Is there a rent cap in Washington?
Yes. RCW 59.18.700 series (HB 1217, 2024), sunset 2040-07-01 caps annual rent increases at the lower of 7% plus local CPI (3% default in our calculator) or 10% flat. Exemptions include Buildings with certificate of occupancy issued within the last 12 years (rolling exemption). Local rent-stabilized cities may have stricter caps that override the state rule.
Source: RCW 59.18.140 (90-day advance notice for any rent increase, HB 1217)
This is an informational answer based on RCW 59.18.140 (90-day advance notice for any rent increase, HB 1217) as of early 2026. It is not legal advice. Housing law changes year to year and local ordinances (especially in rent-controlled or rent-stabilized cities) can override or add to state law. For contested cases, consult a Washington-licensed attorney.