Published for www.dmarron.com, October 12, 2012
You’ve probably heard claims that Mitt Romney wants to cut taxes by $5 trillion. Here are five things you should know about that figure:
1. $5 trillion is the gross amount of tax cuts he has proposed, not the net impact of all his intended tax reforms.
Governor Romney has been very specific about the taxes he would cut. Most notably, he would reduce today’s individual income tax rates by one-fifth (so the 10 percent bracket would fall to 8 percent, the 35 percent to 28 percent, etc.) and reduce the corporate income tax rate from 35 percent to 25 percent. In addition, he would eliminate the alternative minimum tax (AMT), the estate tax, the taxes created in 2010’s health reform act, and taxes on capital gains, dividends, and interest for incomes up to $200,000 ($100,000 for singles). The $5 trillion figure reflects the revenue impact of all those cuts.
But Romney has also said that he intends his reforms to be revenue-neutral, with the specified revenue losses being offset by a combination of economic growth and unspecified cuts in deductions and other tax preferences. The net impact of his reforms would undoubtedly be less than $5 trillion, perhaps much less if he’s aggressive in going after tax breaks or willing to compromise on some of his other tax reform goals (e.g., not raising taxes on investment income). Without any details about what he would do, however, we can’t measure the net revenue impact of his ideas.