Massachusetts State Tax Calculator 2026
Estimate your Massachusetts state income tax and take-home pay for tax year 2026.
Last updated: November 2025 · Source
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Massachusetts 2026 tax overview
Flat 5% on most income + 4% Fair Share surtax above $1,107,750 (constitutionally indexed), effective 9% above threshold.
Breakdown
Frequently Asked Questions
What are the 2026 Massachusetts income tax rates?
Massachusetts uses a 2-bracket progressive schedule with rates from 5.00% to 9.00%. Flat 5% on most income + 4% Fair Share surtax above $1,107,750 (constitutionally indexed), effective 9% above threshold.
What is the 2026 Massachusetts standard deduction?
For 2026, Massachusetts allows a state standard deduction of $0 for single filers and $0 for married filing jointly.
Does Massachusetts tax Social Security benefits?
Tax treatment of Social Security varies by state. Massachusetts's rules can change year-to-year, check the Massachusetts Department of Revenue for the most current guidance.
What is the difference between federal and Massachusetts state income tax?
Federal tax is collected by the IRS at uniform rates nationwide (10%-37%). Massachusetts state tax is separate, with its own brackets and rules. Total income tax burden = federal + state combined.