SALT Deduction 2026: The $40,400 Cap, Who Saves, and the Hidden Phaseout Tax Trap

# SALT Deduction 2026: The $40,400 Cap, Who Saves, and the Hidden Phaseout Tax Trap

> **Quick answer:** The SALT deduction cap rises to $40,400 in 2026 under the One Big Beautiful Bill Act (OBBBA) — a massive increase from the $10,000 limit in place since 2018. Taxpayers with MAGI under $500,000 who live in high-tax states can claim the full deduction if they itemize. But a 30% phaseout between $500,000 and $600,000 MAGI creates a dangerous tax trap where earning $100,000 more actually increases your taxable income by $130,000. This temporary relief expires in 2030.

The SALT deduction cap has been the single most contentious provision of the Tax Cuts and Jobs Act since 2018 — and in 2026, it finally gets real relief. Under the OBBBA, the cap quadruples to $40,400, restoring billions in deductions for homeowners in New York, California, New Jersey, and other high-tax states. But the fine print contains a trap that every high earner needs to understand before filing.

*This article is for informational purposes only and does not constitute financial advice. Consult a qualified financial advisor for personal financial decisions.*

## What Is the SALT Deduction and Why Did It Matter So Much?

SALT — state and local taxes — covers the income taxes and property taxes you pay to your state and local governments. Before 2018, you could deduct all of them. Then the TCJA slapped a $10,000 cap on the deduction, effectively eliminating it for millions of homeowners in high-tax states who routinely paid $15,000, $30,000, or even $60,000 in combined state and property taxes.