The rule
- Notice, month-to-month
- 90 days
- Statewide rent control
- Yes
- Notice
- 90 days’ written notice in the state form (30 days for income-based subsidized tenancies); no increase during the first 12 months of a tenancy.
- Rent control
- 2025 HB 1217 caps increases at 7% + CPI or 10%, whichever is lower, per 12 months (9.683% for 2026; 10% for 2027), through July 1, 2040. Exempt: units with a first certificate of occupancy 12 or fewer years old, certain nonprofit, public, and tax-credit housing, and some owner-occupied rentals.
Law: RCW 59.18.140, 59.18.700, 59.18.710, 59.18.720
Last reviewed September 30, 2026
Not legal advice. Statutes change; check the linked section.