The law in plain English
Return deadline
Under Wash. Rev. Code Sections 59.18.260 to 59.18.285; 59.18.610; 59.18.670, the deposit response usually has to be sent within 30 days of the move-out timeline described by the state rule.
Required notice
Washington generally requires the refund or an itemized deduction statement with supporting receipts within 30 days.
This dispute type
In Washington, renters usually challenge deposit deductions for scuffs, faded paint, flattened carpet, and similar aging because those issues look more like ordinary use than repairable damage. The statute still controls when the refund had to be sent and how deductions had to be explained.
Penalty leverage
If the withholding was wrongful or in bad faith, the exposure allowed under the statute is: Up to 2x the deposit, plus court costs and reasonable attorney's fees