Oregon mails tax statements in October — and gives you until December 31 to petition your county's Property Value Appeals Board (the board formerly known as BOPTA). Under Measure 50 the math is quirky, so check first whether an appeal will actually cut your bill. Our free estimator does exactly that.
It shows two numbers that matter: Real Market Value (RMV) and Assessed Value (the lesser of RMV or your Measure 50 MAV). You can only appeal the RMV.
An RMV cut only lowers your bill if the new RMV lands BELOW your assessed value. Our estimator checks this before you spend an evening on comps.
File the petition with your county clerk — free, no lawyer needed. Attach comps from your county assessor's records (worksheet below).
PVAB hears petitions January through April 15. Disagree? Appeal to the Oregon Tax Court's Magistrate Division within 30 days — informal and homeowner-friendly.
Most Oregon homes are taxed on MAV, which sits well below market value — so a modest RMV reduction often changes nothing. Appeal when RMV is close to assessed value, when you're hit by exception value (new construction), or when the RMV is flat-out wrong. Run the estimator first.
Everything runs in your browser — we never see or store your property data.
Savings only accrue when your target RMV falls below the assessed value on your statement — enter your assessed value (not RMV) above so the math reflects Measure 50. Typical Oregon rates run $14–$20 per $1,000 of assessed value (1.4–2.0%); 1.60% is the default. Estimates only; not tax advice.
Enter recent sales of similar homes near the January 1 assessment date (county assessor portals like Multnomah's have sales search; portlandmaps.com covers Portland). The worksheet computes price per square foot and a suggested RMV.
| Address | Sale Date | Sale Price ($) | Sq Ft | $/Sq Ft |
|---|
| Item | Oregon Rule |
|---|---|
| Tax statements | Mailed by October 25 by your county |
| Petition deadline | December 31 — statewide, to your county's Property Value Appeals Board (via county clerk) |
| What's appealable | Real Market Value (RMV) only — MAV is a formula and can't be appealed directly |
| Hearings | January – April 15; informal, no lawyer required |
| Key law | Measure 50: assessed value = lesser of RMV or MAV (MAV +3%/yr) |
| Value date | January 1 of the assessment year — choose comps near it |
| Next level | Oregon Tax Court, Magistrate Division — within 30 days of the PVAB order |
| Records | County assessor portals (e.g. portlandmaps.com, county sales search tools) |