§PlainStatute

Tools · Security Deposit

Idaho Security Deposit Calculator (2026)

Enter your rent and move-out date to see the most a Idaho landlord can charge and the exact date your deposit is due back — no statutory cap here, returned 21 days by default, up to 30 days if the agreement sets a longer time after the tenant surrenders the premises.

Cited to Idaho Code §§6-321, 6-324Source: Idaho Legislature, Idaho Code §6-321 (security deposits) and §6-324 (attorney fees).

Idaho security deposit calculator

Security deposit · Idaho
Idaho rule applied to your numbers
Maximum deposit
No cap
Idaho sets no statutory maximum; your lease sets the amount. Idaho has no statutory cap on the size of a residential security deposit. Idaho Code 6-321 governs how a deposit is held and returned but says nothing about the amount, so the figure is left to the lease.
Return deadline
21 days by default, up to 30 days if the agreement sets a longer time
21 days by default, up to 30 days if the agreement sets a longer time after the tenant surrenders the premises. Enter your move-out date for the exact deadline.

These are the Idaho figures applied to what you entered: a plain summary of the rule and the dates, not a determination that anyone did or did not comply.

If a deposit is wrongly kept
If the landlord does not return the deposit or provide the required itemized statement on time, they lose the right to keep any part of it, and the tenant can sue to recover what was wrongfully withheld. Under Idaho Code 6-324, the prevailing party in a suit under this chapter is entitled to reasonable attorney fees, so a tenant who wins can recover the deposit plus fees and court costs. Idaho Code 6-321 itself does not add a separate treble-damages penalty.
Interest on the deposit
Idaho law does not require a landlord to pay interest on a security deposit. Idaho Code 6-321 is silent on interest, so none is owed unless the lease promises it.

Informational only, not legal advice. Security-deposit rules carry exceptions (lease type, small landlords, city ordinances) this summary cannot weigh. See the full statute and exceptions on the Idaho security deposit reference, cited to Idaho Code §§6-321, 6-324.

How Idaho security deposits work

Idaho puts no statutory cap on a residential security deposit, so a landlord may ask for whatever the lease sets, though one to two months of rent is common. The core rule is the return deadline: under Idaho Code 6-321 the deposit must come back within 21 days if the agreement fixes no time, and within 30 days in every case, after you surrender the unit. If the landlord keeps any part of it, they have to send a signed statement itemizing each amount, the reason, and how the money was spent, and they cannot bill you for normal wear and tear. Idaho does not require interest on the deposit, and only a third-party manager, not an ordinary landlord, must hold it in a separate federally insured account. Miss the deadline or skip the itemized statement and the landlord loses the right to keep any of the deposit. If you have to sue, Idaho Code 6-324 lets the winning party recover reasonable attorney fees, so a successful tenant gets the deposit back plus fees and costs.

This calculator shows the Idaho figures applied to your own rent and dates. It is informational only and not legal advice — exceptions this summary cannot weigh may apply. For the full rules, penalties, and citations, see the Idaho security deposit reference.

Security deposit calculators for other states

Same tool, each with its own cap and return deadline.