Oregon Rent Increase Calculator 2025 Statewide Cap

Oregon was the first state in the country to put a statewide ceiling on rent increases, and that ceiling still governs nearly every tenancy in the state. Under ORS § 90.323, enacted by SB 608 in 2019, a landlord may raise rent on an existing tenant no more than once in any 12-month period, and the increase cannot exceed West-region CPI plus 7%, capped at 10%. For 2025, the September 2023–September 2024 West Urban CPI-U figure published by the Oregon DOJ is 3.5%, so the formula resolves to 10.5% but is held down by the hard 10% maximum.

That means the practical bottom line for most Oregon renters and owners this year is the same number regardless of where you live: no more than 10%. There are no separate city ordinances stacking on top, Oregon's rule is uniform statewide. The two situations where the cap does not apply are newer construction (units first occupied within the last 15 years) and certain regulated affordable housing. Use the calculator above to apply the cap to your current rent, then read on for exactly what ORS § 90.323 covers, how the annual number is fixed, and which units fall outside it.

What ORS § 90.323 actually caps

ORS § 90.323 limits how much a landlord can raise the rent during an ongoing tenancy. It does two things at once. First, it bars more than one rent increase in any rolling 12-month period. Second, it caps the size of that single increase at West-region CPI + 7%, never above 10%.

The cap is a maximum, not a target. A landlord can raise rent by less, or not at all, and there is no requirement to justify a smaller increase. What a landlord cannot do is exceed the annual ceiling or impose a second hike within the same 12 months. The limit follows the unit, not the lease type, month-to-month and fixed-term tenancies are both covered once the tenant has lived there long enough for the protection to attach.

How the 2025 number is set

The percentage is not chosen by a city council or set by negotiation. It is a formula written into the statute: the West Urban CPI-U measured September to September, plus 7 percentage points, with a hard ceiling of 10%. For the current cycle the published CPI input is 3.5% (the September 2023–September 2024 West Urban CPI-U figure released by BLS and republished by the Oregon DOJ).

Adding 7% to that 3.5% would produce 10.5%, but because SB 608 wrote in an absolute 10% cap, the effective maximum is 10%. The Oregon Department of Justice publishes the maximum allowable percentage each year so landlords and tenants are working from the same authoritative number rather than estimating CPI themselves.

Which units are exempt

Two categories of housing fall outside the ORS § 90.323 cap:

• New construction: dwelling units first occupied within the last 15 years are exempt. This is a rolling window, a building that ages past 15 years from first occupancy loses the exemption and becomes subject to the cap.
• Subsidized affordable housing where the rent is already held to a lower ceiling by a regulatory agreement or public program.

If your building is older than 15 years and is not income-restricted affordable housing, the 10% cap almost certainly applies to your unit. The 15-year clock runs from when the unit was first occupied, not from when you moved in or when the building changed owners.

Notice and the no-cause limits

SB 608 paired the rent cap with just-cause eviction protections under ORS § 90.427. After the first year of a tenancy, a landlord generally cannot end the tenancy without a qualifying cause, which closes a common workaround, terminating a tenant to reset rent at market on a new lease.

Because the rent cap and the eviction rules are linked, an Oregon landlord cannot lawfully sidestep the 10% ceiling by pushing out a tenant who declines an over-cap increase. The statewide average rent of roughly $1,268 gives a sense of the dollars at stake, but the calculator above applies the cap precisely to your own starting rent.

Key Rules Summary

Units Exempt from the Cap

Even where a cap applies, the following unit types are typically not covered:

• Dwelling units first occupied within the last 15 years (rolling exemption)
• Subsidized affordable housing units with a lower rent ceiling

If your unit is exempt, the landlord may raise rent to any market-rate amount with proper notice.

Frequently Asked Questions

How much can my landlord raise the rent in Oregon in 2025?

For 2025, the maximum is 10%. The statutory formula under ORS § 90.323 is West-region CPI + 7%, but it is held to an absolute 10% ceiling. With the published West Urban CPI-U input at 3.5%, the formula would reach 10.5%, so the hard cap controls and the limit is 10%.

Is rent control legal in Oregon?

Yes. Oregon enacted the first statewide rent control law in the United States through SB 608 in 2019, codified at ORS § 90.323. It is a uniform statewide cap rather than a patchwork of city ordinances, so the same rule applies whether you rent in Portland, Eugene, Salem, or a rural county.

How much notice does my landlord have to give for a rent increase?

Under Oregon law a landlord may raise rent no more than once in any 12-month period, and the increase cannot exceed the annual cap. Written notice is required before any increase takes effect; confirm the exact notice period for your tenancy type, because the limit on frequency (one increase per 12 months) applies regardless.

Does the cap apply to my unit?

It applies unless your unit is exempt. The two exemptions are dwelling units first occupied within the last 15 years and subsidized affordable housing already held to a lower rent ceiling. If your building is older than 15 years and is not income-restricted, the 10% cap applies to you.

This page summarizes Oregon's statewide rent increase rules under ORS § 90.323 (SB 608, 2019) and the related just-cause provisions of ORS § 90.427. The maximum allowable percentage reflects the West Urban CPI-U for September 2023–September 2024 as published by the U.S. Bureau of Labor Statistics and the Oregon Department of Justice, which posts the official annual figure. Last reviewed June 2026. This is informational and not legal advice; consult the Oregon DOJ or a qualified attorney for your specific situation.

Related Guides for Oregon Landlords

Rent Increase Laws in Other States

Statutory data sourced from published Oregon law (ORS § 90.323 (HB 2001, 2019, first statewide RC in US)), BLS Consumer Price Index (2024-2025), and state agency publications. Census ACS 2023 5-Year Estimates for average rent. Last updated August 28, 2026. This page is informational only and does not constitute legal advice.