Massachusetts charges a flat 5% income tax on most earnings

Massachusetts has a flat state income tax rate of 5% on wages, salaries, and most other income. This means whether you earn $30,000 or $300,000 per year, the state takes the same percentage. The rate applies to residents and anyone working in Massachusetts, regardless of where they live.

The 5% rate has been in place since 2001. Massachusetts does not use tax brackets that increase with income the way the federal government does. This simplicity means your state tax calculation is straightforward: take your taxable income, multiply by 0.05, and that is what you owe Massachusetts.

Some types of income are taxed at different rates or not taxed at all. Capital gains, dividends, and certain other investment income are taxed at 5.1% instead of 5%. Interest income and certain other categories may have their own rules.

Key Takeaways

  • Massachusetts taxes most wage income at a flat 5% rate, with no income brackets or higher rates for higher earners.
  • Investment income like capital gains and dividends is taxed at 5.1%, slightly higher than wage income.
  • Certain income types—including some retirement distributions and municipal bond interest—are exempt from Massachusetts state tax.
  • You file your state taxes using Form 1040-MA if you are a resident, and the state uses your federal return as the starting point.
  • Tax withholding from your paycheck is based on the W-4 form you file with your employer, and you can adjust it anytime.

What counts as taxable income in Massachusetts

Massachusetts taxes wages, salaries, tips, and self-employment income. If you work for an employer, they withhold state tax from each paycheck based on the information you provide on your W-4 form. If you are self-employed, you pay state tax when you file your return.

Interest and dividend income are taxable at the 5.1% rate. Rental income, business income, and income from partnerships or S-corporations are also subject to state tax. Gambling winnings are taxable in Massachusetts, though you can deduct gambling losses up to the amount of your winnings.

Some income is not taxed by Massachusetts. Retirement distributions from IRAs and 401(k)s are exempt from state tax, as long as you are over 59½ or meet other conditions. Interest from U.S. Treasury bonds and municipal bonds issued in Massachusetts are also exempt. Social Security benefits are not taxed by the state.

How to file your Massachusetts state return

Most residents file using Form 1040-MA, the Massachusetts resident income tax return. You can file on paper or electronically through the Massachusetts Department of Revenue website. The state accepts returns filed through most major tax software programs and tax preparation services.

Your federal return is the foundation for your state return. You start with your federal adjusted gross income and then make adjustments specific to Massachusetts law. Some deductions allowed federally are not allowed in Massachusetts, and vice versa. The form walks you through these adjustments step by step.

The filing important date is the same as the federal important date: April 15 of the following year, or the next business day if April 15 falls on a weekend. If you need more time, you can request an extension, which gives you until October 15 to file. An extension to file is not an extension to pay—taxes owed are still due by April 15.

Tax withholding and adjusting your paycheck

When you start a job in Massachusetts, you fill out a W-4 form that tells your employer how much state tax to withhold from each paycheck. The amount depends on your filing status, the number of dependents you claim, and other income in your household. Your employer sends the withheld amount to the state on your behalf.

You can change your withholding anytime by submitting a new W-4 to your employer. If you are having too much withheld, you will get a refund when you file your return. If too little is withheld, you will owe when you file. Many people adjust their withholding in the fall if they realize they are off track for the year.

Self-employed people do not have withholding. Instead, you pay estimated taxes quarterly—on April 15, June 15, September 15, and January 15. These payments are based on your expected income for the year. If your income changes, you can adjust your next quarterly payment.

Deductions and credits available to Massachusetts residents

Massachusetts allows a standard deduction, which is the amount of income you can earn without owing state tax. The standard deduction amount depends on your filing status and age. For the 2024 tax year, the standard deduction ranges from about $4,400 to $7,100 depending on whether you are single, married, or over 65.

If your itemized deductions are larger than the standard deduction, you can itemize instead. Massachusetts allows deductions for state and local taxes (up to $10,000 combined), mortgage interest, charitable contributions, and medical expenses above a certain threshold. The rules are similar to federal itemization but with some differences.

Massachusetts also offers tax credits for certain situations. The Earned Income Tax Credit (EITC) is available to low-income workers and is calculated based on your federal EITC. There is also a dependent exemption credit, a child and dependent care credit, and credits for property taxes or rent paid by seniors and disabled people.

Special situations: part-year residents and non-residents

If you moved to or from Massachusetts during the year, you are a part-year resident. You file Form 1040-MA and report only the income you earned while living in Massachusetts. You may also owe tax to another state for income earned there. Some states have reciprocal agreements with Massachusetts to avoid double taxation.

Non-residents who work in Massachusetts must pay state tax on income earned in the state, even if they live elsewhere. This includes wages, self-employment income, and business income. Non-residents file Form 1040-NR. If you live in a state that also taxes the same income, you may be able to claim a credit on your home state return to avoid paying tax twice on the same money.

Frequently Asked Questions

Does Massachusetts tax retirement income?

Distributions from IRAs and 401(k)s are not taxed by Massachusetts if you are over 59½ or meet other conditions. Pension income is also exempt. However, interest and dividends earned inside these accounts are taxed when withdrawn if they do not meet the age requirement. Social Security is not taxed by the state.

What if I work in Massachusetts but live in another state?

You owe Massachusetts tax on the income you earn in the state. You file Form 1040-NR with Massachusetts and report your Massachusetts wages. You also file a return in your home state. Many states have agreements to prevent taxing the same income twice, so check your home state's rules or consult a tax professional.

Can I deduct property taxes or rent on my Massachusetts return?

Property taxes are deductible if you itemize, up to $10,000 combined with state income and sales taxes. Rent is not deductible on your income tax return, but Massachusetts offers a separate rent credit for low-income renters and seniors. You file a separate form to claim the rent credit.

What happens if I do not file a Massachusetts return?

If you owe tax and do not file, the state can assess penalties and interest on the unpaid amount. If you are owed a refund and do not file, you have three years to claim it before the refund is forfeited. If you think you do not owe tax, filing anyway protects your refund rights.

How do I know if I have to file a Massachusetts return?

You must file if your income exceeds the standard deduction for your filing status. Even if you do not owe tax, filing may get you a refund of withheld taxes or allow you to claim credits. The Massachusetts Department of Revenue website has a filing requirement worksheet to help you decide.