The tax landscape for millions of Americans might be about to undergo a significant shift with proposed changes to the state and local tax (SALT) deduction cap.
These modifications could deliver substantial tax relief to certain taxpayers, particularly those in high-tax states who have felt the pinch since the 2017 Tax Cuts and Jobs Act (TCJA) limited the SALT deduction.
What’s changing with the SALT deduction?
The SALT deduction allows taxpayers who itemize to deduct state and local taxes — including income taxes and either sales taxes or property taxes — from their federal taxable income.
Before 2017, there was no limit on this deduction, but the TCJA capped it at $10,000, dramatically reducing its value for many Americans, especially those in states with higher tax burdens.
Under the One Big Beautiful Bill — which passed the House on May 22 and heads to the Senate next — the SALT deduction cap would increase fourfold to $40,000. This represents a significant shift in tax policy that would essentially reverse some of the TCJA’s impact.
The proposed legislation includes some important nuances:
- The $40,000 cap would gradually phase out for taxpayers with incomes over $500,000.
- For those with very high incomes, the cap would revert to the original $10,000.
- These thresholds will be indexed to increase by 1% annually.
- Taxpayers in the top 37% marginal tax bracket can only claim the SALT deduction at a 32% rate.
Who stands to benefit most?
Not everyone will see savings from these changes. The biggest winners appear to be:
- High-income earners: Those earning over $200,000, particularly in the top 20% of earners, would gain the most. These taxpayers are more likely to itemize deductions and tend to have state and local tax burdens exceeding the current $10,000 cap.
- Single filers: Single taxpayers may see particular advantages since their standard deduction is half that of married couples. This means more single filers with higher incomes or significant property taxes may find it beneficial to itemize.
- Residents of high-tax states: People living in states like California, New York, New Jersey, Illinois, and Maryland, where property taxes alone often exceed $20,000 annually, stand to see substantial benefits.
- Those with specific deduction profiles: Taxpayers with large mortgages at high interest rates, significant medical expenses, or charitable giving habits could find the higher SALT cap unlocks additional tax benefits by making itemizing worthwhile again.
Homeowners in high-tax areas may also want to revisit their mortgage and property tax strategy to better align with potential itemizing benefits under the proposed changes.
How this could revitalize charitable giving
One interesting side effect is that the proposed changes could breathe new life into charitable giving for tax purposes. With the higher SALT cap, the threshold for itemizing drops, making smaller charitable contributions tax-beneficial again.
For example, according to an article in TheStreet, a financial advisor cited a scenario where married clients with $20,000 in property taxes (currently limited to $10,000 in deductions) and $10,000 in mortgage interest would need to donate $10,000 to charity to reach the standard deduction—effectively getting no tax benefit from those donations.
Under the proposed rules, those same clients would start at the standard deduction level with just their SALT and mortgage interest deductions, meaning any additional charitable giving would yield tax savings.
Bundling expenses such as charitable donations or medical bills into a single year can help you exceed the standard deduction and make itemizing worthwhile.
Who’s left out?
Despite the significant increase in the cap, many Americans won’t see any change in their tax situation:
- Most senior couples, even with the higher standard deduction for seniors
- Middle-income earners who typically take the standard deduction
- Taxpayers whose combined state and local taxes don’t approach the current $10,000 cap
- Those whose incomes exceed the $500,000 phase-out threshold
If your deductible expenses are close to the standard deduction, tracking them throughout the year can help you plan more strategically and avoid missing out on potential savings.
A real-world example
Consider a retired couple, both 65, living in New York with $300,000 in household income. Under the proposal, their standard deduction would be $35,200, resulting in a federal tax bill of $51,146.
If they itemize with the proposed $40,000 SALT deduction, their total deduction increases by $4,800, reducing their tax bill to $49,994—a savings of $1,152.
However, the real value emerges when combined with other deductions. For example, a $20,000 charitable donation that previously wouldn’t have been deductible (because the combined SALT and charitable deductions wouldn’t exceed the standard deduction) now becomes valuable because they can itemize.
The political and practical outlook
While political motivations partly drove the SALT cap increase, specifically to please representatives from high-tax states like California, New York, and New Jersey, the impact for qualifying taxpayers could be significant.
The proposed changes essentially unlock itemized deductions that many taxpayers couldn’t previously use, particularly charitable contributions and mortgage interest, potentially resulting in meaningful tax savings for those who meet the criteria.
As the bill moves to the Senate, taxpayers in high-tax states and those with significant deductible expenses should watch closely and possibly consult with tax professionals to understand how these changes might affect their specific situation when filing taxes next year.
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