Idaho Landlord-Tenant Laws (2026): Deposits, Habitability, and Tenant Rights

Idaho has no statutory cap on security deposits and requires landlords to return them within 21 days (or up to 30 days by written agreement). Idaho has no statute requiring advance notice before a landlord enters and does not allow general repair-and-deduct.

Security deposits in Idaho

Idaho law does not cap how much a landlord may charge for a security deposit. A landlord may set the deposit at one month's rent, two months, or more, depending on the rental market and the tenant's creditworthiness. Because there is no cap, tenants should negotiate deposit amounts before signing and document the unit's condition thoroughly at move-in.

Idaho Code 6-321 requires landlords to return the security deposit, along with a written itemized statement of deductions, within 21 days after the tenancy ends. If the written lease allows it, that period can be extended to a maximum of 30 days. Section 6-321 sets that deadline and the itemization requirement but does not itself state a penalty for missing it, and it does not say a late landlord automatically forfeits the right to make deductions. The remedy is not limited to that section, however. Idaho Code 6-320(a)(4) makes failure to return a security deposit as and when required by law an express ground for a tenant action for damages and specific performance, and Idaho Code 6-317 provides that in an action brought under 6-320, judgment may be entered for three times the amount at which the actual damages are assessed. Idaho Code 6-324 entitles the prevailing party to an award of attorney fees, except where treble damages are awarded.

A tenant whose landlord misses the deadline can still pursue a straightforward deposit dispute in small claims court, but the 6-320 route is what carries the treble-damages and fee exposure. One precondition applies to any 6-320 claim, including a deposit claim: under Idaho Code 6-320(d), before a tenant has standing to file, the tenant must give the landlord three days written notice listing each failure or breach the action will be premised on and demanding performance or cure.

When can a landlord enter? Notice rules

Idaho has no statute that specifies how much advance notice a landlord must give before entering a residential rental unit. Courts and housing practitioners treat 24 hours as a reasonable standard, but it is not enforceable as a hard legal deadline under Idaho Code.

Because there is no mandatory notice period, tenants in Idaho are encouraged to include a notice provision in the written lease (for example, 24-hour advance written notice). Entry must still occur at reasonable times under general common-law principles. A landlord may enter immediately in a genuine emergency, such as a fire, flood, or serious structural hazard, without any advance notice. Tenants who experience repeated, harassing, or unreasonable entries should document each incident and seek legal advice.

Ending a lease: notice to vacate

Idaho Code 55-208 governs ending a tenancy at will, which is how a month-to-month arrangement is generally treated. It requires written notice of not less than one month, and Idaho applies that same period to landlord and tenant alike. The statute says one month rather than a flat 30 days, so count forward from the date of the notice instead of assuming 30. Notice should be delivered in writing and timed so that it expires on or before the last day of a rental period. A rent increase or a decision not to renew a residential lease runs on a separate track: Idaho Code 55-304(2) requires at least 30 days' written notice for either.

For fixed-term leases, no additional notice is required; the lease ends on the agreed date. If a landlord needs to terminate a tenancy for nonpayment of rent, failure to cure a lease violation, or other cause, different procedures apply. See the Idaho eviction notice page for the specific notice forms and timelines that apply to each situation.

Repairs and the warranty of habitability

Idaho's habitability duty is codified, not merely an implied warranty of habitability. Idaho Code 6-320(a) lets a tenant file an action against a landlord for damages and specific performance for failure to provide reasonable waterproofing and weather protection of the premises, failure to maintain in good working order electrical, plumbing, heating, ventilating, cooling, or sanitary facilities supplied by the landlord, and maintaining the premises in a manner hazardous to the health or safety of the tenant. A material breach of the rental agreement that affects the tenant's health and safety is a listed ground as well. Landlords must therefore keep rental units safe, weathertight, and functional, and failure to meet that standard is enforceable by the tenant directly.

