Missouri Security Deposit Laws: The Two-Month Cap, 30-Day Return, and Penalties

Missouri security deposit law is set almost entirely by one statute — Missouri Revised Statutes section 535.300 — and it is refreshingly compact. A landlord may not demand or receive a deposit larger than two months’ rent, must account for the deposit within thirty days after the tenancy ends, may withhold only for a short list of purposes, and faces a doubled-damages penalty for keeping money it had no right to keep. This guide walks the whole Missouri framework end to end: how much you may collect, what you can and cannot deduct, the thirty-day return deadline, the written itemized list, the move-out inspection the tenant has a right to attend, why interest belongs to the landlord, and the penalty a court can impose when a landlord withholds a deposit wrongfully.

Whether you own one duplex in Springfield or a small portfolio across Kansas City and St. Louis, the rules below apply the same way, because Missouri Revised Statutes section 535.300 governs statewide and Missouri has no statewide rent-control or deposit-interest overlay. What varies from tenancy to tenancy is the lease language — a few deductions, notably carpet cleaning, are available only when the lease specifically says so. Everything here is general information, not legal advice; confirm the current figures and consult a licensed Missouri attorney before acting on a specific dispute.

Below, a short overview video summarizes the Missouri deposit rules; the sections that follow break down each piece in detail — the two-month cap, deductions versus ordinary wear and tear, the thirty-day timeline, the itemized list, the inspection right, the no-interest rule, the doubled-damages penalty, the move-out walkthrough, and the small-claims path if a dispute cannot be resolved.

The starting point of Missouri deposit law is a hard ceiling on how much you may collect. Under Missouri Revised Statutes section 535.300, a landlord may not demand or receive a security deposit in excess of two months’ rent. That is a maximum, not a suggested figure — a great many Missouri landlords collect one month’s rent, and a smaller deposit is often the more competitive choice in a soft rental market. But two months’ rent is the outer limit, and charging more is a live legal error that a tenant can challenge.

The cap is measured against the monthly rent for the specific unit, so a higher rent supports a proportionally higher deposit within the two-month band. Crucially, the two-month limit is aggregate: Missouri defines a security deposit broadly, so every refundable sum you collect to secure the tenancy — a base deposit, a pet deposit, a cleaning deposit, a key deposit — counts toward the same two-month total. You cannot stack a one-month base deposit and a separate two-month “pet deposit” and claim you are under the cap on each; the statute looks at the whole.

What Counts as a “Security Deposit”

The statute’s definition is deliberately broad. A security deposit is any deposit of money or property, however denominated, that a tenant furnishes to a landlord to secure performance of any part of the rental agreement, including damage to the dwelling unit. That breadth is what pulls pet deposits, cleaning deposits, and similar charges under section 535.300’s rules. It also means a landlord cannot escape the return process by giving a deposit a different name; if it functions as a deposit, the thirty-day accounting and the two-month cap both apply.

Missouri Revised Statutes section 535.300 lists the only purposes a landlord may withhold money from a security deposit, and it lets the landlord retain only the amounts reasonably necessary for those purposes. The landlord bears the burden of proving each deduction is legitimate, so anything not clearly on the list is presumed to be the landlord’s cost to absorb.

Permitted Deductions

• Unpaid rent. Amounts reasonably necessary to remedy the tenant’s default in paying rent due under the rental agreement.
• Restoring the unit, wear and tear excepted. The cost to restore the dwelling unit to its condition at the start of the tenancy, other than ordinary wear and tear — that is, repairing tenant-caused damage.
• Damages from inadequate notice to terminate. Actual damages the landlord suffers because the tenant failed to give adequate notice to end the tenancy, but only if the landlord makes reasonable efforts to mitigate those damages by re-renting.
• Carpet cleaning, if the lease says so. A carpet-cleaning charge may be withheld only when the rental agreement contains a provision notifying the tenant that such a charge can be deducted.

Not Deductible — Ordinary Wear and Tear

Ordinary wear and tear is the natural deterioration that comes from living in a unit normally, and the statute expressly excepts it from what the landlord may charge to restore the unit. Missouri landlords should treat these as non-deductible:

• Faded or lightly scuffed paint, and small nail holes from hanging pictures.
• Carpet worn thin along walkways from ordinary foot traffic, with no stains or pet damage.
• Minor marks, loose grout, or caulk that has aged around tubs and sinks.
• Worn but still-functioning appliances and fixtures that simply reached the end of their useful life.

The deadline Missouri landlords miss most often is the thirty-day return rule. Under Missouri Revised Statutes section 535.300, within thirty days after the date the tenancy terminates, the landlord must do one of two things: return the full amount of the security deposit, or furnish the tenant a written itemized list of the damages for which any portion of the deposit is being withheld, together with the balance. The clock runs from the termination of the tenancy and the tenant’s surrender of the unit — keys returned, belongings out — not from a date on a calendar the parties never reached.

What the Itemized List Must Include

The list must describe each item of damage and the amount withheld for it. A single word with a number — “cleaning, two hundred dollars” — is not an itemized list; a defensible entry names the specific damage, ties it to a room or fixture, and states the cost. The safest practice is to attach the underlying invoices, estimates, or receipts, and to keep photographs that show the condition each charge addresses. The landlord who documents this way rarely loses a deduction; the landlord who writes a vague line usually does.

