Massachusetts State Income Tax Filing

Massachusetts income tax at a glance

Massachusetts taxes most income at a flat 5%, with a surtax that lifts the rate to 9% on the portion of income above roughly $1.08 million. That threshold is indexed and it is measured on total taxable income for the year, which means a single event — selling a company, a house with a large gain, or a big equity vest — can push an otherwise ordinary year over the line even though your salary is nowhere near it. Massachusetts also grants no standard deduction, relying on a personal exemption and a set of specific deductions instead, and it treats several categories of income under their own rules rather than following the federal treatment. For the large population of students, researchers and visa-holding professionals in the Boston area, the part-year and non-resident mechanics on Form 1-NR/PY matter as much as the rate.

Massachusetts tax rates

Personal exemption

$4,400 single, $8,800 joint, $1,000 per dependent

Rates and thresholds as of January 1, 2026. State legislatures change these mid-year and several states index brackets annually — check against Massachusetts Department of Revenue before relying on a figure.

What to watch out for in Massachusetts

• The surtax threshold is measured on annual taxable income including capital gains, so a one-off sale can trigger it in a year when your recurring income would not. Timing a large disposal across two tax years is a real planning point in Massachusetts.
• The surtax threshold is indexed annually, so the figure moves. It applies to the amount above the threshold, not to your whole income.
• Massachusetts does not follow federal treatment on every category of income and has its own rules for certain short-term capital gains and interest. Carrying federal figures straight across is not reliable.
• Massachusetts and its neighbours generate a lot of cross-border filing. Working in one New England state while living in another routinely means two returns plus a resident credit.

Selling an Indian property can trigger the Massachusetts surtax, with no credit for the Indian tax

Massachusetts grants residents a credit for tax due to another jurisdiction, and the statute says exactly which jurisdictions those are: any other state, territory or possession of the United States, or the Dominion of Canada or any of its provinces. Canada is named specifically, which tells you the drafters did consider foreign jurisdictions and chose to include precisely one. India is not on the list, so Indian tax on NRO interest, Indian rent or an Indian capital gain earns no Massachusetts relief.

That combines with a feature unique to Massachusetts among these ten states. The 4% surtax is measured on total taxable income for the year including capital gains, so it is triggered by the size of the year rather than the size of your salary. A flat in Mumbai or Bengaluru bought years ago and sold now can produce a gain large enough on its own to carry an otherwise ordinary year over the threshold — at which point the portion above it is taxed at 9%, and the Indian tax paid on the same gain reduces the Massachusetts bill by nothing.

• The surtax threshold counts capital gains, so a single Indian property or share disposal can reach it even when recurring income is far below.
• It applies to the amount above the threshold, not to your whole income — so the question is how much of the gain lands above the line, which is what makes timing matter.
• The threshold is indexed annually, which is why we do not treat the current figure as fixed.
• Splitting a disposal across two tax years can keep both parts below the threshold. Whether that is achievable depends on the Indian sale mechanics, not the US ones.
• Massachusetts does not follow federal treatment for every category of income, so PFIC inclusions and foreign interest should be reviewed against Massachusetts rules rather than carried across from the federal return.

The Boston area has a very large population of Indian students, postdocs and researchers, and for them the more common issue is the residency mismatch rather than the surtax. Massachusetts sets its own residency rules and does not apply the federal substantial presence test, so being a non-resident alien federally and a Massachusetts resident for state purposes in the same year is normal rather than contradictory — and the Article 21(2) treaty deduction that helps the federal return has no Massachusetts counterpart.

If an Indian property sale is in prospect and you are a Massachusetts resident, the planning window is before the sale completes. Afterwards there is nothing left to arrange, and the surtax is the part people find out about too late.

Go deeper on the India side

These guides cover the federal treatment of Indian income and assets in detail. They apply wherever you live in the US — Massachusetts sits on top of them.

• Indian Rental Income on a US ReturnYou declared the rent in India and paid Indian tax on it, so it feels handled. But India’s flat 30% deduction does not exist in the US, depreciation is mandatory here, and Indian property cannot use the 27.5-year period every calculator defaults to.
• The Foreign Tax Credit and Form 1116The mechanism that actually stops you being taxed twice — and it does not work evenly. NRE interest is fully taxable in the US with no credit at all, because India exempted it. Plus the April-March year mismatch nobody warns you about.
• Indian Mutual Funds and the PFIC ProblemPFIC status turns on the US income and asset tests applied to the fund — tests a pooled vehicle holding securities will often meet. What that means for your SIPs, why the default regime is the punitive one, why the QEF election is usually closed to you, and how many Form 8621s you may owe.
• The India-US Tax TreatyIt does not stop the US taxing your Indian income — a saving clause preserves that. What the treaty really provides, why the foreign tax credit is the actual mechanism, and the one benefit that is unique to India.
• Selling Property in IndiaThe gain arises on the sale, not when you bring the money over. How the dollar basis puts exchange movement inside your gain, why India’s indexation gives you nothing here, and the home-sale exclusion that can reach an Indian flat — for about three years after you move out.

Forms and deadlines

Which form

Form 1 for residents, Form 1-NR/PY for non-residents and part-year residents

Deadline

Aligns with the federal deadline, subject to Massachusetts state holidays.

State authority

Massachusetts Department of Revenue

Federal deadlines are separate from state ones. Our US tax deadlines page covers the federal calendar, and the federal tax brackets apply on top of whatever Massachusetts charges.

Want the arithmetic done for you? The Massachusetts state tax calculator applies the schedule above to a salary and shows the result band by band.

Where these figures come from

Rates, bracket floors, standard deductions and exemptions are taken from the compilation below, stated as of January 1, 2026 and built from state statutes, forms and instructions. The state authority is always the final word on your own position.

• Tax Foundation — 2026 State Income Tax Rates and Brackets
• Massachusetts Department of Revenue

Reviewed by Teja K, CPA · last reviewed September 15, 2026. General information, not tax advice for your situation. State tax law changes frequently — confirm before acting. How we research and review this.