The SALT deduction cap increased to $40,000 in 2026 -- who actually benefits from this change?

The One Big Beautiful Bill Act (OBBA) raised the SALT (state and local tax) deduction cap from $10,000 to $40,000 for tax years 2025 through 2029. The cap then rises 1% per year through 2029 before reverting. For married couples filing separately, the limit is $20,000.

Who benefits most:

• Homeowners in high-tax states like California, New York, New Jersey, Connecticut, and Illinois. If your combined state income tax, local income or sales tax, and property taxes exceed $10,000 -- which is easily hit in these states -- you now have room to deduct more.
• High earners who itemize: If your itemized deductions (mortgage interest + charitable contributions + SALT + other) exceed the standard deduction ($15,000 single / $30,000 married filing jointly in 2026), you benefit from the higher cap.
• Homeowners with large property tax bills: A single-family home in suburban New Jersey or Long Island can easily generate $15,000-$25,000+ in property taxes alone.

Who does NOT benefit:

• Taxpayers who take the standard deduction: If your total itemized deductions don't exceed the standard deduction, the SALT cap increase is irrelevant to you. The majority of U.S. taxpayers still take the standard deduction.
• Moderate earners in low-tax states: If your SALT bill is already under $10,000, the new cap changes nothing.
• Very high earners: There is a phase-out. For taxpayers with MAGI above $500,000 (single) or $600,000 (married), the $40,000 cap phases down, potentially back to the old $10,000 limit at the top end. This was a compromise to prevent the benefit from flowing primarily to the ultra-wealthy.

Practical example: A married couple in New Jersey pays $22,000 in property taxes and $18,000 in state income taxes. Under the old cap, they could only deduct $10,000. Under the new cap, they can deduct up to $40,000 -- potentially worth $6,000-$9,000 in federal tax savings depending on their bracket.