How do you calculate an Oregon rent increase?

Short answer

To calculate an Oregon rent increase, multiply the current rent by the published statewide cap percentage for the effective year, add the result to the current rent, and confirm no other increase has taken effect in the prior 12 months. Always verify the figure against the Oregon DAS published cap before serving notice.

When this comes up

Renewal planning, mid-portfolio rent reviews, and any time an owner or property manager needs a quick check before issuing a 90-day notice.

Oregon rule or source to check

ORS 90.324 defines the cap formula and ceiling. The applicable percentage is published annually by the Oregon Department of Administrative Services.

Practical workflow

1. Confirm the effective year. Pick the calendar year of the effective date — that determines which published cap applies.
2. Look up the published percentage. Use the Oregon DAS Office of Economic Analysis page; do not rely on memory of last year's number.
3. Multiply and add. New rent = current rent × (1 + cap%). For example, $1,500 × 1.10 = $1,650 if the cap were 10%.
4. Round sensibly. Round down to a whole dollar to stay safely under the cap. Document the rounding choice.
5. Verify the 12-month and first-year rules. Make sure no other increase took effect in the prior 12 months and that the unit is not in its first year of occupancy.

Common mistakes

Calculating off the wrong year's cap, rounding up over the limit, and forgetting that the cap applies to total rent including any base-rent components.

Related forms or workflows

An internal calculation worksheet and a standard 90-day rent increase notice are the documents typically used. If an third-party source form is needed, obtain it directly from third-party form sources.

Ask Propsistant

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Related Oregon resources

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

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