All 36 Oregon counties and county equivalents. 2 have been checked against the county's own schedule; the rest follow the state schedule below.
Oregon statutory schedule
Instalment
Due
Notes
1st third
November 16, 2026
First third due November 15; paying the full year by then earns a 3% discount.
2nd third
February 16, 2027
Second third due February 15.
3rd third
May 16, 2027
Final third due May 15; real property taxes unpaid after this date are delinquent.
www.oregonlegislature.gov Interest of 1⅓% a month accrues from the day after each installment date until paid, and real property taxes not paid on or before May 15 are delinquent under ORS 311.510.
Oregon property tax is billed and collected county by county, so the collector — not the state — issues the bill. All 36 counties follow the same three statutory installment dates and the same interest rate.
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