Washington · WA

Demand letters in Washington.

In Washington, landlords must return a deposit within 30 days, and the Small Claims Department (District Court) hears claims up to $10,000. Here's the law you need — and a generator that cites it for you.

By The Demand Letter Kit Team Sourced from official statutesUpdated June 1, 2026

Washington demand letter facts at a glance

Deposit return deadline

30 days

Small claims limit

$10,000

Filing fee

$35–$50

Written-contract SOL

6 years

Personal-injury SOL

3 years

Legal/judgment interest

12% per year, or 4 points above the 26-week Treasury rate for contracts setting no rate (post-judgment).

Security deposit demand letters in Washington

If your former landlord is holding your deposit, Washington law is on your side. A landlord must return your security deposit within 30 days, along with an itemized statement of any deductions. Bad-faith retention can expose the landlord to up to twice the deposit plus attorney’s fees and costs.

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Statutes of limitation in Washington

A demand letter doesn't pause the clock — you must file suit within these windows:

Written contracts 6 years
Oral contracts 3 years
Personal injury 3 years
Property damage 3 years

Small claims court in Washington

If your demand letter is ignored, Washington's Small Claims Department (District Court) is usually the next step. It hears claims up to $10,000, with filing fees around $35–$50. You typically don't need a lawyer, and mentioning that you're prepared to file gives your letter real weight.

Washington courts self-help

Good to know in Washington

Washington increased its deposit return deadline to 30 days (it was 21) and requires a written checklist at move-in plus an itemized statement of deductions; missing the requirements can expose the landlord to double damages plus attorney’s fees. Small claims in the District Court covers up to $10,000, and attorneys generally cannot appear without a judge’s permission. Washington’s post-judgment interest rate is a high 12% on many judgments, increasing the value of a contract claim.

Washington demand letter FAQ

How long does a landlord have to return a security deposit in Washington?
In Washington, a landlord generally must return your security deposit within 30 days. Bad-faith retention can expose the landlord to up to twice the deposit plus attorney’s fees and costs. The governing statute is Wash. Rev. Code § 59.18.280.
What is the small claims court limit in Washington?
Washington's Small Claims Department (District Court) hears claims up to $10,000, with filing fees of roughly $35–$50. Most demand-letter disputes fall within this limit, which is what makes a demand letter such effective leverage.
How long do I have to sue in Washington?
Washington's statute of limitations is 6 years for written contracts, 3 years for oral contracts, 3 years for personal injury, and 3 years for property damage. Sending a demand letter does not pause these deadlines, so don't wait too long.
Do I have to send a demand letter before filing in Washington?
Washington does not always require a demand letter before suing, but sending one is strongly recommended: many courts expect it, it can resolve the dispute without filing, and it documents that you tried to settle in good faith — which helps your case if you do end up in Small Claims Department (District Court).

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