How the New Tax Act Affects the Alternative Minimum Tax

By :: January 18th, 2013

In the alphabet soup of Washington, ATRA fixed the AMT, sort of. In English, the newly enacted American Taxpayer Relief Act of 2012 will permanently protect millions of taxpayers from having to pay the alternative minimum tax without Congress having to approve a temporary patch every year or so. It even knocks a few hundred thousand people off the AMT this year. But it still doesn’t really fix the dreaded tax.

Since the first Bush tax cuts in 2001, Congress has protected millions of taxpayers from the AMT with one- or two-year patches. Each patch boosted the amount of income exempt from the tax, saving millions of households from having to pay the levy. The 2011 patch, for example, left just 4.3 million taxpayers owing AMT, down from 29 million who otherwise would have paid the additional tax. Congress never approved a permanent fix because it deemed the revenue loss too high.

With ATRA, Congress bit the fiscal bullet, which the Joint Committee on Taxation pegged at $1.8 trillion over the next decade. It set a higher permanent exemption for 2012 and indexed that and other AMT parameters for inflation. New estimates from TPC show what those changes—in combination with other ATRA provisions—will mean.

  • More than 30 million taxpayers who would have owed AMT for 2012 won’t be dinged by the alternative levy. The higher exemption will save them and the 4 million who will still pay AMT more than $85 billion.
  • The combination of a larger AMT exemption and higher thresholds for the exemption phaseout and top AMT tax bracket will further reduce the number of taxpayers owing AMT to just 3.4 million in 2013. Without ATRA, nearly 27 million more people would owe AMT this year.
  • ATRA’s restoration of the 39.6 percent bracket and the return of the limitation on itemized deductions (aka Pease) and the personal exemption phaseout (PEP) will raise regular taxes enough to push some high-income taxpayers off the AMT. Of course, not owing AMT is small consolation for those folks, who I’m sure would be happy to pay the lower AMT bill.

One curiosity that won’t please high-income taxpayers: the new Obamacare taxes on investment income don’t count in determining whether you owe AMT. Although the 3.8 percent tax on investment income above unindexed thresholds—$200,000 for single filers and $250,000 for couples—is part of your income tax liability, you leave it out when you calculate whether you owe AMT. Including the new tax when you compare your regular tax liability against potential AMT would protect many high-income taxpayers from having to pay the alternative tax.

The permanent and indexed patch eliminates the need for Congress to revisit the issue every year or so. It also prevents repeated disruption of the tax-filing season. But it’s not a truly permanent fix—the AMT will still hit three or four million often unsuspecting taxpayers each year and will hit more people over time because indexing AMT parameters doesn’t protect taxpayers as their real income grows. TPC estimates that the number of AMT taxpayers will jump 35 percent by 2018.

The right thing to do is reform the income tax so that we don’t need an AMT to make sure that everyone pays an appropriate amount of tax. Given today’s paralyzed political environment, however, don’t hold your breath waiting for that to happen.

10Comments

  1. Ralph H  ::  12:49 am on January 19th, 2013:

    Probably the least contriversial and most usuful part of the act. I think they even did the right thinh!

    For my education could you publish a chart focusing on the income range where the AMT is valid showing (by income group) the % paying) and the effective average tax rise.

  2. AMTbuff  ::  9:14 pm on January 20th, 2013:

    The most significant effect of this change is its elimination of the annual charade of complaints that ongoing AMT relief must be “paid for”, as if reversion to 1993 AMT exemptions were not a pure fantasy.

    Making all the rates permanent ends the revenue baseline game, with one party wanting to use the current law fantasy as a starting point and the other party wanting to use current rates as the baseline. Now both baselines are the same, so the parties will have to discuss taxes from the same starting point. I wonder whether they can stand it after so many years of talking past each other.

  3. Tax Roundup, 1/21/2013: Preparer regs struck down. What’s next? « Roth & Company, P.C  ::  9:32 am on January 21st, 2013:

    […] Williams,  How the New Tax Act Affects the Alternative Minimum Tax (TaxVox): “One curiosity that won’t please high-income taxpayers: the new Obamacare taxes […]

  4. Michael Bindner  ::  9:46 am on January 21st, 2013:

    Real tax reform where the old tax code with all its deductions is essentially eliminated, with everyone paying an AMT instead (although at lower levels and with some exemptions). The fact that the AMT no longer matters may be a clue to the likelihood that real tax reform will occur in the next four years.

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