Oregon Rent Increase Rules: Caps, Exemptions & Notice
The short answer. Oregon caps rent increases at 9.5% for 2026 and 10% for 2027 (Oregon Department of Administrative Services). Manufactured dwellings and marinas with more than 30 spaces have a flat 6% cap. No increase is allowed during the first year of tenancy, increases are limited to once in any 12-month period, and 90 days' written notice is required.
This tool is for information only. It is not legal, tax, or financial advice. Verify current law with the official sources cited before acting.
Oregon's rent stabilization law sits in ORS 90.323 and 90.324, with the annual maximum published by the Oregon Department of Administrative Services (DAS). Check a specific increase with the rent increase checker, and build the written notice with the rent increase notice letter generator.
Current caps
| Case | Cap | Period |
|---|---|---|
| General cap | 9.5% | 2026 |
| General cap | 10% | 2027 |
| General cap (context) | 10.0% | 2025 |
| Manufactured dwellings / marinas, more than 30 spaces | 6% flat | From September 1, 2025 (HB 3054) |
| Manufactured dwellings / marinas, 30 or fewer spaces | General cap | Same as general cap |
How the cap is computed
The cap is the lesser of 10% or 7% plus CPI, where CPI is the CPI-U for the West Region, September annual 12-month average change, under HB 3113 (the HB 3054 text simplified the definition to "CPI"). DAS publishes the annual maximum; the 2026 figure of 9.5% and the 2027 figure of 10% are the official published figures.
Worked example. A covered unit (15 or more years old) rents for $1,500 a month, the tenancy is older than one year, and the landlord proposes a 12% increase effective in 2026. The 9.5% cap allows a maximum increase of $142.50, for a maximum lawful rent of $1,642.50. The proposed increase ($180, to $1,680) exceeds the cap by $37.50 a month. In 2027, with a 10% cap, the maximum would be $1,650 — a 12% increase would still exceed it.
Exemptions
A dwelling whose first certificate of occupancy was issued less than 15 years before the notice date is exempt from the percentage cap; the notice and first-year rules still apply. Regulated or certified affordable housing is also exempt where the change does not increase the tenant's portion or is required by program eligibility requirements or by a change in the tenant's income. The full exemption text in ORS 90.323(5) was verified on oregonlegislature.gov on November 12, 2026.
Frequency limits
No rent increase is allowed during the first year of a tenancy, and rent may be increased at most once in any 12-month period.
Notice rules
Oregon requires 90 days' written notice, or 7 days for week-to-week tenancies (ORS 90.323). The notice must specify four items: (a) the amount of the rent increase, (b) the amount of the new rent, (c) the facts supporting the exemption, if the increase is above the allowed amount, and (d) the date the increase becomes effective.
Delivery follows ORS 90.155 (full text verified on oregonlegislature.gov, November 12, 2026): personal delivery; first-class mail; mail plus attachment to a designated location only if the written rental agreement allows it (and the agreement must also provide for such service from tenant to landlord); and email only if allowed under a written addendum executed by both parties after the tenancy begins and the tenant has occupied the premises, specifying both parties' email addresses, with at least 3 days' written notice to terminate or change an address, and including the prescribed IMPORTANT NOTICE form. Alternative methods are allowed only in addition to a listed method. ORS 90.155(2) states that if a notice is served by mail, the minimum period for compliance or termination of tenancy, as appropriate, is extended by 3 days, and the notice must include the extension — but that wording does not name rent increase notices, so whether the extension applies to them is not explicit and this site does not add it automatically. Day counting follows ORS 90.160: consecutive calendar days, not including the initial day of service, including the last day until 11:59 p.m.
Portland: no local cap, plus relocation assistance
Portland has no local percentage cap; the Oregon state cap applies within Portland city limits. Portland City Code 30.01.085 adds two layers on a rolling 12-month basis:
- Notice: 90 days' written notice for increases of 5% or more over a rolling 12 months, or the lease period if longer. The increase notice must specify the amount of the increase, the amount of the new rent or associated housing costs, and the date, as calculated under the Act, when the increase becomes effective.
