Washington· Answer
Is a Washington landlord required to justify a rent increase?
Short answer
Within the cap, Washington does not require justification: any increase up to 10% (or the lower of 7% plus CPI) is permitted with the proper notice. Above the cap, the increase is void unless the unit is exempt. Local rent-control ordinances may impose pass-through or hardship justification.
Source: RCW 59.18.140 (90-day advance notice for any rent increase, HB 1217)
Honest limits
This is an informational answer based on RCW 59.18.140 (90-day advance notice for any rent increase, HB 1217) 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.
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