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Massachusetts Probate Timeline

1-Year Creditor Period from Date of Death · Form M-706 Within 9 Months · Income Tax April 15 · MUPC Informal or Formal Closing

⚠️ Massachusetts Has Two Critical Deadlines Running from Different Start Dates
  • 1 year from date of death — creditor period (MUPC § 3-803). No final distributions until this date. Measured from the date the deceased died — not from appointment, publication, or Letters issuance.
  • 9 months from date of death — MA estate tax (Form M-706) due if gross estate exceeds $2,000,000 (2023+) or $1,000,000 (pre-2023 deaths). Extension available but tax due within 9 months.

Both deadlines run from the date of death. The estate tax deadline hits at month 9; distributions cannot happen until month 12. Mark both dates on your calendar immediately.

Master Deadline Table

Deadline Measured From Action Required
Immediately Date of death Secure assets; pay urgent bills; maintain insurance
As soon as possible Date of death Order 6–8 certified death certificates from MA Vital Records
As soon as possible Date of death Locate original will; identify correct county Probate and Family Court
Within 1–4 weeks Date of death File Application for Informal Probate (or Petition for Formal Probate)
Upon appointment Date Letters issued Apply for estate EIN; open estate bank account
Promptly after appointment Date Letters issued Publish Notice to Creditors in county newspaper
Promptly after appointment Date Letters issued Mail written notice to all known creditors
Per MUPC § 3-706 Date Letters issued File inventory with Probate and Family Court
9 months from death Date of death File Form M-706 (MA Estate Tax Return) and pay MA estate tax if applicable
April 15 Calendar year of death File deceased's final MA Form 1 (income tax) and federal Form 1040
April 15 (following year) Tax year of estate income File MA Form 2 (fiduciary income tax) and federal Form 1041 if estate earned income
1 year from death Date of death Creditor period expires — pay valid claims; begin final distributions
After creditor period After 1 year from death File Statement of Personal Representative (informal) or Account/Decree (formal) to close

Month-by-Month Calendar

Week 1 — Immediate Actions

Weeks 2–4 — File with Probate and Family Court

Month 1 — Establish Estate Administration

Months 2–4 — Inventory and Tax Planning

Months 5–9 — Tax Returns and Estate Tax Deadline

Month 10–12 — Approaching Creditor Period End

Months 12–15 — Distribute and Close

✅ Massachusetts Tax Calendar Summary
Tax Form Deadline Filed With
Form M-706 (MA estate tax) 9 months from date of death MA Department of Revenue
MA Form 1 (deceased's final income tax) April 15 MA Department of Revenue
MA Form 2 (estate fiduciary income tax) April 15 MA Department of Revenue
Federal Form 1040 (deceased's final) April 15 IRS
Federal Form 1041 (estate income) April 15 IRS
Federal Form 706 (federal estate tax) 9 months from death (if > $13.61M) IRS

No Massachusetts inheritance tax — ever. No filing required from beneficiaries on distributions received.

5 Key Timeline Tips for Massachusetts Personal Representatives

Tip 1 — The Creditor Clock Starts at Death, Not at Letters

Unlike Rhode Island (6 months from appointment) and New Jersey (9 months from appointment), Massachusetts measures its 1-year creditor period from the date of death — not from when Letters are issued. This means the clock starts running before you even open probate. If you delay opening probate by 2 months after death, you still need to wait until the full 1-year anniversary of death before making final distributions.

Tip 2 — Know Which Estate Tax Threshold Applies

Massachusetts raised the estate tax exemption from $1M to $2M on January 1, 2023. If the deceased died on December 31, 2022, the old $1M threshold applies and many moderate estates owe state tax. If they died on January 1, 2023, the new $2M threshold applies. Always check the death date first before calculating whether Form M-706 is required.

Tip 3 — Use Informal Probate for Uncontested Testate Estates

MUPC's informal probate was designed to reduce time and cost in routine estates. A Magistrate (not a judge) reviews the application and issues Letters without a hearing. This can happen in days or weeks. Formal probate, which requires a scheduled court hearing and judicial review, is much slower. Unless you have a contested will, missing heirs, or a supervised administration need, use informal probate.

Tip 4 — The 9-Month Estate Tax Deadline Arrives Before You Can Distribute

The Massachusetts estate tax (Form M-706) is due at month 9 from death, but the creditor period doesn't expire until month 12. This means you'll be filing estate tax returns and paying MA estate tax well before you're permitted to make final distributions. Plan for this sequencing: calculate the gross estate in months 1–3, prepare M-706 in months 4–8, pay by month 9, and begin distributions after month 12.

Tip 5 — No Massachusetts Inheritance Tax Simplifies Beneficiary Distributions

Unlike New Jersey, which charges Class C and D beneficiaries 11–16% on distributions, Massachusetts has no inheritance tax. Whether you're distributing to a spouse, child, distant relative, or friend, no Massachusetts tax is withheld from or owed by the beneficiary. The only MA tax on the estate itself is the estate tax for gross estates over $2M (2023+) — and that's paid by the estate, not the beneficiaries.

Massachusetts vs. Neighboring States — Timeline Comparison

Feature Massachusetts Rhode Island Connecticut New York New Jersey
Creditor period 1 year from death 6 mo. from appt. 150 days from pub. 7 mo. from Letters 9 mo. from appt.
Estate tax deadline 9 mo. from death 9 mo. from death N/A (repealed 2023+) 9 mo. from death N/A (repealed 2018)
Estate tax exemption $2M (no cliff) $1.77M None $7.16M (cliff) None
Inheritance tax deadline N/A — no inh. tax N/A N/A N/A 8 mo. from death (IT-R)
Typical total duration 12–18 months 9–15 months 9–12 months 12–18 months 9–15 months

Massachusetts has the longest creditor period in New England — 1 year from death. Connecticut (150 days from publication) and Rhode Island (6 months from appointment) close estates faster. However, MUPC's informal probate procedure makes Massachusetts's court process faster than Connecticut's or Rhode Island's full probate requirements once the creditor period expires.

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