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Repealing the Personal Exemption

Alex Brill  I  September 20, 2017  1 Tax Brief Series


1 Current Policy
Under current law, a taxpayer can claim a personal exemption for themself, his or her spouse, and
each qualified dependent. The personal exemption amount for 2017 will be $4,050. The actual
benefit depends on the taxpayer's marginal tax rate and gross income. Taxpayers can also claim a
standard deduction as an alternative to itemizing deductions. In 2017, the standard deduction will
be $6,350 for single filers, $9,350 for head-of-household filers, and $12,700 for married couples
filing jointly.

2 Reform Options
Using the open-source Tax-Calculator, I present the results of two modifications to current law:
(1) repeal all itemized deductions (IDs) except the mortgage interest deduction and the charitable
deduction while doubling standard deduction (SD), or (2) the changes in (1) plus repeal of the
personal exemption (PE). These reforms are implemented in each iteration of the model.


     Policy      Taxpayers       Itemizers     Taxpayers     Taxpayers       10-Year
                  Receiving   (millions)  Facing Lower  Paying Zero  Revenue
                  Tax Cut                     Marginal Tax     or Less       Change,
                  (millions)                     Rate        Income Tax      Dynamic
                                               (millions)  (millions)  (billions)

  Current Law        0.0           44.6           0.0           70.8           $0.0

  Repeal ID &       86.1           10.1          48.6           82.2           $6.4
  Double SD
  Repeal ID,        58.2           8.8           27.9           73.3         $1,580.3
  Double SD, &
  Repeal PE

3   Comments
    The budgetary difference between those two reform options - whether or not the repeal of
     the personal exemption is included - is $1.57 trillion over 10 years.

    Under current law, 111.9 million taxpayers are expected to claim the standard deduction, and
     44.6 million are expected to itemize their deductions in 2017.

    When most itemized deductions are repealed, the standard deduction is doubled, and the
     personal exemption is kept in place, the number of itemizers decreases from 44.6 million to
     10.1 million, and 48.6 million taxpayers face a lower marginal rate.

    If the personal exemption is also eliminated, 27.9 million fewer taxpayers receive a tax cut
     and 20.7 million fewer will face a lower marginal rate.

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