SALT Deduction Cap 2026: How the OBBBA Raised the Limit to $40,000
Quick Answer: The OBBBA increased the federal SALT (state and local tax) deduction cap from $10,000 to $40,000 for tax years 2025–2029, with phase-outs starting at $500,000 MAGI. Homeowners in California, New York, New Jersey, Connecticut, Massachusetts, and Illinois benefit most. At a 24% federal bracket, recovering the full $30,000 in previously-capped deductions saves approximately $7,200 in federal taxes annually.
SALT Deduction Cap 2026: How the OBBBA Raised the Limit to $40,000
By Maya Chen | Tax / W2 / 2026 Legislation
Maya Chen is an AI editorial persona created by Aedilis. She’s a registered nurse who hit financial independence at 38 by building multiple income streams while maximizing tax-advantaged accounts. This is educational content, not personalized financial/tax advice — consult a qualified professional for your specific situation.
If you own a home in a high-tax state and you’ve been watching your federal tax bill stay stubbornly high since 2018 despite paying $15,000, $20,000, or $30,000 in state and property taxes — this is the article you’ve been waiting for.
The OBBBA raised the SALT cap. Here’s exactly what changed, who benefits, and what it’s actually worth in dollars.
What Is the SALT Deduction?
The state and local tax (SALT) deduction lets itemizing taxpayers deduct what they pay in state income taxes and local property taxes from their federal taxable income.
Before the Tax Cuts and Jobs Act (TCJA) in 2017, this deduction was unlimited. A homeowner paying $40,000 in state income and property taxes could deduct the full $40,000 from federal taxable income.
The TCJA capped it at $10,000 — and the cap applied the same to individuals and married couples filing jointly. A two-income household in New Jersey paying $25,000 in property taxes plus $20,000 in state income taxes got the same $10,000 deduction as a single person paying $3,000 total. It was widely seen as the most painful change in TCJA for upper-middle-class homeowners in high-tax states.
What the OBBBA Changed
The One Big Beautiful Bill Act (OBBBA) raised the SALT cap to $40,000 for tax years 2025 through 2029.
| TCJA (2018–2024) | OBBBA (2025–2029) | |
|---|---|---|
| SALT deduction cap | $10,000 | $40,000 |
| Applies to | Individuals and MFJ alike | All filing statuses |
| Phase-out starts at | N/A | $500,000 MAGI |
| Phase-out | N/A | $1 reduction per $1 over threshold |
| Sunset | Extended to 2025 | Dec 31, 2029 |
The $40,000 cap applies to the combined total of state income taxes (or sales taxes) and local property taxes, same as before.
Who Benefits — and How Much
The benefit is straightforward: every dollar of previously-disallowed SALT that you can now deduct reduces your federal taxable income by a dollar.
Real-World Examples
California homeowner, married filing jointly:
– Property tax: $12,000
– CA state income tax: $18,000
– Total SALT paid: $30,000
– Old deduction: $10,000
– New deduction: $30,000 (under $40k cap)
– Additional deduction: $20,000
– Tax savings at 24% bracket: $4,800/year
New York City household, married filing jointly:
– Property tax: $14,000
– NY + NYC state/city income tax: $22,000
– Total SALT paid: $36,000
– Old deduction: $10,000
– New deduction: $36,000
– Additional deduction: $26,000
– Tax savings at 24% bracket: $6,240/year
New Jersey homeowner, married filing jointly:
– Property tax: $18,000
– NJ state income tax: $12,000
– Total SALT paid: $30,000
– Old deduction: $10,000
– New deduction: $30,000
– Additional deduction: $20,000
– Tax savings at 24% bracket: $4,800/year
The Phase-Out for Higher Earners
The benefit phases out above $500,000 MAGI. For every dollar of income above $500,000, the maximum deductible SALT amount decreases by a dollar — until it floors at $10,000.
So above $530,000 MAGI, the effective cap returns to $10,000 (the same as under TCJA).
| MAGI | Max SALT Deduction |
|---|---|
| Under $500,000 | $40,000 |
| $510,000 | $30,000 |
| $520,000 | $20,000 |
| $530,000+ | $10,000 (floor) |
Most homeowners in high-tax states earn well under $500,000. The full $40,000 cap is available to the vast majority of people who need it.
You Still Need to Itemize
This is the critical caveat: the SALT deduction is only available if you itemize deductions. It does nothing for you if you take the standard deduction.
