Rate Breakdown

Property taxes in Jefferson County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Jefferson County

Property taxes in Jefferson County are determined by a combination of the Assessed Value (AV) of the property and the local millage rates. The assessment process is managed by the county assessor, who determines the Real Market Value (RMV) of the property. To prevent sudden tax spikes, Oregon uses a capped assessment system where the assessed value generally cannot increase by more than 3% per year, unless significant improvements are made to the property.

Millage rates represent the amount of tax paid per $1,000 of assessed value. These rates are set annually by local taxing districts, including the school district, city government, and county services. Your total tax bill is calculated by multiplying the total millage rate by your property's assessed value.

Available Exemptions

Oregon offers several programs to reduce the tax burden for eligible homeowners. To qualify, most exemptions require a formal application with the county assessor's office:

• Homeowner’s Exemption: A standard deduction for primary residences that lowers the assessed value of the home.
• Senior Citizen Freeze: Eligible seniors may "freeze" the assessed value of their primary residence, preventing further increases in the AV.
• Disabled Veterans Exemption: Significant property tax relief is available for veterans with a service-connected disability.
• Disabled Person’s Exemption: Reductions may be available for individuals with qualifying permanent disabilities.

Payment Schedule & Deadlines

Property taxes in Jefferson County are typically billed annually, but payments are split into two installments to make them more manageable:

• First Installment: Due November 15th.
• Second Installment: Due March 15th.

Payments can be made via mail, in person at the county office, or through online portals. It is critical to meet these deadlines; payments received after the due date are subject to a penalty, which typically includes a percentage-based late fee. Failure to pay over an extended period may result in the property being listed for a tax foreclosure sale.

Appealing Your Assessment

If you believe the Assessed Value or Real Market Value of your property is incorrect, you have the right to appeal. The window for filing an appeal is narrow, usually occurring shortly after the official assessment notice is mailed. To start the process, you must file a petition with the County Board of Property Tax Appeals. You will be required to provide evidence—such as recent comparable sales or a professional appraisal—to support your claim that the value is overstated. If the board does not resolve the issue, the case may be appealed further to the state's Board of Property Tax Appeals.