Idaho Security Deposit Laws: Rules, Limits, and Return Deadlines

Idaho law provides property owners with significant flexibility regarding security deposits. There is no statewide maximum amount you can charge, but there are strict rules governing how money must be handled and returned.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in Idaho for advice specific to your situation. Information last verified: March 2026.

Statutory Limits

Idaho does not set a statutory limit on how much landlords can charge for a security deposit. Property managers and landlords can theoretically set the deposit amount as high as they see fit.

However, standard market practice across Idaho dictates charging the equivalent of one to two months' rent. Charging exorbitant amounts may drive away prospective tenants or raise questions from a judge if the lease terms are ever brought to court.

Holding the Deposit

Unlike some states, Idaho does not require landlords to hold a security deposit in a separate, interest-bearing escrow account unless the property is managed by an independent third-party property management company.

If managed by a third party, funds are generally required to be kept in a federally insured trust account. There is also no requirement for landlords to pay the tenant any interest earned on their security deposit.

Return Deadlines and Procedures

Under Idaho Code § 6-321, a landlord must return the tenant’s security deposit within a strict timeline after the tenant vacates the property:

• Standard Deadline: The deposit must be returned within 21 calendar days of the end of the tenancy.
• Extended Deadline: Landlords can legally extend this return period up to a maximum of 30 days if this extension is expressly agreed upon and stated in the written lease agreement.

Itemized Statement of Deductions

If you choose to withhold any portion of the security deposit, you must provide the former tenant with an itemized statement within the same 21-day (or 30-day) timeframe.

The statement must clearly list:

1. The original amount of the deposit
2. A detailed description of each deduction
3. The specific, actual cost for each item
4. The remaining balance being returned to the tenant

Allowable Deductions

Landlords may deduct funds from the security deposit to cover specific costs, but all terms outlining what can be deducted should ideally be detailed in the lease agreement. Common allowable deductions include:

• Unpaid rent
• Repairing damage caused by the tenant, their guests, or pets that exceeds normal wear and tear
• Unpaid utility bills the tenant was liable for
• Cleaning costs required to bring the property back to the condition it was in when the tenant moved in

Normal Wear and Tear vs. Damage

Landlords cannot deduct money for "normal wear and tear." This term generally refers to the expected deterioration of a property from regular, daily living.

Consequences for Non-Compliance

Failure to adhere to Idaho's 21-day or 30-day return rule can result in significant penalties.

If a landlord fails to return the deposit or provide the itemized statement within the required window, the landlord essentially forfeits their right to keep any portion of the deposit, even if the tenant caused severe damage. A tenant can sue the landlord, and if the judge determines the landlord acted with malice or in bad faith holding the deposit, the tenant may be awarded three times the amount of the deposit wrongfully withheld, plus court costs and attorney fees.

Best Practices for Idaho Landlords

1. Conduct Move-In/Move-Out Inspections: Have the tenant fill out and sign a detailed condition checklist when moving in. Use the same checklist at move-out to easily identify clear damage.
2. Explicitly State the 30-Day Limit: If you need more time to assess repairs, ensure your lease explicitly states that you have 30 days to return the deposit; otherwise, you're bound by the 21-day default.
3. Take Photos: Keep visual proof of the property's condition before the tenant gets the keys and immediately after they hand them back.

How Landager Helps

Landager streamlines the moving-out process by allowing you to digitally track security deposits, manage condition reports with photos, and automatically set reminders for the 21-day or 30-day return window. Keeping your accounting organized prevents costly mistakes and disputes with tenants.

Back to Idaho Landlord-Tenant Laws Overview.