⚠️ Updated June 2026 — Washington State Law

Security Deposit Return Laws in Seattle, WA (2026)

Seattle landlord keeping your deposit? Washington law gives landlords 21 days to return it. Penalty: 2× deposit if late. Generate a demand letter now.

21 Days
Return Deadline
2× deposit
Penalty if Late
RCW
Governing Law

When Must a Seattle Landlord Return Your Deposit?

Under RCW § 59.18.270, landlords in Seattle must return your security deposit — along with an itemized statement of deductions — within 21 days of your tenancy ending. Missing this deadline triggers a penalty of 2× deposit.

In a competitive rental market like Seattle, landlords sometimes improperly withhold deposits to cover turnover costs. Knowing the law is your biggest advantage.

Legal vs. Illegal Deductions in Seattle

If your Seattle landlord deducts for illegal items, include the disputed amounts in your demand letter and cite RCW § 59.18.270.

Step-by-Step: Get Your Seattle Security Deposit Back

  1. Calculate the deadline — count 21 days from your official move-out date.
  2. Document everything — move-out photos, timestamped videos, move-out inspection report.
  3. Send a demand letter — cite RCW § 59.18.270, state the exact amount owed plus any penalty. Send certified mail.
  4. Give 14 days to respond — most Seattle landlords comply after receiving a legally-cited letter.
  5. File in small claims — if no response, file in Washington small claims court. Maximum limit varies by county in Seattle.

Tenant Resources in Seattle

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