Oregon's maximum annual rent increase for 2027 is 10% — up from 9.5%, and still a ceiling, not an entitlement

The claim-precision ladder

• This is the annual calculation, not a new law. The statutory framework (ORS 90.323 and 90.324) is unchanged by this announcement. What changed is the number: DAS published the 2027 maximum on September 28, 2026, as the statute requires each year by September 30.
• The headline figure is 10% for most covered tenancies, up from 9.5% for 2026. Public reporting describes the formula as the lesser of 10% or 7% plus the Consumer Price Index; for 2027 the 10% ceiling applies.
• A cap is a maximum, not a permitted default. It does not authorize a 10% increase where a lease, a program rule, or another law limits the increase further.
• It does not remove other requirements. Reporting describes the existing rules as unchanged: no rent increase during the first year of a tenancy and at least 90 days' written notice for most residential tenancies after that.
• Newly built housing is generally outside the cap. Reporting, citing ORS 90.323, says the statewide limit applies only to buildings more than 15 years old. Confirm how the building-age test applies to a specific property.
• Different tenancy types carry different percentages. Reporting indicates a 6% maximum for facilities with more than 30 spaces (such as manufactured dwelling parks and marinas) that are subject to ORS 90.600. Do not apply the 10% figure to those tenancies.
• State-level limits do not displace other rules. Subsidized tenancies and local ordinances may impose separate constraints.

What changes for Oregon

For rent increases taking effect in calendar year 2027, the applicable ceiling for most covered tenancies is 10%, rather than 2026's 9.5%. An increase taking effect in 2026 remains subject to the 2026 percentage. Housing providers pricing renewals, and tenants reviewing notices, should therefore identify the effective date of the increase before choosing which year's percentage to apply.

Who is affected

Oregon landlords and property managers of covered residential rentals, tenants receiving rent-increase notices, and manufactured-dwelling and marina operators who need to confirm which percentage applies to their tenancy type.

Operational guidance

1. Key the percentage to the effective date, not the notice date. Increases effective in 2026 use the 2026 percentage; increases effective in 2027 use the 2027 percentage. Confirm with counsel how notices served in 2026 for 2027 effective dates are treated.
2. Confirm coverage first. Check building age, tenancy type, and whether the tenancy is within its first year before calculating any permitted increase.
3. Treat 10% as an upper bound. Check leases, subsidy program requirements, and local rules for lower limits.
4. Use the right figure for manufactured-dwelling and marina tenancies. Do not reuse the general percentage.
5. Verify against DAS before relying on the figure. The official DAS methodology and data are the primary source; confirm the published percentage and CPI inputs there.
6. Preserve the paper trail. Record the notice date, effective date, percentage applied, and basis for coverage or exemption for each increase.

Where FairSync fits

An annual percentage is the kind of fact that goes stale on a fixed date and varies by situation. FairSync treats the rent-cap percentage as a year-keyed, time-boxed record: the 2026 value (9.5%) continues to answer questions about increases effective in 2026, and the 2027 value (10%) is attached to increases effective in 2027, so the answer follows the calendar rather than someone's memory. Tenancy type and building-age coverage are handled as qualifiers on the answer rather than footnotes, and where a question involves a manufactured-dwelling or marina tenancy, FairSync flags that a different percentage may apply. Because FairSync's jurisdiction-aware, ZIP-based layer knows when a location is subject to additional local or program rules, rent-increase answers point to those rules and to qualified counsel instead of presenting the state ceiling as the whole answer.

Coverage note: FairSync's compliance guidance is available for Oregon today, with additional jurisdictions expanding.