Washington security deposit law
What should I do if my landlord won't return my deposit in Washington?
The short answer
Build the paper trail: confirm your forwarding address in writing, then send a demand letter by certified mail citing RCW § 59.18.280 and the 21 days deadline. A statute-cited demand is the step that moves most cases, and it sets up Small Claims Court if needed.
When a Washington landlord goes quiet on your deposit, escalate in writing, in this order.
First, remove their easiest excuse: send your forwarding address in writing (text or email counts, but letter is better) and keep proof. Second, send a formal demand letter by certified mail. Cite RCW § 59.18.280, state the 21 days deadline and the date it passed, itemize what you are owed, and give a firm response date, typically 10 to 14 days. Certified mail matters: it creates dated proof the landlord received your demand, which is exactly what a judge asks about first.
Third, know the leverage behind the letter: Washington law allows up to 2x the deposit for wrongful withholding where bad faith is shown, which is why a landlord's lawyer will usually advise settling a clear case.
If the letter is ignored, Small Claims Court handles deposit disputes up to $10,000, no attorney required, and your certified-mail demand becomes your first exhibit. Most tenants never need the courtroom: the letter, done properly, is where the money moves.
The Washington rules at a glance. Governing statute: RCW § 59.18.280. Return deadline: 21 days. Statutory damages: up to 2x the deposit for wrongful withholding. Attorney's fees: recoverable in qualifying cases. Court for disputes: Small Claims Court, claims up to $10,000.
Looking for the rules beyond this state? My landlord didn't return my security deposit. What do I do?
See what your landlord owes you under Washington law.
Answer a few questions about your situation and get a Washington-specific demand letter that applies these rules to your case, ready in about ten minutes.