Washington enacted a sweeping new rent control law, Engrossed House Bill 1217 (EHB 1217), which took effect immediately on May 7, 2025. The law changes how and when landlords can increase rent, imposes new notice requirements, and creates enforcement mechanisms with penalties for noncompliance. If you own or manage rental housing in Washington, it’s important to understand these changes and adjust your practices now.
Rent Increase Limits
Under EHB 1217, codified at RCW 59.18.700-730, landlords are prohibited from raising rent during the first 12 months of a tenancy. After that, annual rent increases are capped at the lower of (1) 7% plus inflation [1], or (2) 10%. The state Department of Commerce will publish the maximum allowable increase each year. Some properties are exempt from these limits, including newly constructed properties (12 years or less from the date of first occupancy), properties owned by public housing authorities, and small owner-occupied properties. However, landlords must provide documentation to claim an exemption.
Notice Requirements
Landlords must now give at least 90 days’ written notice before a rent increase, using a standardized state-issued form. The notice must clearly state the percentage increase and total new rent amount, and if an exemption is claimed, landlords must include supporting facts or documents. Importantly, local city rules may impose even stricter requirements. For example, Seattle still requires 180 days’ notice. Landlords must always comply with the law more protective of tenants’ rights.
Enforcement & Penalties
EHB 1217 carries risks for landlords who fail to comply. Tenants can challenge unlawful increases, terminate their lease with short notice, or sue for damages. The Washington Attorney General can also enforce the law, with penalties up to $7,500 per violation, plus repayment of excess rent, attorney’s fees, and potential class-action exposure. Accurate notices, timely service, and clear documentation are critical to avoid liability.
EHB 1217 represents a major shift in Washington’s rental housing laws. Landlords should immediately review their rent increase procedures, ensure notices comply with both state and local rules, and keep thorough records to protect against disputes.
For more information or questions, please contact any of the landlord-tenant attorneys at Montgomery Purdue, including Jake Pendergast.
[1] Consumer Price Index is defined as the June 12-month percent change in the consumer price index for all consumers in the Seattle area as published by the US Bureau of Labor Statistics.