When you compare property tax in Oregon vs. Washington, Oregon generally takes a larger bite out of a home’s market value, but the two systems are built so differently that the headline rate hides most of what you actually pay. Oregon caps how fast your taxable value can grow at 3% a year. Washington reassesses every property at full market value annually. Oregon has no sales tax. Washington has no state income tax. For anyone weighing a move across the Columbia, or just trying to understand their bill, the property tax number is one piece of a much bigger calculation.
How Each State Values Your Home
Oregon’s system runs on Measure 50, the 1997 constitutional amendment that split every property into two numbers.1Oregon State Legislature. The New Direction of the Oregon Property Tax System Under Measure 50 One is the Real Market Value, what the house would sell for. The other is the Maximum Assessed Value, which can grow by no more than 3% per year. Your tax bill uses the lower of the two.2Oregon State Legislature. Oregon Code 308.146 – Determination of Maximum Assessed Value and Assessed Value
Over time, those two numbers drift apart. A long-time owner of a $500,000 house might be taxed on an assessed value closer to $300,000 because the 3% cap kept crawling while the market sprinted. The gap is intentional. It shields owners from sudden spikes when the housing market heats up, and it rewards staying put.
Washington does the opposite. Every property is assessed each year at 100% of its true and fair market value.3Washington State Legislature. Washington Code 84.40.030 – Manner of Assessment, Appraisal, Comparable Sales, Income Approach, Cost Approach Assessors use recent comparable sales, construction costs, and rental income to arrive at a number, and physically inspect each parcel at least once every six years, with statistical updates in between.4Washington State Department of Revenue. Appealing Your Property Assessment to the County Board of Equalization When your value changes, a Change of Value Notice arrives in the mail with an explanation and your appeal rights.
The upside in Washington is accuracy. Your assessment tracks the real market. The downside is volatility. When a neighborhood takes off, assessments follow, and sometimes sharply.
What You Actually Pay
Statewide averages only go so far because tax bills vary significantly by county and city. Oregon’s statewide average imposed rate for fiscal year 2024-25 was $9.18 per $1,000 of real market value, or $17.43 per $1,000 against assessed value, which is often well below market.5Oregon Department of Revenue. FY 2024-25 Oregon Property Tax Statistics Report A Portland metro homeowner with overlapping taxing districts pays noticeably more than someone in rural Eastern Oregon.
Washington’s effective rates tend to run slightly lower as a share of market value, generally in the 0.8% to 1.0% range depending on the county. Because the state assesses at full market value, that effective rate is close to the real burden with no hidden gap.
In practical terms, a $400,000 home in a typical Oregon community might generate a tax bill of $3,500 to $4,500, while a $400,000 home in a comparable Washington community might produce a bill of $3,200 to $4,000. The ranges overlap enough that the specific district matters more than the state line.
What Each State Caps
Both states have constitutional limits on property taxes. They just cap different things.
Oregon Caps the Rate
Measure 5, passed in 1990, limits the tax rate any property can face: $5 per $1,000 of real market value for public schools and $10 per $1,000 for general government.6Oregon State Legislature. Oregon Code 310 – Property Tax Rates and Amounts When combined rates from overlapping districts exceed those ceilings, “compression” kicks in, and rates get reduced proportionally until they fit. The homeowner is protected. The local government loses the compressed revenue for good.
Voters can approve temporary local option levies on top of the permanent Measure 50 rates, up to five years for operations or ten years for capital projects. These levies are still subject to Measure 5 compression, so even a popular ballot measure can bring in less than expected if the district is already pressed against the rate ceiling. Voter-approved bond debt for capital construction is excluded from the $10 general government limit, which is why school and infrastructure bonds can pass without being compressed away.
Washington Caps the Revenue
Washington’s constitution caps the aggregate of all regular property tax levies at 1% of true and fair value, which works out to $10 per $1,000 of assessed value.7Washington State Legislature. Amendment 95 (2002) – Article 7 Section 2 Limitation on Levies Within that ceiling, each type of taxing district has its own statutory maximum.
The more meaningful constraint for most homeowners is the revenue growth limit. Under RCW 84.55.010, a taxing district can increase its total levy by no more than 1% per year (or the lesser of 1% or inflation, for districts over 10,000 people), plus revenue from new construction.8Washington State Legislature. RCW 84.55.010 – Limitations Prescribed That creates a floating rate. If property values in a district climb sharply, the rate falls to stay inside the revenue cap. Fast-appreciating markets often see falling tax rates even as assessed values rise. Voters can approve levies above the 1% growth limit through a ballot measure.
