The SALT Cap Is $40,400 for 2026: What It Means for You

The One Big Beautiful Bill Act (OBBBA), signed into law in July 2025 as P.L. 119-21, made one of the most anticipated tax changes for high-income earners in high-tax states: the State and Local Tax (SALT) deduction cap rose from $10,000 to $40,000 for 2025, and to $40,400 for 2026. For millions of homeowners and business owners in California, New York, New Jersey, Illinois, Massachusetts, Connecticut, and other high-tax states, this is a substantial reduction in federal tax liability. But it only helps if you itemize, the extra cap phases back down above $505,000 of income, and — this is the part almost every summary gets wrong — the deduction is worth far less than "cap times bracket." Here's the complete breakdown.

A Brief History of the SALT Deduction Cap

To understand the 2026 change, it's important to know where we've been:

Pre-2017: Before the Tax Cuts and Jobs Act (TCJA), there was no cap on SALT deductions. High-income earners in high-tax states could deduct all their state and local taxes. For someone in California paying $50,000 in combined state income tax and property tax, the entire $50,000 was deductible.

2017-2025 (TCJA): The TCJA introduced a $10,000 annual cap on SALT deductions ($5,000 for married filing separately). The limit applied to married couples filing jointly, single filers, and heads of household equally — the notorious marriage penalty in the provision, since two singles could deduct $20,000 between them and the same two people married could deduct $10,000. The cap was scheduled to sunset on December 31, 2025 and revert to "no cap" under pre-TCJA rules.

2025 onward (OBBBA): Instead of reverting to unlimited SALT or letting it sunset, Congress raised the cap on a schedule:

Two things follow from that table and neither is optional detail. First, this is temporary. The $40,400 cap is scheduled to snap back to $10,000 in 2030 without further legislation, which makes it a five-year planning window rather than a permanent change — unlike the 10/12/22/24/32/35/37 rate brackets, which OBBBA did make permanent. Second, the cap is not flat: above $505,000 of modified AGI in 2026 it phases down by 30% of the excess, bottoming out at the old $10,000. That phase-down is missing from most coverage of this provision, and it is the reason the change helps the upper-middle class far more than it helps the wealthy.

What Counts Toward Your SALT Deduction?

The SALT deduction includes four categories of taxes you pay to state and local governments:

You may deduct property tax plus one of income tax or sales tax — never both:

1. State Income Tax — what you paid to your state during the calendar year
2. Local Income Tax — city-level income taxes (NYC, Philadelphia, etc.)
3. Property Tax — real estate taxes on your home and on personal-use property
4. Sales Tax — an alternative to lines 1 and 2, not an addition. You elect either your income taxes or your sales taxes, using actual receipts or the IRS optional sales tax tables. The election is worth running for residents of Florida, Texas, Washington, Nevada, Tennessee, Wyoming, South Dakota and Alaska, who have no state income tax to deduct, and for anyone who bought a car or a boat in a year with unusually low income tax.

A crucial mechanical point most summaries get backwards: SALT is deductible in the year you pay it, because individuals are cash-basis taxpayers. Estimated state tax payments and withholding both count in the year the money leaves your account — that is exactly why the December-payment timing strategy below works. What does not count is a tax you accrued but have not yet paid.

What does NOT count:

• Federal income tax
• Transfer taxes, recording fees, and mortgage recording taxes on property sales (these add to basis instead)
• Penalties and interest on unpaid taxes
• Assessments for local benefits that increase your property's value (a new sidewalk, a sewer line)
• Property tax on a rental or business property — it is deductible in full on Schedule E or C and never touches the SALT cap
• Foreign real property taxes (repealed by the TCJA and not restored)

The 2026 SALT Cap: $40,400, Then a Phase-Down

For 2026, your total SALT deduction is capped at $40,400 regardless of how much you actually paid. If you pay $60,000 in combined income and property tax, $19,600 of it is simply not deductible.

