Massachusetts MUPC Formal Probate: Forms, Notice, and Hearing

Massachusetts formal probate is the judge-supervised track for settling an estate, and it is required whenever a will is contested, the original is missing or altered, an heir is a minor or incapacitated, a creditor or public administrator starts the case, or the estate needs court supervision. It runs on a fixed sequence: file a petition with the Probate and Family Court, deliver notice to everyone with an interest, wait out the return date for objections, appear at a hearing, and receive a decree that appoints the personal representative and, where applicable, admits the will.

The alternative is informal probate, handled by a magistrate without a hearing and available only when the estate is uncontested, the original will is in hand, every heir has capacity, and the proposed personal representative has statutory priority.¹ If any of those conditions fails, formal probate is your path.

When Formal Probate Is Required

The Probate and Family Court identifies several situations that force an estate onto the formal track:¹

Only a copy of the will exists, or the original has handwritten additions or crossed-out language that a judge must evaluate.
Someone contests the will’s validity, including on grounds of undue influence or lack of capacity. An objector can also file formally to block a pending informal petition.
A beneficiary is a minor or otherwise incapacitated and cannot represent their own interests.
The person seeking appointment as personal representative does not hold statutory priority.
A creditor or a public administrator is the one starting the probate.
The estate needs supervised administration, meaning court approval for every action the representative takes.
The will’s language is ambiguous enough to require judicial interpretation.

The statute governing formal testacy proceedings, G.L. c. 190B, § 3-401, treats the process as litigation to determine whether a valid will exists.² Once a formal proceeding is filed, the magistrate cannot act on any pending informal petition for the same estate, and any informal personal representative already appointed must stop making distributions until the formal case resolves.

Forms and Documents You File

Massachusetts publishes a formal probate checklist, MPC 967, listing every required document.³ Getting the form numbers right matters. The court will reject a filing built on the wrong forms, and some numbers are easy to confuse with their informal-track counterparts.

Core Forms

MPC 160, Petition for Formal Probate of Will, Adjudication of Intestacy, and/or Appointment of Personal Representative. This is the main filing and captures the facts of the estate, the deceased’s family, and what the petitioner is asking the court to do. Do not confuse this with MPC 150, the informal petition.⁴
MPC 162, Surviving Spouse, Children, Heirs at Law. A supplemental schedule identifying every person who may have a legal interest in the estate.
MPC 163, Devisees. Required when a will exists, listing every person or entity named to receive property under it.
MPC 801, Bond. Massachusetts always requires a bond. Sureties on the bond can be waived if the will directs it, if all heirs or devisees consent in writing, or if the personal representative is a qualified bank or trust company. When sureties are required, you choose between a personal surety and a corporate surety through an insurance company that charges an annual premium.⁵
MPC 470, Military Affidavit. Verifies whether any interested party is currently serving in the armed forces, as required by the Servicemembers Civil Relief Act. It can be omitted only if every interested person has assented in writing.³
MPC 755, Decree and Order. The proposed order for the judge to sign at the hearing.

Supporting Documents

You also file the original will if you have one. If you don’t, a copy or a written statement of the will’s contents can be submitted, though the absence of the original is itself one of the reasons formal probate is required. A certified death certificate is needed, or an affidavit if the certificate is not yet available. Later in the case, after you have given notice, you will file MPC 560, the Citation–Return of Service, proving how and when notice was delivered.

The petition must list the names and addresses of all interested persons as defined by G.L. c. 190B, § 1-201, including surviving spouses, children, heirs, devisees, and anyone else with a financial stake in the estate.⁶ Property values should reflect realistic estimates as of the date of death, and complex holdings like business interests may need additional schedules.

The same MPC 160 petition handles an intestate estate, with the will-related attachments omitted. Formal adjudication of intestacy is especially useful when the family tree is unclear, potential heirs disagree about their shares, or someone believes an undiscovered will may exist.

Filing, Fees, and Giving Notice

The packet goes to the Registry of Probate in the county where the deceased lived. The filing fee is $375 plus a mandatory $15 surcharge.⁷ When the clerk accepts the filing, the court issues a citation setting a return date, which is the deadline for interested parties to respond.

G.L. c. 190B, § 1-401 provides three acceptable ways to deliver notice, and you need to satisfy at least one for each interested person:⁸

Mail a copy of the citation by certified, registered, or first-class mail at least 14 days before the return date.
Hand-deliver a copy at least 14 days before the return date.
Publish the citation once in a newspaper of general circulation designated by the Register of Probate, at least 7 days before the return date. Publication reaches unknown creditors and heirs who cannot be located by mail.

Before the return date, you file MPC 560 with the court, documenting exactly how and when notice was given, including proof of mailing, personal delivery receipts, and a copy of the newspaper publication. The case will not move forward without it.

The Return Date and Objections

Anyone opposing the petition must enter a written appearance before 10:00 a.m. on the return date, stating their name, address, and the name of the proceeding.⁸ That initial appearance is not enough on its own. The objector must then file a written affidavit of objections within 30 days after the return date, laying out the specific facts and legal grounds. Vague or conclusory objections can be struck on motion, so an appearance alone cannot stall an estate indefinitely.

