Picture this: You die in Boston. Maybe you were in the North End, a bowl of clam chowder untouched, mid-argument about the Sox. Maybe you died during a Dunkin’ run. Doesn’t matter. What matters is that your family — still processing the loss — is about to discover that Massachusetts has an estate tax. That your estate might owe the Commonwealth money before your family sees a dollar. That probate here goes through the Probate and Family Court, which handles not just estates but also divorces and custody disputes, because Massachusetts likes to keep all the miserable paperwork in one place.
Here’s exactly what Massachusetts does when you die without a will — and why it’s more expensive than it needs to be.
Massachusetts’s Intestate Succession Law
Massachusetts intestacy is governed by Chapter 190B of the Massachusetts General Laws — the Massachusetts Uniform Probate Code (MUPC), adopted in 2012. The MUPC modernized a lot of the probate process. The intestacy formula, however, remains a strict hierarchy that doesn’t know you.
If you have a surviving spouse and children:
- All children are also the spouse’s children? Spouse gets the first $100,000 plus half the remaining estate. Children share the other half. (Unlike some states, Massachusetts gives children a share even in intact families — a big deal for estates with significant assets.)
- Children from a prior relationship exist? Same formula: spouse gets $100,000 plus half the balance. Prior-relationship kids get their share of the remaining half along with any other children.
If you have a surviving spouse but no children:
- Spouse gets $200,000 plus three-quarters of the balance.
- Remaining quarter goes to your parents (if alive).
- No parents? Spouse gets everything.
If you have children but no surviving spouse:
- Children share equally.
No spouse, no children:
- Parents inherit.
- No parents? Siblings.
- No siblings? Nieces and nephews.
- And on down the family tree.
- Truly no one? Estate escheats to Massachusetts.
Domestic partners: Massachusetts was the first state to legalize same-sex marriage (2004), and married same-sex spouses have full intestacy rights identical to different-sex spouses. Unmarried cohabiting partners — regardless of relationship length or mutual financial dependence — inherit nothing without a will.
Note on the spouse-children split: Even in an intact family, Massachusetts doesn’t give your spouse everything when you have kids. This surprises people. The children’s share is real — and if your kids are minors, that share goes into a guardianship account supervised by the court.
What Probate Looks Like in Massachusetts
Massachusetts probate runs through the Probate and Family Court — one court, 14 divisions statewide (one per county). It also handles divorces, adoptions, and name changes. Yes, the same judge who just handled a custody battle might be next handling your estate.
Timeline: The MUPC streamlined things significantly in 2012. Simple informal probate can now take 9–12 months. Formal probate or contested estates run 12–24 months or longer. The mandatory creditor notification period is 1 year from appointment of the personal representative — estates can’t fully close until that window passes.
The process:
- Petition filed in Probate and Family Court
- Personal representative appointed (informal or formal)
- Notice to heirs and interested parties
- Inventory and appraisal
- 1-year creditor notice period
- Debts paid, taxes handled
- Distribution per intestacy law
- Closing statement filed
Formal vs. informal: Like Arizona, Massachusetts under the MUPC offers informal probate for straightforward cases. Contested estates or those requiring court decisions go formal. Intestate estates are more likely to trigger formal proceedings when heirs disagree.
Cost: Probate typically costs 4–6% of the gross estate. On a $600,000 Massachusetts estate (a modest Boston-area home), that’s $24,000–$36,000 in fees. Then add the estate tax.
Massachusetts-Specific Quirks
Massachusetts has a state estate tax. Yes, still.
Massachusetts is one of only a handful of states with a state estate tax as of 2026. Here’s how it works:
- Estates over $2 million pay Massachusetts estate tax
- Rates range from 0.8% to 16% on the taxable estate
- The full estate is taxed (not just the amount over $2M — this is a “cliff” tax that trips people up)
- No portability between spouses for state purposes (unlike federal)
Example: A $2.1M estate owes Massachusetts estate tax on the entire $2.1M, not just $100,000. At lower rates, this might be $36,000–$40,000. At higher estate values, the tax climbs steeply.
For Massachusetts residents with a home, retirement accounts, and life insurance, hitting $2 million in total estate value is very common — especially in Greater Boston, where a decent house alone can run $800,000 to $1.5M.
The MUPC helped, but didn’t eliminate the pain. The 2012 adoption of the Massachusetts Uniform Probate Code (MUPC) modernized forms, reduced some court appearances, and created the informal probate track. It’s a genuine improvement. But a 1-year creditor waiting period and estate taxes for estates over $2M still make dying in Massachusetts expensive.
No community property. Massachusetts is a common-law property state. Assets belong to whoever earned or titled them. Spouses don’t automatically own 50% of marital income — relevant for estate planning in marriages where one spouse earned more.
Divorce revokes prior bequests automatically. Under the MUPC, if you divorce, any provisions in your will (if you had one) that benefited your ex-spouse are automatically revoked. This doesn’t help you in intestacy, but it’s good to know for will updates.
How to Avoid This Mess
Massachusetts’s estate tax is reason enough to get serious about estate planning. If your total estate — including your house, retirement accounts, and life insurance — exceeds $2 million, you need a will and probably a trust. But even if you’re under $2M, the probate cost and the intestacy formula (which doesn’t give your spouse everything even in intact families) make dying without a will expensive and chaotic.
Start with a will. Killswitch makes one for $69. It won’t by itself solve your Massachusetts estate tax problem — for that you’ll eventually want a trust conversation — but it’s the essential foundation. It controls asset distribution, names guardians, and reduces the probate mess your family otherwise inherits.
The clam chowder can wait. Write your will.
Go to killswitch.rip.
Frequently Asked Questions
Q: Does Massachusetts still have a state estate tax in 2026?
Yes. Massachusetts taxes estates over $2 million at rates from 0.8% to 16%. This is a state tax separate from the federal estate tax. Massachusetts’s $2M threshold is one of the lowest in the country, catching many residents who don’t consider themselves wealthy.
Q: Does a surviving spouse inherit everything in Massachusetts if there’s no will?
Not if you have children. Massachusetts intestacy gives the spouse the first $100,000 plus half the remaining estate; children share the other half. This surprises many people who assume a spouse automatically inherits everything.
Q: What is the Massachusetts Uniform Probate Code (MUPC)?
Adopted in 2012, the MUPC modernized Massachusetts probate law — creating informal probate tracks, standardizing forms, and reducing unnecessary court appearances. It’s a genuine improvement over the old system, but estates still take 9–24 months to close.
Q: How long is the creditor claims period in Massachusetts?
One year from the appointment of the personal representative. Estates generally can’t close until this period expires. This makes Massachusetts probate slower than states with shorter creditor windows.
Q: What happens to a minor child’s inheritance share in Massachusetts?
A minor’s inherited share doesn’t go to the surviving parent to manage freely — it goes into a guardianship account supervised by the Probate and Family Court. The surviving parent must petition the court to access those funds for the child’s needs, creating administrative overhead that a will’s trust provisions can avoid.
