Washington security deposit law

Plain-English summary, citations, and what to do if your landlord violates it. Last updated 2026-04-26.

Deposit capNo statutory cap (some cities have local caps).
Return deadline30 days from move-out
Itemization requiredYES — Full statement specifying the basis for retaining any portion + remaining deposit within 30 days.
Wear-and-tear excludedYES
Double damages availableYES
StatuteRCW 59.18.280
Small claims cap$10,000
NotesMove-in checklist signed by both parties is REQUIRED for landlord to make any deductions.

If the landlord violated the law

If your landlord didn't return your deposit within 30 days or didn't itemize deductions, you can demand the deposit back — and in Washington, recover up to 2× the deposit in damages.

The exact rule: Failure to comply: tenant entitled to recover the deposit + costs of suit + attorney fees + up to 2× the deposit if the court finds intentional non-compliance.

A free letter generator for Washington is on the roadmap. See the NY generator for the format — the legal logic adapts to Washington per the statute below.

What to do step by step

  1. Send a written demand letter, certified mail with return receipt, to the landlord's address on file. State the deposit amount, the move-out date, the days elapsed, and the statute (RCW 59.18.280).
  2. Wait 14-30 days for compliance.
  3. If still no return: file in your local small claims court (cap in Washington: $10,000). Filing fees are typically $20-$60.
  4. Bring: the lease, deposit-paid proof, photos taken at move-out, any communication with the landlord, and a copy of your demand letter (with the certified-mail receipt).

Common landlord excuses (and why they don't hold)

Why this page exists

Most landlord-tenant info pages are written by law firms hoping to upsell representation. This isn't that. It's a public-interest summary based on the actual statute, free to use, no signup. If you find an error, open an issue on GitHub.