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General Information and Frequently Asked Questions

Find out about tax statement color, timely payments, interest calculations, and property tax prepayments, and get answers to frequently asked questions.

Tax statement color

All property owners will be mailed a tax statement. Property owners are ultimately responsible for paying the taxes, but the statement color may indicate that another party intends to pay.

Yellow statement - A mortgage company or the Oregon Dept of Revenue has requested the tax statement and intends to pay.

If you have recently refinanced, sold or purchased the property, please contact your mortgage company to confirm who will pay the taxes.

Green statement - You are responsible for paying the taxes.

Tax payment schedule

  • July 1 - First day of fiscal tax year
  • Early October - Tax roll certification
  • October 25 - Tax statement mailing deadline
  • November 15* - Due date for one of the following payment options:
    • 1/3 installment payment - No discount - Additional payments due Feb 15 and May 15
    • 2/3 installment payment - 2% discount - Additional payment due May 15
    • Full payment - 3% discount
  • February 15* - 2nd installment payment due date**
  • May 15* - 3rd installment payment due date**
  • Mid-June - Delinquent notice mailing
  • June 30 - Last day of fiscal tax year

*If the 15th falls on a weekend or holiday, payments will be received as timely the next business day.

**If paying by installments, courtesy reminder notices will be mailed for the February and May installments.

Timely payments

  • Payments must be POSTMARKED on or before the due date to be received as timely for a discount and to avoid interest.
  • Postmark is an official mark imprinted on mail that indicates the location and date the mail piece was accepted into Postal Service custody.
  • To ensure a timely postmark, especially on or close to the due date, please consider going inside a postal office to have the payment postmarked in your presence.
  • Payments are always credited first to any fees and then to the oldest tax year for which taxes are owing.

Due to a high volume of November 15 payments received, timely payments may be processed through the end of November. Call the tax office before making a stop payment and/or a duplicate payment.

Interest calculations

Interest is charged at a rate of 1.333% monthly, 16% annually. Interest is accrued on past due installment payments accordingly:

  • First one-third installment payment, interest begins accruing on December 16.
  • Second one-third installment payment, interest begins accruing on February 16.
  • Third one-third payment, interest begins accruing on May 16.

Property tax prepayments

In general, Washington County is unable to accept prepayments on property taxes. Some exceptions include:

  • paying for omitted property
  • paying estimated taxes to partition, plat, or subdivide a parcel

FAQs

Yes. Information such as general property information, sales and deed information, assessed values, and improvement information is available through the County’s tax map feature, Intermap. At the Intermap site, searches can be done using a Situs Address, Account Number, or Tax Lot ID. At the Map Location, scroll down the page to the section named Additional Information. Click on the Sub Report named Assessment & Taxation Information.

Go to Intermap

For the 2024-2025 tax year, the majority of taxpayers, approximately 188,000 accounts, will receive tax statements that have increased when compared with last year. Approximately 98,000 accounts will have tax increases between 0 and 5 percent, and 90,000 accounts will have tax increases over 5 percent. Additionally, approximately 9,200 taxpayer accounts will reflect a tax decrease. These reductions are primarily due to local option levies expiring, expired bonds, compression, or the taxing districts levying a lesser amount. See the attached listing of Typical Residential Properties with examples of values and taxes for typical houses in various parts of the County.

Many factors can affect the amount of your tax bill. If you live in a taxing district that has new voter approved bonds or local option levies, your property taxes may increase more than 3%. If you made any major improvements or changes to your property prior to the assessment date of January 1, your property taxes may increase more than 3%.

All property owners receive a tax statement. If you did not receive a tax statement by November 1, you should call the tax collections office at 503-846-8801 or go to www.washcotax.org to view or print a copy of your statement.

Please contact the Cartography Division at 503-846-8871 to report ownership corrections.

More information on ownership corrections

At the time the property tax bills were printed, the ownership of the property had not been transferred in the Assessment & Taxation system. In order for the new owner to receive a bill, please contact the tax office at 503-846-8801. In most instances, the ownership has been updated and a new bill can be generated and forwarded to the new owner.