The 2026 standard deduction is:
– $15,750 for single filers
– $31,500 for married filing jointly
For the SALT increase to benefit you, your total itemized deductions must exceed your standard deduction. The math for homeowners in high-tax states usually works — but it’s not guaranteed.
Quick test: should you itemize?
Add up:
– State and local taxes (now up to $40,000)
– Mortgage interest (Schedule A)
– Charitable contributions
– Other deductible items
If that total beats $31,500 (MFJ), itemize. If not, the SALT increase doesn’t help you this year.
States Where This Matters Most
The SALT cap change primarily helps residents of states with high income taxes and/or high property taxes:
| State | Why It Matters |
|---|---|
| California | Top marginal rate 13.3%; property taxes significant in many counties |
| New York | State + NYC income tax can reach 14%+; property taxes high in suburbs |
| New Jersey | Highest property taxes in the U.S. (avg. $9,500/year) |
| Connecticut | High income and property taxes |
| Massachusetts | 5% flat income tax + high property values |
| Illinois | High property taxes (avg. 2.2% effective rate) |
| Maryland | State + county income taxes stack to 8%+ for many households |
If you live in one of these states, own a home, and itemize — this change is significant.
How to Claim the Increased SALT Deduction
No new forms or boxes. The SALT deduction works exactly as before — it’s part of Schedule A, Line 5.
For your 2025 return (filed 2026):
Add your 2025 state income tax paid (or sales tax if you elected that) plus your local property taxes. Enter on Schedule A, Line 5b (state and local income taxes) and Line 5c (real estate taxes). The cap is now $40,000 instead of $10,000.
For your 2026 return (filed 2027):
Same process. The $40,000 cap continues through 2029.
If you withheld state taxes via W-2 payroll: Your state income tax paid appears on your W-2 Box 17 (state tax withheld). That’s the number to use.
The Interaction With AMT
One historical caveat: before 2018, the unlimited SALT deduction frequently triggered Alternative Minimum Tax (AMT) for high-earners. The TCJA significantly curtailed AMT exposure.
Under the OBBBA, AMT exemptions were further adjusted. For most households under $500,000 income, AMT is not a concern with the $40,000 SALT cap. For households near or above $500,000, consult a CPA to verify whether AMT affects your SALT benefit.
The SALT Change in the Bigger OBBBA Picture
The SALT cap increase is one of several OBBBA changes that hit W2 earners in 2025–2026. Combined with the other provisions, a high-income W2 employee in a high-tax state could see meaningful total relief:
| OBBBA Provision | Max Benefit (24% bracket) |
|---|---|
| SALT cap: $10k → $40k | Up to $7,200/year |
| Overtime premium deduction (if applicable) | Up to $3,000/year |
| 401(k) super catch-up for ages 60–63 | Up to $2,700/year in added deduction |
| Trump Account employer contribution exclusion | Up to $500/year (if offered) |
None of these are permanent. They’re all scheduled to expire unless Congress extends them.
The Aedilis Take
The SALT cap increase is the most broadly impactful OBBBA provision for upper-middle-class homeowners. It’s not flashy — it’s just restoring a deduction that was unfairly capped in 2017 for people who happen to live where the cost of government is high.
What to do right now:
- Check if you itemize. If your total deductions exceed the standard deduction ($31,500 MFJ / $15,750 single), this change puts real money in your pocket.
- Total your 2025 SALT. State income tax withheld (W-2 Box 17) plus property tax bills. If that total is between $10,000 and $40,000, you have newly-deductible dollars.
- Adjust your W-4 withholding if you want to capture the benefit in your paycheck rather than wait for a refund. Use the IRS W-4 estimator with your updated itemized deductions.
- Tell your CPA. If you’ve been taking the standard deduction for the past several years because itemizing wasn’t worth it, re-run the numbers. The calculation changed.
The SALT increase expires December 31, 2029. Use it while it’s here.
More from the OBBBA cluster: No Tax on Overtime | No Tax on Tips | 401k Limits & Catch-Up Rules 2026 | Trump Accounts (530A) | OBBBA Complete Guide
FTC Disclosure: This article contains no affiliate links. This is purely educational content.
Disclaimer: This is educational content, not personalized tax advice. OBBBA SALT provisions are based on IRS and legislative guidance as of May 2026. Rules may change; consult a qualified CPA for your specific situation.
