Massachusetts taxes estates worth more than $2 million. If you die a Massachusetts resident on or after January 1, 2023, and the value of everything you own at death exceeds that figure, your estate owes a state estate tax before your heirs see a dollar. The tax is paid by the estate, not the people inheriting, and it applies whether or not the federal government taxes you at all: the federal exclusion sits at $15 million per person in 2026, the Massachusetts line at $2 million with no inflation adjustment.
The $2 million figure came out of the October 2023 tax relief act (Chapter 50 of the Acts of 2023), which doubled the old $1 million threshold retroactive to deaths on or after January 1, 2023. The same law killed the notorious “cliff,” under which an estate one dollar over the line paid tax on its entire value from the first dollar. How the replacement works, and what still catches families off guard, is worth walking through.
What Counts Toward the $2 Million
The starting point is the federal gross estate, and it sweeps in far more than most people expect. For estate tax in Massachusetts, the count includes:
- Real estate, at fair market value on the date of death, not what you paid for it. A house bought in Arlington for $180,000 in 1992 may be a $950,000 asset today.
- Life insurance you own on your own life, at the full death benefit. A $500,000 term policy adds $500,000 to your gross estate even though you never could have spent it while alive.
- Retirement accounts: 401(k)s, IRAs, 403(b)s, pensions with survivor benefits.
- Jointly held property. Between spouses, half the value is included. With a non-spouse joint owner, the full value is included unless the estate can prove the other owner contributed.
- Bank and brokerage accounts, business interests, vehicles, and personal property.
The house plus the life insurance is the classic surprise. A Greater Boston homeowner with a paid-off house, a retirement account, and a group life policy through work can clear $2 million without ever feeling wealthy; single-family home prices in many communities inside Route 128 exceed $1 million on their own.
One category now comes out of the count. Under an amendment signed in September 2024, retroactive to deaths on or after January 1, 2023, real estate and tangible personal property located outside Massachusetts is excluded when figuring the tax. The 2023 act had originally handled out-of-state property through a prorated credit; the 2024 fix removed the value from the computation outright, as codified in G.L. c. 65C, § 2A. A Florida condo or a Maine camp no longer inflates the Massachusetts bill. Out-of-state intangibles, such as a brokerage account held at an out-of-state firm, are still included for residents, and the Supreme Judicial Court held in Shaffer v. Commissioner of Revenue, 485 Mass. 198 (2020), that even assets in an out-of-state QTIP trust are taxable when the surviving spouse dies domiciled here.
How the Tax Is Computed: The $99,600 Credit
Massachusetts never wrote its own rate schedule. Under G.L. c. 65C, § 2A, the tax equals the credit for state death taxes that federal law would have allowed under section 2011 of the Internal Revenue Code as in effect on December 31, 2000. That old federal table produces graduated rates that run from less than 1 percent at the bottom to 16 percent on the portion of an adjusted taxable estate above roughly $10 million.
The 2023 act then bolts on a credit of up to $99,600 against that computed tax. The number is not arbitrary: $99,600 is exactly what the old table charges a $2 million taxable estate. So an estate at or under $2 million owes nothing, and an estate over $2 million pays, in effect, only the tax attributable to the amount above $2 million. The statute also states flatly that no tax is imposed if the federal taxable estate is $2 million or less. That is why the cliff is dead: crossing the line by $100,000 costs $7,200, not $106,800.
Three worked examples, each assuming a single decedent with no deductions:
| Taxable estate | Tax from the § 2011 table | Less credit | Massachusetts tax due |
|---|---|---|---|
| $2,100,000 | $106,800 | ($99,600) | $7,200 |
| $3,000,000 | $182,000 | ($99,600) | $82,400 |
| $5,000,000 | $391,600 | ($99,600) | $292,000 |
Notice the shape. The $2.1 million estate pays 7.2 percent on its last $100,000. The $3 million estate pays about 8.2 percent of the amount over $2 million. The estate tax rate massachusetts uses climbs through 8, 8.8, and 9.6 percent as the estate grows, topping out at 16 percent for estates above about $10 million. Describing the tax as “up to 16 percent” is accurate but misleading; most families over the line pay effective rates in the single digits on the excess.
Deductions come off before the tax is figured. Massachusetts follows the federal rules as they stood at the end of 2000, which means an unlimited marital deduction for property passing outright to a surviving spouse (or into a qualifying marital trust) and an unlimited charitable deduction. Debts, mortgages, funeral costs, and administration expenses also reduce the taxable estate.
The No-Portability Trap for Married Couples
Federal law lets a surviving spouse inherit the deceased spouse’s unused exclusion, a feature called portability. Massachusetts has no equivalent. Each spouse gets one $2 million shelter, and it dies with them if unused.