Forwarding Address and Proof of Mailing

Missouri ties the landlord’s duty to termination of the tenancy rather than to the tenant handing over a forwarding address. The practical takeaway is that a landlord should not sit on the deposit waiting for an address to arrive. Request a written forwarding address at move-out, but if none comes, send the deposit and any itemized list within thirty days to the tenant’s last known address — commonly the rental unit itself — using certified mail or another method that produces proof of mailing. That proof is often what decides a later dispute over whether the landlord met the deadline.

One feature of Missouri law that landlords overlook is the tenant’s right to attend the move-out inspection. Under Missouri Revised Statutes section 535.300, the landlord must give the tenant — or the tenant’s representative — reasonable notice in writing, at the tenant’s last known address, or notice in person, of the date and time when the landlord will inspect the unit after the tenancy ends to determine what will be withheld. The tenant then has the right to be present at that inspection.

This is not a formality to skip. The notice-and-attendance right serves the same protective purpose that a pre-move-out walkthrough serves in other states: it gives the tenant a chance to see the claimed damage first-hand, dispute it on the spot, and it demonstrates the landlord’s good faith. A landlord who inspects without giving the required notice, and then withholds based on that inspection, hands the tenant a strong argument that the deductions were improper.

Two questions confuse Missouri landlords more than any others: whether they must pay interest on the deposit, and whether they must hold it in a separate account. On both, Missouri law is landlord-friendly.

On interest, the statute is explicit: any interest earned on a security deposit is the property of the landlord. There is no statewide requirement to pay a tenant interest on the deposit, and Missouri has no local deposit-interest ordinances of the kind found in some other states. A Missouri landlord may hold a deposit in an interest-bearing account and keep the interest, or hold it in a non-interest account, entirely at the landlord’s option.

Missouri backs the deposit rules with a real penalty. Under Missouri Revised Statutes section 535.300, if a landlord wrongfully withholds all or any portion of the security deposit in violation of the statute, the tenant may recover as damages twice the amount wrongfully withheld. That doubling is on top of returning the amount itself, so a landlord who keeps money it had no right to keep can end up paying roughly three times that sum once the withheld amount and the doubled damages are combined.

Wrongful withholding is not merely being wrong about a single deduction. It generally means the landlord kept money without a legitimate statutory basis — missing the thirty-day deadline, failing to provide the itemized list, inventing charges, or deducting for ordinary wear and tear. A landlord who returns the deposit and a clear itemized list on time, with documentation for each charge, is well protected even if a specific deduction is later disputed. The penalty exists to punish the landlord who treats the deposit as free money, not the one who makes a good-faith, documented judgment call.

Put the rules together and the Missouri move-out becomes a repeatable checklist rather than a judgment call. Follow this sequence and penalty exposure all but disappears.

A thorough move-out record starts at move-in. Use a documented Missouri move-in and move-out checklist and photographs at both ends so you can prove exactly what the tenant caused. When you do withhold, a clean Missouri security deposit itemization form keeps the list organized and defensible, and a Missouri security deposit return letter documents the refund itself.

Most deposit disputes never reach a courtroom, but when they do in Missouri, they usually land in the small claims division of the circuit court — a forum designed to be used without a lawyer. As of 2026, the Missouri small claims limit is five thousand dollars, which comfortably covers a deposit dispute and the statutory doubling in most cases. Verify the current limit, which the Legislature can adjust over time. If the amount at stake is larger, the associate circuit or circuit court handles the claim instead.

The pattern is consistent: Missouri deposit cases are won on paper. The landlord who documents condition at both ends, gives the required inspection notice, itemizes clearly, keeps receipts, and mails on time rarely loses — and the tenant who keeps their own photos and a copy of the written list is equally well positioned to recover a wrongful withholding, doubled.

Beyond a routine move-out, a handful of situations trip up Missouri landlords because the deposit rules interact with other events. Three come up often.

When the Property Is Sold

If a landlord sells the rental with a tenant in place, the deposit obligation does not evaporate. The prudent course is to transfer the remaining deposit to the buyer at closing, with a written accounting, or to return it to the tenant with an accounting, and to confirm in the sale documents which party holds the deposit going forward. A tenant’s right under Missouri Revised Statutes section 535.300 to a proper accounting and, where warranted, doubled damages, follows the deposit; a buyer who takes over an occupied Missouri property should verify in escrow that deposits were transferred and documented so it does not inherit a return obligation it cannot fund.

Roommates and a Single Deposit

Where several tenants share a lease and a single deposit, Missouri treats the deposit as one sum tied to the tenancy, not as separate shares. When one roommate leaves and another stays, the landlord’s thirty-day obligation is generally triggered only when the tenancy as a whole terminates and the unit is surrendered — not each time one roommate moves out mid-lease. Sorting out each roommate’s share of a refund is usually a private matter among the tenants. Landlords should return the single deposit to the tenants collectively unless the lease or a written agreement directs otherwise, and avoid getting drawn into splitting it.

The Deposit Cap and a Rent Increase

The two-month cap is measured against the rent. If rent later rises, a landlord should not treat the increase as a license to demand more deposit from a sitting tenant to “top up” to two months of the new rent. Landlords weighing a rent increase should review the separate rules that govern it — see our guide to Missouri rent increase laws — and should set the deposit correctly at signing rather than adjusting it every time rent changes.

Every rule above ultimately turns on proof. Missouri places the burden on the landlord to justify each deduction as reasonably necessary, which means the landlord who cannot document a charge loses it — regardless of whether the damage was real. Build the evidence file across the whole tenancy, not at the end.

At Move-In

• A written condition checklist, room by room, signed and dated by the tenant.
• Timestamped photos or video of every wall, floor, fixture, and appliance, stored where the date cannot be doubted.
• A writt