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Updated 2025 Tax Year

Jefferson County
Property Tax Guide

Everything you need to know about property taxes in Jefferson County, OR. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Quick Facts
Tax Rate
$0.400506 per $100 assessed value base rate, varies significantly by taxing district location
Exemptions
4+ Available
Section 1

How Property Tax Works

Jefferson County, Oregon operates under a property tax system that serves as the primary funding mechanism for essential local services including schools, fire protection, law enforcement, roads, and county operations. The county's property tax rate for the 2024-2025 levy year is $0.400506 per $100 of assessed value, though this represents a base rate that can vary significantly depending on your specific location within the county.

Property taxes in Jefferson County are calculated using Oregon's unique assessment system, where residential properties are assessed at different rates depending on the taxing district: 7.05% of actual value for school district taxes and 6.25% for all other local government taxes. Your actual tax burden will depend on which special taxing districts serve your property, including school districts, fire districts, library districts, and other local improvement districts. These special districts can add additional levies to your tax bill, meaning two properties with identical assessed values may have different total tax obligations based on their geographic location within the county.

Section 2

What Makes Up Your Tax Bill

ComponentRate per $100 AVDescription
Base County Rate$0.400506FY 2024-2025 base rate including voter-approved adjustments
School District LevyVariesAssessed at 7.05% of actual value, rate varies by district
Fire DistrictVariesAdditional levy based on district boundaries
Library DistrictVariesIf applicable to property location
Special AssessmentsVariesLocal improvement districts, bonds, other voter-approved measures

Important Note: The total effective tax rate varies significantly by location within Jefferson County due to overlapping special taxing districts. Properties may be subject to additional levies from rural fire districts, school bonds, library districts, and other local improvement districts. The base rate of $0.400506 applies to the FY 2024-2025 levy year and is subject to annual adjustment based on collected revenues and voter-approved measures.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Jefferson County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Jefferson County are triggered by specific events that change a property's assessed value during the tax year, most commonly ownership transfers or completion of new construction. When you purchase property or complete improvements, the assessor determines the new assessed value and calculates supplemental taxes based on the difference between the old and new assessments.

The supplemental tax is calculated by taking the increase in assessed value, applying the appropriate assessment rates (7.05% for school taxes, 6.25% for other local government taxes), and then multiplying by the applicable tax rates for your area. For example, if you purchase a home in March and the assessed value increases by $50,000, you would owe supplemental taxes on that increase for the remaining months of the tax year. The supplemental bill is typically issued within 90 days of the triggering event and becomes due immediately upon receipt, separate from your regular property tax installment schedule.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • School District Assessment (7.05%): $21,150
  • Other Local Government Assessment (6.25%): $18,750
  • Total Assessed Value: $39,900
  • Annual Tax (at base rate): $159.64
  • Monthly Escrow: $13.30

Example 2: $600,000 Home

  • Market Value: $600,000
  • School District Assessment (7.05%): $42,300
  • Other Local Government Assessment (6.25%): $37,500
  • Total Assessed Value: $79,800
  • Annual Tax (at base rate): $319.60
  • Monthly Escrow: $26.63

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • School District Assessment (7.05%): $70,500
  • Other Local Government Assessment (6.25%): $62,500
  • Total Assessed Value: $133,000
  • Annual Tax (at base rate): $532.67
  • Monthly Escrow: $44.39

Note: These calculations use only the base county rate. Actual taxes will be higher due to special district levies. Tax credits such as homestead deferrals require separate application and are not automatic.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Jefferson County require property tax escrow accounts, where you pay 1/12 of your estimated annual property tax bill with each monthly mortgage payment. Your lender collects these funds and pays your property taxes directly to Jefferson County on the three annual due dates: November 15, February 15, and May 15. Lenders typically conduct annual escrow analyses to ensure adequate funds are collected, adjusting your monthly payment if necessary.

If your property taxes increase due to reassessment or new special district levies, your lender will typically pay the higher amount and then adjust your monthly escrow payment going forward. You'll receive an escrow analysis statement showing any shortage or surplus. For properties with tax credits or exemptions, it's important to ensure your lender is aware of these adjustments, as they may need to modify the escrow payments accordingly. Property owners should verify that their mortgage servicer is making payments on time to avoid late penalties, and can access payment records through the Jefferson County tax collector's website.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are Jefferson County property taxes due for the 2024-2025 tax year? A: Property taxes are divided into three equal installments: first third due November 15, 2024; second third due February 15, 2025; and final third due May 15, 2025. If any due date falls on a weekend or holiday, payment is due the next business day.

Q: What tax credits are available and do they require application? A: Oregon offers several tax credits including the homestead deferral for senior citizens and disabled persons, which requires annual application. Most tax credits are NOT automatic and require filing with the county assessor. Contact the Jefferson County Assessor's Office to determine eligibility and obtain application forms, as deadlines vary by program.

Q: How does Oregon's homestead credit work? A: Oregon's homestead program primarily functions as a deferral system for qualifying seniors and disabled persons, not a reduction in assessed value. This program caps annual assessment increases and defers taxes beyond your ability to pay, but requires annual income qualification and application. It does not automatically reduce your property's assessed value.

Q: When are properties reassessed in Jefferson County? A: Oregon requires annual assessment of all properties as of January 1st each year. The county assessor determines actual market value and applies the statutory assessment ratios. Property owners receive assessment notices in the fall and have appeal rights if they disagree with the valuation.

Q: What are the penalties for late property tax payments? A: Interest accrues on unpaid property taxes at a rate set annually by the state. Additional penalties may apply for severely delinquent accounts, and properties can eventually be subject to tax foreclosure if taxes remain unpaid for multiple years.

Q: Can I pay my property taxes online? A: Yes, Jefferson County offers online payment options through their official website. You can pay by electronic check or credit card, though credit card payments may include convenience fees. The county also accepts payments by mail, in person, or through authorized payment centers.

Q: Why do properties in the same neighborhood have different tax rates? A: While properties may have similar assessed values, the total tax rate varies based on special taxing districts that serve each property. Different areas may be served by different fire districts, school districts, library districts, or other special assessment areas, resulting in varying total tax obligations.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Jefferson County Board of Property Tax Appeals by December 31st of the tax year. You'll need to provide evidence that your property's assessed value exceeds its actual market value as of January 1st. The county assessor's office can provide appeal forms and procedures.

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