Notice before a rent increase
Landlords may not raise rent in the first year of a tenancy and afterward must give at least 90 days' written notice, no more than once in any 12-month period (ORS 90.323(1)–(3)).
No increase in the first year of tenancy; after that, at least 90 days' written notice stating the increase, new rent and effective date, at most once per 12 months. Week-to-week tenancies: 7 days' notice.
ORS 90.323(1)–(3) · checked October 26, 2026
Notice to end a month-to-month tenancy
A landlord may end a month-to-month tenancy without cause on 30 days' written notice only in the first year of occupancy; after that, only for tenant cause or a qualifying landlord reason with 90 days' notice and (for landlords with 5+ units) one month's rent, while tenants may always give 30 days' notice (ORS 90.427(3), (5)–(6)).
Landlord 30-day no-cause notice only during the first year of occupancy. After the first year: only for tenant cause, or 90 days' notice for a qualifying landlord reason (demolition/conversion, major repairs, landlord or immediate-family occupancy, sale to a buyer who will live there) stating the reason and paying one month's rent (payment not required if landlord owns 4 or fewer units); 60 days with an extra month's rent for a qualifying sale. Owner-occupied 2-unit property: 60-day no-cause after year one, or 30 days for an accepted sale to a buyer who will occupy (90.427(8)(a)). Week-to-week: 10 days.
ORS 90.427(3)–(8) · checked October 26, 2026
Change coming (ORS 90.324 annual calculation (OEA, published Sept. 2026), effective January 1, 2027): Maximum allowable rent increase for calendar 2027 is 10% (the 10% ceiling applies). Source
With 90 days' notice delivered on November 1, 2026, the earliest effective date the form accepts is January 30, 2027, and the example moves it to the first day of a month on or after that date. Oregon's rule above sets different terms in some situations, so set the form's notice period to the one that fits your tenancy.
City and county rules can be stricter than state law, and your lease can require more than the statute does. Use whichever rule gives the tenant more time or protection.