Consider a couple with $4 million in combined assets. The first spouse leaves everything to the survivor; the marital deduction means no tax is due at that point. But the survivor now owns $4 million with one $2 million shelter. At the second death the estate owes $180,800. Had the first spouse routed $2 million into a credit shelter trust, a trust that supports the survivor but stays out of the survivor’s taxable estate, the second estate would have been $2 million and the tax zero. The all-to-spouse plan, the default in most simple wills, costs this family roughly $180,000.
This is the single most common and most fixable problem in Massachusetts estate planning, and it can only be fixed while both spouses are alive.
Gifts: No Gift Tax, With a Wrinkle
Massachusetts imposes no gift tax. Give away $500,000 during life and the Commonwealth collects nothing on the transfer.
The wrinkle is in the paperwork. Adjusted taxable gifts made after 1976, meaning gifts above the federal annual exclusion ($19,000 per recipient in 2026), are added back when testing whether the estate crosses the $2 million filing threshold. Per the Form M-706 instructions, though, those gifts affect only the filing threshold; they are not added to the taxable estate when the tax itself is computed. The practical result: a person who gives away $600,000 and dies with $1.6 million must file a return (gross estate plus gifts is $2.2 million) but owes no tax, because the taxable estate is under $2 million. Lifetime giving genuinely removes value from the Massachusetts tax base, which makes it one of the few strategies that works better here than it does federally.
One caution: gifted appreciated assets carry over your cost basis, so recipients lose the step-up in basis they would receive at your death. For low-basis stock or real estate, the capital gains tax on massachusetts real estate sold after a gift can exceed the estate tax saved.
Filing Mechanics and Real Estate Transfer Tax Considerations
The return is Form M-706, filed with the Department of Revenue, and it is due nine months after the date of death, along with payment. A Massachusetts estate tax return is required whenever the gross estate plus adjusted taxable gifts exceeds $2 million, even if deductions bring the tax to zero. The estate can request a six-month extension to file on Form M-4768, but an extension to file is not an extension to pay; interest runs on unpaid tax from the nine-month mark.
Real estate adds a step that surprises many families at closing. Under G.L. c. 65C, § 14, Massachusetts real property in a decedent’s estate is automatically subject to an estate tax lien for ten years from the date of death. The property cannot deliver clear title until the lien is addressed. For estates that owe or must file, the DOR issues a Certificate Releasing Massachusetts Estate Tax Lien (Form M-792) once the return is processed and any tax paid. For estates safely under the $2 million threshold, no return is needed and the lien is typically cleared by recording an affidavit at the registry of deeds stating that the gross estate plus adjusted gifts does not require a filing. Attorneys handling a sale within a few years of an owner’s death should build the release into the closing timeline.
Note that Massachusetts does not impose a separate real estate transfer tax at the state level on property passing by inheritance, though many municipalities assess transfer or deed excise stamps on conveyances; the estate tax itself is the state’s charge on the transmission of property at death.
How to Reduce the Tax, and the Honest Limits
The tools are well established:
- Credit shelter trusts for married couples, preserving both $2 million shelters as described above. This is the workhorse.
- Lifetime gifting, which shrinks the taxable estate with no Massachusetts gift tax, subject to the basis trade-off.
- Irrevocable life insurance trusts (ILITs), which move policy death benefits out of the gross estate if the trust owns the policy (existing policies must be transferred more than three years before death).
- Charitable bequests, deductible without limit.
- A genuine change of domicile to a state with no estate tax. This works, but domicile is a facts-and-circumstances question, and keeping a Massachusetts house means the house itself stays taxable here as nonresident real property.
The honest limits: revocable living trusts, by themselves, save nothing. They avoid probate, which is useful, but their assets remain fully in the taxable estate. Nor can you deed the house away while continuing to live in it rent-free; the retained-interest rules pull it right back into the estate. Anyone whose assets are near or above $2 million should have the plan reviewed by an estate planning professional.
How Massachusetts Compares to the Federal Estate Tax
The gap between the two systems is now enormous. The federal basic exclusion was $13.99 million per person in 2025. The One Big Beautiful Bill Act, signed July 4, 2025, set it at $15 million per person beginning in 2026 and made that figure permanent, with inflation adjustments starting in 2027. The federal system also allows portability between spouses, so a married couple can shield $30 million.
Massachusetts sits at $2 million per person, no inflation adjustment, no portability. The result is that the state tax is the only estate tax most affected families will ever face. A $5 million Massachusetts estate owes the Commonwealth $292,000 and owes Washington nothing. Because there is no federal bill to plan around, the entire planning conversation for most residents is a state conversation, and the estate tax exemption massachusetts allows of $2 million, frozen while home values climb, pulls more estates over the line every year.
