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Multnomah County property tax rates are determined by the combined tax rates of voter-approved levies and the base tax rate, applied to the property's Assessed Value (AV). The Assessed Value is the value set by the county assessor for taxation purposes, which may differ from market value. For the 2024 tax year (payable in 2025), the average combined rate is approximately $2.25 per $1,000 of AV. This article provides a clear breakdown of how these taxes are calculated, key deadlines, and available exemption programs.
The calculation follows a specific formula: Assessed Value (AV) x Tax Rate = Annual Tax Bill. The AV is not necessarily your home's current market price. Oregon law limits how much the AV can increase each year for tax purposes, typically to 3%. The tax rate is the sum of rates from various taxing districts where your property is located, such as the city, school district, and other municipal services. Each district's rate is applied per $1,000 of AV. For example, a home with an AV of $400,000 and a combined rate of $2.25 would have an annual tax of approximately $9,000 ($400,000 / 1,000 x $2.25).
| Assessed Value (AV) | Estimated Combined Tax Rate (per $1,000 AV) | Estimated Annual Tax |
|---|---|---|
| $300,000 | $2.25 | $6,750 |
| $500,000 | $2.25 | $11,250 |
| $700,000 | $2.25 | $15,750 |
Note: This table is illustrative. Your specific rate will vary based on your exact location within the county.
Your final tax rate is a composite of levies passed by voters to fund specific services. These can include bonds for public schools, library services, and emergency services. A significant portion of your bill often goes to education-related measures. The Tax Rate is the amount per $1,000 of assessed value used to calculate your tax obligation. Because these voter-approved measures vary by neighborhood, two homes with the same AV in different parts of Multnomah County can have different tax bills. You can find a detailed breakdown of your specific levies on the Multnomah County Assessment and Taxation website.
Property taxes in Multnomah County are payable in three installments. The first is due November 15, the second on February 15, and the third on May 15. If a deadline falls on a weekend or holiday, the payment is due the next business day. Payments can be made online, by mail, or in person. It is crucial to pay on time to avoid interest charges. The county charges a Delinquency Interest fee, which is a percentage added to late payments, accruing at a rate of 1.33% per month on the unpaid balance. Setting up reminders or using the county's automatic payment plan can help avoid these penalties.
Oregon offers several programs to assist eligible homeowners. The most common is the Property Tax Deferral program, which allows qualified seniors (62+), individuals with disabilities, or veterans to delay paying property taxes. The state essentially pays the bill on your behalf, with a lien placed on the property that is repaid when the home is sold. Another key program is the Homestead Property Tax Exemption, which is not currently available statewide but is a concept residents should understand; it would provide a reduction in the taxable value of a primary residence if enacted. Based on our experience assessment, checking your eligibility for these programs annually is a prudent financial step.
To manage your Multnomah County property tax obligations effectively, regularly review your assessment notice for accuracy, understand the voter measures impacting your rate, mark all payment deadlines on your calendar, and investigate eligibility for state assistance programs. Proactive management is the most reliable way to avoid surprises and potential financial strain.
