SALT cap explained
How the $10,000 SALT deduction cap works in 2026
The SALT (State and Local Tax) deduction lets you subtract certain taxes you pay to state and local governments from your federal taxable income. Since the Tax Cuts and Jobs Act (TCJA) took effect in 2018, this deduction has been capped at $10,000 per tax return ($5,000 for married filing separately). For homeowners in high-tax states, this cap is one of the most consequential provisions in the tax code.
The cap applies to the combined total of state income tax (or state sales tax, your choice) and local property tax. Before the TCJA, there was no cap — you could deduct every dollar of state and local tax. Now, any SALT above $10,000 is simply lost. This means a homeowner paying $8,000 in property tax and $7,000 in state income tax has $15,000 in SALT but can only claim $10,000 on Schedule A.
Who benefits from itemizing in 2026?
Itemizing only helps if your total itemized deductions exceed the standard deduction. With the 2026 standard deduction at $16,100 (single) or $32,200 (MFJ), and SALT capped at $10,000, you need substantial other deductions to clear the threshold:
| Filing status | Standard deduction | SALT (capped) | Other deductions needed to itemize |
|---|---|---|---|
| Single | $16,100 | $10,000 | $6,100+ (mortgage interest + charity) |
| Married filing jointly | $32,200 | $10,000 | $22,200+ (mortgage interest + charity) |
| Head of household | $24,150 | $10,000 | $14,150+ (mortgage interest + charity) |
For married couples, the bar is especially high: $22,200 in non-SALT deductions is a large mortgage interest bill and substantial charitable giving. This is why most MFJ taxpayers now take the standard deduction even with significant property taxes.
What counts as SALT?
| Included in SALT | NOT included |
|---|---|
| State income tax (W-2 Box 17, estimated payments) | Federal income tax |
| Local income tax (city/county payroll taxes) | Foreign income taxes (use Foreign Tax Credit instead) |
| State/local sales tax (alternative to income tax) | Estate, inheritance, gift taxes |
| Real property tax (on your home or land) | Personal property tax on vehicles (some states; check rules) |
State-by-state impact: who gets hurt most?
The SALT cap has the biggest impact in states with both high income taxes and high property taxes. The mismatch between actual SALT and the deductible amount drives the "lost deduction" figure:
| State profile | Typical SALT | Deductible | Lost deduction |
|---|---|---|---|
| NJ homeowner ($120K income) | ~$17,000 | $10,000 | $7,000 |
| CA renter ($100K income) | ~$6,000 | $6,000 | $0 |
| NY homeowner ($150K income) | ~$20,000 | $10,000 | $10,000 |
| TX homeowner ($100K, no income tax) | ~$5,000 | $5,000 | $0 |
Figures are illustrative. Use the calculator above with your actual tax amounts for a precise result.
Strategies to work within the SALT cap
Bunch deductions across years: If you are near the itemizing threshold, consider concentrating charitable contributions into alternating years — donate double in one year to itemize, then take the standard deduction the next year. This does not help with SALT itself (you cannot time property taxes the same way) but makes itemizing worthwhile when you do claim SALT.
Donor-advised fund (DAF): Contribute several years of intended charitable giving into a DAF in a single year to push above the standard deduction, then distribute grants over future years.
Pass-through entity tax (PTET): Some states (NY, NJ, CA and others) allow business owners to pay state income tax at the entity level, which is deductible as a business expense and not subject to the $10,000 SALT cap. This only applies to certain business structures (S-corps, partnerships).
Common questions
SALT deduction calculator FAQ
What is the SALT deduction cap for 2026?
The SALT (State and Local Tax) deduction is capped at $10,000 per tax return ($5,000 if married filing separately) under the Tax Cuts and Jobs Act. This cap applies to the combined total of state income tax (or sales tax) and property tax that you can deduct when itemizing on Schedule A. The cap was enacted in 2018 and remains in effect for the 2026 tax year.
What taxes count toward the SALT deduction?
The SALT deduction includes state and local income taxes (or state and local sales taxes, but not both), and real property taxes (property tax on your home). It does not include federal taxes, foreign taxes (which have their own credit), estate taxes or transfer taxes. You must choose between deducting income tax or sales tax — most people in income-tax states choose income tax.
Should I itemize or take the standard deduction in 2026?
You should itemize only if your total itemized deductions (SALT capped at $10,000, mortgage interest, charitable contributions, and medical expenses above 7.5% of AGI) exceed the standard deduction. For single filers in 2026, the standard deduction is $16,100. For married filing jointly, it is $32,200. If your SALT alone is capped at $10,000, you typically need at least $6,100 (single) in other deductions to benefit from itemizing.
How does the SALT cap affect high-tax states?
The $10,000 cap disproportionately affects residents of high-tax states like New York, California, New Jersey and Connecticut. A homeowner in New Jersey paying $12,000 in property tax and $5,000 in state income tax has $17,000 in SALT but can only deduct $10,000. Before the TCJA, they could deduct the full $17,000. The lost $7,000 deduction can mean $1,500 to $2,500 in additional federal tax depending on their bracket.
Does the SALT cap apply to married filing jointly?
Yes, the $10,000 cap applies per return, not per person. A married couple filing jointly has the same $10,000 limit as a single filer. This is sometimes called the SALT marriage penalty because two single filers could each claim $10,000 ($20,000 total), but the same couple filing jointly is limited to $10,000.
Can I deduct state income tax paid on my W-2?
Yes. The state income tax withheld from your W-2 paychecks (shown in Box 17) counts toward your SALT deduction, subject to the $10,000 cap. If you also owe estimated state tax payments or received a state refund, those factor in as well. Remember: the SALT deduction only helps if your total itemized deductions exceed the standard deduction.
What if my SALT exceeds $10,000?
Any SALT above $10,000 is lost — you cannot deduct it. This means that for a high-income homeowner in a high-tax state, additional property tax or state income tax provides zero incremental federal tax benefit. Some states have enacted pass-through entity tax (PTET) workarounds that allow business owners to bypass the cap, but these apply only to certain business structures.
- Sources: TCJA Section 11042 ($10,000 SALT cap) · IRS Rev. Proc. 2025-32 (2026 standard deductions) · IRS Schedule A instructions.
- 🔄 Last updated July 2026 · Tax year 2026
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