Written by: Attorney Scott Stork
Most Missouri probate cases take 6 to 12 months from start to finish, though a handful of factors can move that number in either direction. Small estates can close in a few months. Contested or complicated ones can run 18 months or longer. If you’re the personal representative of a loved one’s estate right now, here’s what actually sets that timeline, and what’s within your control.
Key takeaways
- Most Missouri probate cases take 6 to 12 months. In a full probate administration, Missouri’s six-month creditor claim period is one of the main reasons the process usually cannot be completed quickly.
- Estates over $40,000 can use independent administration (faster) or supervised administration (typically 10 to 14 months), depending on the will and heir consent.
- Small estates under $40,000 can often use a simplified small estate affidavit, closing in as little as 60 to 90 days.
- A surviving spouse’s situation is often simpler than a full estate suggests, since jointly held property and named-beneficiary accounts typically bypass probate entirely.
- Real estate sales, heir disputes, and assets held in multiple states are the most common reasons a case runs past a year.
The floor that almost nothing can change: six months
In full estates, Missouri law gives creditors six months to file claims against an estate after the personal representative publishes notice in a local newspaper. That clock starts running early in the process, and it cannot be shortened, waived, or rushed, no matter how organized the family is or how simple the estate looks. This is the single biggest reason a “quick” probate still takes the better part of a year. Even a small, uncomplicated estate with no disputes and one heir generally can’t close before that six-month window ends.
The two paths: independent versus supervised administration
For estates over $40,000, Missouri offers two ways to administer probate, and which one applies has a real effect on how long the process takes.
Independent administration lets the personal representative handle most steps, like selling property or paying bills, without asking the court’s permission at each turn. It’s available when the will specifically allows it, or when all the heirs agree to it. This is the faster, less expensive path, and it’s what most families end up using when everyone is on the same page.
Supervised administration means the court approves major decisions along the way and reviews annual accountings. It’s required when the will doesn’t authorize independent administration and the heirs don’t all consent, or when the situation calls for more court oversight, such as a dispute among beneficiaries. This path typically takes longer, often 10 to 14 months, because each major step has to wait on court approval.
We cover how to tell which path applies to your specific estate, and what each process actually looks like from start to finish, in Independent vs. Supervised Probate in Missouri: Which One Applies to Your Estate?.
If you’re a surviving spouse, your situation may be simpler than you think
Not every asset goes through probate, and this matters most for a surviving spouse. Property owned jointly with rights of survivorship, accounts with a named payable-on-death or transfer-on-death beneficiary, and life insurance or retirement accounts with a named beneficiary typically pass directly to the surviving spouse outside of probate entirely, regardless of what the will says. For many married couples, that means a meaningful share of what a spouse actually needs access to right away, a jointly held home, a shared bank account, retirement accounts, may already be theirs without a six-month wait or a court filing.
What usually still needs probate is anything titled solely in the deceased spouse’s name: a car titled individually, an account without a beneficiary designation, or property owned before the marriage that was never retitled. If that piece is small enough, Missouri’s small estate affidavit may apply even if the rest of the estate doesn’t.
This is also the moment to update your own plan, not just settle your spouse’s. A surviving spouse typically needs a new will, updated powers of attorney, and a review of beneficiary designations that may still name a spouse who has passed. That’s not a separate errand to get to eventually. It’s part of the same conversation, and it’s exactly what our surviving spouse plan update is built for.
A realistic timeline, stage by stage
Opening the estate (weeks 1 to 4). The personal representative files the will (if there is one) and a petition with the probate court, and the court issues Letters Testamentary or Letters of Administration. Missouri law requires a will to be presented within one year of death, and missing that window can force the estate into intestate distribution instead of following the will, distribution governed by state law, not the deceased’s wishes.
Notice to creditors (months 1 to 6). The personal representative publishes notice to creditors, which starts the mandatory six-month claim period. This is the stretch that sets the floor on the whole process.
Inventory and administration (months 2 to 8, overlapping). The personal representative identifies, values, and manages estate assets, pays valid debts and taxes, and, if needed, sells property to cover expenses. Under independent administration, most of this happens without court preapproval for each step. Under supervised administration, many of these actions require the court’s sign-off first.
Closing the estate (months 6 to 12). Once the creditor period ends and debts are settled, the personal representative prepares a final accounting and, with court approval, distributes the remaining assets to heirs or beneficiaries.
What can push the timeline past a year
A few common situations reliably add months to the process:
A disputed will or a fight among heirs over who should serve as personal representative, which can add months before administration even starts.
Real estate that has to be sold, especially if the market is slow or the property needs repairs before listing.
Assets in multiple states, which can trigger a secondary probate proceeding (called ancillary probate) in each additional state.
Missing or unclear records, particularly around older asset titling or a will that doesn’t name an independent administrator and requires heir consent that isn’t easy to get.
What can help keep it moving
An organized personal representative who gathers the will, death certificate, and asset records quickly. A will that explicitly authorizes independent administration, so the family isn’t negotiating consent after a death. And, often overlooked, an accurate initial inventory, since gaps discovered later tend to reopen steps that already looked finished.
The estates that skip most of this entirely
Not every estate goes through the full process above. If the estate is worth $40,000 or less, Missouri allows a small estate affidavit, which can resolve things in as little as 60 to 90 days. And assets that were properly titled to avoid probate in the first place, like a fully funded living trust, joint accounts with survivorship rights, or accounts with named beneficiaries, don’t go through this process at all. That’s often the biggest difference between families who spend a year in probate court and families who don’t spend a day there.
Frequently asked questions
What’s the fastest probate can take in Missouri? For a small estate under $40,000, a small estate affidavit can close in as little as 60 to 90 days. For a full probate estate, the six-month creditor claim period makes anything faster than six months unlikely.
Can I avoid probate in Missouri entirely? Yes, for assets properly titled outside of probate, such as those in a fully funded living trust, joint accounts with rights of survivorship, transfer-on-death deeds, and accounts with named beneficiaries. A will alone does not avoid probate.
Does a surviving spouse have to go through the full probate process? Often only for a portion of the estate. Jointly held property and accounts with named beneficiaries typically pass directly to a surviving spouse without probate. Only assets titled solely in the deceased spouse’s name usually require the formal process.
What happens if a will isn’t filed within a year of death? Missouri generally requires a will to be presented for probate within one year of death. Missing that deadline can mean the estate is distributed under intestate succession law instead of following the will’s instructions.
If you’re serving as a personal representative right now, or you’re a surviving spouse trying to figure out what actually needs probate and what doesn’t, call Polaris Estate Planning & Elder Law. We’ll walk you through exactly where things stand and what comes next.
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