Michigan Probate Deadlines: What to File and When

Michigan's Inventory deadline is 91 days, not 90 — a small precision that says something about how exactly this state's statutes are worth reading.

MCL 700, Article III

Quick answer: the deadline that anchors most of the schedule is the 4-month creditor claim window, running from publication. See the full Michigan probate timeline calculator for your specific estimate.

The core deadlines, in order

DeadlineMichigan ruleStatute
Notice to creditors publishedPromptly after appointmentMCL 700.3801
Notice to known creditorsWithin 4 months of publication (or 28 days of learning of them)MCL 700.3801(2)
Inventory dueWithin 91 days of appointmentMCL 700.3706
Creditor claim deadline (unknown)4 months from publicationMCL 700.3803(1)(a)
Creditor claim deadline (known)Later of 1 month from notice, or 4 months from publicationMCL 700.3803(1)(b)
If notice never given3 years from date of deathMCL 700.3803(1)(c)
Suit after a disallowed claim63 daysMCL 700.3806

Two different deadlines, easy to confuse

Worth separating clearly: the Inventory itself — the sworn list of the decedent's assets at fair market value — is due within 91 days of appointment under MCL 700.3706. The inventory fee is a completely different thing: a statutory cost under MCL 600.871, tiered by estate value, calculated from that same inventory but functioning as a court fee, not a filing deadline. Confusing the two is a common source of misunderstanding among first-time personal representatives.

Good faith doesn't always protect the estate

A personal representative or attorney who gives notice based on a good-faith belief that someone is a creditor isn't personally liable for having given that notice, under MCL 700.3801(3). But this protects the individual, not necessarily the estate — a genuinely known creditor who was missed can still have a valid claim against estate assets.

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Michigan probate deadlines — frequently asked questions

Why 91 days for the Michigan Inventory instead of 90?

MCL 700.3706 sets the deadline at exactly 91 days from appointment — a specific figure rather than a round 3-month approximation, and it's worth tracking precisely rather than assuming it matches other states' 90-day rules.

Are the Michigan inventory fee and the Inventory deadline the same thing?

No. The Inventory itself — the asset list — is due within 91 days under MCL 700.3706. The statutory inventory fee under MCL 600.871 is a separate cost calculated from that same inventory, tiered by estate value, and it cannot be waived.

How long does a Michigan personal representative have after disallowing a claim?

The clock actually runs against the creditor, not the representative: once a claim is disallowed in writing, the creditor has 63 days to sue on it under MCL 700.3806, or the claim is permanently barred.

Is a Michigan personal representative personally liable for late notice to a known creditor?

Not if they acted in good faith based on a reasonable belief about who counted as a known creditor, under MCL 700.3801(3) — though the estate itself can still remain liable to that creditor.

Estimate for general guidance only, not legal advice. Based on MCL 700.3706, 700.3801, 700.3803, 700.3806. Confirm current deadlines with the county Probate Court or a licensed Michigan attorney.