SALT Cap 2025 Would Rise to $40,000 Under House Tax Bill
The SALT cap 2025 could rise from $10,000 to $40,000 under legislation passed by the House of Representatives, significantly expanding the federal deduction for state and local taxes. The proposal would apply to tax years 2025 through 2029 and primarily affect taxpayers who itemize deductions, particularly those in high-tax states. The measure now awaits Senate consideration and has not yet been enacted into law.
The House-passed bill would substantially increase the SALT deduction cap, which limits the amount of state and local taxes that taxpayers can deduct when calculating their federal income tax. Under the proposal, eligible taxpayers could deduct up to $40,000 in combined state and local taxes paid during the year, compared with the current $10,000 limit.
The expanded SALT deduction would apply to state income taxes or, if chosen instead, sales tax, as well as local property taxes. Joint filers, single filers, heads of household, and qualifying surviving spouses would all be subject to the same $40,000 deduction cap. Taxpayers who file as married filing separately would face a lower limit of $20,000.
The bill also includes an inflation adjustment, meaning the deduction cap would rise slightly each year after 2025. The higher SALT deduction limit would remain in effect through 2029 before reverting to current-law levels unless Congress extends it.
While the proposal expands the SALT cap, it includes income-based limitations designed to narrow the benefit for higher earners. Taxpayers with modified adjusted gross income above $500,000, or $250,000 for married filing separately, would see their available SALT deduction reduced.
The income phaseout would apply at a 30 percent rate, gradually reducing the deduction cap as income exceeds the threshold. Even with the phaseout, however, the deduction cannot fall below the existing $10,000 federal SALT cap. These income thresholds aim to limit the cost of the tax break while still expanding relief for many middle- and upper-middle-income households.
The proposal does not change Alternative Minimum Tax rules, including the current AMT exemption amounts. Taxpayers subject to the Alternative Minimum Tax would still need to consider how state and local taxes affect their overall tax liability under existing AMT calculations.
Only taxpayers who itemize deductions would benefit from a higher SALT cap. The deduction is claimed on Schedule A of Form 1040, alongside other itemized deductions such as mortgage interest and charitable contributions. Taxpayers who take the standard deduction cannot separately deduct state and local taxes.
Eligible taxes include state income taxes withheld from W-2 employees, estimated payments made by self-employed taxpayers, and state and local sales tax if that option is chosen instead of income taxes. Local property taxes on primary residences, second homes, and certain land holdings also count toward the SALT deduction limit, provided the taxes are assessed annually and paid during the tax year.
With the standard deduction set at $31,500 for joint filers and $15,750 for single filers in 2025, the expanded SALT deduction is likely to benefit homeowners with significant property tax burdens or taxpayers with higher state income tax liabilities.
The state and local tax deduction has existed in some form for more than a century, allowing taxpayers to deduct certain taxes paid to state and local governments from their federal taxable income. The deduction became a major point of contention after the Tax Cuts and Jobs Act imposed a $10,000 cap on SALT deductions beginning in 2018.
Lawmakers from high-tax states such as New York, New Jersey, and California argued that the cap disproportionately affected their residents, many of whom pay high state income taxes and local property taxes. Supporters of the cap countered that it helped finance broader federal tax cuts and reduced the benefit of federal deductions for higher-income households.
Since then, multiple House bills have sought to raise or repeal the federal SALT cap, but none have been enacted. The current proposal, included in a broader House budget and tax package, represents the most significant attempt to expand the SALT deduction since the Trump tax cuts were enacted.
The House-passed legislation does not modify existing rules for pass-through entity taxes, commonly referred to as PTET elections. These rules permit certain pass-through entities to deduct state income taxes at the entity level, thereby reducing federal tax liability for their owners. Those entity-level deductions remain separate from the individual SALT deduction claimed on Schedule A.
The bill also leaves unchanged other major itemized deductions, including the mortgage interest deduction and the rules for charitable contributions. Taxpayers would still need to compare itemized deductions with the standard deduction each year to determine which option results in a lower federal tax bill.
Tax policy experts say the expanded SALT deduction would deliver meaningful relief to taxpayers who have consistently exceeded the $10,000 cap since 2018, particularly homeowners in high-tax jurisdictions.
“The increase would restore a larger portion of the state and local tax deduction that the Tax Cuts and Jobs Act effectively limited,” said an analyst familiar with Joint Committee on Taxation estimates. The analyst noted that the income phaseout would reduce the benefit for the highest earners but would not eliminate it.
Fiscal analysts have also raised concerns about the revenue impact. The Congressional Budget Office has previously estimated that expanding the SALT deduction could reduce federal revenue over the budget window unless offset by other tax increases or spending cuts.
For now, the expanded SALT cap remains a proposal rather than settled law. Taxpayers should continue planning under existing SALT deduction rules while monitoring legislative developments in the Senate.
If enacted, taxpayers who itemize would be required to maintain detailed records of state income taxes, sales tax elections, property taxes, and estimated payments made throughout the year. Those close to the standard deduction threshold may also want to reassess whether itemizing deductions produces a lower federal income tax liability.
Any final version of the bill must pass the Senate and be signed by the president before taking effect. Until that happens, the 2025 SALT cap increase remains uncertain, although it signals renewed congressional attention to the role of state and local taxes in the federal tax code.
By William Mc Lee, Editor-in-Chief & Tax Expert—Get Tax Relief Now
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