When filing your individual income tax return, one of the most important decisions is whether to claim the standard deduction or itemize deductions. Thanks to changes under the One Big Beautiful Bill Act (OBBBA), more taxpayers may benefit from itemizing on their 2025 returns.
If you paid more than $10,000 in state and local taxes (SALT) in 2025, the new rules could result in meaningful tax savings — even if the standard deduction has worked in your favor in recent years.
Standard Deduction vs. Itemizing
Taxpayers may either:
- Claim the standard deduction based on filing status, or
- Itemize deductions on Schedule A.
Itemizing makes sense when total deductible expenses exceed the standard deduction amount.
The OBBBA made permanent the expanded standard deduction originally introduced under the Tax Cuts and Jobs Act (TCJA) and slightly increased it for 2025:
- $15,750 for single filers and married filing separately
- $23,625 for heads of household
- $31,500 for married filing jointly
These amounts will continue to be adjusted annually for inflation.
Because of these higher standard deductions — combined with limitations on certain itemized deductions — many taxpayers have chosen the standard deduction in recent years. However, the updated SALT rules may change that calculation for 2025.
The Expanded SALT Deduction Limit
SALT deductions include:
- Property taxes (homes, vehicles, boats)
- Either state income tax or state sales tax (but not both)
Before 2018, eligible SALT expenses were generally fully deductible for taxpayers who itemized. The TCJA introduced a $10,000 annual cap ($5,000 for married filing separately), which significantly reduced deductions for many taxpayers.
That $10,000 cap was scheduled to expire after 2025.
Instead, the OBBBA temporarily increases the SALT cap beginning in 2025:
- $40,000 for most filers
- $20,000 for married filing separately
- The cap increases by 1% annually through 2029
- The $10,000 cap is scheduled to return in 2030
This fourfold increase could substantially reduce taxable income for affected taxpayers.
Example of Potential Savings
A married couple filing jointly in the 32% tax bracket with $40,000 in SALT expenses could save an additional $9,600 compared to the previous $10,000 cap:
32% × ($40,000 − $10,000) = $9,600
Income-Based Reduction for Higher Earners
The expanded SALT cap is subject to an income-based limitation.
For 2025:
- The phase-down begins at $500,000 of modified adjusted gross income (MAGI)
- The deduction is reduced by 30% of the amount MAGI exceeds the threshold
- At $600,000 MAGI, the cap effectively returns to $10,000
- Thresholds are halved for married filing separately
- Income thresholds increase by 1% annually through 2029
Example With Income Reduction
If MAGI exceeds the threshold by $20,000:
30% × $20,000 = $6,000 reduction
The allowable SALT deduction becomes $34,000 instead of $40,000.
Even with the reduction, this still exceeds the previous $10,000 limit and could produce significant tax savings.
Don’t Forget Other Itemized Deductions
Depending on your situation, SALT alone may push you above the standard deduction. If not, consider other itemized deductions, including:
Medical Expenses
Deductible only to the extent total qualified expenses exceed 7.5% of adjusted gross income (AGI).
Mortgage Interest
Interest on acquisition debt up to $750,000 remains deductible. Debt incurred before December 15, 2017, may qualify under the $1 million limit.
Charitable Contributions
Cash donations to qualified charities are generally deductible up to 60% of AGI for 2025. Additional limits apply to noncash donations.
Casualty and Theft Losses
For 2025, losses are generally deductible only if tied to a federally declared disaster. The deduction applies to losses exceeding 10% of AGI.
Each deduction has specific rules and limitations that must be reviewed carefully.
Could 2025 Be the Year You Itemize Again?
If you’ve claimed the standard deduction in recent years but have substantial SALT expenses, it’s time to reevaluate your strategy.
For some taxpayers, itemizing in 2025 could result in meaningful tax savings. For others already itemizing, the higher SALT limit may significantly increase deductions.
Your benefit will depend on:
- SALT expenses
- MAGI
- Filing status
- Tax bracket
- Other eligible itemized deductions
Careful planning is essential to maximize available tax benefits.
Next Steps
The SALT deduction increase — along with other OBBBA provisions — may meaningfully impact your 2025 return. Reviewing your projected deductions before filing can help ensure you claim every tax break available.
Contact a qualified tax professional to analyze how these changes apply to your specific situation.
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