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CalcWolf Finance 2026 SALT Deduction Calculator (OBBBA $40K Cap)
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Should You Itemize in 2026? SALT Cap Calculator

The SALT cap jumped from $10,000 to $40,000. For homeowners in high-tax states, itemizing might finally make sense again. Calculate your savings.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

The 2026 SALT Cap Change: What Happened

The OBBBA raised the State and Local Tax (SALT) deduction cap from $10,000 to $40,000 for tax years 2025 through 2029 (reverting to $10,000 in 2030). This is the most significant change for homeowners in high-tax states since the original TCJA cap was imposed in 2018.

The increased cap is available to taxpayers with modified adjusted gross income under $500,000. Above that threshold, the cap is reduced by 30 cents for every dollar of income over $500,000, but never falls below $10,000. For married filing separately, the cap is $20,000 with a $250,000 phase-out threshold.

Who Benefits Most from the New SALT Cap?

The biggest beneficiaries are homeowners in high-tax states who were previously "capped out" at $10,000. Typical profiles that benefit most include dual-income households in California, New York, New Jersey, Connecticut, and Illinois with combined state income tax and property tax exceeding $15,000-20,000. Many of these households switched to the standard deduction under the old $10K cap — the $40K cap may make itemizing worthwhile again.

Should You Itemize in 2026?

Itemizing only benefits you if your total itemized deductions exceed the standard deduction ($16,100 single, $32,200 MFJ in 2026). The key components are SALT (now up to $40K), mortgage interest, and charitable contributions. This calculator compares your total itemized deductions against the standard deduction and tells you which is better.

About 14% of taxpayers are expected to itemize in 2026 under the OBBBA, compared to about 32% that would have itemized if the TCJA had expired entirely. The expanded SALT cap brings some taxpayers back to itemizing, but the higher standard deduction still makes the standard deduction better for most Americans.

The Pass-Through SALT Workaround

The OBBBA preserved the pass-through entity SALT deduction workaround that many states adopted after the original $10K cap. Business owners operating through S-corps and partnerships can continue to deduct state taxes at the entity level without being subject to the individual SALT cap. If you own a pass-through business, consult with your CPA about whether the entity-level election or the individual $40K cap provides a better result.

⚡ CalcWolf Insight

Under the old $10K SALT cap, about 90% of taxpayers took the standard deduction. The new $40K cap is expected to shift about 3-4% of filers back to itemizing — primarily dual-income homeowners in CA, NY, NJ, CT, and IL with combined state taxes and property taxes exceeding $20,000.

Frequently asked questions
What is the SALT cap in 2026?
$40,000 for single filers and married filing jointly ($20,000 for married filing separately). The cap is indexed for 1% inflation annually through 2029, then reverts to $10,000 in 2030. The cap phases out for AGI above $500,000.
Does the $40,000 SALT cap include both income and property taxes?
Yes. The SALT deduction includes state and local income taxes (or sales taxes if elected) AND property taxes combined. The $40,000 cap applies to the total of all state and local taxes, not each category separately.
I live in Texas with no state income tax. Does the SALT cap matter?
It could if your property taxes are high. Texas property taxes average 1.6-1.8% of home value. On a $500,000 home, that is $8,000-9,000 in property tax alone. Under the old $10K cap, this was nearly maxed out. Under $40K, you have plenty of room and can also elect to deduct sales tax instead of income tax.
When does the $40,000 SALT cap expire?
The increased cap applies to tax years 2025 through 2029. In 2030, it reverts to $10,000 ($5,000 for married filing separately). Congress may extend or modify the cap before 2030, but there is no guarantee. Plan accordingly.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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