Tools · State Income Tax
Massachusetts Income Tax Calculator (2026)
Estimate your Massachusetts state income tax for 2026. Enter your taxable income and filing status to see what Massachusetts taxes and your effective state rate, broken out line by line.
Massachusetts state income tax calculator
- Taxable income entered
- $75,000
- Personal exemption
- −$4,400
- Income taxed by Massachusetts
- $70,600
- Massachusetts income tax
- $3,530
Massachusetts taxes most income at a flat 5%, plus a 4% surtax on the portion of taxable income above $1,107,750 (2026) — a combined 9% at the top.
State figures: Massachusetts Department of Revenue.
Estimate for 2026 state income tax only, based on annual tax brackets — it excludes federal income tax, Social Security and Medicare, local taxes, and any credits. This is general information, not tax advice.
How Massachusetts income tax is figured
Massachusetts applies a single flat rate to your taxable income (after any state deduction or exemption). Massachusetts taxes most income at a flat 5%, plus a 4% surtax on the portion of taxable income above $1,107,750 (2026) — a combined 9% at the top.
This estimate covers state income tax only — it does not include federal income tax, Social Security and Medicare, or tax credits. It is an annual-bracket estimate, not your final return. This is general information, not tax advice.
Income tax calculators for other states
Same 2026 engine, each with its own state rules.