Abandoned rental property in Missouri: the 441.065 notice and what you may remove

What makes a Missouri rental abandoned?

Section 441.065 says any property of a tenant remaining at the premises after the tenant abandons them may be removed or disposed of by the landlord without liability to the tenant. The key word is "after." The statute then lists what must be true before the premises are deemed abandoned. All four conditions have to be met, not just one.

1. The landlord has a reasonable belief that the tenant has vacated and intends not to return.
2. Rent is due and has been unpaid for thirty days.
3. The landlord posts a written notice on the premises and mails it to the tenant's last known address by both first class mail and certified mail, return receipt requested.
4. The tenant fails to either pay rent or respond in writing within ten days after the date of posting and the date of mailing, stating an intention not to abandon.

The conditions stack. Thirty days of unpaid rent is not enough by itself, and neither is an empty-looking unit. A landlord who clears a unit after the thirty days but before the ten-day reply window ends has skipped a step the statute requires.

What does the notice have to say?

The statute supplies the wording, to be used "where appropriate." In short, it tells the tenant that the rent has been due and unpaid for thirty consecutive days, that the landlord believes the tenant moved out and abandoned the property, and that the landlord may declare the property abandoned and remove and dispose of the possessions unless the tenant writes to the landlord within ten days saying the unit has not been abandoned. It tells the tenant to send the statement by regular first class mail and, if the tenant chooses, by certified mail to the landlord's name and street address, which you fill in.

Use the statutory language, not a paraphrase. Copy it from the statute on the Revisor's site, add your name and street address, and date it. Mail one copy by first class mail and one by certified mail, return receipt requested, to the last known address, and post a copy on the door. Photograph the posted notice with the date visible and keep the mailing receipts.

Example a made-up landlord has a tenant whose rent has been unpaid since Tuesday, September 1, 2026. On Thursday, October 1, 2026 (thirty days later) the unit looks empty and the utilities are off. The landlord posts the notice and mails both copies that day. The ten-day reply window runs through Sunday, October 11, 2026. If the tenant neither pays nor writes back by then, the landlord can treat the premises as abandoned. If the tenant writes back on Saturday, October 10 saying they still live there, the abandonment route is closed and the landlord needs the court route instead.

What if the tenant answers?

A written response stating an intention not to abandon ends the 441.065 route. You then deal with a tenant who is behind on rent and says they still live there, which is a case for the court process. See our post on how to evict a tenant in Missouri. Do not change the locks while you decide. Section 441.233 treats removing or excluding a tenant or the tenant's property without judicial process and a court order, or removing doors or locks, as forcible entry and detainer, except as section 441.065 provides.

That exception is the point of this post. Section 441.065 is the narrow way around the court order requirement, and it only works if you follow it step by step. If you skip the notice and clear the unit anyway, you are outside the exception.

A clean order of steps

• Write down the dates you visited, what you saw, and why you believe the tenant is gone and not returning.
• Count thirty days of unpaid rent on the ledger before you start the notice.
• Post and mail the notice the same day, both ways, and keep the proof.
• Wait the full ten days from the later of the posting and the mailing before you touch any belongings.
• If there is no payment and no written reply, photograph and inventory what is left before moving it.
• Handle the deposit on its own timeline. See Missouri security deposit laws.

The statute is silent on how long you must store what you remove, so do not read a storage rule into it. It says only that you may remove or dispose of the property without liability once the premises are deemed abandoned. If a tenant later shows up with a written reply that you did not receive, you will want proof of exactly what you posted and mailed.

Where does DoorKeeping fit?

DoorKeeping stores the lease, the rent ledger, work orders and a copy of every notice you send, so the dates are on file if a court or a tenant asks. You still write, serve and track the notice yourself, and anything with a legal step waits for your one-tap approval. This is general information, not legal advice: check the current statute, and ask a local attorney if the tenant disputes what you did.

Sources

1. Missouri Revised Statutes 441.065, Abandonment of rental premises, when, procedure (Missouri Revisor of Statutes), read Oct 31, 2026
2. Missouri Revised Statutes 441.233, Landlord's unlawful removal or exclusion of tenant (Missouri Revisor of Statutes), read Oct 31, 2026

Questions

When can a Missouri landlord remove a tenant's property after they leave?

After the premises are deemed abandoned under 441.065: reasonable belief the tenant left, thirty days of unpaid rent, a posted and mailed notice, and ten days with no payment or written reply.

How is the Missouri abandonment notice sent?

Posted on the premises and mailed to the last known address by both first class mail and certified mail, return receipt requested.

Can a Missouri landlord change the locks on a unit they think is empty?

Not without a court order, except as 441.065 provides. Section 441.233 treats it as forcible entry and detainer.