Massachusetts Probate Bond
Under M.G.L. c. 190B § 3-601, every Massachusetts personal representative must file a bond before receiving Letters — informal or formal, will or no will. There is no clause that waives the filing itself. What actually varies, under § 3-603, is whether that bond needs sureties — and only four narrow paths get you out of that: a will that waives sureties, every heir or devisee signing a written waiver, a qualifying bank or trust company serving as fiduciary, or a judge independently deciding sureties aren't in the estate's interest. Whether your case runs informally or formally in the Probate & Family Court changes who can force the surety question. This page covers all of it: the § 3-604 amount formula, the § 3-605 demand rule, and what the bond actually costs.
“Bond waived” almost never means what it says in Massachusetts
Most probate content treats a will's bond language as either “bond required” or “bond waived,” full stop. Massachusetts law under M.G.L. c. 190B doesn't work that way. Section 3-601 requires a bond filing in every single case — there is no statutory path to zero bond. Section 3-603, titled “Bond without sureties,” only ever waives the surety piece: whether the bond needs a corporate surety company standing behind it, or can be filed without one. Four things, and only four things, get you out of needing sureties:
The four paths off a surety requirement
M.G.L. c. 190B § 3-603(a) — none of these waive the bond filing itself, only the sureties on it
| Path | Statute | What it actually requires |
|---|---|---|
| Will waives sureties | § 3-603(a)(i) | The will directs no bond or waives the surety requirement outright. |
| All heirs/devisees waive in writing | § 3-603(a)(ii) | Every heir (intestate) or every named devisee (with a will) — not a majority — files a written waiver. |
| Bank or trust company serves | § 3-603(a)(iii)/(b) | The personal representative is a Massachusetts-qualified bank or trust company; national banks are exempt outright under (b). |
| Court finds sureties aren't in the estate's interest | § 3-603(a)(iv) | A judge independently concludes sureties don't serve the estate's best interest. |
In any formal proceeding, the court may require sureties or additional sureties on its own motion under §3-603(a) — even over a will's waiver or an all-heir waiver already on file.
If none of the four apply — or a formal proceeding puts a judge in a position to override one that does — you need an actual surety bond, which is the product we write. See our national guide on how bond waivers work state by state for how Massachusetts' every-case-files-a-bond rule compares to states that waive the filing entirely.
Informal appointment vs. formal proceeding: who can force sureties
Article III of the MUPC gives Massachusetts estates two tracks. An informal proceeding is handled by a register or magistrate without a hearing — built for uncontested estates with a clear will or clear heirs, and it moves fast. A formal proceeding goes in front of a Probate & Family Court judge, with notice to interested parties — typically because the will is contested, heirs are unascertained, or the appointment itself is disputed.
The track matters for sureties because § 3-603(a) closes with a specific grant of power: “In any formal proceeding the court, on its own motion, may require sureties or additional sureties.” That authority doesn't exist the same way in an informal proceeding — a magistrate approving an informal appointment isn't exercising independent judgment about whether the estate needs sureties the way a judge in a formal proceeding can. Practically: a clean, informal appointment with a valid surety waiver on file is unlikely to get revisited, while a formal proceeding — even one that starts with a will waiving sureties — puts a judge in the room who can order them anyway if something about the estate warrants it.
No multiplier — the bond is your own sworn number
States like Ohio (2x personal property) or New York (personal property plus 18 months of rents) run the bond amount through a statutory multiplier. Massachusetts doesn't. Under § 3-604(a), if the will or court order doesn't already specify an amount, the person qualifying files a sworn statement estimating the value of the decedent's personal estate, and the bond is set at that estimate — your own number, under oath, is the formula.
M.G.L. c. 190B § 3-604(a) — bond amount without a court-set figure
M.G.L. c. 190B § 3-604(a). The court may reduce this figure by the value of estate assets deposited with an insured Massachusetts financial institution in a form restricting unauthorized withdrawal; either the personal representative or another interested person may later petition to increase, reduce, release the surety, or substitute the bond.
That figure is the coverage amount, not what you pay — the premium is a small percentage set by underwriting. For how carriers price that percentage, see what determines your surety bond cost and our probate bond cost breakdown by state. Want the math on your own figures? Try the probate bond calculator.
The $5,000 demand: a low bar to force sureties mid-administration
Even a valid waiver isn't necessarily permanent. Under § 3-605, “any person apparently having an interest in the estate worth in excess of $5,000 or any creditor having a claim in excess of $5,000” can make a written demand that the personal representative give sureties on the bond — regardless of what the will says or what heirs already waived. Once that demand lands, the fiduciary has 30 days to provide suitable sureties. Miss the window and the statute makes it “cause for removal.”
