SALT Deduction Limit 2026: $40,400 Cap and Phaseout Guide

Quick answer: The 2026 SALT deduction is generally limited to $40,400, or $20,200 for married filing separately. The increased limit begins to shrink when modified adjusted gross income exceeds $505,000, or $252,500 for married filing separately, and it cannot fall below $10,000 or $5,000 respectively. SALT is an itemized deduction on Schedule A, so it helps only when itemizing produces a better federal result than the standard deduction.

2026 SALT limits at a glance

These numbers are limits, not automatic deductions. If a taxpayer pays $14,000 of qualifying SALT and itemizes, the starting deduction is generally $14,000—not $40,400. If qualifying payments total $60,000, the starting federal deduction is limited to the applicable cap before other return-level restrictions.

What counts as state and local tax?

The SALT category combines several Schedule A lines under one shared federal ceiling. It generally includes state and local income taxes or general sales taxes, state and local real estate taxes on personally owned property, and personal property taxes that meet federal requirements.

The income-tax side can include amounts withheld from wages and certain information returns, timely estimated payments and qualifying payments made with a prior-year state return during 2026. A later state refund may create separate federal reporting questions, particularly when an earlier deduction produced a tax benefit.

Real estate taxes generally must be imposed on property you own, based on assessed value and charged uniformly for general public purposes. A bill can include nondeductible items such as trash collection, water service, transfer charges or a specific local improvement assessment. Do not copy the full escrow disbursement or county bill without separating the qualifying tax.

Personal property tax is usually deductible only when it is based on value and imposed annually. A vehicle-registration bill based partly on value and partly on weight may have only a deductible value-based portion.

Income tax or sales tax: you must choose

Schedule A lets an itemizer claim state and local income tax or state and local general sales tax—not both. Income tax is often the larger amount for residents of states with meaningful wage taxes. Sales tax can be more relevant in states without an individual income tax or in a year with a large taxable purchase.

For sales tax, federal rules may allow actual receipts or an IRS table method, with qualifying additions for certain specified purchases. Actual-expense substantiation means keeping records. A credit-card total is not automatically the deductible sales-tax amount, and business purchases belong with the applicable business rules rather than Schedule A.

Compare both methods before filing. The election changes one component inside the same $40,400 ceiling; it does not create a separate $40,400 allowance for income tax and another for property tax.

You must itemize to receive a federal SALT benefit

The increased cap does not mean every homeowner gets a larger refund. SALT is valuable only as part of total itemized deductions. For 2026, the basic standard deduction is $16,100 for single filers and married filing separately, $32,200 for married filing jointly, and $24,150 for heads of household.

Example: A married couple filing jointly has $18,000 of deductible SALT, $9,000 of deductible mortgage interest and $2,000 of deductible charitable contributions after applying all rules. Their simplified itemized total is $29,000. Because that is below the $32,200 basic standard deduction, the SALT payments alone do not make itemizing better.

If the same couple instead has $28,000 of deductible SALT and $12,000 of other allowed itemized deductions, the simplified total is $40,000. Itemizing may then exceed the standard deduction by $7,800. The federal tax effect is tied to that incremental deduction and applicable marginal rates—not the full $40,000 of itemized expenses.

Use the 2026 tax brackets and standard deduction guide for the filing-status amounts and marginal-rate mechanics.

How the high-income phaseout works

The IRS states that the increased 2026 limit is reduced when modified adjusted gross income exceeds $505,000, or $252,500 for married filing separately. It does not fall below the legacy-style floor of $10,000, or $5,000 for married filing separately.

MAGI can differ from the AGI visible at first glance when a return includes foreign earned income exclusions, certain U.S. territory income or other adjustments specified in the form instructions. Taxpayers near the threshold should use the official State and Local Tax Deduction Worksheet rather than applying the headline cap manually.

A second overall limit on certain itemized deductions can also affect higher-income 2026 taxpayers after provision-specific limits. Because several calculations can stack, the allowable Schedule A total may not equal a simple sum of receipts. Avoid estimating a large withholding change from the SALT cap alone.

Property taxes paid through mortgage escrow

Monthly escrow deposits are not necessarily deductible when deposited. The relevant amount is generally the qualifying real estate tax the mortgage servicer actually pays to the taxing authority during the tax year. The annual escrow statement can help reconcile deposits, disbursements and any balance adjustment.

At a home purchase or sale, the closing disclosure can allocate property taxes between buyer and seller. Federal treatment depends on the tax period and contractual allocation, not simply which party mailed the check. Retain the closing disclosure, county tax bill and proof of payment.

Special assessments for sidewalks, sewers or other property-specific improvements are generally not deductible SALT, though they may affect the property's tax basis. Charges for maintenance or repair can follow different rules. A county statement labeled “tax bill” can therefore contain several federal categories.

SALT and mortgage-interest planning

Homeowners frequently evaluate SALT with deductible mortgage interest because both can appear on Schedule A. They remain separate deductions with separate tests. Mortgage interest depends on debt use, acquisition-debt limits, secured-property rules and documentation; it does not consume the SALT cap.

Use the 2026 mortgage interest deduction guide for those rules. If you are estimating whether a future purchase will make itemizing worthwhile, run the payment through the mortgage calculator and obtain a lender's actual amortization schedule. The entire monthly payment is never a federal deduction.

2026 SALT recordkeeping checklist

1. Collect Forms W-2 and information statements showing state and local withholding.
2. List 2026 estimated-tax and extension payments by actual payment date.
3. Reconcile mortgage escrow statements with property-tax disbursements.
4. Separate value-based personal property tax from registration or service fees.
5. Choose state income tax or general sales tax after calculating both methods.
6. Exclude taxes already deducted on Schedule C, E, F or another form.
7. Compare total allowed itemized deductions with the correct standard deduction.
8. Use the official MAGI worksheet when income is near or above the phaseout threshold.

Do not prepay a future tax merely to chase a deduction without confirming that the tax has been assessed, that federal timing rules permit it and that itemizing creates an actual benefit. Cash-flow, alternative minimum tax and state consequences can outweigh the expected federal savings.

Official sources

• IRS: corrected 2026 SALT limit and MAGI thresholds
• IRS Publication 505 (2026): withholding, itemized-deduction and SALT updates
• IRS draft 2026 Schedule A: SALT reporting lines
• IRS Topic 503: deductible state and local taxes

Frequently asked questions