The Sales Tax and Income Tax Tradeoff
No honest comparison stops at the property tax bill. Oregon has no general sales tax, so residents pay nothing extra at the register but fund more government through income and property taxes. Washington has no state income tax, so wages come home intact, but sales tax ranges from roughly 7% to over 10% depending on the city.
For a household earning $100,000 a year, skipping Washington’s income tax saves thousands annually. That same household will pay sales tax on most of what it buys, and the running total adds up. Oregon’s higher property tax looks worse on paper, but the zero sales tax offsets it for people who spend heavily on taxable goods. A high earner who spends modestly may do better in Washington. A retiree on a fixed income who shops often might prefer Oregon’s structure. The right answer depends on your financial profile, which is why so many people along the Columbia River live on one side and shop on the other.
Breaks for Seniors, Disabled Homeowners, and Veterans
Oregon
Oregon runs a property tax deferral program for homeowners who are at least 62 or disabled. Your prior-year household income must fall below an inflation-adjusted threshold, set at $70,000 for the 2026 tax year, and the property must be your primary residence.9Clackamas County. Property Tax Deferral for Disabled and Senior Citizens The state pays your taxes and places a lien on the home. When the home sells, changes ownership, or the owner dies, the deferred taxes plus 6% annual interest come due. This is a loan secured by your equity, not forgiveness.
Oregon also exempts a portion of a disabled veteran’s or surviving spouse’s assessed value, $27,092 or $32,512 depending on disability rating, with the amount increasing 3% each year.10Oregon Department of Revenue. Disabled Veteran or Surviving Spouse Property Tax Exemption Veterans with a disability rating of 40% or more from the U.S. Department of Veterans Affairs, or certified by a licensed physician, qualify.11Oregon Public Law. Oregon Code 307.250 – Property of Veterans or Surviving Spouses
Washington
Washington offers an exemption, not a deferral, for homeowners at least 61 years old, retired due to disability, or veterans with a total service-connected disability rating. Combined disposable income must fall below a threshold that adjusts annually with the consumer price index; the base statutory figure was $64,000 for the 2020-2022 tax years and has been adjusted upward since.12Washington State Legislature. RCW 84.36.381 – Exemptions – Qualifications You must own and occupy the property as your principal residence.
Unlike Oregon’s deferral, Washington’s exemption permanently reduces the bill with nothing to pay back later. Washington also runs a separate deferral program under RCW 84.38 for qualifying seniors and disabled persons, which, like Oregon’s, places a lien and collects deferred taxes plus interest when the property transfers.
When Taxes Are Due and What Late Costs
Oregon
Oregon tax bills go out in the fall. Pay the full amount by November 15 and you get a 3% discount. Pay two-thirds by that date and you get a 2% discount on what you paid. You can also split the bill into three installments due November 15, February 15, and May 15.13Oregon State Legislature. Oregon Code 311.505 – Due Dates, Interest on Late Payments, Discounts on Early Payments
Miss a deadline and interest runs at one and one-third percent per month, roughly 16% annualized, on the unpaid balance. After three years of delinquency, the county can start foreclosure.14Oregon Public Law. Oregon Code 312.010 – When Real Property Subject to Tax Foreclosure
Washington
Washington splits the bill in two: the first half is due April 30, the second October 31. Miss the April deadline and the entire year’s tax becomes delinquent at once. Interest accrues at 1% per month from the delinquency date. On top of that, a 3% penalty hits on June 1 and an additional 8% on December 1 for any unpaid current-year taxes.15Washington State Legislature. RCW 84.56.020 – Taxes Collected by Treasurer, Dates of Delinquency The combination can add more than 20% to a delinquent bill in a single year.
After three years, the county treasurer issues a certificate of delinquency and begins foreclosure, which can end at a public auction.16Washington State Legislature. Washington Code 84.64 – Lien of Taxes, Tax Foreclosure
How to Appeal Your Assessment
If you think your property is overvalued, both states offer administrative appeals that don’t require a lawyer. Preparation matters more than the paperwork.
In Oregon, you file a petition with the county’s Property Value Appeals Board, formerly the Board of Property Tax Appeals, between the time tax statements are mailed in late October and December 31.17Washington County, OR. Property Value Appeals Hearings happen early the following year.
In Washington, you appeal to the county Board of Equalization. The deadline is generally July 1 of the assessment year or 60 days after the date printed on your value change notice, whichever is later.18Washington State Board of Tax Appeals. Property Tax Appeal
In either state, the strongest appeals bring recent comparable sales of similar homes that sold for less than your assessed value. Similar means genuinely comparable: same neighborhood, similar size, age, and condition. A list of addresses and prices is not enough. You need to explain why each sale is comparable and how any differences support a lower value. Photographs of deferred maintenance, a contractor estimate for needed repairs, or a recent independent appraisal all strengthen the case.