Massachusetts estate tax threshold: $2 million (reformed October 2023, Chapter 50 of the Acts of 2023). Massachusetts is one of only 12 states with a state estate tax — with a $2M threshold, it is the second-lowest in the US after Oregon’s $1M. Rates: approximately 0.8% to 16% on amounts above the $2M threshold. Estate tax return (Form M-706) due within 9 months of the date of death. The Massachusetts estate tax applies to the entire estate if the gross estate exceeds $2M — there is no portability between spouses at the Massachusetts level. The federal step-up in basis means inherited Boston homes sold shortly after death have minimal capital gains. Massachusetts 5% income tax applies to any appreciation above the stepped-up basis.
Massachusetts Estate Tax: The Critical $2M Threshold
Massachusetts reformed its estate tax threshold from $1 million to $2 million in October 2023 (Chapter 50 of the Acts of 2023). This was a significant change — Massachusetts had the lowest estate tax threshold in the US at $1M for over a decade.
Post-reform (October 2023 onwards):
- Threshold: $2 million gross estate (including real property, accounts, life insurance if owned by decedent, business interests, retirement accounts if included in gross estate)
- If the gross Massachusetts estate exceeds $2 million: the estate owes Massachusetts estate tax on the ENTIRE estate (Massachusetts uses a “cliff” system — not a true exemption; the $2M threshold entitles the estate to a credit equivalent to the tax on a $2M estate)
- Tax rates: 0.8% on taxable estate between $0–$40,000 above the threshold; 16% on amounts over approximately $10M
- Filing: Massachusetts Form M-706 (Estate Tax Return); due within 9 months of the date of death; Massachusetts Certificate Releasing Massachusetts Estate Tax Lien required before the Boston property can be sold
No Massachusetts estate tax portability. Unlike the federal estate tax (which allows a surviving spouse to “port” the unused federal exemption of the deceased spouse), Massachusetts has NO portability. Each Massachusetts estate is evaluated independently at $2M. For married couples planning their estates, this is critical: each spouse’s estate is evaluated separately.
Massachusetts estate tax vs. federal estate tax:
- Federal: $13.99M threshold (2026); unlimited marital deduction (transfers to surviving US spouse)
- Massachusetts: $2M threshold; no portability; applies to all Massachusetts residents and to non-residents who own Massachusetts real property
For Boston heirs: If a parent’s estate (including a Boston triple-decker or single-family home) totals less than $2 million: no Massachusetts estate tax. If it exceeds $2 million: file Form M-706 within 9 months; pay the Massachusetts estate tax before or at closing; obtain the Massachusetts Certificate Releasing Massachusetts Estate Tax Lien from the Massachusetts Department of Revenue before the Suffolk County Registry of Deeds will record the deed.
Massachusetts Probate: Suffolk County Probate and Family Court
Suffolk County Probate and Family Court (24 New Chardon St., Boston, MA 02114): Governs Boston estates under the Massachusetts Uniform Probate Code (MUPC, M.G.L. Chapter 190B, effective 2012).
Informal Probate (M.G.L. Ch. 190B § 3-301 et seq.): Massachusetts informal probate is handled administratively without a hearing before a judge. The Personal Representative (PR) is appointed by the Register of Probate upon filing a petition. Most Massachusetts probates can proceed informally — the PR can sell real property and distribute assets without court supervision of each action. Timeline: 4 to 12 months for typical uncomplicated estates.
Formal Probate (M.G.L. Ch. 190B § 3-401 et seq.): Required when there is a dispute, a contested will, missing heirs, or complex assets. Requires court hearing and judicial supervision. Timeline: 12 to 24+ months.
Small Estate Affidavit (M.G.L. Ch. 190B § 3-1201): Massachusetts allows a voluntary successor to collect certain assets using an affidavit if the total net estate is under $25,000 AND at least 30 days have elapsed since the decedent’s death. Real property CANNOT be transferred by small estate affidavit — it requires probate or a joint tenancy deed.
No Massachusetts Transfer on Death Deed: Unlike California (RTDD), Indiana (TODD), Oregon (TODD), and many other states, Massachusetts does not have a Transfer on Death Deed mechanism for real property. Boston homes must be transferred through: (a) joint tenancy with right of survivorship deed, (b) revocable trust (most estate planning attorneys recommend), or (c) probate.
Revocable Living Trust: If the Boston home was held in a revocable trust, the successor trustee can sell or transfer immediately after the decedent’s death — no probate needed and no Suffolk County court involvement. The trust must be properly recorded or referenced, and the successor trustee must have authority confirmed.
Capital Gains on Inherited Boston Property
Federal step-up: Inherited property receives stepped-up basis equal to fair market value at date of death. An inherited triple-decker purchased by the parent for $100,000 in 1985 and now worth $900,000: basis steps up to $900,000 at the date of death. If sold shortly after for $900,000: no federal capital gains tax.
Massachusetts 5% income tax: Massachusetts taxes capital gains as ordinary income at 5% (long-term, held over 1 year). For any appreciation above the stepped-up basis (if the heir holds the property for years before selling), Massachusetts 5% applies. For heirs who sell promptly after inheriting: the step-up eliminates the capital gain, so the 5% Massachusetts rate is irrelevant.
Massachusetts short-term rate — 12%: If the heir sells within 1 year of the decedent’s death, Massachusetts treats this as a short-term capital gain — taxed at 12%. The stepped-up basis typically eliminates the gain entirely, making this less relevant for prompt sales. But if values have appreciated significantly since the date of death, any gain above the step-up within 12 months faces the 12% Massachusetts short-term rate.
Selling Options for Boston Heirs
Cash sale during Informal Probate: A cash sale (7 to 14 days) can close within the 4 to 12 month Informal Probate timeline. Particularly valuable for: (a) multi-generational Boston triple-deckers with deferred maintenance; (b) heirs who live outside Massachusetts and cannot manage a renovation and listing; (c) situations where multiple heirs (common in triple-decker ownership) cannot agree on a sale price or improvements.
Massachusetts estate tax lien clearance: If the estate owes Massachusetts estate tax, the Suffolk County Registry of Deeds requires a Massachusetts Certificate Releasing Massachusetts Estate Tax Lien before recording the deed. This certificate is issued by the Massachusetts Department of Revenue after the estate tax return is filed and the tax is paid. A cash buyer can close subject to obtaining this certificate — a title company experienced in Massachusetts estate sales manages this process.
Get a cash offer on your inherited Boston home →
For the comprehensive nationwide guide to selling inherited property, see: How to Sell an Inherited House: Complete 2026 Guide →
For the full overview of Boston fast-sale options, see: Sell My House Fast Boston MA: Every Real Option in 2026
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