Disclaimer: This article is general information, not legal advice. Landlord-tenant law changes frequently, and how it applies depends on your specific situation and local ordinances. Always verify the current law and consult a licensed Washington attorney before acting. Wilson Management, Inc. is a property management company, not a law firm.
Owning rental property in Washington means navigating one of the most tenant-protective legal frameworks in the country, and the rules keep changing. Between the statewide rent cap that took effect in 2025 and a steady stream of legislative updates, staying compliant is harder than it has ever been. This guide walks owners through the essentials of Washington landlord tenant law 2026 so you can understand your obligations and protect your investment.
At Wilson Management, Inc., we have managed Bellevue-area rental property since 1982. We built this overview to help owners see the big picture. For the details that govern your property, talk to an attorney and your property manager.
The Residential Landlord-Tenant Act (RCW 59.18)
Most residential rentals in Washington are governed by the Residential Landlord-Tenant Act, codified at Chapter 59.18 of the Revised Code of Washington. The core provisions, RCW 59.18.010 through 59.18.420 and 59.18.900, are known as the Residential Landlord-Tenant Act of 1973 (Source: RCW 59.18, app.leg.wa.gov, accessed 2026). The Act sets the baseline rules for rental agreements, landlord duties, tenant remedies, deposits, entry, and eviction.
The Act also imposes a duty of good faith: every duty under the chapter and every act required as a condition of exercising a right or remedy carries an obligation of good faith in its performance or enforcement (Source: RCW 59.18, app.leg.wa.gov, accessed 2026). For owners, the practical takeaway is that the RLTA is the floor, and many cities layer additional requirements on top of it.
If you are new to renting out property in Washington, our first-time landlord guide is a helpful companion to this overview.
Required disclosures
Washington requires landlords to give tenants specific disclosures, generally at the start of the tenancy. Commonly required disclosures include:
- Mold. Landlords must provide tenants information approved by the Department of Health about the health hazards of indoor mold and how to control mold growth. This can be given individually in writing or posted in a visible, public location at the property (Source: RCW 59.18.060, app.leg.wa.gov, accessed 2026).
- Fire safety / smoke detection. Landlords must give written notice that the unit is equipped with a smoke detection device, the tenant's responsibility to maintain it, and the penalties for noncompliance. The notice must be signed by both parties (Source: RCW 59.18.060 referencing RCW 43.44.110, app.leg.wa.gov, accessed 2026).
- Lead-based paint. Under federal law, rentals built before 1978 require lead-paint disclosure and the EPA pamphlet "Protect Your Family from Lead in Your Home" (Source: U.S. EPA / federal lead disclosure rule, accessed 2026).
- Landlord identity. Landlords must disclose their name and address (or an authorized local agent) so tenants know where to direct notices (Source: RCW 59.18.060, app.leg.wa.gov, accessed 2026).
Security deposits and fees
If a landlord collects a deposit, the rental agreement must be in writing and state the terms under which the deposit is refundable. The landlord must also provide a written move-in checklist documenting the unit's condition; collecting a deposit without one can make the landlord liable for the deposit amount (Source: RCW 59.18.260, app.leg.wa.gov, accessed 2026).
After a tenant moves out, the landlord has 30 days to either return the deposit or send a written statement explaining any deductions, postmarked by the 30th day. This deadline was extended from 21 to 30 days effective July 23, 2023 (Source: RCW 59.18.280, app.leg.wa.gov, accessed 2026). For tenancies starting on or after July 23, 2023, deduction claims must be accompanied by documentation such as receipts, invoices, or estimates (Source: RCW 59.18.280, app.leg.wa.gov, accessed 2026).
Because deposit disputes are a frequent source of litigation, we cover this topic in depth in our Washington security deposit law guide.
Habitability and repairs
Landlords must keep rental units fit for human habitation. The RLTA requires owners to maintain structural components, weatherproofing, plumbing, electrical, heating, and other essential systems, and to make repairs to keep the unit habitable (Source: RCW 59.18.060, app.leg.wa.gov, accessed 2026). When a landlord fails to make required repairs after proper notice, tenants have statutory remedies, which may include repair-and-deduct or, in some cases, terminating the tenancy.
