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Washington rules for deposits, notice, and late fees

Deposit, notice, and late-fee figures cited to the state statute.

RuleRule text
Deposit return deadlineWithin 30 days after termination of the rental agreement and vacation of the premises, or within 30 days after the landlord learns of abandonment as RCW 59.18.310 defines it, the landlord shall give a full and specific statement of the basis for retaining any of the deposit, together with payment of any refund due. Wash. Rev. Code § 59.18.280. As of 2026-10-09.
Notice for a rent increaseExcept as subsections (3)(b) and (3)(c) provide, a landlord shall give at least 90 days' prior written notice of an increase in the amount of rent, and the increase may not become effective before the rental agreement term is completed. Wash. Rev. Code § 59.18.140. As of 2026-10-09.
Notice to end a tenancyA month-to-month tenancy, or a tenancy for the period on which rent is payable, ends by written notice of 20 days or more, preceding the end of the month or period, given by the tenant to the landlord. Wash. Rev. Code § 59.18.200(1)(a). As of 2026-10-09.
Notice before entryExcept in an emergency or if it is impracticable to do so, the landlord shall give the tenant at least two days' written notice of the intent to enter and shall enter only at reasonable times. The notice must state the exact time and date or dates of entry, or a period of time during that date or dates. Wash. Rev. Code § 59.18.150(6). As of 2026-10-09.
Late feeThe landlord may not charge a late fee for rent paid within five days after its due date. If rent is more than five days past due, the landlord may charge late fees from the first day after the due date until the rent is paid. Wash. Rev. Code § 59.18.170. As of 2026-10-09.
Eviction noticeA landlord may not evict a tenant, refuse to continue a tenancy, or end a periodic tenancy except for the causes enumerated in RCW 59.18.650 and as that subsection otherwise provides. This text is the version effective until January 1, 2028. Wash. Rev. Code § 59.18.650. As of 2026-10-09.
Full statute text

Within 30 days after termination of the rental agreement and vacation of the premises, or within 30 days after the landlord learns of abandonment as RCW 59.18.310 defines it, the landlord shall give a full and specific statement of the basis for retaining any of the deposit, together with payment of any refund due.

The landlord may not charge a late fee for rent paid within five days after its due date. If rent is more than five days past due, the landlord may charge late fees from the first day after the due date until the rent is paid.

A landlord may not evict a tenant, refuse to continue a tenancy, or end a periodic tenancy except for the causes enumerated in RCW 59.18.650 and as that subsection otherwise provides. This text is the version effective until January 1, 2028.

Figures are from Washington statutes, retrieved 2026-10-09. Primary sources: https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.280, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.200, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.150, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.650, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.140, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.170.

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Questions

How soon must a landlord return a security deposit in Washington?

Within 30 days after termination of the rental agreement and vacation of the premises, or within 30 days after the landlord learns of abandonment as RCW 59.18.310 defines it, the landlord shall give a full and specific statement of the basis for retaining any of the deposit, together with payment of any refund due. Source: Wash. Rev. Code § 59.18.280, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.280, as of 2026-10-09.

How much notice does a rent increase require in Washington?

Except as subsections (3)(b) and (3)(c) provide, a landlord shall give at least 90 days' prior written notice of an increase in the amount of rent, and the increase may not become effective before the rental agreement term is completed. Source: Wash. Rev. Code § 59.18.140, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.140, as of 2026-10-09.

How much notice ends a tenancy in Washington?

A month-to-month tenancy, or a tenancy for the period on which rent is payable, ends by written notice of 20 days or more, preceding the end of the month or period, given by the tenant to the landlord. Source: Wash. Rev. Code § 59.18.200(1)(a), https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.200, as of 2026-10-09.

How much notice must a landlord give before entering in Washington?

Except in an emergency or if it is impracticable to do so, the landlord shall give the tenant at least two days' written notice of the intent to enter and shall enter only at reasonable times. The notice must state the exact time and date or dates of entry, or a period of time during that date or dates. Source: Wash. Rev. Code § 59.18.150(6), https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.150, as of 2026-10-09.

What late fee does Washington allow?

The landlord may not charge a late fee for rent paid within five days after its due date. If rent is more than five days past due, the landlord may charge late fees from the first day after the due date until the rent is paid. Source: Wash. Rev. Code § 59.18.170, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.170, as of 2026-10-09.

What eviction notice does Washington require?

A landlord may not evict a tenant, refuse to continue a tenancy, or end a periodic tenancy except for the causes enumerated in RCW 59.18.650 and as that subsection otherwise provides. This text is the version effective until January 1, 2028. Source: Wash. Rev. Code § 59.18.650, https://app.leg.wa.gov/RCW/default.aspx?cite=59.18.650, as of 2026-10-09.

Estimates for planning; not tax/legal advice.