Idaho Landlord-Tenant Law 2026: The Plain-English Guide
Idaho is one of the most landlord-friendly states in the country — not because it grants landlords extraordinary powers, but because the statutes are short, specific, and leave almost everything to the lease. The rental framework lives in Idaho Code Title 6, Chapter 3 (§§ 6-301–6-324, forcible entry and unlawful detainer), with periodic-tenancy rules in Title 55 (§ 55-208). Headline facts: no cap on security deposits, a 21-day return deadline (extendable to 30 by lease agreement, never beyond), 3-day eviction notices for both nonpayment and lease violations, and — critically — no statute governing landlord entry. If it's not in your lease, Idaho law probably doesn't say it.
Security deposits
- No cap. Idaho places no statutory limit on the amount of a security deposit (§ 6-321). Charge what the market bears — but remember that an unreasonably large deposit is a vacancy cost, not a free insurance policy.
- Return within 21 days of the tenant's surrender of the premises — or whatever time the lease fixes, not to exceed 30 days (§ 6-321(2)). The lease can shorten or lengthen the default 21 days, but 30 is the ceiling either way.
- Signed itemized statement required for any refund smaller than the full amount: you must provide a signed statement itemizing the amounts retained, the purpose for each retention, and a detailed list of expenditures made from the deposit (§ 6-321(2)). Undocumented deductions don't survive.
- Normal wear and tear is defined in the statute — deterioration from intended use without negligence, carelessness, accident, or abuse by the tenant, household, or guests (§ 6-321(1)). You may not retain any part of the deposit to cover it.
- Separate accounts: depends who you are. Deposits at properties managed by a third-party manager must sit in a separate federally-insured account (a 2021 amendment, § 6-321(4)). Owner-managers have no segregation requirement, and no one owes the tenant interest.
- Deposits transfer with the property. On a sale, the new owner becomes liable for refunding deposits (§ 6-321(3)) — handle this explicitly at closing.
- The penalty for blowing the deadline: Idaho tenants who sue over an unreturned or unitemized deposit can recover up to three times the deposit plus court costs, and attorney's fees may be awarded where triple damages aren't. Don't treat the 21-day clock as advisory.
- Pet deposits, non-refundable fees, application fees: Idaho has no statutes on any of them. They're allowed, but define them in the lease so they aren't recharacterized as security deposits under § 6-321's broad "any amounts deposited other than rent" rule.
Calendar the deposit deadline the day the tenant surrenders. Use our Security Deposit Deadline Finder, the deductions guide, and the move-in/move-out inspection checklist — Idaho's defined wear-and-tear standard makes good photo documentation your best deduction defense.
Rent rules
- No rent control. Idaho has no state rent-control law and no statutory framework restricting local rent control either — but no Idaho city currently operates one. Raise rent freely between lease terms.
- Rent-increase notice: no dedicated statute. On a month-to-month tenancy, the one month's written notice rule (§ 55-208) effectively functions as the increase notice — send written notice of the increase before the next rental period. See how to raise rent legally.
- No mandatory grace period, no late-fee cap. Late is whatever the lease says, and fees are lease-driven. Idaho landlords commonly use a flat fee plus a daily rate after a short grace period — write the amount, the trigger, and any ceiling into the lease, and keep fees defensible. See how to handle late rent.
- Rent during the lease term cannot be raised. Mid-lease increases are illegal — changes happen only at renewal or under a month-to-month with proper notice.
Eviction in Idaho
Self-help is a bad idea in Idaho even though no single statute brands it: change locks or shut off utilities and you invite a wrongful-eviction claim. File an unlawful detainer action (§§ 6-301–6-324) and let the process run.
- Nonpayment: 3 days' written notice to pay or surrender possession (§ 6-303(2)). Three days means three working days — excluding the day served, weekends, and holidays.
- Lease violations: 3 days' written notice to cure or surrender (§ 6-303(3)). Same business-day counting.
- Drug activity: 24-hour notice where the landlord has reasonable grounds to believe a person is engaged in the unlawful delivery, production, or use of a controlled substance on the premises.
- Service matters: serve the notice in person if possible; if the tenant is absent, leave it with a competent person at the residence and mail a copy. Sloppy service is how evictions get dismissed.
- Retaliation is prohibited and penalized. Retaliatory eviction after a tenant complains or joins a tenant association can cost you one month's rent plus $500, reasonable moving costs, and attorney's fees, plus injunctive relief — and tenants can raise retaliation as a defense in the eviction itself.
