How does the Oregon rent increase cap work?

Short answer

Oregon caps annual rent increases on most residential units at a statewide maximum set by ORS 90.324, published each September by the Oregon Department of Administrative Services. The cap is a formula tied to CPI plus a percentage, with a hard ceiling, and only one increase is allowed in any 12-month period.

When this comes up

Any time a landlord is planning a renewal or month-to-month rent change, especially around the September publication date when the new cap is announced.

Oregon rule or source to check

ORS 90.323 governs notice and timing. ORS 90.324 sets the cap formula and exemptions. The current published cap is on the Oregon DAS Office of Economic Analysis website.

Practical workflow

  1. 1. Identify the effective year. The cap that applies is tied to the calendar year of the effective date of the increase, not when the notice is served.
  2. 2. Look up the current published cap. Use the Oregon DAS published number for that year. Do not estimate the formula yourself.
  3. 3. Confirm the property is not exempt. First-15-years new construction and certain affordable housing units have specific exemptions under ORS 90.324.
  4. 4. Check the 12-month rule. Confirm no other increase has taken effect within the prior 12 months at this unit.
  5. 5. Calculate and document. Compute the new rent at or below the cap, document the math, and prepare a compliant 90-day notice.

Common mistakes

Using the prior year's cap on a notice with a new-year effective date, stacking two increases within 12 months, and assuming a new owner resets the 12-month clock (it does not).

Related forms or workflows

An internal rent-increase calculation worksheet plus a 90-day written notice form is the typical document set. If an third-party source form is needed, obtain it directly from third-party form sources.

Related questions

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Propsistant provides educational information and workflow guidance. It is not a law firm and does not provide legal advice.

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