Boston does not have a city income tax. If you live or work in Boston, your only income tax obligation runs to the Commonwealth of Massachusetts, which charges a flat 5% rate on most income through the Department of Revenue.1Mass.gov. Massachusetts Tax Rates There is no separate city return, no local surcharge, and no Boston-specific withholding line on your paycheck.
No City Income Tax in Boston
Massachusetts centralizes income taxation at the state level under General Laws Chapter 62, and cities and towns in the commonwealth lack the authority to levy their own income or earnings taxes.2General Court of Massachusetts. Massachusetts General Laws Chapter 62 – Taxation of Incomes Boston funds itself through property taxes, motor vehicle excise under Chapter 60A, and payments in lieu of taxes from its nonprofit institutions.3General Court of Massachusetts. Massachusetts General Laws Chapter 60A – Excise Tax on Registered Motor Vehicles in Lieu of Local Tax The city’s own tax page covers property, vehicle, boat, and personal property taxes only.4Boston.gov. Tax Information Support So when people search for a Boston income tax rate, the honest answer is that the number they want is the Massachusetts rate.
The Rates That Actually Apply
Most wages, salaries, tips, interest, and dividends are taxed at a flat 5%.1Mass.gov. Massachusetts Tax Rates Two important carve-outs change that number for specific situations.
Short-term capital gains, meaning profits on assets held one year or less, are taxed at 8.5% rather than 5%.1Mass.gov. Massachusetts Tax Rates This catches people selling stock on a short timeline or flipping property. Long-term gains on most assets stay at 5%.
High earners also face a 4% surtax on taxable income above an inflation-adjusted threshold. For tax year 2025, that threshold is $1,083,150.5Mass.gov. Massachusetts 4% Surtax on Taxable Income Income above the line is taxed at a combined 9% on wages and long-term gains, or 12.5% on short-term gains. A one-time event, such as selling a business or a large stock position, can put a filer into surtax territory for a single year.
Who Owes Massachusetts Income Tax
Your filing status depends on how Massachusetts classifies your residency.
Full-Year Residents
You are a full-year resident if you are domiciled in Massachusetts, or if you keep a permanent place of abode here and spend more than 183 days in the state during the tax year.6General Court of Massachusetts. Massachusetts Code Chapter 62 Section 1 – Definitions Domicile is your true, fixed, permanent home, and you can only have one at a time. If Massachusetts is your domicile, you owe tax on all your income regardless of where you earned it.
Part-Year Residents
If you moved into or out of Massachusetts during the year, you file as a part-year resident. You owe tax on everything received while you were a resident, plus any Massachusetts-source income received during the non-resident portion of the year.7Massachusetts Department of Revenue. 2025 Form 1-NR/PY Instructions
Non-Residents Commuting to Boston
Living in New Hampshire, Rhode Island, or Connecticut does not get you out of Massachusetts income tax if you work in Boston. Massachusetts has no reciprocity agreements with neighboring states, and non-residents owe tax on income from Massachusetts sources, including wages earned at a job in the state.8Mass.gov. 830 CMR 62.5A.1 – Non-Resident Income Tax If you split your workdays between Massachusetts and another state, your income is apportioned based on the days you physically worked in the state relative to total working days. A one-off business visit for a conference generally does not create a filing obligation.
Deductions and Credits That Matter in Boston
Massachusetts offers fewer deductions than the federal return, but a few move the needle for Boston filers.
Rent Deduction
If you rent your primary residence in Massachusetts, you can deduct 50% of your annual rent up to a maximum deduction of $4,000.9General Court of Massachusetts. Massachusetts Code Chapter 62 Section 3 – Taxable Income: Adjusted Gross Income Less Deductions and Exemptions Anyone paying more than $8,000 a year in rent maxes out the deduction, which covers most Boston tenants. You’ll need your landlord’s name and address to claim it.
Personal Exemptions
Personal exemptions reduce taxable income before the rate is applied: $4,400 for single filers, $6,800 for head of household, and $8,800 for married filing jointly.10Mass.gov. Massachusetts Personal Income Tax Exemptions
No-Tax Status
Low earners owe nothing. Single filers with Massachusetts AGI under $8,000, heads of household under $14,400, and joint filers under $16,400 qualify for no-tax status, with heads of household and joint filers getting an additional $1,000 threshold increase per dependent.11Mass.gov. Massachusetts No Tax Status and Limited Income Credit
Earned Income Tax Credit
Massachusetts matches 40% of the federal Earned Income Tax Credit.12Mass.gov. Massachusetts Earned Income Tax Credit (EITC) A $3,000 federal EITC means an additional $1,200 from the state. It is refundable, so it can generate a refund even if you owe no tax.
Child and Family Tax Credit
For tax year 2024 and beyond, Massachusetts provides a $440 credit for each qualifying dependent, with no cap on the number you can claim. Qualifying dependents include children under 13, disabled dependents or spouses, and dependents age 65 or older. Married couples filing separate returns cannot claim this credit.13Mass.gov. Massachusetts Child and Family Tax Credit
Filing Your Massachusetts Return
Full-year residents file Form 1. Part-year residents and non-residents file Form 1-NR/PY. Both are available on the Department of Revenue website.14Massachusetts Department of Revenue. 2025 Massachusetts Personal Income Tax Forms and Instructions Before you start, pull together your W-2s, any 1099s for interest, dividends, freelance income, or capital gains, and Form 1099-HC proving health insurance coverage under the state’s insurance mandate.15Mass.gov. 1095-B and 1099-HC Tax Form If you’re claiming the rent deduction, have your landlord’s name, address, and the total rent you paid.
The filing deadline is April 15, 2026.16Mass.gov. Massachusetts DOR Tax Due Dates and Extensions E-filing through MassTaxConnect or commercial software is the fastest route and produces a confirmation number immediately.17Massachusetts Department of Revenue. Filing Returns in MassTaxConnect Electronic filers typically see refunds in four to six weeks; paper returns take eight to ten.18Massachusetts Department of Revenue. Your Personal Income Tax Refund Payments go through MassTaxConnect or by check with Form PV, the state payment voucher.19Mass.gov. 2025 Form PV Massachusetts Income Tax Payment Voucher
Extensions
Massachusetts grants an automatic six-month extension to file, but only if you pay at least 80% of your total tax liability by April 15.20Mass.gov. File an Extension and Pay MA Personal Income, Fiduciary, or Partnership Tax An extension to file is not an extension to pay, and any unpaid balance accrues interest from the original due date. A federal extension does not automatically extend your Massachusetts deadline; you file separately with the state. If your return shows no tax due, Massachusetts automatically grants an extension to October 15 without any filing.
Estimated Payments
If you have income not subject to withholding, such as freelance earnings or investment gains, and you expect to owe more than $400, you must make quarterly estimated payments.21Massachusetts Department of Revenue. Massachusetts DOR Personal Income and Fiduciary Estimated Tax Payments You generally need to cover at least 80% of your annual liability through withholding and estimated payments combined. Fall short and you face an underpayment penalty at the federal short-term interest rate plus four percentage points, compounded daily.
Late Filing and Late Payment Penalties
Missing the deadline triggers two separate penalties, each charging 1% per month on the unpaid balance up to a maximum of 25%.22Mass.gov. Massachusetts Penalties and Interest Assessed by DOR The failure-to-file and failure-to-pay penalties run independently. File three months late and still owe, and you could face 3% for late filing plus 3% for late payment, a combined 6% hit before interest. Filing on time and requesting a payment plan is almost always the better move.