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SALT Deduction Cap Calculator (2026)

Find your 2026 state-and-local-tax deduction limit after the income phase-down, and how much SALT you lose.

Tax & Payroll

Preparing your result…

What this calculator does

Shows the 2026 SALT deduction cap after phase-down.

What your result means

Deductible state and local taxes.

Formula

Cap = max(floor, $40,400 − 30% × max(0, MAGI − $505,000)); deductible SALT = min(taxes paid, cap)

The step-by-step working for your own numbers appears with the result above and in the PDF report.

Frequently asked questions

Symbols and assumptions

MAGI
Modified AGI
  • $40,400 cap, 30% phase-down above $505,000, $10,000 floor.

Sources and review

Reviewed 2026-09-23 · Next review 2027-01-15

  • Only relevant if itemizing.
  • Rules change annually.
  • Educational estimate, not tax advice.

Important limitation

This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.

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