Washington landlord guide
Deposit limits, entry notice, termination notice and rent increase rules for Washington, with the sources they come from.
Washington landlord-tenant rules at a glance
- Security deposit limit
- No statutory limit
- Deposit return / claim rule
- 30 days
- Deposit interest
- Not required
- Notice before entry
- 2 days' written notice; 1 day to show the unit to buyers or renters
- Ending a month-to-month
- Landlord needs just cause (RCW 59.18.650); tenant gives 20 days
- Notice before a rent increase
- 90 days' written notice (30 days if rent is income-based)
- Late fees
- No late fee if rent is paid within 5 days of due date; no state cap
- Rent control
- Statewide cap: lesser of 7% + CPI or 10%; 9.683% for 2026
General information from the Residential Landlord-Tenant Act (RCW ch. 59.18), last reviewed 2026-08-21. Not legal advice; municipal bylaws can add requirements.
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