Ohio puts almost all of its residential security-deposit rules in a single statute, Ohio Rev. Code § 5321.16, and it carries more teeth than landlords expect. A landlord has 30 days after the tenancy ends to return the deposit with an itemized list of any deductions — and a landlord who wrongfully withholds part of it is liable for double the wrongfully-withheld amount plus the tenant's attorney's fees. There's also an interest rule that catches larger deposits. Here's how the whole section works.
The 30-day return and the forwarding-address trigger
Under Ohio Rev. Code § 5321.16(B), within 30 days after the rental agreement terminates and the tenant delivers possession, the landlord must return the deposit and provide the tenant written notice itemizing any deductions and showing the amount due. Two details matter:
- The clock starts on termination and surrender of possession — not the lease's paper end date if the tenant leaves early, and not the day the landlord gets around to inspecting.
- The tenant must give a forwarding address in writing. A tenant who never provides a written new address forfeits the remedies in subsection (C) below. So the penalty machinery only runs for a tenant who did their part — but a landlord shouldn't count on that, because the address requirement is easy to satisfy.
Permitted deductions are the usual: past-due rent and damage the tenant is responsible for, not ordinary wear and tear. Whatever is deducted has to appear on the itemized list.
The 5% interest rule most Ohio landlords miss
Ohio Rev. Code § 5321.16(A) adds a wrinkle few generic leases handle. If the deposit exceeds $50 or one month's rent — whichever is greater — and is held for six months or more, the portion above that floor must bear interest at 5% per year, "computed and paid annually by the landlord to the tenant."
In practice: a small deposit ($50 or less, or one month's rent or less) earns nothing, and nothing is owed on a short tenancy. But on a long tenancy with a larger deposit, the landlord owes 5% per year on the excess, paid out annually — not held until move-out. Missing this is a quiet, recurring violation that compounds over a multi-year lease.
Double damages — and why an itemized list won't always save you
Ohio Rev. Code § 5321.16(C) is the enforcement hammer. If the landlord wrongfully withholds, the tenant recovers the property and money due together with damages equal to the amount wrongfully withheld, and reasonable attorney's fees. Read plainly, that's the withheld money back plus damages equal to it — effectively double the wrongfully-withheld amount, and the tenant's legal fees on top.
The Ohio Supreme Court removed any doubt in Smith v. Padgett, 32 Ohio St.3d 344 (1987). Two holdings drive the risk:
- The double-damages-plus-fees liability is mandatory where a court finds an amount was wrongfully withheld — even if the landlord provided an itemized list. Itemizing is required, but it is not a shield: if a listed deduction turns out to be improper, the penalty still applies to that amount.
- The double damages and fees attach only to the portion wrongfully withheld, not the entire deposit. A landlord who properly documents and deducts $300 from a $1,000 deposit and timely returns the $700 balance isn't penalized on the $300 if the deduction was justified.
The lesson for landlords: the itemized list is the floor, not the finish line. Every deduction on it has to be one you could defend as legitimate, because the ones that aren't carry a 2× cost plus the tenant's lawyer.
No cap — but the mechanics do the work
Ohio sets no statutory ceiling on the deposit amount itself. That freedom is exactly why the return, interest, and penalty rules matter so much: the bigger the deposit, the bigger the 5% interest obligation and the larger the double-damages exposure if the move-out accounting goes wrong.
For how another state runs the same 30-day return clock with different penalties, compare Florida's 15-day / 30-day deposit rule.
Common mistakes
Counting from the lease end date, not surrender. The 30-day clock in § 5321.16(B) runs from termination and delivery of possession.
Skipping the 5% interest. For deposits above the $50/one-month floor held six months or more, § 5321.16(A) requires 5% annual interest, paid each year — not a move-out afterthought.
Treating the itemized list as a shield. Under Smith v. Padgett, an itemized list doesn't prevent double damages on a deduction a court finds improper.
Deducting for ordinary wear and tear. Only past-due rent and tenant-caused damage are deductible; routine aging of the unit is the landlord's cost.
Build a compliant Ohio lease — $29 one-time, generated in minutes, with the § 5321.16 deposit-return terms, the interest-handling language, and your itemization framework built in.
Statutory references
- Ohio Rev. Code § 5321.16(A) — 5% annual interest on the portion of a deposit exceeding $50 or one month's rent (whichever is greater) held six months or longer; paid annually.
- Ohio Rev. Code § 5321.16(B) — 30-day deadline (from termination and delivery of possession) to return the deposit and provide an itemized written statement of deductions; tenant's written-forwarding-address precondition.
- Ohio Rev. Code § 5321.16(C) — tenant's recovery of the amount wrongfully withheld plus damages equal to it (double) and reasonable attorney's fees.
- Smith v. Padgett, 32 Ohio St.3d 344, 513 N.E.2d 737 (1987) — double damages and fees are mandatory on wrongfully-withheld amounts even when the landlord gave an itemized list; the penalty reaches only the wrongfully-withheld portion.