Idaho Security Deposit Law (2026): Deadlines, Interest & Penalties
Idaho law gives landlords a hard deadline: the security deposit must be returned within 21 days of move-out, per Idaho Code § 6-321. On top of the deposit itself, the landlord is not required to pay interest on the deposit. Landlords who blow the deadline face damages + attorney fees. Enter your deposit details above to check your numbers.
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Idaho Deposit Rules at a Glance
| Return deadline | 21 days after move-out 21 days default; up to 30 if agreed in writing |
|---|---|
| Interest on deposit | Not required |
| Separate account required | No |
| Deposit limit | No limit |
| Penalty for violations | Damages + attorney fees Attorney fees / court costs may also be recoverable |
Idaho Security Deposit FAQ
How long does a landlord have to return a security deposit in Idaho?
In Idaho, a landlord must return the security deposit within 21 days after the tenancy ends, under Idaho Code § 6-321. Note: 21 days default; up to 30 if agreed in writing.
Does my landlord owe me interest on my security deposit in Idaho?
No. Idaho law does not require landlords to pay interest on residential security deposits.
What is the penalty if a landlord misses the deposit deadline in Idaho?
Damages + attorney fees. The tenant may also be able to recover attorney fees or court costs. The governing statute is Idaho Code § 6-321.
Is there a limit on how much a landlord can charge as a security deposit in Idaho?
Yes. In Idaho, the security deposit is limited to No limit.
Does an Idaho landlord have to keep my deposit in a separate account?
No. Idaho law does not require landlords to hold security deposits in a separate or escrow account.
Are there exceptions to the 21-day deposit deadline in Idaho?
Yes — the deadline can vary: 21 days default; up to 30 if agreed in writing. When in doubt, check the statute itself (Idaho Code § 6-321) or ask a local tenant-rights organization.
What can I do if my landlord won't return my deposit in Idaho?
First, send a written demand letter citing Idaho Code § 6-321 — our free generator creates one with your amounts filled in. If the landlord still doesn't pay, you can usually file in small claims court, where the penalty exposure is damages + attorney fees.