Clackamas County Assessment Records
Clackamas County property tax records span a large and diverse area south of Portland. The county includes cities like Oregon City, Lake Oswego, West Linn, Milwaukie, and parts of Happy Valley. The Clackamas County Assessment and Taxation Department manages all property appraisals, tax billing, and collections. Residents can search these property tax records online or visit the office at 150 Beavercreek Road in Oregon City. These records contain the assessed values, ownership details, and tax amounts for every parcel in the county.
Clackamas County Assessment and Taxation
The Clackamas County Assessment and Taxation Department handles two main jobs. First, it appraises and assesses every taxable parcel. Second, it bills and collects property taxes from owners across the county. The office sits in Oregon City, the county seat, with some services also available at the County Courthouse.
Staff maintain a detailed property database. It holds ownership records, assessed values, building details, and sales data. The cartography section creates and updates digital tax lot maps and GIS layers. These maps show parcel boundaries, lot numbers, and other geographic data that supports both assessment work and land use planning in Clackamas County.
Clackamas County is one of the three metro-area counties in the Portland region. Its tax base includes high-value homes along the Willamette River, suburban subdivisions, industrial sites, and rural farmland. This mix means the assessor's office deals with a wide range of property types and values each year.
Search Clackamas County Property Tax Records
The Clackamas County Property Tax Account Lookup lets anyone search records online. Users can find parcels by account number, owner name, address, or tax lot number. The system shows current and past tax statements with full value breakdowns.
Each record displays real market value, maximum assessed value, and assessed value. Tax amounts are split by district so owners can see what goes to schools, the county, cities, and special districts. Property details like lot size, building square footage, year built, and construction type appear in the record too. Sales history shows past transfers with dates, prices, and document references.
The Oregon Department of Revenue provides guidance that applies to all Clackamas County property tax records. The state site has forms, guides, and links to help taxpayers understand the system.
The image below shows the Oregon DOR property tax page, a resource for Clackamas County taxpayers.
This page covers statewide rules on assessments, exemptions, and appeals that directly affect Clackamas County property owners.
Note: Clackamas County also offers electronic delivery of tax statements for owners who want to go paperless.
Clackamas County Property Tax Values Explained
Oregon's property tax system rests on Measure 5 and Measure 50. Measure 5 caps tax rates at five dollars per thousand for schools and ten dollars per thousand for general government. Measure 50 froze assessed values at 90% of 1995 levels and limits yearly growth to 3%.
In Clackamas County, rising home prices have pushed real market values far above maximum assessed values in many areas. A Lake Oswego home worth $800,000 on the market might have a maximum assessed value of only $400,000. The assessed value used for the tax bill is the lower figure. Under ORS 308.156, that maximum assessed value grows by just 3% each year unless the owner makes major changes to the property.
New construction in Clackamas County is valued using the changed property ratio. This ratio ties new parcels to existing value patterns so that similar homes carry similar tax loads. The formulas behind this ratio draw on the framework in ORS Chapter 306, which governs property tax administration statewide.
Clackamas County Recording Division
The Clackamas County Recording Division files deeds, mortgages, liens, and easements. The office is at 1710 Red Soils Court, Suite 100 in Oregon City. Every document that transfers or encumbers real property in Clackamas County must be recorded here to become part of the official record.
Recording fees are set by Oregon Revised Statutes and vary by document type, page count, and services needed. Documents must meet strict formatting rules. They must be legible, include a complete legal description, and carry proper notarization. Items that fall short get sent back for correction.
E-recording is available through approved vendors. Title companies, attorneys, and lenders use this service to submit documents without a trip to the office. Recorded documents are open to the public. Terminals at the office let users search records from 1965 forward. Older Clackamas County property records may be on microfilm or at the Oregon State Archives.
Appealing Clackamas County Property Tax Records
Clackamas County owners who question their assessed values should start with the assessor. A phone call or visit can clear up many issues. Staff can check the property record for errors and explain how values were set.
Formal appeals go to the Clackamas County Property Valuation Appeals Board. The filing window runs from when tax statements are mailed in late October through December 31. The appeal form, available on the county website, must name the property, the value being challenged, and the value the owner believes is correct. Supporting documents should be included.
Hearings take place between February and April. Owners get notice of their hearing date and may appear or submit written testimony. The board reviews all evidence and issues a decision. Those who want to go further can appeal to the Oregon Tax Court within 30 days. The court requires evidence such as comparable sales or independent appraisals to support a different value for the Clackamas County parcel.
The screenshot below shows the Oregon Tax Court, which handles property tax appeals from Clackamas County and all other Oregon counties.
Filing fees apply at the Tax Court level, and the Regular Division follows more formal trial rules than the Magistrate Division.
Clackamas County Tax Exemptions
Several exemption programs appear in Clackamas County property tax records. Qualifying owners can reduce their tax burden through these state-authorized programs.
- Senior citizen property tax deferral
- Disabled veteran exemption
- Farm use special assessment
- Forestland special assessment
- Enterprise zone exemptions
Under ORS 307.030, all real and tangible personal property in Clackamas County is subject to tax unless a specific exemption applies. Government property, religious buildings, and certain charitable sites are excluded by law. Applications for deferral and exemption programs must reach the Clackamas County Assessor by statutory deadlines to take effect for the current year.
Note: Clackamas County property tax records will show an exemption code on the account once a program is approved.
Tax Payments in Clackamas County
Property tax bills in Clackamas County go out each fall. Owners can pay online, by mail, by phone, or in person. Credit cards, debit cards, electronic checks, and paper checks are all accepted. A discount applies to full payments made by the November deadline.
Owners can also split the bill into installments. Late payments draw interest charges. The Oregon DOR public records page has details on statewide tax collection rules that apply in Clackamas County. Payment history is tracked in the property tax records, so owners can confirm their account is current at any time.
The image below shows the ORS 308.156 statute page, which defines the maximum assessed value cap that shapes Clackamas County tax bills.
This statute is the legal backbone of the 3% annual cap on assessed value increases that benefits many Clackamas County homeowners.