monthly and more to spend inth eeconomy?

  2. Steven Woolf #
    2

    To further the comment, doesn’t the investment banker pay 35 cents on his/her next dollar of income while the welder/nurse pays 15 cents? Is this upside down?



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