Skip to content

The maximum annual rent increase percentage is calculated using the June 12-month percent change in the Consumer Price Index for all urban consumers, all items, for the Seattle area as published by the United States Bureau of Labor Statistics, which is expected to be released in mid-July.

Landlords issuing rent increase notices on or after June 1, 2026, should use caution, as any increase above 7% may exceed the maximum annual cap once the June CPI is published.

Under RCW 59.18.700, the maximum allowable increase is 7% plus the June CPI, or 10%, whichever is less. Once the June CPI is released, landlords will know the maximum rent increase that may take effect during January–December 2027.

RCW 59.18.700 specifies that a landlord may not increase the rent for any type of tenancy during the first 12 months after the tenancy begins. After the first 12 months, a landlord may increase the rent during any 12-month period of the tenancy up to 7% plus the Consumer Price Index, or 10 percent, whichever is less. Certain properties and situations are exempted, as defined in RCW 59.18.710.

Scroll To Top