The new improvements will be appraised at market value. This additional value will then be adjusted to the average level of other property and added to the current assessed value. For example, this year the adjustment factor for residential property is 0.514. This factor is called the CPR or “Changed Property Ratio”. The assessment date is January 1, which means that the tax bill you receive in October is based on the actual value in place on the previous January 1. For example, if your house was under construction and only 50% complete on January 1, the tax bill payable on November 15, would reflect 50% of the value of the finished house.

There are four major reasons your property taxes can increase by more than 3%.

  1. If you live in a taxing district that has new voter-approved Bonds or Local Option Levies, your property taxes may increase more than the anticipated 3%. There are new levies or bonds approved or reauthorized by the voters that will be reflected in this year’s tax bill.

  1. If you made any major renovations or changes to your property in the 12 months prior to the assessment date of January 1, your property taxes may increase more than the anticipated 3%. The next two reasons are more complicated and require the definition of key terms to help understand the process. These terms include: Assessed Value is the lower of the Real Market Value or the Maximum Assessed value. Real Market Value is the amount determined by the County Assessor for a property that would sell in an arm’s length transaction between a willing buyer and seller on January 1 of each year. Maximum Assessed Value is the taxable value limit established for each property and is allowed to increase each year by no more than 3%.

  1. Your Assessed Value (AV) may have increased more than 3%. Under Oregon law, your AV is the lesser of your Real Market Value (RMV) and your Maximum Assessed Value (MAV). If your RMV has dropped below your MAV, it is possible for your RMV to increase more than 3% from last year yet still be less than your MAV. As the lesser of the two values, RMV then becomes your AV. Your taxes are calculated on the lower of the Real Market Value or the Maximum Assessed Value. This then becomes your Assessed Value.

  1. The last reason is due to compression. The operating taxes for schools and local government are limited. Each account is tested to determine if the operating taxes based on the assessed value exceed the limit of $5.00 per $1,000 of RMV for schools and the $10.00 per $1,000 of RMV for local government. If the limit is reached, the tax bill is reduced (compression). As the market value increases, the difference between the market and the assessed values may increase as well. This reduces the chance for compression, but can also increase your tax liability if compared to a prior year’s tax that was in compression. If your account has been in compression, it is possible that as the real market values increase you will see an increase in your property tax bill by more than 3%.

For 2024-25 tax year, property tax statements account for a total of $1.559 billion, which will pay for the services mentioned above. This is an increase of 5.7 percent or $84 million compared to last year. The increase in total taxes is due to several factors including the 3 percent increase in assessed value on most properties, additional value from new construction activity, and new or increased taxing district levies. Please see our 2024 Fact Sheet for more information.

The majority of taxpayers, approximately 188,000 accounts, will receive tax statements that have increased when compared with last year. Approximately 98,000 accounts will have tax increases between 0 and 5 percent, and 90,000 accounts will have tax increases over 5 percent. Additionally, approximately 9,200 taxpayer accounts will reflect a tax decrease. These reductions are primarily due to local option levies expiring, expired bonds, compression, or the taxing districts levying a lesser amount. See the attached listing of Typical Residential Properties with examples of values and taxes for typical houses in various parts of the County.

You may appeal the real market, maximum assessed, specially assessed, or assessed value of your property to the Board of Property Tax Appeals no later than December 31. You can get petition forms and information by calling 503-846-3854. These forms are also available online.

Delinquent taxes are included in the amount listed in the "Payment Options" on the front of the tax statement.

Call the collections office at 503-846-8801 if you have any questions.

Interest on any past due amounts accrue on the 16th of each month at a rate of 16% annually or 1 1/3 per month.

All payments are applied to the most delinquent tax year.

You may have received more than one property tax statement because a tax lot is split by taxing boundaries.

Generally, you will also receive more than one property tax statement if you own both a manufactured structure and the land on which it resides.

Contact Us

Property Taxes

Phone

503-846-8801