- Relocation assistance triggered by increases of 10% or more:
| Unit size | Relocation assistance |
|---|---|
| Studio / SRO | $2,900 |
| 1 bedroom | $3,300 |
| 2 bedrooms | $4,200 |
| 3 or more bedrooms | $4,500 |
The tenant requests relocation assistance in writing within 45 days, the landlord pays within 31 days, and there is a 6-month relocation period (repay and stay, or vacate). Payments must be reported to the Portland Housing Bureau within 30 days, and noncompliance liability can reach 3 times the monthly rent plus damages and fees. Under PCC 30.01.085(D), verified on November 12, 2026, a landlord must include a description of a tenant's rights and obligations and the eligible amount of relocation assistance with each and any termination notice, increase notice, and relocation assistance payment — use the Portland Housing Bureau form "Tenant Notice of Rights and Responsibilities" (Form 30.01.085-2019).
Frequently asked questions
What is the maximum rent increase in Oregon for 2026 and 2027?
The Oregon Department of Administrative Services set the maximum rent increase at 9.5% for 2026 and 10% for 2027. The 2025 cap, for context, was 10.0%.
How is the Oregon rent increase cap calculated?
The cap is the lesser of 10% or 7% plus CPI, where CPI is the CPI-U for the West Region, September annual 12-month average change. The Department of Administrative Services publishes the annual maximum each year.
What is the rent increase cap for manufactured dwellings in Oregon?
Manufactured dwellings and marinas with more than 30 spaces have a flat 6% cap under HB 3054, effective September 1, 2025. Facilities with 30 or fewer spaces use the general state cap formula.
Which rentals are exempt from the Oregon rent increase cap?
A dwelling whose first certificate of occupancy was issued less than 15 years before the notice date is exempt from the percentage cap, although notice and first-year rules still apply. Regulated or certified affordable housing is also exempt where the change does not increase the tenant's portion or is required by program eligibility requirements or a change in the tenant's income. The full exemption text in ORS 90.323(5) was verified on oregonlegislature.gov on November 12, 2026.
How much notice is required for a rent increase in Oregon, and how often can rent go up?
Oregon requires 90 days' written notice, or 7 days for week-to-week tenancies. No increase is allowed during the first year of tenancy, and increases are limited to at most once in any 12-month period.
Does Portland have its own rent increase cap?
No. Portland has no local percentage cap, so the Oregon state cap applies. Portland requires 90 days' written notice for increases of 5% or more over a rolling 12 months, and relocation assistance for increases of 10% or more: $2,900 for a studio or SRO, $3,300 for one bedroom, $4,200 for two bedrooms, and $4,500 for three or more bedrooms.
Related pages
- Rent increase checker — check a specific increase against the Oregon cap.
- Rent increase notice letter generator
- California rent increase rules
- Washington rent increase rules
- Security deposit interest calculator
- Nanny tax calculator
Sources
- Oregon Department of Administrative Services, Rent stabilization — oregon.gov/das/OEA/Pages/Rent-stabilization.aspx — accessed November 12, 2026.
- Oregon DAS newsroom, DAS publishes annual maximum rent increase 2027 — apps.oregon.gov newsroom post — accessed November 12, 2026.
- Oregon DAS newsroom, Correction: 2026 rent stabilization percentages — apps.oregon.gov newsroom post — accessed November 12, 2026.
- City of Corvallis, Annual maximum rent increase — corvallisoregon.gov — accessed November 12, 2026.
- Oregon Legislature, HB 3113 enrolled text (ORS 90.323 contents) — olis.oregonlegislature.gov — accessed November 12, 2026.
- Oregon Revised Statutes Chapter 90 (ORS 90.155, 90.160, 90.323, 90.324, full current text) — oregonlegislature.gov — accessed November 12, 2026.
- Oregon Legislature, 2001 Chapter 596 (ORS 90.155 service methods) — oregonlegislature.gov — accessed November 12, 2026.
- Oregon Legislature, SB 1069 proposed amendment (ORS 90.155 electronic service) — olis.oregonlegislature.gov — accessed November 12, 2026.
- City of Portland, PCC 30.01.085 — portland.gov — accessed November 12, 2026.
- Portland Housing Bureau, Renter relocation assistance — portland.gov — accessed November 12, 2026.
- Portland Housing Bureau, Tenant Notice of Rights and Responsibilities, Form 30.01.085-2019 — sandbox.portland.gov — accessed November 12, 2026.
Rates and rules verified November 12, 2026 from official sources.