How much notice is required for a rent increase in Seattle?

Washington requires at least 60 days written notice before raising rent.

Seattle, WashingtonLast reviewed April 2026

Rent increase rules in Seattle

Seattle is covered by Washington HB 1217 (7% + CPI, max 10%). Seattle additionally requires 180 days notice for rent increases — the longest in the country — and Economic Displacement Relocation Assistance for increases over 10%.

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I use a Section 8 / Housing Choice VoucherHCV tenants follow different rules — increases require PHA approval and rent-reasonableness review.

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Free legal help in Washington

Walk through three quick steps to find the right tenant-rights program for your situation.

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When you call, ask about: a tenant intake appointment

Say: "I'm a tenant and need help understanding my rights and options."

Bring: your lease, recent rent receipts, and any letters or notices from your landlord.

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State listings sourced from the federal Legal Services Corporation (LSC) grantee directory. Educational information, not legal advice or endorsement.

State rules that apply in Seattle

HB 1217 (2025) caps annual residential rent increases at 7% + CPI, with a 10% maximum. 60-day written notice required statewide. Manufactured-home pads have a separate, lower cap. Required notice: 60 days.

Local resource

Seattle Rental Housing Resources (opens in new tab)

State source

RCW §59.18 (HB 1217) (opens in new tab)

Educational information, not legal advice. Consult a local attorney or tenant-rights organization for your specific situation.