When Must a Washington Landlord Return Your Security Deposit?
In Washington, the deadline is 30 days after the rental agreement terminates and you vacate (or 30 days after the landlord learns of an abandonment). The rule is RCW 59.18.280 (holding rules at RCW 59.18.270). Here is the clock, the cap, what the landlord must send you, and what happens when they miss it.
The Washington rule in one table
| Question | Washington rule |
|---|---|
| Governing statute | RCW 59.18.280 (holding rules at RCW 59.18.270) |
| Maximum deposit | No state cap for ordinary tenancies under RCW 59.18 |
| Return / itemize deadline | 30 days after the rental agreement terminates and you vacate (or 30 days after the landlord learns of an abandonment) |
| Itemized statement required? | Yes — a 'full and specific statement' of the basis for each deduction, and for damage deductions, the paperwork to back it: copies of estimates or invoices, or for the landlord's own work, the materials bill plus time spent and the hourly rate. |
| Penalty for missing the deadline | A landlord who misses the deadline is liable for the full amount of the deposit and is barred from raising any claim or defense for keeping it. |
What makes Washington different
Washington's deadline changed recently and the internet hasn't caught up: the deadline was 21 days until HB 1074 (2023) moved it to 30 days. Pages still quoting 21 days — or 14, the pre-2016 rule — are stale. One more local wrinkle: some cities (Seattle is the big one) cap combined move-in fees and deposits at one month's rent even though state law sets no general cap.
The move-out process, step by step
- Your clock starts after the rental agreement terminates and you vacate (or 30 days after the landlord learns of an abandonment). Everything in Washington is counted from that date — note it, and keep proof of when you handed back possession (photos of the empty unit, a signed move-out form, or the key-return receipt).
- Give a forwarding address in writing. Some states make this a formal trigger for the landlord's duty; everywhere, the landlord can only mail the statement and any refund to an address they have. Email counts in most leases — written and kept beats verbal and lost.
- Count the deadline: 30 days. Mark the calendar date. The landlord's obligation is to send by that date in most states — delivery or mailing by the deadline is what the statutes measure.
- Read the statement against the statute. Yes — a 'full and specific statement' of the basis for each deduction, and for damage deductions, the paperwork to back it: copies of estimates or invoices, or for the landlord's own work, the materials bill plus time spent and the hourly rate. Documentation is not required for non-damage deductions like unpaid rent.
- If the deadline passes with nothing, the penalty rules switch on. A landlord who misses the deadline is liable for the full amount of the deposit and is barred from raising any claim or defense for keeping it. If a court finds the refusal intentional, it may award up to 2× the deposit, plus court costs and reasonable attorney's fees.
If your landlord missed the deadline
File in the district or superior court of the county where the property is; the statement can be delivered personally or by first-class mail to your last known address, so keep that address current with the landlord.
Before you file anything, run your dates through the Security Deposit Deadline Calculator — enter your state and move-out date and it returns the exact calendar deadline and the penalty rule that applies. Then compare your state with the other seven in the Security Deposit Return Deadlines by State directory.
Renting in a different state next? The rules change completely at the border: see Texas and Florida for the two most different systems in this set, or your own state's page from the directory.
If the deadline has passed, send a written demand first, then file in small claims if it fails: How to Write a Security Deposit Demand Letter and How to File a Small Claims Case for a Withheld Deposit in Washington.
Source
Every deadline, cap, and penalty on this page comes from the statute itself: Washington Legislature — RCW 59.18.280. Facts verified 2026-10-23.
This page explains how the process works and what the official rules say. It is general information, not legal advice — for a dispute about your specific situation, talk to a lawyer or your state labor or consumer agency.
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