Quick AnswerA Missouri residential lease is governed mainly by RSMo Chapters 441 and 535. The security deposit is capped at two months' rent (RSMo § 535.300), held in an insured institution, and returned with an itemized list within 30 days of move-out; wrongful withholding lets the tenant recover twice the amount wrongfully withheld. Missouri has no statutory late-fee cap. Ending a month-to-month tenancy takes one month's written notice (RSMo § 441.060). For nonpayment there is no statutory pay-or-quit period — a landlord may bring a rent-and-possession action once rent is due, demanded, and unpaid.
Missouri is a relatively landlord-friendly state with a light statutory framework, but its security deposit rules are specific and its eviction process differs from most states. This guide walks through every clause, figure, and notice a Missouri landlord should build into a compliant 2026 lease. For the national baseline, see What Every Residential Lease Agreement Must Include.

What clauses are legally required in every Missouri lease agreement?

Every Missouri lease should identify the landlord/agent and all adult tenants, the property, the rent and due date, and the term. Missouri does not require a written lease for tenancies of one year or less, but a lease for longer than one year must be in writing and signed to be enforceable under the Statute of Frauds (RSMo § 432.010). The main statutory obligations are the deposit rules (below) and the landlord's implied duty to disclose known material health and safety defects.

Missouri security deposit rules — the two-month cap and 30-day return

RSMo § 535.300 governs deposits:

  • Cap: a landlord may not demand or receive a deposit greater than two months' rent.
  • Where held: the deposit must be held in a bank or financial institution insured by the FDIC or NCUA (any interest earned belongs to the landlord).
  • Move-out inspection: the landlord must give the tenant reasonable written notice of the date and time of the post-move-out inspection, and the tenant has the right to be present.
  • Return: within 30 days of the tenancy ending, the landlord must return the deposit or provide a written itemized list of the reasons for any deductions.

Permitted deductions are limited to unpaid rent, damages the tenant caused beyond ordinary wear and tear, and restoring the unit to its move-in condition. A landlord who wrongfully withholds is liable for up to twice the amount wrongfully withheld. For a multi-state comparison, see security deposit rules every landlord must know.

Late fees and rent rules in Missouri

Missouri does not set a statutory cap on residential late fees. A late fee is enforceable if it is written into the lease and is reasonable rather than a punitive penalty; courts generally treat a modest percentage as reasonable. Note that the "$20 or 20%" figure that circulates online comes from Missouri's self-storage statute (RSMo § 415.417) and does not apply to residential leases.

Notice periods to end or not renew a Missouri lease

Month-to-month: either party may end a month-to-month (or other tenancy of less than one year) with one month's written notice, fixing termination on a rent-paying date at least one month out (RSMo § 441.060).

Nonpayment: Missouri uses a rent-and-possession action and does not require a statutory pay-or-quit notice period. The landlord need only have demanded the rent and not been paid; if a full month's rent or more is in arrears, filing the suit itself is treated as sufficient demand. A separate unlawful-detainer action (RSMo Ch. 534) covers a holdover after the lease ends. Self-help eviction is unlawful.

What disclosures must Missouri landlords provide?

Missouri's required disclosures are limited but specific:

  • Methamphetamine production (§ 441.236): if the premises was used to produce methamphetamine and the landlord has knowledge of it, the landlord must disclose that in writing to the tenant — regardless of whether anyone was ever convicted.
  • Lead-based paint (federal): the signed disclosure, records, and EPA pamphlet for pre-1978 housing.
  • Known material defects: as a practical and common-law matter, landlords should disclose known health and safety defects.

What happens if a Missouri lease is missing required terms?

Specific failures carry specific consequences:

  • Deposit over the cap: the tenant can recover the excess above two months' rent.
  • Missed 30-day return / no itemization: exposes the landlord to up to twice the amount wrongfully withheld (§ 535.300).
  • Undisclosed meth history: leaves the landlord in violation of § 441.236 and exposed to the tenant's claims.

Managing rentals in more than one state? Compare Missouri's rules with our Illinois and Tennessee lease requirement guides.

Full Missouri disclosure checklist

For a dedicated, statute-by-statute rundown of every notice a Missouri landlord must give at signing, see our Missouri required lease disclosures checklist.

A compliant Missouri lease pairs the universal essentials with the state's deposit rules: a two-month cap, an insured account, a reasonable-notice move-out inspection, and a 30-day itemized return backed by double-damages exposure — plus the methamphetamine disclosure where it applies. LeaseHelper generates a Missouri-specific lease pre-populated with these clauses so nothing required is left out.

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Frequently asked questions

What is the maximum security deposit in Missouri?

Two months' rent (RSMo § 535.300). The deposit must be held in an FDIC- or NCUA-insured institution and returned with an itemized list within 30 days of move-out.

How long does a Missouri landlord have to return a security deposit?

Within 30 days of the tenancy ending, with the deposit or a written itemized list of deductions. Wrongful withholding lets the tenant recover up to twice the amount wrongfully withheld (RSMo § 535.300).

Is there a late-fee limit in Missouri?

No. Missouri does not cap residential late fees; the fee must be written into the lease and reasonable. The "$20 or 20%" rule seen online is a self-storage statute, not a residential rule.

How much notice is required to end a month-to-month tenancy in Missouri?

One month's written notice by either party, fixing the end on a rent-paying date at least one month out (RSMo § 441.060).

Does Missouri require a notice before filing for nonpayment of rent?

No statutory pay-or-quit period is required. Missouri uses a rent-and-possession action; the landlord must have demanded the rent, and if a full month or more is owed, filing the suit is treated as sufficient demand (RSMo Ch. 535).

Official sources

Primary statutes and official government references for this guide. Statutes change — always confirm against the current official text before you act.

This article provides general information about Missouri lease agreement requirements and landlord-tenant law and is not legal advice. Laws change and local ordinances (for example, in St. Louis and Kansas City) may add requirements. Verify current statutes before acting, and for complex situations consult a licensed Missouri attorney. Last reviewed: July 2, 2026.