The Hearing, Decree, and Letters of Authority

If no valid objection is filed, the hearing is usually short. The judge reviews the paperwork, confirms that the will is valid or that the correct heirs have been identified in an intestate estate, and signs the Decree and Order on MPC 755. In contested cases, the judge may schedule additional hearings for testimony and argument before ruling.

Once the decree is signed, the court issues Letters of Authority to the personal representative. These letters are the credentials you use to interact with banks, brokerage firms, title companies, and government agencies. Without them, no institution will let you touch the deceased’s accounts or property. With them, the personal representative can sell real estate, pay debts and taxes, and distribute assets under the will or intestacy law.

After Appointment: Duties, Creditors, and Taxes

Appointment is the start of the work, not the end. The personal representative owes fiduciary duties with real legal consequences.

One early practical step is obtaining an Employer Identification Number for the estate from the IRS using Form SS-4, available online at no cost.⁹ The estate needs its own EIN for tax filings, bank accounts, and any income earned after the date of death.

You must prepare an inventory of all probate assets, valued as of the date of death, and share it with every beneficiary. Massachusetts does not generally require filing the inventory with the court, but a judge can order it. Beyond the inventory, the personal representative manages assets prudently, pays valid debts, files tax returns, and distributes what remains. Under G.L. c. 190B, § 3-719, a personal representative is entitled to reasonable compensation, judged by complexity, time, and skill required rather than a fixed percentage.¹⁰

Creditor deadlines drive the pace of distributions. Under G.L. c. 190B, § 3-803, a creditor must start a lawsuit and personally serve the personal representative, or file a written notice of the claim with the Register, within one year of the date of death.¹¹ After one year, unpursued claims are barred against the estate, the representative, and anyone who received a distribution. Distributing too quickly, before the one-year window closes, exposes the representative personally if a legitimate creditor later appears and the estate is empty. Most representatives hold back a reserve or wait out the year before final distributions.

Taxes come from two directions. Massachusetts imposes its own estate tax on any estate with a gross value above $2,000,000, using a graduated schedule based on the old federal state death tax credit, with rates from 0.8% up to 16% on amounts above roughly $10 million.¹²¹³¹⁴ If the estate earns $600 or more in gross income during any tax year from interest, dividends, rent, or gains, the personal representative also files Form 1041.¹⁵ A modest bank account earning interest during administration can be enough to trigger the filing.

Supervised Administration

Supervised administration is a heightened level of court oversight that some estates require and any interested person can request. Under G.L. c. 190B, § 3-501, it places the estate under the court’s continuing authority from start to finish.¹⁶ The personal representative must get court approval before taking significant actions, and the proceeding does not close until a judge signs an order approving the final distribution and discharging the representative.

Supervised administration is uncommon and adds time and expense. It typically comes into play when beneficiaries do not trust the personal representative, when the estate is unusually complex, or when a prior representative has been removed for mismanagement. Filing the separate petition carries its own $375 fee plus the $15 surcharge.⁷

When You May Not Need Formal Probate at All

Not every estate needs the formal track, and some need no probate at all. Voluntary administration is available for estates consisting entirely of personal property worth $25,000 or less, excluding the value of one motor vehicle.¹⁷ Real estate of any value disqualifies the estate from that shortcut. Above that, informal probate remains an option when the will is undisputed, the original is in hand, every heir has capacity, and the proposed representative holds statutory priority, with a magistrate able to issue an order as early as seven days after the death.¹ If your situation clears both bars, use the faster track. If it doesn’t, the formal process laid out above is the one you are working with.

1
Mass.gov. Learn About the Types of Probate for an Estate
2
General Court of Massachusetts. Massachusetts General Laws Part II, Title II, Chapter 190B, Section 3-401
3
Mass.gov. Checklist for Formal Probate – MPC 967
4
Mass.gov. Petition for Formal Probate of Will and/or Appointment of Personal Representative – MPC 160
5
Mass.gov. Massachusetts General Laws c190B 3-603
6
General Court of Massachusetts. Massachusetts General Laws Part II, Title II, Chapter 190B
7
Mass.gov. Probate and Family Court Filing Fees
8
General Court of Massachusetts. Massachusetts General Laws Part II, Title II, Chapter 190B, Section 1-401
9
Internal Revenue Service. Information for Executors
10
Mass.gov. Massachusetts General Laws c190B 3-719
11
Mass.gov. Massachusetts General Laws c190B 3-803
12
Mass.gov. Massachusetts Estate Tax Guide
13
Internal Revenue Service. Whats New — Estate and Gift Tax
14
eCFR. 26 CFR 20.6075-1 – Returns; Time for Filing Estate Tax Return
15
Internal Revenue Service. Instructions for Form 1041 and Schedules A, B, G, J, and K-1
16
General Court of Massachusetts. Massachusetts General Laws Part II, Title II, Chapter 190B, Section 3-501
17
Mass.gov. Instructions for Voluntary Administration with or without a Will – MPC 961