General information only, not legal advice. Laws change. Verify requirements with a licensed attorney or the statute before acting. Last reviewed: June 2026.
Security Deposit · WA
Washington security deposit law
Key rules for landlords and tenants in Washington, cited to RCW § 59.18.280.
At a glance
- Max deposit
- No statutory limit
- Return deadline
- 30 days after move-out
- Interest required
- No
- Statute
- RCW § 59.18.280
- Last reviewed
- June 2026
Frequently asked questions
What is the maximum security deposit in Washington?
No statutory limit. (RCW § 59.18.280, last reviewed June 2026.)
How long does a landlord have to return a security deposit in Washington?
30 days after move-out. The landlord must provide an itemized statement of any deductions. Failure to return on time may entitle the tenant to penalties under RCW § 59.18.280.
Is interest required on security deposits in Washington?
No. Washington does not require landlords to pay interest on security deposits under state law.
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