Washington Landlord-Tenant Laws
Washington Security deposits
Washington sets no statewide cap on residential security deposit amounts, but it heavily regulates everything else: a deposit may be collected only under a written rental agreement with a signed move-in condition checklist, must sit in a Washington trust or escrow account disclosed to the tenant by written receipt, and must be returned within 30 days of move-out with a full and specific statement backed by copies of estimates or invoices for every damage charge.
Washington Rent increase notice
Washington became the third statewide rent-stabilization state in May 2025: rent cannot be raised at all during the first 12 months of a tenancy, and after that annual increases for non-exempt units are capped at 7% plus CPI or 10%, whichever is less — 9.683% for 2026 and 10% for 2027, as published each year by the Department of Commerce (for 2027, inflation pushed the 7%-plus-CPI figure above 10%, so the flat 10% ceiling applies).
Washington Late fees
Washington sets no statewide dollar or percentage cap on residential late fees, but a landlord may not charge any late fee when rent is paid within five days of the due date — a statutory grace period under RCW 59.18.170(2).
Washington Entry notice
Washington requires at least two days' written notice before a landlord enters an occupied rental for inspections, repairs, or services — dropped to one day's written notice when the entry is to show the unit to a prospective tenant or buyer — and entry must occur at reasonable times.
Washington Fair Market Rents (FY 2026) — HUD's benchmark rents for every Washington metro area and county.
How this record was verified: Direct read of statute text on the official Washington Legislature site (app.leg.wa.gov): RCW 59.18.280 (full text, current through the 2023 c 331 amendments), RCW 59.18.610 and 59.18.253 (full text); RCW 59.18.170 and RCW 59.18.150 full texts read 2026-07-09 (upgrading them from the 2026-07-08 multi-source corroboration). HB 1217 (2025) rent stabilization provisions (RCW 59.18.700-.730, amended 59.18.140) verified against the Washington Attorney General's official landlord-tenant page and Know Your Responsibilities flyer and the Department of Commerce's official HB 1217 Landlord Resource Center (which publishes the annual cap; re-read raw in the browser pane 2026-07-16 — 9.683% for calendar 2026, and the 2027 figure is now published: 10%, because 7% + June 2026 Seattle CPI = 11.53% exceeds the 10% statutory ceiling, so the ceiling controls). RCW 59.18.260, .270, and .285 confirmed across the official AG page, Seattle SDCI, and consistent legal-aid sources. IMPORTANT verification note: committee-stage bill reports of HB 1217 describe a one-month residential deposit cap and a 1.5% late-fee cap that are NOT in the enacted law for standard residential tenancies — those limits apply to manufactured/mobile-home tenancies (ch. 59.20 RCW) per the AG's post-enactment flyer; current legal-aid guidance confirms no statewide residential deposit or late-fee amount cap.