However, Idaho does not give tenants a general repair-and-deduct remedy. Tenants cannot unilaterally arrange repairs and subtract the cost from rent. The one narrow exception is smoke detectors, and it carries a mandatory procedure. Under Idaho Code 6-320(a)(6), the tenant must first send the landlord written notice by certified mail, return receipt requested, stating that working smoke detectors must be installed. Only if they are not installed within seventy-two hours of receipt of that letter may the tenant buy and install them and deduct the cost from the next month's rent. Detectors bought that way become the property of the landlord and may not be removed from the premises. Skipping the certified-mail step or the 72-hour wait means the deduction is not authorized, and an unauthorized deduction is treated as unpaid rent.

If a landlord refuses to make necessary repairs, Idaho tenants pursue remedies through the courts, either by suing under Idaho Code 6-320 to compel repairs and recover damages, or by seeking to terminate the lease for a material breach. There is a precondition that is easy to miss: under Idaho Code 6-320(d), before a tenant has standing to file, the tenant must give the landlord three days written notice listing each failure or breach the action will be premised on, together with a written demand requiring performance or cure. A tenant who files without serving that notice can have the case dismissed for lack of standing. Where the action is exclusively for specific performance, the statute directs the court to schedule trial within twelve days of the filing of the complaint, and damages awarded under 6-320 may be trebled under Idaho Code 6-317. Contacting local code enforcement is another practical first step when conditions are dangerous.

Rent, late fees, and rent control

Idaho sets no dollar cap on late fees, but it does regulate them by statute rather than leaving the question to general contract principles. Idaho Code 55-305 provides that any fees imposed on a residential tenant, including fees for the late payment of rent, shall be reasonable. The same section bars an owner from charging a fee in an amount greater than the amount agreed upon in the rental agreement, or a fee that is not included in the rental agreement at all, unless the rental agreement is an oral one or the owner gives the tenant written 30 days' notice of the change. Those provisions apply to rental agreements entered into or renewed on or after July 1, 2023, and nothing in the section limits the amount that can be charged for rent itself. Tenants should review the lease carefully before signing to understand what late fees apply and when they kick in.

Idaho law preempts local rent control statewide. Under Idaho Code 55-306, a local governmental unit may not enact, maintain, or enforce an ordinance or resolution that would regulate rent, fees, or deposits charged for leasing private residential property, so no city or county in Idaho can impose a rent cap. For residential leases, Idaho Code 55-304(2) requires the landlord to give written notice of any increase in the rent charged, or of an intention not to renew the lease, at least 30 days before it takes effect. There is no limit on the amount of the increase.

If you have a landlord-tenant dispute in Idaho

Document everything from the beginning. Move-in and move-out inspection reports with photographs are the most valuable evidence in deposit disputes. Send all repair requests, complaints, and notices in writing, and keep copies.

If your landlord withholds your deposit without proper itemization or misses the 21-day (or 30-day) return deadline, you may file in Idaho Small Claims Court. Idaho's small claims limit is $5,000. You do not need an attorney for small claims, and the court filing fee is modest. Bring your lease, move-in photos, and any written correspondence. An action under Idaho Code 6-320 is the alternative route when the amount or the landlord's conduct justifies it, because damages there may be trebled under 6-317 and attorney fees are available under 6-324, but it requires the three days written notice first.

For habitability problems that the landlord will not fix, contact your local county or city code enforcement office. They can inspect the unit and issue a formal notice to the landlord. For more complex disputes or if you need help understanding your rights, Idaho Legal Aid Services provides free or low-cost assistance for qualifying tenants. Consulting a licensed Idaho attorney before withholding rent or terminating a lease is strongly recommended, given the lack of a repair-and-deduct remedy.

This article is general legal information, not legal advice. Landlord-tenant rules vary by state and city and change, and some cities add their own ordinances. For advice about a specific situation, consult a licensed attorney or your state housing agency.

Related pages

• Landlord-Tenant Laws by State (hub)
• Idaho Eviction Notice
• Idaho Squatters Rights

More Idaho Laws

• Idaho Property Records
• Idaho Restraining Order Laws
• Idaho Squatters Rights Laws
• Idaho Unclaimed Property