What is the SALT Deduction? (And Why High Earners Hate It)

If you live in Texas or Florida, you probably don’t care. But if you own a home in New York, New Jersey, or California, the “SALT Cap” is your worst enemy. Here is why you are limited to deducting only $10,000, and what happens now that the law is set to expire.

BMT Tax Research Team BMT Tax Research Team · 📅 Jan 2026 · ⏱️ 5 min read · TAX TIPS › DEDUCTIONS
The Cap
$10,000
Max DeductionLimit
Includes
Prop + Inc
State TaxesTotal
Status
Sunset?
Expires End of ’25News

The SALT Bucket Formula

You can’t deduct everything. You have to choose. The SALT deduction is a bucket that fills up with two things.

Component 1 Component 2 (Pick One) Total Limit
Property Taxes State Income Tax $10,000
(Real Estate Tax) OR Sales Tax*
*Sales Tax Strategy
If you live in a state with NO income tax (like Texas, Florida, Washington), you choose Sales Tax instead. You can deduct the sales tax you paid on big purchases (like a new car or boat) plus your property tax.
The Pain of the Cap
Actual Taxes Paid (NY) $25,000
Property + State Tax.
Allowed Deduction $10,000
Capped by TCJA law.
Lost Deduction $15,000
Phantom money.

The 2026 Cliffhanger: Will it Expire?

The $10,000 cap was part of the “Tax Cuts and Jobs Act” (TCJA) of 2017. That law is scheduled to sunset (expire) after Dec 31, 2025.

  • For 2025 Taxes (Filed now, in early 2026): The $10,000 cap is STILL IN EFFECT. You cannot deduct more than $10k this year.
  • For 2026 Taxes (Filed next year): Unless Congress votes to extend the law, the cap disappears, and the deduction becomes unlimited again.
  • The Political Fight: High-tax states want the cap gone. Low-tax states want to keep it to pay for other tax cuts. Watch the news closely.

Pro Tip: Don’t File “Married Separately”

People think: “If we file separately, we each get $10,000, right? Total $20,000?”

The IRS is Ahead of You

NO. The law explicitly closes this loophole.
If you are Married Filing Separately (MFS), your SALT cap drops to $5,000 each.
Total for the couple remains $10,000. There is no escape.

Frequently Asked Questions

Does the Standard Deduction cover this?
Yes. If your total itemized deductions (SALT + Mortgage Interest + Charity) are less than the Standard Deduction (~$30,000 for married), you should just take the Standard Deduction. The SALT cap doesn’t matter to you.
Can I deduct Foreign Property Tax?
No. You cannot deduct property taxes paid on foreign real estate (e.g., a vacation home in Italy). The SALT deduction is strictly for U.S. state and local taxes.