GiveProperNotice

2026 Washington Rent Cap Calculator

Washington law caps how much you can raise rent in a 12-month period. Enter your current rent and planned effective date to see the cap that applies and the maximum legal new rent.

$

Defaults to 6 months out.

Enter a current rent and effective date to see the applicable cap.

Want this calculated automatically for every unit, every year, with reminders?

That's GiveProperNotice — the full deadline calendar, checklist, and reminder emails for $10/mo.