Frequently Asked Questions
Does Massachusetts have an estate tax?
Yes. Massachusetts imposes a state estate tax on estates exceeding $2 million in value for deaths on or after January 1, 2023. The tax is paid by the estate before distribution to heirs, and it is calculated using the credit for state death taxes under IRC § 2011 as in effect December 31, 2000, minus a $99,600 credit. Most estates under the federal exclusion still owe Massachusetts tax if they exceed $2 million.
What is the estate tax rate in Massachusetts?
Massachusetts estate tax rates are graduated, starting below 1 percent on the first taxable dollars and climbing to 16 percent on estates above roughly $10 million. Because of the $99,600 credit, estates just over $2 million pay an effective rate of 7 to 8 percent on the amount above the threshold, rising as the estate grows. The marginal rate most families experience is between 8 and 10 percent.
What is the Massachusetts estate tax exemption for 2025 and 2026?
The massachusetts estate tax exemption 2025 and the massachusetts estate tax exemption 2026 both remain $2 million. The threshold was set by the October 2023 tax relief act and contains no inflation adjustment. The federal exclusion is $15 million per person in 2026, but Massachusetts uses its own fixed exemption, meaning state estate planning remains necessary for estates above $2 million even when no federal tax is due.
Is there still an estate tax cliff in Massachusetts?
No. Under the pre-2023 law, an estate even slightly over $1 million was taxed on its full value from the first dollar. The October 2023 act replaced that structure with a uniform credit of up to $99,600, which equals the tax on a $2 million estate. Estates over $2 million now pay only the tax attributable to the excess. An estate of $2,100,000 owes $7,200, not tax on the whole $2.1 million.
Does a surviving spouse pay Massachusetts estate tax?
Not on assets passing to them. Property left outright to a surviving spouse, or to a qualifying marital trust, is covered by an unlimited marital deduction, so the tax at the first death is typically zero. The bill comes at the second death, when the survivor’s estate holds the combined assets with only one $2 million shelter. Planning at the first death, usually with a credit shelter trust, is what prevents that.
Is inherited money taxed as income in Massachusetts?
No. An inheritance is not income to the recipient, so it does not go on your Massachusetts or federal income tax return. Income the inherited assets later generate, such as interest, dividends, or withdrawals from an inherited traditional IRA, is taxable in the ordinary way. The estate tax, where it applies, is paid by the estate before distribution.
Does Massachusetts have an inheritance tax?
No. People often ask, does massachusetts have an inheritance tax, and the answer is that the Commonwealth repealed its inheritance tax decades ago for deaths after 1975. An inheritance tax is charged to each beneficiary based on what they receive and their relationship to the decedent; a handful of states such as Pennsylvania and Kentucky still have one. Massachusetts instead levies a single estate tax on the estate itself before anything is distributed.
Do I need to file if the estate is under $2 million?
Usually not, but check the gift add-back. A Form M-706 is required when the gross estate plus adjusted taxable gifts made after 1976 exceeds $2 million. An estate of $1.8 million with $400,000 in prior taxable gifts must file even though no tax will be due. Estates under the threshold with real estate should record an affidavit at the registry of deeds to clear the automatic estate tax lien before selling.
Does out-of-state real estate count toward the Massachusetts estate tax?
No longer. Under G.L. c. 65C, § 2A as amended in September 2024, retroactive to deaths on or after January 1, 2023, real estate and tangible personal property located outside Massachusetts is excluded from the computation for residents. Intangible assets, wherever held, remain included, and under Shaffer v. Commissioner of Revenue that reach extends to out-of-state QTIP trust assets when the surviving spouse dies domiciled in Massachusetts.
Where can I find a Massachusetts estate tax calculator?
The Department of Revenue publishes worksheets with Form M-706 that walk through the computation step by step, applying the IRC § 2011 table and the $99,600 credit. Several estate planning attorneys and financial planning firms offer online calculators that estimate the tax based on asset values and deductions. Any estimate should be verified against current DOR guidance and the actual return instructions, as the calculation depends on the specific facts of the estate.
Sources: G.L. c. 65C, §§ 2A, 14; Chapter 50 of the Acts of 2023; Massachusetts DOR, Estate Tax Guide and FAQs on the 2023 estate tax changes; Form M-706 instructions; IRC § 2011 (as in effect Dec. 31, 2000); Pub. L. 119-21 (2025); Shaffer v. Commissioner of Revenue, 485 Mass. 198 (2020). This article is general information, not legal advice.