Washington Security Deposit Return Deadline & Penalty Calculator
Thursday, November 12, 2026
Computed as 30 calendar days under RCW 59.18.260 – 59.18.280.
Washington Small Claims Court cap: $10,000 — eligible for Small Claims Court filing.
Washington Security Deposit Rules at a Glance (RCW 59.18.260 – 59.18.280)
30 calendar days after the termination of the rental agreement and vacation of the premises under RCW 59.18.280. The landlord must give a full and specific statement of the basis for retaining any of the deposit together with any refund due, delivered personally or mailed to the tenant's last known address.
| Deadline (No Deductions) | 30 calendar days |
|---|---|
| Deadline (With Itemized Deductions) | 30 calendar days |
| Maximum Deposit Cap | No statewide statutory cap in Washington State; however, Seattle municipal code limits all security deposits and move-in fees combined to a maximum of 1 month's rent (with installment payment options). |
| Bad-Faith / Late Penalty | Under RCW 59.18.280(2), if the landlord fails to give the statement and documentation and refund within 30 days, they forfeit all rights to withhold any portion of the deposit. In any court action, the court may in its discretion award up to two times (2x) the amount of the deposit if the refusal was intentional, plus reasonable attorney's fees. |
| Deposit Interest Rule | Security deposit funds must be held in a trust account in a financial institution in Washington State under RCW 59.18.270; the lease must state who is entitled to any interest earned (typically kept by landlord unless agreed otherwise). |
| Small Claims Court Limit | $10,000 |
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Key Washington Statutory Nuances & Documentation Rules
- Written Move-In Checklist Mandatory (RCW 59.18.260): No deposit may be collected or retained unless a signed written condition checklist was provided at move-in. Failure to provide this checklist bars the landlord from making any deductions.
- Extension from 21 to 30 Days (Recent Law): Washington amended RCW 59.18.280 to expand the return deadline from 21 calendar days to 30 calendar days.
- Substantiation Documentation Required: Under RCW 59.18.280(1)(a), the landlord must provide copies of repair invoices, receipts, or estimates to substantiate every dollar retained.
- Wear and Tear Specifically Protected: Normal wear and tear resulting from ordinary use of the premises cannot be deducted regardless of lease language to the contrary.
Seattle Rental Move-Out with Late Accounting
A tenant vacates a Seattle apartment on July 31, 2026. Under RCW 59.18.280, the 30-calendar-day deadline expires on August 30, 2026 (rolling to Monday, August 31, 2026). If the landlord withholds $1,100 without delivering an itemized accounting and repair receipts by August 31, the landlord forfeits all rights to keep any part of the deposit. In Washington Small Claims Court (District Court limit $10,000), if the court finds the refusal was intentional, the judge may award up to double the total deposit ($4,800) plus reasonable attorney's fees.
Washington Security Deposit Return FAQs
How many days does a landlord in Washington have to return a security deposit?
Under RCW 59.18.280, the landlord must provide a full and specific statement detailing the deductions and return any remaining deposit within 30 calendar days after the rental agreement terminates and the tenant vacates.
Can a Washington landlord deduct damages if there was no move-in checklist?
No. Under RCW 59.18.260, a landlord cannot collect or retain any security deposit without a written checklist describing the condition and cleanliness of the unit signed by both parties at the start of tenancy. Without this checklist, the landlord must refund the entire deposit.
What happens if a Washington landlord fails to provide the 30-day statement?
Under RCW 59.18.280(2), failing to deliver the required statement and documentation within 30 days forfeits the landlord's right to retain any portion of the deposit, and the court may award up to twice the amount of the deposit if the refusal was intentional.
Are there special security deposit limits in Seattle?
Yes. Under Seattle Municipal Code (SMC 7.24.030), the total amount of security deposits and nonrefundable move-in fees combined cannot exceed one month's rent, and tenants have the right to pay these fees in six consecutive monthly installments on leases of 6+ months.