The five states that lost the most taxpayers aren’t exactly known for fiscal restraint. New York, California, Illinois, New Jersey, and Massachusetts have lost a net total of 219,937 taxpayers and more than $28 billion in adjusted gross income (AGI). On average, these states have a state-local effective tax rate of 11.8 percent.
On the other hand, the five states that gained the most taxpayers are all low-tax states—in fact, three of the five states have no state income tax. Florida, Texas, Arizona, North Carolina, and Washington state gained a net total of 194,340 taxpayers and $28.9 billion in AGI, all while averaging a state-local effective tax rate of just 8.96 percent. Unsurprisingly, Florida is the big winner here, adding $17.5 billion in AGI to its tax base alone.
If you’re thinking that these states should consider cutting back on spending rather than blissfully continuing down this death spiral, you wouldn’t fit in well among their policymakers. Instead, they’re counting on a reinstituted SALT deduction to pass the tax burden they place on their residents on to taxpayers elsewhere.
Of the 10 counties that saw the largest benefit from the SALT deduction before it was capped, nine are in the five states that suffered the greatest net loss of taxpayers (the other is in Connecticut, which lost the 11th most net total of taxpayers). These 10 counties lost a net total of more than 35,000 taxpayers and $10.4 billion in AGI between 2018 and 2019, after the SALT deduction was capped.
It’s easy to see why high-tax states view the capping of the SALT deduction as an existential threat. Without the ability to write off their high state and local taxes on their federal tax returns, residents there face the full brunt of the tax burden imposed by the state.
However, that’s far more of an indictment of the tax policies of high-tax states than it is a reason to reinstate the full SALT deduction. Tax liabilities reduced by the SALT deduction necessarily result in either higher taxes for other taxpayers or a greater accumulation of debt. Either way, average taxpayers elsewhere pay.
Instead of counting on the federal government to bail them out, states with uncompetitive tax structures should look inward. When residents don’t feel like the taxes they pay are fair or reasonable, they leave for a state with more reasonable tax burdens. If high-tax states want to keep their residents, they need to recognize that fact.