Published · On Commerce's page as of Oct 17, 2026

Washington's statewide rent cap for 2027: 10%

The Department of Commerce lists 10% as the maximum annual increase for January 1 – December 31, 2027 under RCW 59.18.700 (7% plus CPI, or 10%, whichever is less). Landlords must give at least 90 days' written notice.

From the official source

1. Washington State Department of CommerceHB 1217 Landlord Resource Center ↗

   “between 1/1/2027 and 12/31/2027 is 10%.”

   Checked against our saved copy of the page

Also on the official pages

• “up to 7% plus the Consumer Price Index, or 10 percent, whichever is less”

• “a landlord shall provide a minimum of 90 days' prior written notice of an increase in the amount of rent”

Current caps

• Washington (statewide, 2025 law): current cap 9.683% · calculator

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