A 90-day notice to terminate tenancy in Washington is a written notice a landlord can use to end a month-to-month or fixed-term tenancy, but only for two reasons spelled out in RCW 59.18.650: the owner or an immediate family member intends to move into the unit, or the owner intends to sell a single-family home. No other reason supports a 90-day notice. The statute also controls what the notice must say, how it must reach you, and what the landlord has to do after you leave. A notice that misses any of those pieces can be challenged, and a landlord who uses the notice as a pretext owes the tenant money.
The Two Allowed Reasons
Washington’s Residential Landlord-Tenant Act bars landlords from ending a tenancy without a legally recognized cause. The statute lists many causes with their own notice periods; only two carry the 90-day timeline.
Owner or Immediate Family Move-In
The owner, or an immediate family member, intends to occupy the unit as a primary residence. Immediate family under the statute includes a spouse, state-registered domestic partner, parents, grandparents, children (including foster children), siblings, and in-laws.1Washington State Legislature. Washington Code 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy This ground has a built-in limit: it is not available if a substantially equivalent vacant unit exists in the same building. An owner of a four-unit property with an identical empty apartment cannot displace you under this reason.
Sale of a Single-Family Residence
The owner intends to sell a single-family residence. The 90-day notice goes out in advance, and once you vacate the owner must make reasonable efforts to sell—at minimum, listing the home at a reasonable price with a real estate agency or on the multiple listing service within 30 days of your move-out.1Washington State Legislature. Washington Code 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy This ground is only for single-family homes. Apartment buildings and other multi-unit rentals do not qualify.
One point of confusion worth clearing up: demolition, substantial rehabilitation, and permanently removing a unit from the rental market are not 90-day situations. Those require a 120-day notice under separate rules.2Washington Law Help. Eviction Notices
What a Valid Notice Must Say
A 90-day notice is more than a letter announcing the end of the lease. The statute requires it to state that the tenancy is being terminated, give the exact date your possession ends (at least 90 full days out from delivery), identify the specific legal ground, and set out the facts and circumstances supporting that ground with enough detail that you can understand the reason and respond to it.1Washington State Legislature. Washington Code 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy A one-liner saying “the owner wishes to sell” without identifying the home as a single-family residence or offering any supporting facts may not clear the bar.
How the Notice Must Be Delivered
A well-drafted notice can still fail if it is served incorrectly. The most direct method is personal service, where the notice is physically handed to the tenant. If reasonable attempts at personal service fail, the landlord can use substitute service, leaving the notice with another person of suitable age and discretion at the property and also mailing a copy. The last-resort method is post and mail: securely affixing the notice to a conspicuous spot on the property, such as the front door, and mailing a copy by certified mail.
If you believe service was improper, that is a defense you can raise in court. Landlords in turn should keep delivery records (process server affidavits, signed acknowledgments, certified mail receipts), because they carry the burden of proving proper service.
What You Still Owe During the 90 Days
Your tenancy does not pause after the notice is served. Rent is still due on time, and the landlord’s acceptance of rent during the 90 days does not waive the notice or restart the clock. All other lease terms—noise rules, pet rules, maintenance obligations—continue to apply.
The landlord’s obligations also continue. The home must stay habitable, repairs must be made, and essential services must be maintained. If the home is being sold, expect showings. Washington requires at least two days’ written notice before the landlord enters, with the exact time and date and a phone number you can use to object or reschedule; for showings to prospective buyers or renters specifically, the minimum is one day’s notice, and you cannot unreasonably refuse access.3Washington State Legislature. Washington Code RCW 59.18.150 – Landlords Right of Entry A landlord who schedules excessive showings or abuses entry rights may be liable for interfering with your enjoyment of the home.
Signs the Notice Was Issued in Bad Faith
Both grounds have accountability rules, and this is where many landlords get caught.
If the notice was based on owner or family move-in, the owner or family member must actually live in the unit as a primary residence for at least 60 consecutive days during the first 90 days after you move out. If they do not, the law creates a rebuttable presumption that the landlord acted in bad faith.1Washington State Legislature. Washington Code 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy That means the court will assume bad faith unless the landlord proves otherwise.
If the notice was based on sale, bad faith is presumed when the owner fails to list the home at a reasonable price within 30 days of your move-out. A second trigger applies if, within 90 days after you leave or the home is listed (whichever comes later), the owner pulls the listing, re-rents to someone else, or otherwise shows the sale was never the real plan.1Washington State Legislature. Washington Code 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy
A landlord who removes a tenant in violation of the statute is liable for wrongful eviction. The tenant recovers the greater of actual economic and noneconomic damages or three times the monthly rent, plus reasonable attorney’s fees and court costs.1Washington State Legislature. Washington Code 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy If you suspect the notice was a pretext to re-rent at a higher price, document everything: screenshots of new listings, communications with the landlord, dates and timelines.
If You Live in a City With Relocation Assistance
There is no statewide relocation payment tied to a 90-day notice. State law does authorize cities and counties planning under the Growth Management Act to require landlords to pay relocation assistance to low-income tenants displaced by demolition, substantial rehabilitation, or change of use.4Washington State Legislature. Washington Code RCW 59.18.440 – Relocation Assistance for Low-Income Tenants Local ordinances vary. Seattle, for example, requires $5,354 in relocation assistance for qualifying low-income tenants, split evenly between the owner and the city.5City of Seattle. Tenant Relocation Assistance Ordinance Check with your city before assuming a payment is or is not available in your situation.
Extra Protection at Federally Backed Properties
If your building has a federally backed mortgage or participates in a federal housing program—public housing, Housing Choice Vouchers, USDA Rural Development housing, or the Low-Income Housing Tax Credit program among them—the CARES Act requires at least 30 days’ notice to vacate before you can be made to leave. The requirement has no expiration date.6Office of the Law Revision Counsel. 15 USC 9058 – Temporary Moratorium on Eviction Filings A Washington landlord giving a full 90 days already satisfies that federal floor. The provision matters most when a state-law notice is successfully challenged: even then, you are entitled to the 30-day federal minimum. If you are unsure whether your building is covered, ask the landlord or a local legal aid organization.
After You Move Out: Deposit Return
Once you have vacated, the landlord has 30 days to return your security deposit or provide a full, specific written statement explaining any amount withheld. The statement must be delivered personally or mailed to your last known address with first-class postage.7Washington State Legislature. Washington Code RCW 59.18.280 – Moneys Paid as Deposit or Security for Performance Normal wear and tear cannot be deducted. Photograph the home on move-out day; it is the single best protection against disputed charges later.
If You Stay Past the Deadline
A tenant who remains after the termination date is holding over unlawfully, and the landlord can sue to recover possession and any damages caused by the holdover.8Washington State Legislature. Washington Code RCW 59.18.290 – Removal or Exclusion of Tenant From Premises That lawsuit is called an unlawful detainer action. The prevailing party can recover attorney’s fees and costs, so staying without a legal basis can leave you owing both sides’ legal bills.
You still have the right to defend if you believe the notice is defective. Common defenses are improper service, failure to state a valid legal ground with enough factual detail, and evidence that the landlord acted in bad faith. If the landlord cannot show the notice met every statutory requirement, the court can dismiss the case.