For that reason, some Democratic members of Congress want to repeal the SALT cap and return to the uncapped deduction for state and local taxes that existed before the 2017 tax legislation was enacted. Giovanetti, in Democrats' Massive Tax Cut for the Wealthy correctly points out that repeal of the cap would be a much bigger benefit for the wealthy than for a anyone else. He is correct. We could quibble over his claim that it is upper-income households and especially the wealthy who pay more than $10,000 in state and local taxes and thus are affected by the SALT cap, because there are taxpayers caught by the cap who surely are not “upper-income.” We also could quibble over how much the cap hurts the wealthy, because the benefit to the wealthy of an uncapped state and local tax deduction pales in comparison to the tax breaks they get from things such as depreciation deductions on real estate that is not depreciating, the step-up in basis at death, reduced tax rates, charitable contribution deductions for the value of appreciated property without taxation of the inherent gain, and dozens more provisions designed to help starving oligarchs, to say nothing of low audit rates. But those issues matter not to finding a solution to the SALT cap problem.
Here is what I think is the best idea for dealing with the SALT cap. The cap should not be a fixed amount. It should be a fixed amount, adjusted for inflation, reduced by ten percent of the taxpayer’s modified adjusted gross income. I’m open to which definition of modified gross income is used, but certainly tax-exempt income should be included. Here are some examples. Set the cap at $40,000 minus ten percent of adjusted gross income. What is the outcome? For someone with adjusted gross income of $400,000 or more, the cap would be zero, that is, no deduction for state and local taxes. For someone with adjusted gross income of $100,000, the cap would be $30,000, though taxpayers with adjusted gross income rarely, if ever, pay state and local taxes anywhere near $30,000. For someone with adjusted gross income of $50,000, the cap would be $35,000, though again, that taxpayer would not be paying that much in state and local taxes.
Why did I pick $40,000 as the fixed amount? Because that amount, applied to the formula, would cause little or no loss of the state and local tax deduction for taxpayers with less than $400,000 of modified adjusted gross income, the breakpoint being used in the proposed legislation for other changes. It also means that taxpayers with $400,000 or more of modified adjusted gross income would be denied the state and local tax deduction. This certainly would change the proposal from a repeal that benefits the wealthy more than other taxpayers to one that spares taxpayers who are not wealthy from the SALT cap while leaving it in place for the wealthy.
Supporters of the SALT cap cannot object to my proposal unless they want the SALT cap kept in place for the taxpayers who are not wealthy but who are caught by the cap. That would be rather telling. Opponents of the SALT cap cannot object to my proposal unless they are supporters of letting those with $400,000 or more of modified adjusted gross income have a deduction for state and local taxes of at least $10,000 if not an unlimited deduction. That, too, would be rather telling.
I invite anyone with “connections” to those who are drafting the legislation or engaging in negotiations to share this proposal, by sharing the URL for this post. I'm good at some things, but being my own publicist isn't one of them. But please attribute it to me so that if anyone wants to criticize it you can step aside and let the counter-arguments come my way. And, of course, if it gains traction, well, I don’t mind being credited.