The federal deduction for state and local taxes (SALT) is back in the spotlight.
Senate Republicans unveiled their tax plan Monday, leaving millions of Americans wondering what it means for their wallets. If you live in a high-tax state or own property, this political tug-of-war could significantly impact your tax bill.
Understanding the SALT deduction
SALT helps you avoid double taxation on the same income. When you itemize deductions on your federal return, you can write off what you’ve already paid in state income taxes and local property taxes. Before 2018, there wasn’t a limit. If you paid $50,000 in state and local taxes, you could deduct the full amount.
That changed with the 2017 Tax Cuts and Jobs Act, which capped the deduction at $10,000. For homeowners in places like New York, New Jersey, and California, where property taxes alone can exceed that limit, it felt like a gut punch.
Where negotiations stand
According to the Senate Finance Committee’s proposed text, lawmakers are maintaining the $10,000 cap, at least for now. That’s well below the $40,000 limit House Republicans approved in May, and it’s already sparking backlash.
Rep. Mike Lawler from New York called the Senate’s proposal “DEAD ON ARRIVAL” on X, while Rep. Nicole Malliotakis described it as “a slap in the face” to Republican districts that helped deliver the party’s majority.
Senate Majority Leader John Thune acknowledged on Fox News Sunday that “there isn’t a high level of interest in doing anything on SALT” in the Senate, but suggested they’d find “a compromise position” to secure House votes.
What this uncertainty means for taxpayers
The current $10,000 cap expires after 2025, so Congress needs to act regardless.
Raising the cap to $40,000 could mean thousands in federal tax savings for some filers. Say a homeowner pays $8,000 in state income tax and $15,000 in property taxes. Under the current cap, they can only deduct $10,000, leaving $13,000 untouched. With a $40,000 cap, they could deduct the full $23,000.
Middle-income earners in lower-tax states, however, may not feel the need to track changes to the cap. The Committee for a Responsible Federal Budget noted that benefits from raising the cap would primarily help higher-income households.
About 90% of filers take the standard deduction anyway, according to IRS data, meaning they don’t benefit from SALT deductions at all.
The hidden marriage penalty
Here’s a quirk that surprises many couples: the $10,000 cap applies whether you file single or married filing jointly.
Two single people can each deduct $10,000 in state and local taxes, but if they marry, they’re still limited to $10,000 combined.
Actions you can take today
While Washington debates, you can still make smart moves:
Adjust your withholdings. Large refunds mean you’re overwithholding. Updating your W-4 puts more money in your pocket throughout the year, giving you flexibility whatever happens with SALT.
Time property tax payments strategically. Some localities allow prepayment. If the cap increases, bunching payments in a single year could maximize your deduction.
Bundle charitable giving. Since you need to exceed the standard deduction to benefit from SALT, consider making two years of donations in one year. A donor-advised fund lets you maintain regular giving while maximizing tax benefits.
Explore state workarounds. Some states created pass-through entity taxes that effectively bypass the cap for business owners. If you have self-employment income, ask a tax professional whether this strategy could work for you.
Maintain solid records. Document all state income tax payments, property taxes, and even personal property taxes on vehicles where applicable.
The SALT debate reveals a fundamental tension in our tax code: balancing simplicity with fairness across different states and income levels. As negotiations continue, taxpayers in high-tax states will be watching closely, ready to adjust their strategies based on whatever emerges from Washington.
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