Washington documents
Washington Residential Lease Agreement
When the lease must be in writing, the disclosures that ride with it, and the 5% parity rule between month-to-month and fixed terms.
Reviewed September 2026 • Statewide resource
Before you use any document on this page: we recommend having your attorney review it first. Laws and required forms change, city ordinances add requirements on top of state law, and a notice that is defective in form or timing can cost far more than a legal review. This page is general information for property owners, not legal advice.
Washington will let you rent on a handshake — right up until money changes hands as a deposit. Under RCW 59.18.260, if any deposit is collected, the rental agreement must be in writing and must state the terms and conditions under which the deposit may be withheld. No written agreement, no lawful deposit.
Since Washington's rent stabilization law took effect in May 2025, the lease also carries a parity rule: a tenant may not be charged more than a 5% difference in rent based on the type of rental agreement, so a month-to-month tenant cannot be priced more than 5% above the annual-lease rate for the same unit, nor made to accept more burdensome payment terms because of the agreement type.
Disclosures that ride with the lease
RCW 59.18.060 requires landlords to provide tenants with Department of Health-approved information on the health hazards of indoor mold — individually in writing or posted visibly at the property. Federal law adds the lead-based-paint disclosure for pre-1978 housing. And for leases entered into after December 31, 2026, RCW 59.18.060(13) adds a further disclosure requirement — a change worth asking your attorney about now if you are preparing 2027 renewals.
What to have reviewed
The deposit-withholding terms (they control what you may later deduct), the fee schedule (Seattle caps late fees at $10 a month and Tacoma at 1.5% of unpaid rent, so one form lease across cities is a trap), and any clause that touches termination — statewide just cause under RCW 59.18.650 overrides lease language that pretends otherwise.
City layers
Seattle requires RRIO registration before a unit is rented at all and caps move-in charges; Tacoma requires unit registration under its business license; Bellingham and Vancouver require rental registration. The city pages carry the specifics.
Official sources for this document
The writing requirement and the deposit-withholding terms the lease must state.
app.leg.wa.gov
The mold-information duty and the disclosure rules for leases signed after 2026.
app.leg.wa.gov
The 5% limit on rent differences between lease types and the prohibition on more burdensome payment terms.
app.leg.wa.gov
The approved mold-hazard information the disclosure duty refers to.
doh.wa.gov
Federal disclosure materials for pre-1978 housing.
www.epa.gov
Plain-language guidance on the statewide cap, first-year rule and notice timeline.
www.atg.wa.gov
Frequently asked questions
Does a Washington lease have to be in writing? +
It must be in writing if you collect any deposit: RCW 59.18.260 conditions the deposit on a written agreement stating the withholding terms, plus a signed condition checklist.
Can I charge month-to-month tenants a premium? +
Only up to 5%. Washington's rent stabilization law prohibits charging more than a 5% difference in rent based on the type of rental agreement, and prohibits more burdensome payment terms for one type.
What disclosures does a Washington lease need? +
Department of Health mold information (written or posted), the federal lead-paint disclosure for pre-1978 homes, and — for leases entered into after December 31, 2026 — the added disclosures in RCW 59.18.060(13). Cities add their own packet requirements.
Sources
Every figure on this page traces to one of these. Rent caps change annually and city ordinances change by council action — check the current figure before serving a notice.
- RCW 59.18.260 — verified 2026-09-11
- RCW 59.18.060 — verified 2026-09-11
- RCW 59.18.700 — rent cap and lease-type parity — verified 2026-09-11
- AGO — Know Your Responsibilities: HB 1217 (landlord flyer) — verified 2026-09-11
This page is general information for property owners, not legal advice, and it does not create an attorney-client relationship. Rules differ by property and by circumstance — consult an attorney licensed in Washington before acting on a notice, an eviction or a deposit dispute.
We serve these notices every week
Utopia Management has managed Washington rentals since 1994. Compliance with the notice periods, the caps and the paperwork above is part of full management, not an extra.
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