Property Tax Due Dates in Oregon

Oregon's property tax system is one of the most complex in the country due to Measure 50 (1997), which created two separate values for every property: the Real Market Value (RMV) and the Maximum Assessed Value (MAV). The MAV can increase only 3% per year, while the RMV fluctuates with the market. Property is taxed on the lesser of these two values — for most properties, the MAV is lower and therefore controls the tax bill. This system means long-term property owners are often taxed on values far below current market prices. However, when a property is sold or significantly improved, the MAV resets closer to the new market value.

Oregon property taxes are due November 15 and may be paid in three installments: First installment (33%): Due November 15 — receive a 3% discount if paying in full by this date Second installment (33%): Due February 15 Third installment (33%): Due May 15 If paying in full on November 15, a 3% discount applies. A 1.33% per month interest charge applies to unpaid installments after their due dates. Most counties offer online payment through the county tax collector's website. Contact your county for payment options.

Oregon property tax relief programs: Senior and Disabled Citizen Deferral — Qualifying Oregon homeowners who are 62 or older, or disabled, with income under $46,500 may defer all or part of their property taxes. Deferred taxes accrue 6% annual interest and become a lien on the property payable when the home is sold. Apply with the Oregon Department of Revenue. Veteran Exemption — Qualifying disabled Oregon veterans receive an exemption of $25,742 (2024, adjusted annually) off assessed value. Surviving spouses may continue the exemption. Apply with your county assessor. Farm and Forest Special Assessment — Agricultural and forestland assessed at special use values (farm use, forest use) rather than market value — a significant reduction for qualifying land.

Oregon property tax appeals are filed with the county Board of Property Tax Appeals (BOPTA): Deadline: File a petition with your county BOPTA by December 31 of the tax year. Process: The BOPTA hears petitions January through April. Present evidence that your Real Market Value is lower than the county determined — comparable sales or an independent appraisal. Note: You can only appeal the Real Market Value; the Maximum Assessed Value (MAV) itself cannot be directly appealed (the MAV is set by formula). A lower RMV can reduce your taxes only if the RMV drops below your current MAV. Further appeal: Appeal BOPTA decisions to the Oregon Tax Court.