WA STATUTORY REFERENCE • RCW 59.18.280

Washington Security Deposit Return Deadline & Penalty Calculator (2026)

In Washington, landlords have 30 days (30 days after termination of the rental agreement and vacation of the premises (updated from 21 days under 2023 WA HB 1074 reforms, with mandatory invoice/receipt attachment rules)) to return your deposit or provide an itemized deduction statement.

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Calculate Your Washington Deposit Deadline & Statutory Damages

Enter your move-out / key-surrender date and deposit amount to check whether your landlord is past the Washington statutory deadline under RCW 59.18.280.

2026 STATUTE SUMMARY

Washington Security Deposit Law Quick Facts

Governing StatuteRCW 59.18.280
Return Deadline30 days (30 days after termination of the rental agreement and vacation of the premises (updated from 21 days under 2023 WA HB 1074 reforms, with mandatory invoice/receipt attachment rules))
Maximum Deposit CapNo statewide cap (Seattle caps deposit + nonrefundable fees at 1 month's rent with installment option)
Bad-Faith / Late PenaltyUp to 2.0x — Full return of deposit (no offset allowed if 30-day deadline or move-in checklist is missed) plus up to twice the amount of the deposit for intentional refusal, plus attorney's fees
Small Claims Court Limit$10,000
Interest Required?No (interest belongs to landlord unless agreed otherwise in writing, must be in WA trust account)
Walkthrough / InspectionMandatory signed move-in checklist required at start of tenancy or landlord cannot collect/retain any deposit; landlord must attach actual repair invoices/receipts

Example: On a $1,800 deposit wrongfully withheld past the 30-day deadline in Washington, statutory provisions allow claims up to $3,600 (2.0x) in Small Claims Court (limit $10,000).

INSTANT DIGITAL DOWNLOAD

Landlord Missed the Deadline or Overcharging for Normal Wear?

Get the complete Keep the Deposit Recovery System: our 48-Hour Move-Out & Dispute Handbook, 7 Fill-in-the-Blank Statutory Demand Letters (citing RCW 59.18.280), the 50-State Reference Guide, and the Excel Prorated Depreciation Audit Workbook.

  • Certified-mail demand templates for missed deadlines & itemized receipt requests
  • HUD carpet, paint & appliance useful-life prorated deduction calculator (.xlsx + PDF)
  • Room-by-room photo evidence log & small-claims preparation checklist
Download Keep the Deposit Kit — $7 Free 10-Min Room Check PDF
Keep the Deposit Recovery Handbook

How to Dispute Unfair Carpet, Paint & Cleaning Deductions in Washington

Even when a Washington landlord mails an itemized list within 30 days, they cannot charge you for normal wear and tear or bill you 100% of the replacement cost for an aged asset that has already exhausted most of its useful life.

1. Useful-Life Proration

Standard apartment carpet depreciates over 5 years (60 months). If carpet was 4 years old at move-out, the maximum recoverable value is 20% — never a full replacement bill.

2. Statutory Demand Notice

Send a written demand via Certified Mail citing RCW 59.18.280 and giving a firm 7-to-10 business day deadline before filing in Washington Small Claims Court.

3. Prorated Audit Calculator

Use our free Carpet & Paint Depreciation Calculator to calculate the exact legal deduction cap in seconds.