Washington Security Deposit Law: The 30-Day Deadline, Explained

Thirty days — that’s the window Washington state gives your landlord to return your security deposit or tell you in writing exactly why they’re keeping part of it. Miss it, and the law shifts hard in the tenant’s favor.

The deadline: 30 days after you move out

Washington’s Residential Landlord-Tenant Act (RCW 59.18.280) requires landlords to return your full deposit, or a written statement itemizing any deductions along with the remaining balance, within 30 days of move-out. That statement has to be mailed or delivered to your last known address — silence past the 30 days is a violation on its own.

How much they could have taken in the first place

Washington doesn’t set a statewide cap on how much a landlord can charge as a deposit, so check your lease against local rules — several cities regulate this more tightly. Seattle, for example, caps deposits at one month’s rent for an unfurnished unit and two months for a furnished one, and requires move-in cost payment plans on top of that.

What has to be in the itemized statement

If any part of your deposit is withheld, the landlord’s written statement needs to specify the exact reasons and dollar amounts for each deduction. A landlord who withholds money without sending this statement, or who withholds in bad faith, loses the right to keep it — the burden shifts to them to prove the deduction was justified.

What happens if they miss the 30 days

Miss the deadline, and Washington law lets you sue for the deposit plus damages. If a court finds the landlord withheld the deposit in bad faith, you can recover up to twice the wrongfully withheld amount on top of getting your money back, and you generally have up to two years from move-out to bring the claim. You can also file a complaint with the Washington State Attorney General’s office.

What to do if the deadline has already passed

• Send a written demand citing RCW 59.18.280 and the date you moved out.
• Note that no itemized statement was received within 30 days, if that’s what happened — that alone can shift the burden of proof to the landlord.
• Ask for the full deposit, and mention the bad-faith damages provision if the withholding looks unjustified.
• If they still don’t respond, small claims court in Washington handles deposit disputes and doesn’t require a lawyer to file.

Not sure exactly how many days have passed, or what your landlord actually owes you? Run the numbers in our free security deposit calculator — it does the date math and flags whether your landlord has already blown the deadline.

For the step-by-step on challenging specific deductions once you do get an itemized statement, see our full deposit dispute guide. And if you’re ready to send a formal demand, our free security deposit dispute letter generator builds it for you in about two minutes.

Quick reference

• Landlord has 30 days after move-out to return the deposit or send a written itemized statement.
• No statewide cap on deposit amount, but check local ordinances — Seattle and other cities regulate this.
• Withholding without the required statement forfeits the landlord’s right to keep the money.
• Bad-faith withholding can mean up to 2x damages, with up to 2 years to file a claim.

This article is general information for renters, not legal advice. Landlord-tenant law changes, and city or county ordinances can add rules on top of state law. Confirm specifics with a local tenant rights organization or attorney before acting.