That $5,000 threshold is strikingly low compared to other demand-driven UPC states — Michigan's parallel EPIC provision, MCL § 700.3605, sets its demand threshold at $30,000 with a 28-day cure window (see our Michigan probate bond guide for that mechanism). In Massachusetts, a comparatively small heir or creditor dispute — a $6,000 claim, a modest bequest — is enough to force a fiduciary who assumed they were bond-surety-free into an active bond application with a 30-day clock running.
The bond names a person, not just a court
Massachusetts runs probate through 14 county Probate & Family Courts — Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin, Hampden, Hampshire, Middlesex, Nantucket, Norfolk, Plymouth, Suffolk, and Worcester. Under § 3-606(a), the bond must “name the first justice of the court making the appointment and his successors as obligee for the benefit of the persons interested in the estate” — the sitting justice and their successors in that role, not simply “the Commonwealth” or “the court” as an abstract institution. Sureties on the bond are jointly and severally liable with the personal representative and with each other, executing the bond is treated as consent to the court's jurisdiction over the fiduciary's conduct, and the statute lets a successor personal representative or an interested person bring an action against the surety directly for a breach.
Practically: the bond amount and the governing statute don't change by county, but the county determines which sitting justice gets named as obligee and where the executed bond is filed. Tell us the county at the start and we build the form correctly the first time.
What a Massachusetts surety bond actually costs
Once sureties are required — no will waiver, no all-heir waiver, not a bank/trust fiduciary, and no favorable court finding under § 3-603(a)(iv) — the premium runs a small percentage of the § 3-604 bond amount, consistent with the 0.5%–1.5% industry-standard range for probate fiduciary bonds we track nationally. A fiduciary with strong personal credit and a straightforward estate typically prices toward the low end of that range; estates with real property, business interests, or a fiduciary with credit challenges price higher.
Not filing the required bond has real consequences: under § 3-601, Letters do not issue without it, and a personal representative who receives a § 3-605 demand and doesn't post sureties within 30 days faces removal. Get the paperwork moving early and neither becomes an issue.
Official Massachusetts Requirements
"Prior to receiving letters, a personal representative shall accept appointment and qualify by filing a bond with the appointing court."General Court of the Commonwealth of Massachusetts — Mass. General Laws • M.G.L. c. 190B § 3-601
From petition to a bond your Probate & Family Court will accept
Confirm whether you actually need sureties
Check the will's language against §3-603(a)(i), whether every heir or devisee is willing to sign a written waiver under (ii), and whether the case is proceeding formally — where a judge can override a waiver on its own motion.
Identify the county and the role
Which of the 14 Probate & Family Courts has jurisdiction, and whether you're a personal representative, special personal representative, conservator, or guardian — each maps to different filing details.
File your sworn estate estimate
If the will or an order hasn't already fixed the amount, you'll submit a sworn statement of the personal estate's value under §3-604 — that figure becomes the bond amount.
Apply for the surety bond
A quick review of the fiduciary's credit and the estate. Most probate bonds are approved fast with an admitted, Treasury-listed surety.
File the executed bond, naming the first justice as obligee
We issue the bond on the form your county's court accepts, correctly naming the sitting justice as obligee under §3-606, so Letters can be issued.
Have your Order, Letters, or an estate estimate? We'll write the bond to that exact figure and file it.
Start my probate bond quoteOther Massachusetts fiduciary bonds you may also need
Fiduciaries and estates in Massachusetts often need more than one of these:
Managing an estate with property in another state too? See how New York's SCPA bond formula and county Surrogate's Courts compare — the amount math and waiver mechanics differ from Massachusetts'. Neighboring Connecticut runs an even narrower waiver: only an executor's bond can be excused by will, with no equivalent carve-out for administrators or conservators. Further north, New Hampshire's RSA 553:13 requires sureties by default and only fully waives bond under RSA 553:32, a stricter default than Massachusetts' four surety-waiver paths. Further up the coast, Maine runs the reverse default of Massachusetts' every-case rule — 18-C M.R.S. §3-603 requires no bond at all for most informal proceedings, only flipping to bond-by-default once a case goes formal. South of Boston, Rhode Island skips Massachusetts' sworn-estimate formula entirely — no county courts, just 39 separate city/town probate courts each setting bond “in any sum as it shall require”. Across the Green Mountains, Vermont shares Massachusetts' every-case bond mandate under 14 V.S.A. §906, but its Form 700-00004 surety waiver runs through unanimous heir consent rather than Massachusetts' four-path §3-603 test.
