Oklahoma Security Deposit Law: Limits, Deadlines, and Penalties
What Oklahoma landlords can charge, when deposits must be returned, and what it costs to get it wrong. Last reviewed 2026-08-12.
How much can a landlord charge in Oklahoma?
Oklahoma law places no cap on the amount of a security deposit. Landlords commonly charge one month's rent, but that is market practice, not a legal requirement.
There is no statutory limit on pet deposits; a refundable pet deposit is part of the security deposit and must be held in the same Oklahoma escrow account and returned under the same rules.
When must the deposit be returned?
The landlord must return the deposit balance within 45 days after the tenancy ends, the tenant vacates, and the tenant makes a written demand for it. The clock does not start until the tenant demands the money in writing. If the tenant makes no written demand within six months of the tenancy ending, the deposit becomes the landlord's property.
If the landlord applies any part of the deposit to unpaid rent or damages, the landlord must give the tenant a written, itemized statement of the deductions along with the remaining balance.
What happens if a landlord misses the deadline?
Misappropriating a security deposit (using it before entitled, or failing to keep it in escrow) is punishable by up to six months in county jail and a fine of up to twice the amount misappropriated. There is no statutory double- or treble-damage civil multiplier; a tenant can sue to recover the amount wrongfully withheld.
Interest and holding requirements
Oklahoma does not require landlords to pay interest on security deposits, and the tenant has no claim to interest earned on the escrow account.
Escrow is mandatory: every security deposit must be kept in an escrow account for the tenant, maintained in Oklahoma at a federally insured financial institution. Commingling deposit funds with personal or operating funds is unlawful.
What Oklahoma landlords get wrong
Oklahoma is unusual in two ways small landlords must know: the escrow account is not optional — keeping a deposit in your personal checking account is a crime, not just a civil violation — and the 45-day return clock only starts when the tenant demands the deposit in writing. If the tenant never sends a written demand within six months of move-out, you may lawfully keep the deposit. Document that timeline carefully; do not spend deposit funds before you are legally entitled to them.
The law itself
Frequently asked questions
How long does an Oklahoma landlord have to return a security deposit?
Forty-five days — but the clock starts only after the tenancy ends, the tenant moves out, and the tenant makes a written demand for the deposit. A phone call or text is not enough; the demand must be in writing. If any amount is withheld, the landlord must include a written itemized statement of deductions with the balance.
Does a security deposit have to be kept in a separate account in Oklahoma?
Yes. Oklahoma requires every security deposit to sit in an escrow account at a federally insured financial institution located in Oklahoma. Mixing deposit money with personal or business funds is misappropriation — a misdemeanor punishable by up to six months in county jail and a fine of up to twice the amount misappropriated.
What happens if a tenant never asks for their deposit back in Oklahoma?
The tenant forfeits it. Under 41 O.S. § 115, if the tenant does not make a written demand within six months after the tenancy ends, the deposit becomes the landlord's property. Tenants should send a written demand with a forwarding address immediately after moving out to start the 45-day return clock.
Is there a limit on security deposits in Oklahoma?
No. Oklahoma sets no maximum on security deposits or pet deposits. Landlords typically charge one month's rent because the market expects it, but the law does not require any particular amount. Whatever you collect must go into an Oklahoma escrow account and be returned under the 45-day written-demand rules.
Keep reading
Deposit deadlines are easy to miss — until they cost you triple.
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Start Free TrialThis page is general information, not legal advice. Statutes change — verify against the official text linked above or consult a local attorney before acting.