Property Tax Deductions: The Complete Guide

The SALT Deduction Cap: What Changed

The Tax Cuts and Jobs Act (TCJA) of 2017 capped the State and Local Tax (SALT) deduction at $10,000 ($5,000 married filing separately). This limit covers the combined total of:

- State and local income taxes (or sales tax)
- Property taxes

Before the cap, homeowners in high-tax states could deduct their full property tax and state income tax. A homeowner in New Jersey paying $12,000 in property taxes and $8,000 in state income tax used to deduct $20,000. The TCJA capped them at $10,000.

The cap was raised, not eliminated. The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, replaced the flat $10,000 cap with a much higher one: $40,000 for 2025, rising 1% per year to $40,400 for 2026 ($20,200 for married filing separately). It's scheduled to keep climbing 1%/year through 2029, then revert to a flat $10,000 ($5,000 married filing separately) for everyone in 2030 unless Congress acts again.

There's a catch for high earners. If your Modified Adjusted Gross Income (MAGI) is above $505,000 (2026; $252,500 for married filing separately), the higher cap phases down — reduced 30 cents for every dollar of MAGI over the threshold. It never drops below the old $10,000 ($5,000 MFS) floor, though, so nobody loses ground versus the pre-OBBBA rules.

Who benefits most? Homeowners in high-tax states — New Jersey (avg. $9,527 property tax), Connecticut ($7,925), New Hampshire ($7,526), New York ($7,000+) — who previously hit the $10,000 ceiling can now deduct several times more, as long as their income is under the phase-out threshold. Run your own numbers, including the itemize-vs-standard-deduction comparison, with our SALT Deduction Cap Calculator.

Common Property Tax Exemptions

Most states offer exemptions that reduce your assessed value, lowering your tax bill:

Homestead Exemption — Available in most states for primary residences. Texas offers one of the most generous: a $100,000 exemption on school district taxes. Florida caps assessment increases at 3% per year (Save Our Homes). This can save $1,000-5,000+ annually.

Senior / Over-65 Exemption — Additional exemptions for homeowners over 65. Some states freeze the assessed value entirely. Texas adds $10,000 to the homestead exemption for seniors.

Disability Exemption — Similar to senior exemptions for qualifying disabled homeowners. Often includes a tax ceiling (payment can't increase).

Veteran Exemption — Many states offer partial or full exemptions for disabled veterans. Some states (like Texas) offer complete property tax exemption for 100% disabled vets.

Agricultural / Land Use — Rural property used for farming or timber can qualify for use-value assessment instead of market value, often reducing taxes 50-90%.

Check your state's specific exemptions using our property tax calculator.

How to Appeal Your Property Tax Assessment

Your property tax bill is based on your home's assessed value × the tax rate. While you can't change the rate, you CAN challenge the assessed value. Studies suggest 30-40% of properties are over-assessed.

Step 1: Check Your Assessment
Get your property card from the assessor's office (or website). Check for errors: wrong square footage, extra bedrooms/bathrooms, incorrect lot size, or features you don't have. Data errors are the easiest wins.

Step 2: Research Comparable Sales
Find 3-5 similar properties that sold recently for less than your assessed value. "Similar" means: same neighborhood, similar size, age, condition, and lot size. These "comps" are your strongest evidence.

Step 3: File an Appeal
Most jurisdictions have a 30-90 day window after assessments are published. File an informal appeal first (often a conversation with the assessor), then a formal appeal to the review board if needed.

Step 4: Present Your Case
Bring your comps, photos of any property issues (deferred maintenance, flood zone, noise), and the assessment errors you found. Be factual, not emotional.

Success rate: About 40-50% of formal appeals result in a reduction. The average reduction is 10-15% of assessed value.

States With the Lowest and Highest Property Taxes

Lowest Effective Rates (2026):
1. Hawaii — 0.29%
2. Alabama — 0.37%
3. Arizona / Utah — 0.48% (tie)
5. South Carolina — 0.49%

Highest Effective Rates (2026):
1. New Jersey / Illinois — 1.88% (tie)
3. Connecticut — 1.54%
4. Vermont — 1.51%
5. New Hampshire — 1.50%

On a $350,000 home, the difference between Hawaii (0.29% = $1,015/year) and New Jersey (1.88% = $6,580/year) is $5,565 per year — $55,650 over 10 years. That's a second car, a year of college tuition, or significant retirement savings.

See the complete ranking: Lowest Property Tax States.