If you own a home in a state with meaningful property or income taxes, you may have heard that the SALT deduction cap got bigger. For 2026, the limit climbs to $40,400 — but the fine print about who actually benefits, and how the phase-out works, rarely makes it into the headlines.

Here’s what changed, who it actually helps, and how to figure out whether itemizing still beats just taking the standard deduction.

What Is the SALT Deduction, Quickly

The state and local tax (SALT) deduction lets you write off certain state and local taxes on your federal return — specifically state and local income taxes (or sales taxes, if you choose that instead) plus property taxes — but only if you itemize deductions instead of taking the standard deduction.

That last part matters: if your total itemized deductions (SALT plus mortgage interest, charitable gifts, and any deductible medical expenses) don’t add up to more than your standard deduction, the SALT cap change won’t affect your tax bill at all.

The New 2026 Cap: $40,400

Under the One Big Beautiful Bill Act (OBBBA), the old $10,000 SALT cap ($5,000 if married filing separately) — in place since 2018 — was raised starting with the 2025 tax year. The 2025 cap was $40,000. For 2026, the IRS confirmed the limit rises to $40,400 ($20,200 if married filing separately), with 1% annual increases scheduled through 2029.

Unless Congress extends it again, the cap is set to drop back down to the old $10,000 level after the 2029 tax year.

The Income Phase-Out Nobody Reads the Fine Print On

The higher cap isn’t unlimited for high earners. For 2026, once your modified adjusted gross income (MAGI) exceeds $505,000 ($252,500 if married filing separately), the $40,400 limit starts shrinking — reduced by 30 cents for every dollar of MAGI above that threshold.

The good news for most retirees: even after the phase-out fully kicks in, the deduction never drops below the old $10,000 floor ($5,000 married filing separately). So nobody ends up worse off than they were under the prior rules.

Who Actually Benefits (Comparison Table)

Not every homeowner sees a difference. Here’s a quick comparison of common situations:

Situation	Old $10,000 Cap	New $40,400 Cap (2026)	Extra Deduction Unlocked
Renter, no state income tax paid	$0 SALT deduction	$0 SALT deduction	None — cap change doesn’t apply
Homeowner, low-tax state, $4,000 property tax	$4,000 deducted	$4,000 deducted	None — already under old cap
Homeowner, $9,000 property tax + $6,000 state income tax	Capped at $10,000	Full $15,000 deducted	$5,000 more deducted
Retiree, MAGI over $505,000, high state taxes	Capped at $10,000	Cap phased down toward $10,000	Little to none

In short: the increase mainly helps middle- and upper-middle-income homeowners in higher-tax states whose combined property and state income taxes were running well above $10,000 a year — and who itemize rather than use the standard deduction.

Simple Calculation Example

Take a retired couple paying $9,000 a year in property tax on their home, plus about $6,000 in state income tax on pension and IRA withdrawals — $15,000 in SALT total.

• Under the old $10,000 cap: only $10,000 of that $15,000 was deductible.
• Under the new $40,400 cap: the full $15,000 is deductible — $5,000 more than before.
• Rough tax effect: at a 22% marginal federal bracket, that extra $5,000 deduction is worth about $1,100 in reduced federal tax, assuming the couple itemizes.

Should You Itemize or Take the Standard Deduction?

Before assuming the higher SALT cap helps you, add up your likely itemized deductions:

1. Mortgage interest paid for the year
2. SALT total (property tax + state income or sales tax), capped at $40,400
3. Charitable donations
4. Out-of-pocket medical expenses above 7.5% of your adjusted gross income

If that total is higher than your 2026 standard deduction, itemizing — and benefiting from the bigger SALT cap — makes sense. If it’s lower, the standard deduction still wins, and the SALT cap increase won’t change your return either way.

FAQ

Does the SALT cap increase affect how much of my Social Security is taxed?
No. The formula that decides how much of your benefits are taxable starts from your adjusted gross income, and itemized deductions such as SALT are subtracted after that point. A bigger SALT deduction lowers your taxable income, but it does not change how much of your Social Security is taxable.

Do renters get any benefit from the higher SALT cap?
No. SALT deductions apply to property taxes and state/local income or sales taxes paid by the taxpayer. Renters typically don’t pay property tax directly, so the cap increase has no effect on their return.

What happens to the SALT cap after 2029?
Under current law, the cap is scheduled to revert to $10,000 ($5,000 married filing separately) starting in 2030, unless Congress passes new legislation to extend or change it.

This article is for general information and isn’t personalized tax advice — a tax professional can confirm how the SALT cap applies to your specific return.

Worked Example: Does the Bigger Cap Tip You Into Itemizing?

The IRS lists the 2026 standard deduction at $32,200 for married couples filing jointly and $16,100 for single filers. Taxpayers 65 or older also get an additional standard deduction amount, which the IRS publishes each year. The figures below use about $1,650 per spouse for a married couple, so a couple who are both 65 or older would have a standard deduction of roughly $35,500. Confirm the exact add-on on IRS.gov before you rely on this. All three couples are assumed to be in the 22% bracket.

Couple	SALT paid	Mortgage interest + gifts	Total itemized (new cap)	Total itemized (old $10,000 cap)	Better choice
A	$15,000	$9,000	$24,000	$19,000	Standard deduction either way. Cap change worth $0.
B	$15,000	$22,000	$37,000	$32,000	New cap tips them into itemizing: $1,500 above the standard deduction, about $330 in tax
C	$28,000	$14,000	$42,000	$24,000	Itemize: $6,500 above the standard deduction, about $1,430 in tax

This matters for the earlier example in this article. The extra $5,000 deduction only turns into $1,100 of savings if the couple’s total itemized deductions beat the standard deduction. Compare the total, not just the SALT line. The numbers here are illustrations, not tax advice.

What the Phase-Out Does to a High Earner

For 2026 the cap shrinks by 30 cents for each dollar of MAGI above $505,000, but it never goes below $10,000 (the IRS confirms the $505,000 threshold and the $10,000 floor). The 30% rate comes from the law as described in tax-firm summaries rather than the IRS notice, so confirm it with a preparer if you are near the threshold. Here is how the math works with a married couple filing jointly:

MAGI	Amount over $505,000	Reduction (30%)	SALT cap
$505,000 or less	$0	$0	$40,400
$555,000	$50,000	$15,000	$25,400
$605,000	$100,000	$30,000	$10,400
About $606,333 and above	About $101,333	$30,400	$10,000 (the floor)

For most retirees the phase-out never comes up, because MAGI of $505,000 is far above typical retirement income. A big one-time event can change that. A large IRA withdrawal, a Roth conversion, or the sale of a business or a second property can push MAGI over the line for a single year.

Timing and Common Mistakes

• Only taxes you actually paid in 2026 count. A property tax bill due in January 2027 belongs on next year’s return, even if the bill arrives in December.
• Do not count the same tax twice. If your mortgage servicer pays property tax from escrow, use the amount actually paid out of escrow during the year, which your annual escrow statement shows, not the figure you think you owe.
• Choose either state income tax or sales tax. You cannot deduct both, though property tax is added to either one.
• Do not forget the separate senior deduction. The $6,000 deduction for people 65 and older, covered in our Schedule 1-A guide, is separate from SALT, and you can claim it whether you itemize or take the standard deduction.
• Do not assume your state’s rules match the federal ones. Many states have their own deduction rules, so check your state return separately.