Missouri Probate Laws: Process, Timeline, and What Executors Must Know

You've just been named executor. The will is in your hands. The funeral is three weeks behind you. And now there's a message from an attorney with words like "opening probate" and "six-month creditor period."

You don't know what any of that means. You didn't ask for this role. And nobody's handed you a guide.

Missouri probate laws govern how estates are settled — and for most executors, navigating them means learning while the clock is already running. Here's what you need to know before the deadlines arrive.

The Three Paths Through Missouri Probate

Not every estate needs a courtroom. Missouri gives you three ways to settle an estate, and which one applies depends on size, family dynamics, and what the will says.

Small Estate Affidavit (estates at or below $40,000). For most personal property and financial accounts, you can sign a notarized affidavit and present it directly to whoever holds the asset — a bank, a brokerage. The asset transfers without court involvement. No filing, no waiting period. This option is available more often than people expect.

Independent Administration (most estates above $40,000). You manage the estate without asking the court's permission at every step. The court opens and closes the estate, but stays out of the middle. To qualify, the will must authorize independent administration — or every heir must consent in writing. One heir's refusal moves the estate into supervised administration.

Supervised Administration (contested or complex estates). When heirs disagree, when a will is challenged, or when the court has specific concerns, supervised administration applies. Every significant action — selling real property, making distributions — requires prior court approval. It's slower, more expensive, and the path most executors go to considerable lengths to avoid.

If you're settling a Missouri estate now and aren't sure which path applies, the Missouri Probate Guide walks through each option with the relevant forms and filing checklists.

How Long Does Probate Take in Missouri?

Six months at minimum. Twelve months for most.

That six-month floor is built into the law. Missouri requires the estate to publish notice to creditors in a local newspaper — once per week for four consecutive weeks. After that final publication, creditors have six months to file claims. You cannot distribute assets or close the estate before that window expires, no matter how organized you are.

The sequence of deadlines runs like this:

• Appointment → 30 days: File an inventory of all estate assets with their values. This is your first hard deadline.
• Death → 1 year: The will must be delivered to the probate court for safekeeping. After one year, the window closes permanently.
• Final creditor publication → 6 months: The earliest you can distribute assets and begin closing.

A straightforward estate — liquid assets, cooperative heirs, no disputes — can close in six to eight months. Real property that needs to sell, a distant heir slow to sign, or a creditor dispute pushes that toward a year. Contested estates run longer.

What Probate Costs in Missouri

Missouri sets executor and attorney fees by statute — RSMo 473.153, under the state's Probate Code — using a declining percentage applied to the estate's gross value.

On a $250,000 estate, that schedule produces roughly $12,850 in combined fees, split between the executor and attorney (about 5% of the estate's value). Both are legally entitled to those fees, though executors who are also beneficiaries often waive their portion.

Beyond statutory fees, plan for:

• Court filing fees: $75 to $300, depending on county
• Publication costs: $50 to $600 — urban newspapers in larger counties charge more; smaller rural papers charge less

Bond is also typically required. The estate purchases a surety bond on the executor's behalf — protection against mismanagement. The will can waive this requirement, though the court retains authority to require bond regardless if there are concerns about the executor's fitness. Check the will early, and ask the attorney whether bond will be required before assuming it's waived.

The Deadlines That Catch Executors Off Guard

Three dates create the most problems.

The 30-day inventory deadline. Missouri courts expect a full accounting of estate assets within 30 days of appointment. Executors waiting on bank statements or property appraisals routinely miss this without noticing. Request an extension before the deadline — courts grant them, but only if you ask in advance, not after.

The 1-year will delivery deadline. Wills found late — in a filing cabinet, in a safe deposit box nobody knew about — must reach the probate court within one year of the date of death. After that window, the court cannot admit the will.

The 6-month creditor period. This is the one executors most often try to work around. The estate looks settled. The bills seem paid. But distributing assets before the creditor window closes exposes you personally to any valid claim that arrives late. Wait for the window.

What's Actually at Stake

Being an executor means doing administrative work while your heart is somewhere else. You're negotiating with banks, chasing appraisers, and reviewing legal notices while also — somewhere beneath all of it — missing someone.

The mistakes executors make aren't usually careless. They come from not knowing what you're supposed to do, in what order, on which deadline. The executor who distributes assets early gets hit with a creditor claim they're personally liable for. The one who misses the inventory deadline triggers court scrutiny that delays everything that follows. The one who doesn't understand the fee schedule agrees to arrangements that cost the estate far more than necessary.

These are the kinds of errors that can fracture already-stressed families and drag a six-month process into two years.

The Missouri Probate Guide covers every step in order: which pathway fits your estate, what goes in the inventory, how to handle creditor claims, and what the court needs to close. It's written for the executor who isn't a lawyer and doesn't have time to become one — so the people your loved one left behind receive what they were meant to receive, without the delays and costs that come from navigating this blind.

See more Missouri guides →