✓ Law Verified June 2026
This guide explains washington security deposit law in plain English — how much your landlord can charge, when they must return it, what they can and cannot deduct, and what to do if they do not give it back. All figures are from Washington law, verified as of June 2026.
In This Washington Guide:
Washington Security Deposit Rules at a Glance
| Maximum deposit | No state maximum. Washington does not cap the security deposit amount a landlord can charge. However, some cities impose local limits (for example, Seattle caps the deposit at one month’s rent for unfurnished units and two months’ rent for furnished units). Check your local city or county ordinances for any additional restrictions. |
| Return deadline | 30 |
| Itemized deductions required | YES. Under RCW 59.18.280, the landlord must provide a full and specific written statement of the basis for retaining any portion of the deposit within 30 days after the tenant vacates. The landlord must also include copies of estimates received or invoices paid to reasonably substantiate any damage charges. |
| Interest on deposit required | NO. Washington state law does not require landlords to pay interest on security deposits. Under RCW 59.18.270, the landlord is entitled to keep any interest earned on the trust account unless the lease agreement states otherwise. Note: Seattle has a local ordinance requiring landlords to pay interest on deposits held over one year. |
| Penalty for late/bad-faith return | If the landlord fails to provide the required itemized statement, documentation, and refund within 30 days, the landlord is liable to the tenant for the full amount of the deposit. The court may also award up to two times the amount of the deposit if the landlord intentionally refused to return the deposit or provide the required statement, unless the landlord shows circumstances beyond their control prevented timely compliance. The prevailing party in a court action may also recover court costs and reasonable attorney fees under RCW 59.18.280. |
Move-in/move-out walkthrough: YES — move-in checklist is required; move-out walkthrough is strongly recommended but not mandated by statute. Under RCW 59.18.260, a landlord may not collect a security deposit unless they provide the tenant with a detailed written checklist describing the condition and cleanliness of the premises at the start of the tenancy. Both the landlord and tenant should sign the checklist.
If the landlord collects a deposit without providing this checklist, the landlord is liable to the tenant for the full deposit amount, plus court costs and reasonable attorney fees. There is no statutory requirement for a formal move-out inspection, but tenants are strongly encouraged to do a walkthrough with the landlord and document the unit’s condition at move-out.
Separate deposit account: YES. Under RCW 59.18.270, all security deposit money must be promptly deposited in a trust account at a financial institution or with a licensed escrow agent located in Washington state. The landlord must provide the tenant with a written receipt for the deposit and disclose the name and address of the financial institution where the deposit is held.
What Your Landlord Can and Cannot Deduct in Washington
Unpaid rent; damage beyond wear resulting from ordinary use of the premises; cleaning costs only if the tenant left the unit less clean than at move-in and the condition goes beyond ordinary use; and other costs specifically authorized in the written rental agreement.
The landlord may not deduct for carpet cleaning unless the carpet condition goes beyond wear resulting from ordinary use. All deductions must be supported by estimates or paid invoices.
Normal wear and tear vs damage: Washington uses the term “wear resulting from ordinary use of the premises,” defined under RCW 59.18.030 as deterioration that results from the intended use of a dwelling unit, including breakage or malfunction due to age or deteriorated condition. It does not include deterioration resulting from negligence, carelessness, accident, or abuse by the tenant, household members, or guests.
Examples of ordinary wear include minor scuffs, small nail holes, and gradual fading of paint or carpet. A landlord may not withhold any deposit on account of wear resulting from ordinary use.
How to Get Your Deposit Back in Washington
Step 1: Send a written demand letter to the landlord citing RCW 59.18.280, listing each disputed deduction, the amount you believe is owed, and a reasonable deadline (typically 14 days) for a response. Step 2: If the landlord does not respond or refuses to refund, you may file a claim in Small Claims Court (up to 10000 for individuals).
Step 3: In court, you may be able to recover up to two times the deposit amount if the landlord intentionally withheld funds, plus court costs and reasonable attorney fees.
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You can also file a complaint with the Washington State Attorney General’s Consumer Protection Division. The Tenants Union of Washington State (tenantsunion.org) offers free resources and guidance on the dispute process.
Other Washington deposit rules: Installment payments: For leases of three months or longer, tenants may elect to pay security deposits, nonrefundable fees, and last month’s rent in three consecutive equal monthly installments; for shorter leases, two installments. The landlord may not charge fees or interest for choosing installments (RCW 59.18.610).
Nonrefundable fees: Any fee labeled nonrefundable must be explicitly designated as such in a written rental agreement; if not, it must be treated as a refundable deposit under the same return and itemization rules (RCW 59.18.285).
Written lease requirement: A landlord may not collect any deposit unless the rental agreement is in writing and specifies the terms under which the deposit may be retained (RCW 59.18.260). Deposit alternative: Landlords may offer tenants the option of paying a periodic fee instead of a traditional security deposit, but must disclose certain terms in writing.
Local rules: Some Washington cities (such as Seattle, Tacoma, and others) have additional protections including deposit caps, interest requirements, and extended installment payment plans — always check your local ordinances.
Your landlord’s insurance won’t cover your stuff
Renters insurance protects your belongings for a few dollars a month.
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Official Washington Sources & Resources
- Washington Attorney General: https://www.atg.wa.gov/deposits-and-fees
- Washington Security Deposit Statute: https://app.leg.wa.gov/rcw/default.aspx?cite=59.18.280
- U.S. Department of Housing and Urban Development: hud.gov
- Cornell Legal Information Institute: law.cornell.edu/wex
Understanding Washington Security Deposit Law
Your Washington security deposit is your money until the landlord proves a lawful deduction. Washington security deposit law sets clear limits on how much can be charged, what can be deducted, and when the balance must be returned. If your landlord misses the Washington security deposit return deadline or takes deductions that are not allowed, you may be entitled to penalties.
Document the condition of your unit at move-in and move-out — photos are the best protection for your Washington security deposit.
This Washington security deposit guide was last verified against official sources in June 2026. Laws change — verify with your state or a local legal-aid office.
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Disclaimer: This guide is informational only and is not legal advice. Landlord-tenant laws change and vary by city and county within a state. Verify current rules with your state, your local court, or a free legal-aid office before acting. If you are facing eviction, contact a local tenant attorney or legal-aid organization right away.