The cap is the same for every filing status except married filing separately:

• Married Filing Jointly (MFJ): $40,400
• Single Filers: $40,400
• Heads of Household: $40,400
• Married Filing Separately: $20,200

The single-versus-joint parity is the marriage penalty the TCJA created, carried forward at four times the size. Two unmarried people who each own a home get $80,800 between them; marry them and they get $40,400.

The phase-down: where the $40,400 goes away

Above $505,000 of modified AGI in 2026, the cap is reduced by 30 cents per dollar of excess, and it never falls below the old $10,000 floor:

The arithmetic of that band is brutal. Between $505,000 and $606,333 you lose 30 cents of deduction for every extra dollar earned, which at a 35% federal rate is an extra 10.5 percentage points of effective marginal tax on that $101,000 slice. A household inside the band faces a real marginal rate in the mid-40s before state tax. If your income lands near the top of it, deferring compensation, harvesting losses or making a larger pre-tax retirement contribution can be worth far more than the headline rate suggests — the tax bracket explainer will show you the true marginal cost of the next dollar rather than the nominal one.

Who Benefits Most? Mapping the Impact by State

Not all high earners benefit equally. The impact of the $40,400 cap depends on how much you pay in state and local taxes — and, above $505,000 of income, on how much of the cap you are allowed to keep. Here's how major states break down:

High-Tax States Where the $40,400 Cap Helps Significantly

A caution before the list: the combined-SALT ranges below are illustrative for the household profile described, not statewide averages, and property tax varies more within a state than between states. Your own number is on your Form 1098 and your state return.

California:

• Top marginal state income tax rate is 13.3%, but Proposition 13 caps property tax growth, so the burden skews heavily toward income tax
• A dual-income professional household clears $40,400 on state income tax alone, before a dollar of property tax
• Because the burden is income-driven, California households are also the most likely to be phased down above $505,000

New York (Including NYC):

• New York City residents pay state income tax plus a separate city income tax, which no other state in this list stacks
• The combination means a NYC household reaches the cap at a lower income than an equivalent household almost anywhere else
• Above $505,000 of MAGI the phase-down bites hard, and the highest-tax residents in the country end up back at $10,000

New Jersey:

• The highest effective property tax rate in the country, above 2% of market value in much of the state
• This is the state where the increase does the most good: a $40,400 cap covers property tax and a large share of income tax for a household that used to exhaust $10,000 on property tax by February

Massachusetts:

• A flat 5% income tax, plus a 4% surtax on income above roughly $1 million (the 2022 "millionaire's tax")
• Moderate property tax; most six-figure households now deduct their full SALT rather than being capped

Illinois (Especially Chicago):

• A flat 4.95% income tax paired with some of the highest property taxes in the Midwest
• The property tax half is what pushed Illinois homeowners past $10,000; the increase covers most of them

Connecticut:

• Progressive income tax topping out at 6.99%, with high property tax in Fairfield County
• The cap helps, but Fairfield County households are also the ones most likely to sit inside the $505,000 phase-down band

States Less Impacted

Florida, Texas, Nevada, Washington, Wyoming, Alaska, South Dakota, Tennessee:

• No state income tax, so SALT is just property tax
• SALT deductions are modest (example: $15,000 property tax on $1M home in Texas)
• The $40,400 cap is not a binding ceiling for most residents — but the sales tax election below often is worth running, since there is no state income tax to deduct instead

Colorado, Arizona, Utah:

• Moderate income tax (3-5%), moderate property tax (0.4-0.8%)
• Most middle-class and upper-middle-class residents stay well below $40,400 of SALT, and many stay below the standard deduction entirely, so the change reaches them not at all

Real Dollar Example: New Jersey Homeowner

Here is the calculation done correctly — including the step almost every article on this topic skips.

