For tax year 2025, the deduction for state and local taxes (SALT) — including state and local income, sales, and property taxes — is subject to an overall limit. This limit has been increased to $40,000 for single filers and $20,000 for married couples filing separately. However, if your modified adjusted gross income (MAGI) exceeds $500,000 ($250,000 if married filing separately), the limit is reduced, though it cannot go below $10,000 ($5,000 if married filing separately).
Why the Limit Applies
- Combined Tax Cap: The SALT deduction is capped at $40,000 ($20,000 if married filing separately) for 2025. This means even if you paid more than that in state and local taxes, you can only deduct up to the limit.
- Income-Based Reduction: If your MAGI exceeds $500,000 (or $250,000 if married filing separately), your deduction limit is reduced. However, it will never drop below $10,000 ($5,000 if married filing separately).
- Applies to All SALT Taxes: The limit applies to the combined total of state and local income taxes, sales taxes, and property taxes reported on Schedule A (Form 1040), lines 5a, 5b, and 5c.
How Does This Affect My Tax Return?
If you paid $12,000 in SALT, you can only deduct $10,000. The remaining $2,000 is not deductible on your federal return. This may increase your taxable income and potentially your tax liability.
Where to Report
The deduction is claimed on Schedule A (Form 1040), specifically on lines 5a (state and local income tax), 5b (real property taxes), and 5c (state and local sales tax). The total of these lines cannot exceed the SALT deduction limit for your filing status and income level.
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Disclaimer: Always verify details with the most current Federal or State Department of Revenue Forms and Instructions. For complex situations, consult a tax professional or attorney.