Documenting the unit's condition at move-in and responding promptly to maintenance requests are the best ways to limit habitability disputes.
Entry and notice
A landlord may not enter a rented unit at will. Except in an emergency or where it is impracticable, the landlord must give the tenant at least two days' written notice of intent to enter, and may enter only at reasonable times (Source: RCW 59.18.150, app.leg.wa.gov, accessed 2026). For showings to a prospective tenant or purchaser, the notice period is one day (Source: RCW 59.18.150, app.leg.wa.gov, accessed 2026).
The entry notice must state the exact date(s) and time(s) of entry (or a window with earliest and latest times) and provide a phone number the tenant can use to object or reschedule (Source: RCW 59.18.150, app.leg.wa.gov, accessed 2026). Landlords may not abuse the right of access or use it to harass a tenant.
Rent increases and the HB 1217 cap
The biggest recent change in Washington rental laws is statewide rent stabilization. House Bill 1217 was signed into law on May 7, 2025 (Source: WA Dept. of Commerce, HB 1217 Landlord Resource Center, accessed 2026).
Key points for owners:
- A landlord may not increase rent during the first 12 months of a tenancy (Source: WA Dept. of Commerce, accessed 2026).
- After that, increases in any 12-month period are capped at 7% plus CPI, or 10%, whichever is less (Source: WA Dept. of Commerce / RCW 59.18.700, accessed 2026).
- For the period January 1, 2026 through December 31, 2026, the maximum increase is 9.683%, based on the June 12-month change in the Seattle-area CPI for all urban consumers (Source: WA Dept. of Commerce, accessed 2026; corroborated by Multifamily NW, accessed 2026).
- Landlords must give at least 90 days' written notice before raising rent for fixed terms ending on or after August 5, 2025 (Source: Multifamily NW summary of HB 1217, accessed 2026).
- Certain properties are exempt, as defined in RCW 59.18.710 (Source: WA Dept. of Commerce, accessed 2026).
A separate, lower annual cap may apply to manufactured/mobile home lots.
For a deeper breakdown of the cap, exemptions, and notice mechanics, see our dedicated Washington rent cap (HB 1217) article.
Just-cause eviction and the eviction process
Washington follows a just-cause framework: a landlord generally may not evict a tenant, refuse to continue a tenancy, or end a periodic tenancy except for specific causes enumerated in the statute (Source: RCW 59.18.650, app.leg.wa.gov, accessed 2026). Reported causes include nonpayment, material lease violations, nuisance or illegal activity, and owner move-in or substantial rehabilitation, among others (Source: RCW 59.18.650, app.leg.wa.gov, accessed 2026).
Notices must be served consistently with RCW 59.12.040 and must identify the facts supporting the cause with sufficient specificity (Source: RCW 59.18.650, app.leg.wa.gov, accessed 2026). The penalties for wrongful eviction are significant: a landlord who unlawfully removes a tenant may be liable for the greater of the tenant's damages or three times the monthly rent, plus reasonable attorneys' fees and costs (Source: RCW 59.18.650, app.leg.wa.gov, accessed 2026).
For nonpayment specifically, tenants are generally entitled to a pay-or-vacate notice period before an eviction can proceed. Eviction in Washington is a court process (an unlawful detainer action), and self-help eviction is illegal. We walk through each step in our Washington eviction process guide.
Fair housing
Washington landlords must comply with federal and state fair housing laws, which prohibit discrimination based on protected classes such as race, color, national origin, religion, sex, familial status, and disability, with additional protected classes recognized under state law. Many Washington jurisdictions also restrict source-of-income discrimination, meaning landlords generally cannot refuse an applicant solely because they use a housing subsidy. Our Washington Fair Housing Act overview goes further on screening, advertising, and reasonable accommodations.
Local ordinances vary
State law is only part of the picture. Cities including Seattle and Tacoma have adopted their own landlord-tenant ordinances that add requirements beyond the RLTA, such as longer notice periods, just-cause rules, relocation assistance, and registration or licensing. Before you set policy at a property, confirm what the local jurisdiction requires, because the stricter rule usually controls.
