Missouri Late Fee Laws for Landlords (2026)
What the statute actually says
Missouri's landlord-tenant chapters (Mo. Rev. Stat. ch. 441 and 535) contain no residential late-fee provision: no cap and no grace period. The fee must be in the lease, and a court can still throw out one that is unreasonable. The $20-or-20% figure some sites quote comes from Mo. Rev. Stat. § 415.417, which covers self-storage facilities, not rental housing.
Citation: Mo. Rev. Stat. ch. 441 (no late-fee provision) · read the source
The most you can charge in Missouri
Missouri sets no number, so there is no statutory maximum to work out. At every rent level the test is the same:
| Monthly rent | Statutory cap | What limits the fee |
|---|---|---|
| $900 | None set | must be in the lease and reasonable |
| $1,200 | None set | must be in the lease and reasonable |
| $1,800 | None set | must be in the lease and reasonable |
| $2,500 | None set | must be in the lease and reasonable |
Work out your own figure with the late fee calculator →
Is there a grace period in Missouri?
No statutory grace period was found in the chapters cited above. That does not make a fee charged on day one automatically safe - a court still asks whether the fee is reasonable - but Missouri does not set a waiting period by statute. Whatever grace you give should be written into the lease so both sides are working from the same date.
Does the fee have to be in the lease?
Yes. No Missouri statute creates a late fee, so the lease is the only thing that does. A fee that is not in the lease is not collectable, no matter how reasonable the amount.
Charging it without getting it wrong
Most late-fee disputes are not about the amount. They are about the date the clock started, whether the fee was in the lease, and whether each payment was recorded against the right charge. Those are bookkeeping problems, and they are the ones that lose in court.
LandlordPro applies the grace period you set, charges the fee once, and records each payment against the oldest unpaid month first (that month's late fee when the payment covers it, then its rent), so the ledger shows where every dollar went. The rent roll shows exactly which day a charge landed and why, and the tenant sees the same breakdown in their portal.
Stop working late fees out by hand
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Start freeKey statute for Missouri
Authority: Mo. Rev. Stat. ch. 441 (no late-fee provision)
Statute text not quoted here yet — read it at the link above.
What this means: Missouri sets no statutory cap or grace period for rent late fees. The fee must be written into the lease and be reasonable. Mo. Rev. Stat. chapters 441 and 535 contain no late-fee provision.
Citation from our review of the chapter cited above (see "How we checked"); statute text not quoted here yet.
Frequently asked questions
What is the maximum late fee a landlord can charge in Missouri?
Missouri does not set one by statute. Chapters 441 and 535 of the Missouri statutes contain no residential late-fee provision, so the fee must be written into the lease and be reasonable.
How many days late before a landlord can charge a fee in Missouri?
Missouri sets no statutory grace period, so the lease governs. Put the number of days in writing.
Does a Missouri late fee have to be in the lease?
Yes. No Missouri statute creates a late fee, so the lease is the only thing that does. If it is not in the lease, there is nothing to enforce.
Can a landlord charge a late fee every month the rent stays unpaid in Missouri?
Missouri does not address repeat fees by statute. Compounding a fee month after month on the same unpaid rent is the kind of charge courts treat as a penalty, so it is a risk worth avoiding.
Is a late fee the same as interest in Missouri?
No. A late fee is a one-off charge for the administrative cost of a late payment. Interest accrues over time and is regulated separately. Charging both on the same rent invites a challenge.
Related
Questions from Missouri landlords
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