Washington County Property Tax Lookup
Washington County property tax records cover one of the most populated counties in Oregon. The Department of Assessment and Taxation in Hillsboro maintains records for parcels in Beaverton, Tigard, Tualatin, Sherwood, Forest Grove, and dozens of other communities. Searching these property tax records gives owners and buyers access to assessed values, tax amounts, payment history, and ownership data. The county offers both online and in-person options for finding the information you need.
Washington County Assessment and Taxation Office
The Washington County Department of Assessment and Taxation has its main office at 155 N First Avenue, Room 130 in Hillsboro. The department handles property assessment, tax collection, deed recording, and related services. Lobbies are open to the public, though the county also encourages use of phone, email, mail, and online tools for routine tasks.
This hybrid service model gives taxpayers choices. Simple questions about a tax bill or payment status can often be handled by phone or online. More complex matters like exemption applications or value disputes may benefit from an in-person visit. The office keeps regular business hours and staff are available to assist with all types of property tax record inquiries.
Contact numbers for specific services include:
- Recording and Marriage Licenses: 503-846-8752
- Property Value Appeals Board: 503-846-3854
- Property Taxes: 503-846-8801
- Appraisal: 503-846-8826
- Senior and Veteran Exemptions: 503-846-8741
Note: Each phone line connects to a team that handles that specific area, so calling the right number saves time.
How to Search Washington County Property Tax Records
The Washington County Property Information portal lets users search by account number, address, or owner name. Results display the current tax year data along with past records for comparison. You can view assessed values, tax breakdowns by district, and payment status for any parcel in the county.
The portal also shows sales history for each property. This includes past transfer dates, sale prices, and document types. Tax statements break down the bill by district, showing how much goes to schools, the city, the county, and special districts. These details help owners understand exactly where their tax dollars go.
Washington County provides tools for viewing how Measure 5 and Measure 50 affect individual tax bills. Tax calculators and related resources are available through the property information system. The screenshot below shows the county's assessment and taxation page.
This county portal is the primary starting point for anyone searching Washington County property tax records online. It provides direct access to account data without requiring an office visit.
Washington County Property Tax Assessments
Every parcel in Washington County receives three key values. Real market value reflects what the property would sell for. Maximum assessed value is capped at 3% annual growth under ORS 308.156. Assessed value is the lower of those two figures and forms the base for the tax calculation.
Washington County is home to a large and diverse tax base. Residential neighborhoods in Beaverton and Tigard sit alongside tech campuses, retail centers, and farmland in the Tualatin Valley. Property values vary widely based on location, use, and condition. The appraisal team reviews sales data, inspects properties, and applies mass appraisal methods to keep values fair across the county. To reach the appraisal team directly, call 503-846-8826.
The gap between market and assessed values is often significant in Washington County. Rapid growth in home prices over the past two decades means many older homes have assessed values well below their current market worth. New construction enters the roll using the changed property ratio, which ties the new home's maximum assessed value to the average gap for similar existing properties in the same area.
Note: A property's real market value may drop in a down market, but the maximum assessed value continues to grow at up to 3% per year unless the market value falls below it.
Appealing Washington County Property Tax Values
Owners who disagree with their Washington County property tax assessment can file an appeal. The first step is to contact the appraisal team at 503-846-8826. Many questions about value are resolved through informal review when the owner provides new sale data or points out errors in the property record.
If the issue persists, the owner can file a formal appeal with the Washington County Property Valuation Appeals Board at 503-846-3854. The filing window opens when tax statements arrive in late October and runs through December 31. The board holds hearings between February and April. Owners may appear in person, submit written testimony, or send a representative. Hearings are designed to be accessible to people without legal training.
Board decisions can be appealed to the Oregon Tax Court within 30 days. The Magistrate Division handles most value cases. Evidence of market value is essential. Recent comparable sales, independent appraisals, and documentation of property conditions all strengthen an appeal. The Regular Division takes on complex legal matters and appeals from the Magistrate level.
Washington County Tax Payments
Tax statements go out each fall. Owners who pay the full bill by mid-November earn a discount. A three-part payment plan divides the total into installments due in November, February, and May. The property taxes line at 503-846-8801 can answer payment questions.
Washington County accepts payments online, by mail, by phone, and in person at the Hillsboro office. The county website provides a portal for electronic payments. Drop boxes are also available for after-hours use. Late payments carry interest charges that add to the balance owed. Payment history is part of the Washington County property tax records, so owners can check their status at any time through the online portal.
If taxes remain unpaid for three consecutive years, Oregon law permits the county to start foreclosure proceedings. Owners who face difficulty should contact the office early to explore options before penalties build up.
Oregon's Tax System and Washington County
Oregon's property tax system is shaped by two key ballot measures. Measure 5 of 1990 set rate caps at five dollars per thousand of real market value for schools and ten dollars per thousand for general government. Measure 50 of 1997 froze assessed values and limited annual growth to 3%. These rules apply to every Washington County parcel.
Under the ORS Chapter 306 framework, the Oregon Department of Revenue oversees county assessment practices. The state runs ratio studies each year to verify that Washington County assessments are fair and uniform. If values fall out of line, the state can order changes. The Oregon DOR property tax division publishes guides and data that explain these oversight processes.
The maximum assessed value cap is one of the most important rules in Oregon property taxation. It directly affects what owners pay each year and creates the gap between market and assessed values seen in many Washington County property tax records.
Recording Services in Washington County
The Washington County Recording Division accepts deeds, mortgages, liens, and other property documents for recording. The office is at 155 N First Avenue, Room 130 in Hillsboro. For questions, call 503-846-8752.
Documents must meet formatting requirements including legible text, complete legal descriptions, and proper notarization. The division rejects filings that do not meet standards. E-recording is available through approved third-party vendors, which title companies and lenders use for electronic submission.
Recorded documents are public records. Anyone can search the index or request copies. Public access terminals at the county office cover records from 1965 to the present. Older Washington County property documents may be found through the Oregon State Archives for historical research purposes.
Note: Recording a document creates public notice of property interests and is a critical step in every real estate transaction in Washington County.