Recent 2025-2026 changes
The headline change is HB 1217's statewide rent cap and the 90-day rent-increase notice requirement, effective in 2025 (Source: WA Dept. of Commerce, accessed 2026). The 2026 cap figure of 9.683% is set for the calendar year (Source: WA Dept. of Commerce, accessed 2026). Combined with the 2023 extension of the deposit-return deadline to 30 days (Source: RCW 59.18.280, app.leg.wa.gov, accessed 2026), the compliance bar for owners has risen meaningfully.
How Wilson Management keeps owners compliant
Compliance is operational, not occasional. Wilson Management, Inc. has helped Bellevue-area owners stay on the right side of Washington's rules since 1982. We maintain current lease documents and disclosures, calculate and notice rent increases within the HB 1217 cap, handle deposits and move-out accounting on the statutory timeline, coordinate habitability repairs, and manage the eviction process through counsel when it becomes necessary. Our president, Gary E. Wilson, leads a team focused on protecting owners' investments while keeping tenancies on solid legal footing.
If you would rather not track every statutory deadline yourself, we can help.
Frequently Asked Questions
1. What law governs most rentals in Washington?
The Residential Landlord-Tenant Act, RCW Chapter 59.18, sets the baseline rules statewide (Source: RCW 59.18, app.leg.wa.gov, accessed 2026). Local ordinances may add stricter requirements.
2. How much can I raise the rent in 2026?
For tenancies past their first 12 months, increases are capped at 7% plus CPI or 10%, whichever is less, and the 2026 maximum is 9.683% (Source: WA Dept. of Commerce, accessed 2026).
3. How much notice do I need to give before a rent increase?
At least 90 days' written notice for fixed terms ending on or after August 5, 2025 (Source: Multifamily NW summary of HB 1217, accessed 2026).
4. How long do I have to return a security deposit?
30 days from when the tenancy ends and the tenant vacates, postmarked by the 30th day, with a written statement for any deductions (Source: RCW 59.18.280, app.leg.wa.gov, accessed 2026).
5. How much notice before entering a unit?
At least two days' written notice for most entries, and one day for showings, except in emergencies (Source: RCW 59.18.150, app.leg.wa.gov, accessed 2026).
6. Can I evict a tenant for any reason?
No. Washington requires just cause; a landlord may only end a tenancy for a cause enumerated in RCW 59.18.650, with proper notice (Source: RCW 59.18.650, app.leg.wa.gov, accessed 2026). Wrongful eviction carries steep penalties.
Ready to simplify compliance?
Washington's rules are not getting simpler. Let Wilson Management, Inc. handle the day-to-day so you stay compliant and your property stays profitable.
Disclaimer: This article is general information, not legal advice, and may not reflect the most recent changes in the law. Verify current statutes and consult a licensed Washington attorney before acting on anything in this guide.
Sources
- Chapter 59.18 RCW, Residential Landlord-Tenant Act — https://app.leg.wa.gov/RCW/default.aspx?cite=59.18 (accessed 2026)
- RCW 59.18.060, landlord duties / disclosures — https://app.leg.wa.gov/rcw/default.aspx?cite=59.18.060 (accessed 2026)
- RCW 59.18.150, landlord's right of entry — https://apps.leg.wa.gov/Rcw/default.aspx?cite=59.18.150 (accessed 2026)
- RCW 59.18.260, deposits — https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.260 (accessed 2026)
- RCW 59.18.280, deposit return / accounting — https://app.leg.wa.gov/rcw/default.aspx?cite=59.18.280 (accessed 2026)
- RCW 59.18.650, just-cause eviction — https://app.leg.wa.gov/rcw/default.aspx?cite=59.18.650 (accessed 2026)
- Washington Dept. of Commerce, HB 1217 Landlord Resource Center — https://www.commerce.wa.gov/housing-policy/hb1217-landlord-resource-center/ (accessed 2026)
- Washington State Attorney General, Landlord-Tenant — https://www.atg.wa.gov/landlord-tenant (accessed 2026)
- Multifamily NW, New Rent Increase Limits for Washington State (2025-2026) — https://www.multifamilynw.org/news/new-rent-increase-limits-for-washington-state-2025-2026 (accessed 2026)