Massachusetts probate bond questions: sureties, demands, and cost
My will says the executor "serves without bond." Does that mean I skip the bond filing?
No — and this trips up a lot of Massachusetts executors. M.G.L. c. 190B § 3-601 requires every personal representative to "accept appointment and qualify by filing a bond with the appointing court" before Letters issue. There's no clause anywhere in Massachusetts probate law that waives the bond filing itself. What a will actually waives, under § 3-603(a)(i), is the requirement of sureties on that bond — meaning you still file a bond, but it can be a bond without a corporate surety backing it, rather than the surety product we sell. If your will is silent on sureties, or the estate has no will, you're back to needing an actual surety bond.
Only some of the heirs are willing to sign a waiver — is that enough?
No. Section 3-603(a)(ii) requires "all of the heirs, if no will has been probated, or all of the devisees named in a will" to file a written waiver of sureties — not a majority, not "most." One holdout heir or devisee who won't sign means the waiver path fails and you need a surety bond unless the will itself waived sureties, you're a qualifying bank/trust company, or the court independently concludes under § 3-603(a)(iv) that sureties aren't in the estate's best interest.
Does filing informally instead of formally change whether I need a surety?
It changes who can force the issue, not the underlying rule. In an informal proceeding, a Probate & Family Court magistrate reviews and approves the bond as part of routine appointment — there's no judge weighing in unprompted. In a formal proceeding, § 3-603(a) gives the court itself the power to "require sureties or additional sureties" on its own motion, even over an otherwise-valid waiver. Practically: an informal, uncontested appointment with a clean will waiver rarely gets second-guessed, while a formal proceeding — often triggered by a will contest, unknown heirs, or a contested appointment — puts a judge in a position to override the waiver if something about the estate concerns them.
Someone with a small claim against the estate is demanding I post sureties — do I have to comply?
If their interest or claim exceeds $5,000, yes. Section 3-605 lets "any person apparently having an interest in the estate worth in excess of $5,000 or any creditor having a claim in excess of $5,000" make a written demand that you give sureties on the bond — regardless of what the will says. You then have 30 days to provide suitable sureties. Miss that window and the statute makes it "cause for removal." That $5,000 threshold is low — far lower than the $30,000 demand threshold under Michigan's comparable EPIC statute, MCL § 700.3605 — so a comparatively minor dispute can force a Massachusetts fiduciary into bonding fast.
There's no state multiplier listed anywhere — how does Massachusetts actually set the bond amount?
Unlike states that bond at a fixed multiple of estate value (Ohio doubles it, New York adds 18 months of rents), Massachusetts under § 3-604(a) just uses your own sworn number: if the will or court order doesn't specify an amount, you file "a statement under oath with the court indicating the best estimate of the value of the personal estate," and the bond is set at that estimate. The court can reduce the bond by the value of assets held at an insured Massachusetts financial institution in a form that blocks unauthorized withdrawal, and either the personal representative or another interested person can later petition to increase, reduce, or substitute the bond as the estate's picture changes.
Who actually holds my Massachusetts probate bond, and where does it get filed?
Whichever of Massachusetts' 14 county Probate & Family Courts has jurisdiction over the estate — Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin, Hampden, Hampshire, Middlesex, Nantucket, Norfolk, Plymouth, Suffolk, or Worcester. Under § 3-606(a), the bond must "name the first justice of the court making the appointment and his successors as obligee" — an unusual naming convention most other states don't use, where the individual sitting justice (and successors in that role) is the named obligee rather than the court itself as an institution. Sureties on the bond are jointly and severally liable with the personal representative and with each other.
All content is researched from official state and federal sources (.gov) and verified before publication. BuySuretyBonds.com works with Treasury-certified, A-minimum rated surety carriers serving all 50 states.
General information, not legal, tax, or underwriting advice. Massachusetts probate bond requirements, amounts, forms, and surety waivers are set by the Massachusetts Uniform Probate Code (M.G.L. c. 190B §§ 3-601, 3-603, 3-604, 3-605, 3-606), effective March 31, 2012, and administered by each county Probate & Family Court, and they change over time. Confirm the current requirement with the court handling your matter, and request a quote for your specific bond form and amount.
File the bond your Probate & Family Court will actually accept
Tell us your role, county, and whether sureties are already waived. We write the bond to your sworn estimate or the court's exact figure, name the correct justice as obligee, and file it fast — free quote, no obligation.
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