RRentDemand
Washington · RCW 59.18.140(3)

Washington Notice of Rent Increase

Fill in the facts once. RentDemand computes the 30-day period from your service date, warns you about the Washington traps below, and hands you a print-ready document with a proof of service.

30 day period3 days added for mailRCW 59.18.140(3)
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Who and where

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Money owed

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The violation

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Grounds

An unconditional notice offers no chance to fix the problem, and is only available for conduct that cannot be cured — nuisance, waste, illegal activity, or a repeat of a breach already cured. If the tenant could fix it, use Cure or Quit instead.
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Ending the tenancy

This is a no-cause termination. Many cities require just cause, and some require relocation assistance. Verify locally before serving.
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The increase

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The visit

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The deposit

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Where to send your notice

We email the finished notice here as soon as it is paid for, so you still have it if you close this page. Paying by card collects it automatically — this is only needed if you pay another way.

Washington Notice of Rent Increase: what the statute actually requires

Washington requires at least 30 days written notice of a rent increase. Seattle requires 180 days, and other cities have enacted their own longer periods — check the city where the unit sits.

30
days, statutory default
3
days added if served by mail
—
no statutory hour period

Authority: RCW 59.18.140(3) — read the Washington code

Where Washington landlords get this wrong

Local rules that sit on top of Washington law

A notice that is perfect under the state statute still fails if it ignores the city. These are the jurisdictions with material local overlays for this kind of notice.

Seattle
Rent increases require 180 days notice, just cause is required, and relocation assistance may be owed. Tacoma, Burien, Kenmore and other cities have their own longer periods.

A Washington notice of rent increase, as generated

This is the real document, filled with sample details. Change the state and the facts above and it becomes yours.

NOTICE OF RENT INCREASE
Washington · RCW 59.18.140(3)
Notice period ends: October 24, 2026
TO
Devon A. Ruiz and Jordan Ruiz
and all others in possession of
4421 Cedar Ave, 4B
Sample City, WA, 00000

PLEASE TAKE NOTICE that effective November 1, 2026, the rent for the premises described above will increase from $1,850.00 to $1,995.00 per month, an increase of $145.00 (7.8%).

This notice is served THIRTY (30) days in advance of the effective date, as required by RCW 59.18.140(3). The notice period expires on October 24, 2026.

All other terms and conditions of the tenancy remain unchanged. Rent at the increased amount is due and payable on the first day of each month beginning with the effective date above.

This notice is given pursuant to RCW 59.18.140(3).

Marisol Vega
1180 Fulton St, Washington 00000
(555) 555-0148 · you@example.com
Landlord / Owner / Authorized Agent
Dated: September 24, 2026
PROOF OF SERVICE

I declare that on September 24, 2026, I served the foregoing notice on the tenant(s) named above by the method indicated below:

☐  Personal delivery to the tenant.
☐  Substituted service — delivered to a person of suitable age and discretion at the premises, and a copy sent by first-class mail addressed to the tenant at the premises.
☐  Posting a copy in a conspicuous place on the premises, and sending a copy by first-class mail addressed to the tenant at the premises.
☐  Service by mail.

The notice period begins the day after service and expires on October 24, 2026.

Signature of person serving notice
Date
Drafting note — read before serving

Washington requires at least 30 days written notice of a rent increase. Seattle requires 180 days, and other cities have enacted their own longer periods — check the city where the unit sits.

Generated by RentDemand · Washington · RCW 59.18.140(3) · September 24, 2026
RentDemand is not a law firm and does not provide legal advice. This document is a self-help template. Verify the current statute and any local ordinance, and consult a licensed attorney in Washington before serving.

Common questions

How long is the notice period for a notice of rent increase in Washington?
30 days, under RCW 59.18.140(3). Washington requires at least 30 days written notice of a rent increase. Seattle requires 180 days, and other cities have enacted their own longer periods — check the city where the unit sits.
Does service by mail change the Washington notice period?
Yes. In Washington a notice served by mail adds 3 days to the period, so the deadline moves back by 3 days.
Can the rental agreement change the Washington notice period?
A lease can lengthen a cure period, and where it does, the longer period controls. Enter your lease's period in the generator and the deadline is recomputed for you. A lease cannot shorten a period the statute sets.
Is this Washington notice of rent increase legally binding?
RentDemand generates a self-help document from the statute cited on its face. It is not legal advice and it is not a substitute for a lawyer in Washington, particularly if the tenancy is contested or the unit is covered by a local ordinance.

Other Washington notices

Pay Rent or QuitCure or QuitUnconditional QuitTerminate / Non-RenewalNotice of EntryDeposit Itemization

Everything for Washington →

A notice of rent increase in every other state

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Questions landlords ask at 11pm

Is this legal advice?
No. RentDemand is not a law firm and does not provide legal advice. It assembles a self-help document from the statute shown on the notice and computes your deadline. For anything contested, hire a lawyer in your state — the notice you generate here is the document you hand them.
How is this different from a free template?
A free template gives you the same paragraph in every state with blank day counts. RentDemand knows that a Florida pay-or-quit skips weekends and holidays, that Virginia gives 21 days to cure but only 5 to pay, that North Carolina terminates a month-to-month tenancy in 7 days, and that Georgia has no cure period at all. It also computes the actual date the period ends.
What if my lease sets a different period?
Change the number. The notice period field is pre-filled with the statutory default and is yours to edit — a lease can lengthen a cure period, and the longer period then controls.
Do I get a PDF?
You get a print-ready document with correct 8.5×11 pagination. Click Unlock and your browser's print dialog opens; choose Save as PDF. That gives you a cleaner file than most generators produce, because the browser does the typesetting.
What if I serve it wrong?
Service is where these notices fail. Every document includes a proof-of-service block with the recognised methods for your state, and the day-of-service exclusion is already built into the deadline. If you serve by mail, tick the box and the mailing extension is added automatically.