Profile:

• Married filing jointly, New Jersey resident
• Combined household income: $400,000 (below the $505,000 phase-down, so the full cap applies)
• Home value: $1,000,000
• 2026 MFJ standard deduction: $32,200
• After deductions, taxable income lands in the 24% bracket, which for 2026 runs to $403,550 of taxable income for a couple

SALT Breakdown for 2026:

• State income tax: ~$27,000
• Property tax at roughly 2.1%: ~$21,000
• Total SALT paid: $48,000 — capped at $40,400

Other itemizable deductions:

• Mortgage interest: $18,000
• Charitable giving: $5,000

The step everyone skips: a deduction is only worth what it gives you above the standard deduction. You do not get the standard deduction and the itemized deductions; you pick one.

Under the old $10,000 cap:

• Itemized total: $10,000 + $18,000 + $5,000 = $33,000
• Standard deduction: $32,200
• The household itemizes by a margin of $800. Benefit over taking the standard deduction: $800 × 24% = $192.

Under the 2026 $40,400 cap:

• Itemized total: $40,400 + $18,000 + $5,000 = $63,400
• Standard deduction: $32,200
• Excess over standard: $31,200. Benefit: $31,200 × 24% = $7,488.

Additional federal tax saved by the OBBBA change: about $7,300/year.

That is a real and significant number. It is also roughly half of the "$10,500" you get from the common shortcut of multiplying the cap increase by a 35% bracket the household is not actually in. Two errors compound in that shortcut: it uses a top-of-the-scale marginal rate instead of the household's real one, and it ignores the standard deduction the household was already getting for free. Run your own version through the 2026 tax return estimator with itemizing on and off — the difference between those two totals is the entire value of the change to you, and nothing else is.

Income Phase-Outs and Limitations

An important question: does the SALT deduction phase out at high incomes? Yes. Any source telling you otherwise is describing a bill that was proposed, not the one that passed. Three separate limits stack:

1. The SALT phase-down itself. Above $505,000 of modified AGI in 2026, the $40,400 cap drops by 30% of the excess, floored at $10,000 — fully phased out by about $606,300. See the table above.

2. Alternative Minimum Tax (AMT). SALT is not merely limited under AMT; it is disallowed entirely. A household pushed into AMT gets no federal benefit from state and local taxes at all, which means the entire increase can be worth exactly zero to them. OBBBA also tightened the AMT exemption phase-out starting in 2026, pulling more households in the $500,000-plus range back into AMT range. If you are near that income and itemize heavily, this is the question to ask a CPA — before the December timing moves below, not after.

3. The standard deduction floor. You only benefit if you itemize. The 2026 standard deduction is $16,100 (single), $32,200 (MFJ) and $24,150 (head of household), with an additional $2,050 for a single filer aged 65 or older and $1,650 per qualifying spouse for a couple. Filers 65 and over also get the temporary OBBBA senior deduction of $6,000 per person (2025–2028), which phases out at 6% of MAGI above $75,000 single / $150,000 MFJ — and unlike SALT, that one is available whether you itemize or not. Every one of those figures raises the bar your itemized total has to clear before the SALT increase is worth a cent.

Should You Itemize or Take the Standard Deduction?

Itemize if:

• Your SALT plus mortgage interest, charitable giving and medical expenses above 7.5% of AGI exceeds $16,100 (single) or $32,200 (MFJ)
• You live in a high-tax state and own a home

Take the standard deduction if:

• Your itemizable deductions total less than the standard deduction
• You live in a no-income-tax state and have modest property tax
• You rent and have no mortgage interest to deduct

Quick Math for 2026:

Example 1 (California Homeowner, MFJ):

• SALT paid: $45,000 → capped at $40,400
• Mortgage interest: $8,000
• Charitable giving: $5,000
• Total itemized: $53,400 vs. standard deduction $32,200
• Decision: Itemize — $21,200 of deduction above the standard, worth $5,088 at a 24% marginal rate

Example 2 (Texas Homeowner, MFJ):

• SALT (property tax only, no state income tax): $12,000
• Mortgage interest: $6,000
• Charitable giving: $2,000
• Total itemized: $20,000 vs. standard deduction $32,200
• Decision: Take the standard deduction — the SALT increase is worth exactly $0 to this household

Example 2 is the common case, and it is why the SALT change is far narrower than the coverage suggests. Since the TCJA roughly doubled the standard deduction, only about one filer in ten itemizes at all. A larger SALT cap does nothing for the other nine.