Full process: how to evict a tenant and our eviction process guide.
Lease termination and notice periods
- Month-to-month: one month's written notice by either party (§ 55-208). One month means a full rental period — a notice given mid-month doesn't take effect until the following cycle ends.
- Year-to-year and any longer periodic tenancy: one month's written notice as well.
- Week-to-week: no statute — the lease must specify the process.
- Entry rights — this is the Idaho catch. Idaho has no statute on landlord entry notice. The AG's manual says the lease should specify when and how you may enter. Accepted practice is 24 hours' reasonable notice for inspections, repairs, and showings; emergencies permit immediate entry. And note the showing trap: for occupied units, the lease should reserve the right to show the property — without that reservation, access for showings is negotiated case by case. Write a full entry clause (notice method, hours, purposes, emergency exceptions, showing rights) into every Idaho lease. See our lease agreement guide.
- Landlord duty to mitigate: if a tenant breaks the lease early, Idaho requires you to make reasonable efforts to re-rent. Document your re-listing efforts — they determine your damage claim.
Repairs and habitability
Idaho landlords must keep rentals safe, sanitary, and in compliance with housing codes, with repairs addressed promptly after the tenant's written notice (Idaho Code § 6-320):
- Three-day repair standard: landlords are expected to address reported defects within three days of the tenant's written notice. Date-stamp every report the day it arrives.
- Tenant remedies if you don't act: the tenant may sue for costs, seek a court order compelling the repairs, or terminate the rental agreement. Give every tenant a written maintenance-request channel at move-in. See how to handle maintenance requests.
- No general rent withholding. Idaho tenants may not withhold rent over repair disputes. The one statutory exception: tenants may replace smoke detectors and deduct the cost from the next month's rent (§ 6-320(a)(6)).
- Retaliation protection (above) applies to repair complaints — don't raise rent, cut services, or file eviction in response to a maintenance request without an independent, documented basis.
Discrimination and state-specific protections
The federal Fair Housing Act applies in full, and Idaho's own Idaho Human Rights Act (Idaho Code § 67-6509) mirrors the federal protected classes — race, color, national origin, religion, sex, familial status, and disability — with no additional state-level classes. Idaho does not add sexual orientation or gender identity protections statewide. Screen every applicant with identical written criteria and document every decision. Our fair housing guide covers what you can and can't ask, and our tenant screening red flags guide covers what you can act on.
Small-landlord practical tips
1. Your lease is the statute. With no entry-notice law, no grace-period rule, no pet-deposit statute, and no late-fee cap, every protection you want must be written into the lease. Idaho's freedom is a drafting burden — have an Idaho attorney review your template once, then reuse it.
2. Respect the 21-day deposit clock. The lack of a deposit cap doesn't mean lax enforcement — triple-damage exposure makes the deadline the most expensive rule in Idaho's code. Photo-document, itemize, sign, and mail within two weeks of surrender.
3. Third-party managers: segregate the deposits. Since the 2021 amendment, § 6-321(4) requires separate federally-insured accounts for managed properties. If you use a PM company, confirm compliance in writing.
4. Reserve showing rights in the lease. Without an express reservation, showing an occupied unit becomes a negotiation, not a right.
5. Name the deposit-holding institution in the lease. The AG's manual recommends it — cheap insurance against "where is my money" disputes.
6. Count eviction days as business days. Excluding the day of service, weekends, and holidays, a "3-day" notice served Friday effectively runs to the following week. Serve early in the week when you can.
7. Never retaliate. The one-month's-rent-plus-$500 penalty plus fees makes retaliation one of Idaho's most expensive mistakes — and it doubles as an eviction defense.
The bottom line
Idaho is a high-freedom, high-responsibility state: no deposit cap, no late-fee cap, 3-day eviction notices with business-day counting, and no entry statute — your lease carries the entire load the legislature left out. The traps are all in the gaps: miss the 21-day deposit deadline and face triple damages, enter without the lease's permission and face an injunction, retaliate and pay a month's rent plus $500.
Write the definitive lease once — entry clause, deposit terms, late fees, showing rights, notice methods — then run the playbook: serve 3-day notices by the business-day clock, calendar the 21-day deposit deadline, respond to repair notices within three days, and keep everything documented. For a small landlord, Idaho rewards the organized and punishes the casual.
This is general information, not legal advice. Consult an Idaho landlord-tenant attorney for specific situations.