Can a Washington landlord keep the deposit for unpaid rent only?
Yes, the security deposit can be applied to unpaid rent at end of tenancy in Washington. The landlord must still send the itemized statement under RCW 59.18.280 within 30 days, listing the unpaid rent amount and the months it covers. If the deposit fully covers the unpaid rent, the landlord retains the deposit and the tenant owes nothing further. If the deposit is less than the unpaid rent, the landlord can keep the entire deposit and pursue the balance through small-claims court. If the deposit exceeds the unpaid rent, the landlord must return the difference to the tenant. Up to 2x the wrongfully withheld amount plus attorney fees under RCW 59.18.280(2).
Source: RCW 59.18.280
This is an informational answer based on RCW 59.18.280 as of early 2026. It is not legal advice. Housing law changes year to year and local ordinances (especially in rent-controlled or rent-stabilized cities) can override or add to state law. For contested cases, consult a Washington-licensed attorney.