Should People Who Make $250,000 a Year Worry About Obama's Tax Proposals?
by Megan McArdle Nov 20, 2012 11:51 AM EST
There are more wrinkles in the tax code than you think
Kevin Drum and Dave Weigel take off after rich people who don't understand that they only pay marginal tax rates on the extra dollars they earn above taxation thresholds. "This isn't true, of course. Obama is only proposing to raise tax rates on income over $250,000, so if your income goes up to $251,000, you only pay the higher rate on the extra $1,000. The tax bill on your first $250,000 stays exactly the same."
Their analysis is basically sound, except for the fact that it is not quite true. They have forgotten to look at deduction phaseouts, surtaxes, and the AMT, which are not taxes on marginal income.*
No matter what you have heard on the internet, there are in fact a lot of sizeable marginal inflection points for high earners. There are the Pease deduction phaseouts, temporarily abated by the Bush tax cuts but scheduled to go back into effect in 2013, which can eliminate up to 80% of deductions for couples who make more than about $175,000 (the number is indexed for inflation, so it changes every year): your deductions are reduced by 3% of the amount by which your income exceeds the threshhold. The student loan interest deduction phases out at $150,000 ($75,000 for singles). And a lot of tax-free savings opportunities disappear: educational savings accounts and IRAs have income limits, so your ability to use them starts phasing out in the low-six-figure income range. So do various educational and child tax credits. These things obviously aren't a huge deal for people who make $1,000,000 a year but they can be a huge tax hit for couples in the $150,000 to $300,000 range. Come 2013, they will be an even bigger hit.
And we haven't even discussed the AMT, which virtually eliminates deductions for couples who make the mistake of doing things like buying a house, having children, or living in a high tax state.
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