For years, many homeowners in high-tax states did the math at tax time and gave up on itemizing. The write-off for their state and local taxes was capped so low that the standard deduction won every time. A 2025 law just changed that math, and for a lot of households it is now worth pulling out the property tax bills again.
The SALT cap jumped from $10,000 to $40,000
The One Big Beautiful Bill Act raised the cap on the state and local tax deduction, known as SALT, from $10,000 to $40,000 starting in 2025. SALT is the deduction for the state and local income and property taxes you already pay. The cap is set to rise about 1% a year, reaching roughly $40,400 in 2026, and it holds at these higher levels through 2029.
That is a large jump. A homeowner who was previously limited to writing off $10,000 of combined state income and property taxes may now be able to deduct several times that amount. Official inflation adjustments and related figures are posted through the IRS newsroom as each year’s numbers are confirmed.
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Why this makes itemizing worth it again
The higher cap does not automatically cut your taxes. It only helps if itemizing beats the standard deduction for your household. Under the old $10,000 limit, many families found their total itemized deductions fell short of the standard deduction, so they took the standard amount and moved on.
With up to $40,000 of state and local taxes now deductible, that calculation flips for a lot of homeowners, especially in states with high property taxes. If your property tax bill alone is large, adding state income tax on top can push your itemized total well past the standard deduction, which is the whole point of the change. Analysis from the Tax Foundation lays out how the year’s thresholds fit together.
Consider what that looks like in a high-tax state. A homeowner paying substantial property taxes plus state income tax could easily have combined state and local taxes well above the old $10,000 ceiling. Under the old cap, everything above $10,000 was simply lost for deduction purposes. Now much more of it counts, and that extra deducted amount can be the difference that makes itemizing the better choice.
The phase-down above $500,000
The full $40,000 cap is not available at every income level. It phases down at a 30% rate for modified adjusted gross income above about $500,000, and it returns to the old $10,000 cap for income above roughly $600,000. Married couples filing separately get half the cap, or $20,000.
For most working families and retirees, those phase-out lines are well above their income, so the full higher cap applies. If your household is in that higher-income range, though, the benefit shrinks as income rises and eventually lands back at $10,000, so it is worth knowing where you fall before you count on the larger deduction.
The phase-down is worth understanding even if it does not apply to you, because it explains who the bigger deduction is really aimed at. It is built to give the full benefit to middle-income and upper-middle-income homeowners while pulling it back for the highest earners. For a typical working household or retiree in a high-property-tax area, the full higher cap is the version that applies.
The 2030 expiration to keep on your radar
This higher cap is not permanent. It is scheduled to revert to $10,000 in 2030 unless Congress acts again. For now, that gives homeowners several years of a much larger deduction, but it also means the current planning window has an end date.
If you are making decisions that stretch across years, such as when to prepay certain taxes or how to think about a home purchase, the 2030 sunset is a detail worth keeping in mind rather than assuming the $40,000 cap is forever.
Congress has adjusted the SALT cap before, so the 2030 date is not necessarily the final word. Still, planning around what the law says today, rather than what it might say later, is the safer approach for a household budget.
Run the standard-deduction comparison first
Before you get too excited about the bigger write-off, the honest first step is a simple comparison. You only benefit from the higher SALT cap if your total itemized deductions exceed the standard deduction for your filing status. If they do not, you will still take the standard deduction and the higher cap changes nothing for you.
So gather your numbers: state and local income taxes paid, property taxes, and any other itemized deductions such as mortgage interest and charitable gifts. Add them up, compare the total to your standard deduction, and take whichever is larger. For many homeowners in high-tax states, that comparison now tips toward itemizing for the first time in years. That extra deduction can translate into a lower tax bill and, for some households, a larger refund.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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