When OBBBA's Higher Cap Disappears Entirely

The $40,400 cap is meaningful for most households that itemize, but for very high earners it is not merely a ceiling — the phase-down takes it away entirely:

Ultra-high-earner example (NYC):

• Modified AGI: $2,000,000
• Combined New York State and New York City income tax plus Manhattan property tax: well over $200,000
• SALT deduction available: $10,000

Read that last line twice. At $2,000,000 of MAGI this household is far past the end of the phase-down, so their 2026 cap is the old $10,000 floor — the increase to $40,400 is worth nothing to them. This is the design of the provision, not an oversight: OBBBA delivered the SALT relief to households roughly between $200,000 and $500,000 and deliberately clawed it back above that. The households with the largest state tax bills in the country are the ones who kept none of it.

Anyone in the $505,000–$606,300 band is in the worst position of all: they lose 30 cents of deduction per extra dollar earned, which at a 35% federal rate is an extra 10.5 points of effective marginal tax on that entire slice of income. If your compensation is variable — bonus, RSU vest, business income — moving income across the December 31 line to stay under $505,000 can be worth more than any other tax move you make that year.

Strategies to Maximize the SALT Deduction

1. Bunching Charitable Giving

Because the SALT cap is fixed but charitable giving is not, giving is the flexible variable you can concentrate into alternate years:

• Year 1: donate $20,000 + take the $40,400 SALT deduction = $60,400 itemized, versus a $32,200 standard deduction
• Year 2: give nothing and take the $32,200 standard deduction
• Over two years you deduct $92,600 instead of $64,400 for the same total giving

A donor-advised fund is how you do this without starving the charities: contribute two or three years of giving to the fund in Year 1, deduct it all immediately, and then grant it out on your normal schedule. One caution — OBBBA introduced a floor on the charitable deduction for itemizers beginning in 2026, so the first slice of your giving no longer counts. That makes bunching more valuable, not less, since a single large gift clears the floor once instead of being partly disallowed every year. Confirm the current-year mechanics with your preparer before writing the check.

2. The pass-through entity tax (PTET) — by far the largest lever

If you own an interest in an S corporation or a partnership, this is worth more than every other item on this list combined, and OBBBA left it intact after proposals to restrict it were dropped.

More than 35 states now let a pass-through entity elect to pay the state income tax on its business income at the entity level. The entity deducts that payment as an ordinary business expense on the federal return — where no SALT cap applies — and the owner gets a state credit for it. The state tax on business income is deducted federally in full, outside the $40,400 ceiling entirely.

For a business owner with $500,000 of pass-through income in a state with a 6% tax, that is $30,000 of state tax converted from capped-and-mostly-wasted into a fully deductible business expense. Two conditions: the election is usually annual and irrevocable, with a deadline that may fall in the first quarter of the tax year, and the entity must actually make the payment, not merely elect. Miss the date and there is no fix in April.

3. Timing of state tax payments

Because SALT is deducted in the year paid, you have real control. A fourth-quarter state estimated payment due in mid-January can be made in December instead, pulling the deduction one year earlier. Property tax billed for the next installment can often be paid early for the same reason.

The strategy has three failure modes, and each is common. It does nothing if you are already at the $40,400 cap before the extra payment — you are prepaying tax for zero deduction. It does nothing if the acceleration lands you in AMT, which disallows SALT outright. And prepaying a property tax that has not been assessed yet is not deductible at all; the IRS was explicit about this after the same scramble in December 2017.

4. Consider Your Filing Status

While the OBBBA cap is uniform across single/MFJ/HOH, it is halved to $20,200 for married filing separately, and the $505,000 phase-down threshold applies per return. Filing separately almost never wins on SALT alone, but a couple with very unequal incomes and a phase-down problem should have the return run both ways.

