SALT Tax Deduction Explained: 2026 Cap, Phase-Out and State Workarounds

The SALT tax deduction lets itemizers deduct up to $40,400 of state and local taxes on their 2026 federal return. The cap was $10,000 until 2024. It rose to $40,000 for 2025, grows 1% a year through 2029, and falls back to $10,000 in 2030. The limit shrinks for filers with modified adjusted gross income above $505,000.

Key takeaways

• The 2026 SALT cap is $40,400 for most filers and $20,200 for married couples filing separately.
• The cap phases down by 30 cents for each dollar of income above $505,000 and never drops below $10,000.
• You only benefit if you itemize. The 2026 standard deduction is $16,100 for single filers and $32,200 for joint filers.
• The higher cap is temporary. Current law returns it to $10,000 in 2030.
• Each state tax system interacts differently with the deduction, so your state matters.

What the SALT deduction covers

SALT stands for state and local taxes. On Schedule A, you can deduct certain taxes you paid during the year, up to the cap. The deduction covers:

• State and local income taxes, or state and local general sales taxes (you choose one, not both).
• State and local real estate taxes.
• State and local personal property taxes, such as a vehicle tax based on value.

Federal income tax, Social Security tax, homeowners association dues and utility bills do not count. If you live in one of the states with no state tax on income, you can still deduct sales tax and property tax. Our sales tax calculator helps estimate the sales tax you pay in a year.

SALT cap by year

Married couples filing separately get half of each amount. For 2026 that means a $20,200 cap and a phase-down that begins at $252,500.

How the phase-down works

High earners lose part of the benefit. For 2026, the cap falls by 30% of the amount your modified adjusted gross income (MAGI) exceeds $505,000. The floor is $10,000, or $5,000 for married filing separately.

The formula is simple: cap = $40,400 − 30% × (MAGI − $505,000).

This creates a steep marginal effect. In the phase-down range, each extra $1,000 of income removes $300 of deductible state tax. Filers near the edge should plan income and payment timing with a tax professional.

Should you itemize?

The cap only matters if you itemize. For 2026 the standard deduction is $16,100 for single filers, $32,200 for married couples filing jointly and $24,150 for heads of household. Compare it to the total of your itemized deductions.

In Household C, the extra $4,600 of state tax above the cap gives no federal benefit. The old $10,000 cap would have pushed many households like A and B back to the standard deduction. That is the main reason more people can itemize now.

State workarounds

Many states built workarounds after the 2018 cap. The most common is the pass-through entity tax (PTET). Partnerships and S corporations in participating states can pay state income tax at the business level, and the entity deducts it. The owner then avoids part of the cap. These rules differ by state and have conditions, so ask a qualified preparer before relying on one.

Other state responses include credits for charitable donations and rules that let businesses deduct state tax at the entity level. The details vary, and states can change them. See our state tax data sources page for the official agencies that publish current guidance.

What happens in 2030

Current law returns the cap to $10,000 in 2030, and the phase-down disappears with it. Congress could change that before then. Until it does, households in high-tax states should plan with the temporary higher cap in mind. Some may want to bunch payments into years when they fall below the income threshold.

Common mistakes

• Deducting both state income tax and state sales tax. You choose one.
• Forgetting that the cap applies to the total of all covered taxes, not each tax.
• Assuming the full $40,400 applies at every income level.
• Itemizing without comparing the standard deduction.
• Counting a federal tax or fee as SALT.

How to figure your SALT deduction step by step

• Add your state and local income tax, or your general sales tax, for the year. Pick the larger one if you qualify to choose.
• Add your real estate taxes and personal property taxes paid during the year.
• Add the two totals together. This is your qualifying SALT total.
• Check your modified adjusted gross income. If it is $505,000 or below for 2026, the cap is $40,400. Above that, apply the phase-down formula.
• Deduct the smaller of your total and your cap on Schedule A, then compare your full itemized total with the standard deduction.

Only taxes you actually paid in the tax year count, and only taxes that were properly assessed. Paying next year’s bill early does not always create a deduction, so ask a preparer before you move money around.

Income tax or sales tax: which should you choose?

You may deduct state and local income tax or state and local sales tax, but not both. Most people in states with an income tax choose the income tax. The sales tax option helps in two situations. The first is a state with no income tax, such as Florida, Texas, Washington or Tennessee. The second is a year with a large purchase, such as a car or boat, where the sales tax is unusually high.

The IRS provides a sales tax table based on income and local rates. You can also add actual receipts for large purchases. Use our sales tax calculator to estimate what you pay on everyday spending.

Who gains most from the higher cap

The biggest winners live in states and cities with high income and property taxes, and have incomes below the phase-down level. A household that pays $30,000 in state income and property tax could not deduct most of it under the $10,000 cap. Under the $40,400 cap, the entire amount is deductible, as long as they itemize. That can lower taxable income by $20,000 or more and cut the federal bill by several thousand dollars, depending on the tax bracket.

Households in low-tax states often see less change. If your state and local taxes were already under $10,000, the larger cap changes nothing. Your decision still comes down to whether your itemized deductions beat the standard deduction.

Who gains less, or loses benefits

• High earners whose MAGI sits in the phase-down range lose 30 cents of deduction per extra dollar.
• Married couples filing separately receive half the cap and hit the phase-down sooner.
• Renters without property tax bills often have fewer deductible taxes.
• Households taking the standard deduction get no benefit from the cap at all.

Planning ideas worth discussing with a professional

If your income sits near the $505,000 line, small changes may matter. Shifting a bonus, delaying a capital gain or timing retirement account distributions can change your MAGI. In the phase-down range, every $50,000 of added income removes $15,000 of the deduction cap. Even so, tax planning should not drive large financial decisions. A qualified preparer can model your numbers.

Business owners should look at the pass-through entity tax in their state. It can restore a deduction that the individual cap would otherwise limit. Rules, eligibility and deadlines vary, so confirm them with your state revenue department.

Why the SALT debate matters for states

The cap changes how residents feel about their state taxes. When the deduction is generous, a high state tax costs a taxpayer less after federal savings. When it is limited, the full burden lands on the household. This is one reason lawmakers in high-tax states care about the cap and why people compare it with the states with no state tax on income. The deduction does not erase the difference between the two systems. It only narrows it.

Frequently asked questions

What is the SALT deduction cap for 2026?

The cap is $40,400 for most filers and $20,200 for married couples filing separately. It phases down above $505,000 of modified adjusted gross income.

Does the SALT cap go back to $10,000?

Under current law, yes. The cap returns to $10,000 in 2030 unless Congress changes it.

Can I deduct both state income tax and sales tax?

No. You may deduct either state and local income taxes or state and local sales taxes, but not both in the same year.

What is the minimum SALT cap for high earners?

The cap never falls below $10,000, or $5,000 for married couples filing separately.

Do I need to itemize to claim the SALT deduction?

Yes. The deduction appears on Schedule A, so it only helps if your itemized total beats the standard deduction.

Do states with no income tax qualify for the SALT deduction?

Yes. Residents can deduct property tax and either sales tax or any income tax paid to another state, up to the cap.

What counts toward the SALT limit?

Income or sales tax, real estate tax and personal property tax count. Federal taxes, HOA dues and utility bills do not.

For a state-by-state look at who pays income tax in the first place, start with our guide to states with no state tax.

Not affiliated with any government agency. Information only, not tax or legal advice. Read the full disclaimer.