Oregon Property Tax 2026: Measure 5, Measure 50, Senior Deferral and PVAB

Oregon's property tax is governed by two constitutional voter initiatives: Measure 5 (1990) caps total non-school property tax at 1 percent of real market value and school tax at 0.5 percent, and Measure 50 (1997) caps annual growth in the maximum assessed value at 3 percent. This 2026 guide explains how both work, the Senior Property Tax Deferral, and the renamed Property Value Appeals Board (formerly BOPTA).

1% + 0.5%

Measure 5 constitutionally limits total non-school property tax to $10 per $1,000 real market value and basic school property tax to $5 per $1,000 assessed value. Voter-approved bond levies are excluded from the caps.

3%

Measure 50 limits annual growth in Maximum Assessed Value (MAV) to 3%. Taxes are based on the lower of Real Market Value (RMV) or MAV. Started from a 1995-96 base of 90% for 1997-98.

How Oregon Property Tax Works

Oregon uses two values in the tax calculation:

The taxable value is the lower of RMV or MAV — known as Assessed Value (AV).

The tax calculation

Annual tax = Assessed Value × Local tax rate, subject to Measure 5 caps

Example: $500,000 Portland home. RMV = $500,000. MAV (after years of 3% growth from base) = $320,000. AV = $320,000 (the lower). Local rate approximately $19 per $1,000 = $320,000 × 0.019 = $6,080 annual tax. Measure 5 compliance check: $6,080 / $500,000 = 1.22% — within combined 1.5% cap (1% non-school + 0.5% school) assuming the school portion is under 0.5%.

Reassessment

Oregon assessors update RMV annually. MAV remains on its own 3% growth track regardless. When RMV falls below MAV (rare in a rising market), AV drops to RMV — providing automatic tax relief in declining markets.

Measure 5 and Measure 50 — Structural Rules

Measure 5 (1990)

Constitutional limit on total property tax extraction per parcel:

If the combined local rates would exceed these caps, the excess is compressed or eliminated — the local taxing districts share the reduction proportionally.

Measure 50 (1997)

Constitutional cap on Maximum Assessed Value growth at 3% per year. Original 1997-98 MAV was set at 90% of the 1995-96 RMV. Grows at 3% annually unless:

MAV effectively freezes long-term holders well below current market value. A home bought in 1997 may have RMV of $800,000 and MAV of $200,000 — taxes are calculated on $200,000.

What is NOT frozen

Senior and Disabled Property Tax Deferral

Oregon's Senior and Disabled Citizens' Deferral Program allows qualifying homeowners to defer payment of property tax. The state pays the county on the homeowner's behalf; a lien is placed on the property; repayment (with interest) occurs when the homeowner sells or no longer qualifies.

Eligibility for 2026

Interest

Deferred tax accrues at the state-certified rate (currently approximately 6% annual) compounded. The lien is repaid from sale proceeds or the estate when the homeowner no longer qualifies.

Application

File with the Oregon Department of Revenue by April 15 for the tax year.

Other Exemptions

Disabled Veteran Exemption

Veterans with 40% or greater service-connected disability (or surviving spouses) receive an annual exemption of approximately $30,000 off RMV (base amount, adjusted annually by the Oregon Department of Revenue).

Active-Duty Military Exemption

Oregon resident servicemembers on active duty outside Oregon receive a homestead tax deferral for the period of active service.

Historic Property Special Assessment

Qualifying historic properties may receive a 10-year special assessment freezing the value at a lower level during restoration periods.

Appealing Your Assessment

Oregon assessment appeals go through the renamed Property Value Appeals Board (formerly BOPTA).

Step 1: Talk to the assessor

After receiving your tax statement (typically in October), contact the county assessor. Many disputes resolve informally.

Step 2: Property Value Appeals Board (PVAB)

File formal appeal with the county PVAB between the date tax statements are mailed (October) and December 31. Filing is free. Present evidence such as comparable sales, an independent appraisal, or cost estimates for repairs.

Oregon's HB 2031 (effective January 1, 2024) renamed the Board of Property Tax Appeals (BOPTA) to Property Value Appeals Board (PVAB). The process is identical to BOPTA.

Step 3: Oregon Tax Court, Magistrate Division

PVAB decisions may be appealed to the Magistrate Division of the Oregon Tax Court within 30 days. Informal hearings; attorney not required.

Step 4: Oregon Tax Court, Regular Division

Further appeal to the Regular Division of the Oregon Tax Court. From there, appeals go to the Oregon Supreme Court.

Payment Schedule

Oregon property tax for the fiscal year July 1 - June 30 is billed in October. Payment options:

Delinquent tax accrues 16% annual interest. Extended delinquency can lead to foreclosure by the county.

Frequently Asked Questions

What is Oregon's property tax rate in 2026?

Oregon has no single statewide rate. Under Measure 5, total non-school property tax is capped at 1% of Real Market Value and school tax at 0.5% of Assessed Value. Typical total effective rate ranges from 0.85% to 1.4% of market value depending on county and voter-approved bonds. Portland-area counties trend higher, rural counties lower.

What is Measure 50 in Oregon?

A 1997 constitutional amendment that caps annual growth in Maximum Assessed Value (MAV) at 3% per year. The original 1997-98 MAV was set at 90% of 1995-96 Real Market Value. MAV grows at 3% annually regardless of market performance, except when new construction or major improvements reset the MAV to market levels.

When is the Oregon property tax appeal deadline?

File with the Property Value Appeals Board (PVAB — formerly BOPTA, renamed by HB 2031 in 2024) between the date your tax statement is mailed (typically October) and December 31. If dissatisfied, appeal to the Magistrate Division of the Oregon Tax Court within 30 days of PVAB decision.

How does Oregon's senior property tax deferral work?

Qualifying seniors (age 62+) and disabled homeowners with household income up to approximately $54,500 can defer paying property tax. The state pays the county on the homeowner's behalf, and a lien is placed on the property at approximately 6% annual interest. Repaid when the property is sold or the homeowner no longer qualifies. File with the Oregon Department of Revenue by April 15.

What is BOPTA in Oregon?

The Board of Property Tax Appeals — Oregon's primary forum for property tax assessment appeals. Renamed Property Value Appeals Board (PVAB) effective January 1, 2024 under HB 2031. The process, deadlines, and procedures are identical to the old BOPTA name.

Your County's Effective Property Tax Rate

See 2026 effective rate, median tax, and appeal deadline for every Oregon county.

Browse Oregon Counties →
Sources & References

Oregon Department of Revenue — Property Tax · Oregon DOR — Brief History of Oregon Property Taxation · Clackamas County — Measures 5 and 50 · Oregon Tax Court · Columbia County — Property Value Appeals Board (formerly BOPTA) · Oregon Revised Statutes Chapter 308 (Assessment). Rates, exemption amounts and filing deadlines cited are based on 2025-2026 legislative sessions and official state/county publications verified 2026-04-21; verify with your assessor before filing. This article is for informational purposes and is not tax or legal advice.