5. Move to a Lower-Tax State (Long-Term)

If SALT limits are a significant drag, relocating to a state with no income tax (FL, TX, NV, WA, WY, AK, SD, TN) removes the problem — but it is not the arithmetic most people run. High-tax states typically have higher wages, and no-income-tax states often recover much of the difference through property and sales tax. Compare the whole package, not the income tax line, with the cost of living comparator before treating a move as a tax strategy. And expect scrutiny: high-tax states audit claimed changes of domicile aggressively, and days-in-state records, voter registration and where your family actually sleeps matter far more than a mailing address.

Timeline and Retroactivity

The increase took effect for the 2025 tax year at $40,000 and is $40,400 for 2026, rising about 1% a year through 2029. Returns filed in spring 2026 (for 2025 income) already used the $40,000 cap; returns filed in 2027 will use $40,400. It is not retroactive to 2024 or earlier, which remain subject to $10,000. Absent new legislation, the cap reverts to $10,000 for tax year 2030 — this is a five-year window, not a permanent change.

One related point worth stating plainly, because this corpus has repeatedly got it wrong: the TCJA individual rate brackets did not expire. OBBBA made the 10/12/22/24/32/35/37 structure permanent. Any planning built on rates "reverting after 2025" is planning for something that did not happen. The SALT cap is the temporary piece here; the rates are not.

Key Takeaways

1. The 2026 cap is $40,400, not $40,000. The $40,000 figure was 2025. It indexes upward through 2029 and then reverts to $10,000 in 2030.

2. There is a phase-down, and it is steep. Above $505,000 of MAGI the cap falls 30 cents per dollar to a $10,000 floor, fully gone by about $606,300.

3. The deduction is worth the excess over the standard deduction, not the cap times your bracket. For the New Jersey household above, that is about $7,300 a year — real money, and roughly half what the common shortcut claims.

4. You must itemize, and only about one filer in ten does. With a 2026 MFJ standard deduction of $32,200, most households get nothing from this change.

5. If you own a pass-through business, the PTET election is worth more than everything else here — and it usually has a deadline early in the tax year, not at filing.

If you live in a high-tax state, own a home and earn between roughly $200,000 and $500,000, this is one of the most direct tax cuts in OBBBA. Above and below that band, it is worth much less than the headlines imply.

FAQ

Is the 2026 SALT cap $40,000 or $40,400?

$40,400. The $40,000 figure — the one in this article's title and in most coverage — was the 2025 amount. OBBBA set $40,000 for 2025 and then indexed the cap upward by about 1% a year: $40,400 for 2026, rising through 2029, then dropping back to $10,000 in 2030. Using the 2025 number on a 2026 return understates your deduction by $400.

I earn $600,000. Do I get the higher cap?

Almost none of it. The cap phases down by 30 cents for every dollar of modified AGI above $505,000, so at $600,000 your cap is about $12,000, and at $606,333 and above it is the old $10,000 floor. The band between $505,000 and $606,300 also carries a hidden marginal rate penalty of roughly 10.5 percentage points at a 35% federal rate. If your income is variable, keeping it under $505,000 in a given year is worth real money.

Does the higher cap help me if I take the standard deduction?

No — not one dollar. SALT is an itemized deduction, and you take either the standard deduction or your itemized total, never both. With the 2026 standard deduction at $16,100 single and $32,200 MFJ, your SALT plus mortgage interest, charitable gifts and medical expenses above 7.5% of AGI must clear that number before the increase is worth anything, and then it is worth only the amount by which you clear it, times your marginal rate.

Can I deduct my rental property's tax under the SALT cap?

You do not need to — and you should not want to. Property tax on a rental is an ordinary expense deducted in full on Schedule E, and property tax on business property goes on Schedule C. Neither is subject to the SALT cap. The cap applies only to taxes on personal-use property and to your personal state and local income or sales tax. Moving a property tax bill from Schedule E to Schedule A is a costly mistake, not a strategy.