1099 Tax Calculator for Massachusetts Freelancers
Massachusetts applies a 5% flat state income tax on most income, with a 9% surtax on income over $1 million. Combined with the 15.3% self-employment tax and federal income tax, a Massachusetts freelancer earning $100,000 in net business income can expect to pay roughly $4,000-$5,000 in state income tax.
Massachusetts has a robust set of business expense deductions that align closely with federal rules, making it easier to reduce your taxable income through proper expense tracking.
Use our free 1099 tax calculator to estimate your total tax liability as a Massachusetts freelancer.
Massachusetts Tax Quick Facts
- State income tax rate: 5%-9%
- Tax structure: 5% on most income, 9% on income over $1M
- Quarterly state payments: Required if you expect to owe $400+ in MA state tax
Frequently Asked Questions
What is the Massachusetts state tax rate for 1099 contractors?
Massachusetts has a 5% flat tax on most income, with a 9% rate on income over $1 million.
Do MA freelancers need quarterly state tax payments?
Yes, if you expect to owe $400 or more in MA state tax.
Does Massachusetts conform to the QBI deduction?
Massachusetts does not conform to the federal QBI deduction.
Data source: IRS 2026 tax brackets and Massachusetts state revenue department. Last reviewed: 2026-07-05.