Property Taxes at Florence: How Oregon's Measure 50 Actually Works

Measure 50: Assessed Value, Not Market Value, Drives the Bill

Oregon's Measure 50, approved by voters in 1997, replaced a straightforward market-value property tax system with one built around a separately tracked figure called Maximum Assessed Value (MAV). By law, a property's MAV can grow no more than 3% in any given year, regardless of whether the property's actual market value rose 15% or fell 5% that year. The practical effect compounds over time: an owner who has held a Florence property for a decade or more is very likely paying tax on an assessed value meaningfully below what the home would actually sell for today, because market appreciation in strong years routinely outpaces the 3% assessed-value cap.

For a buyer, this cuts the other way at the moment of purchase. Oregon law resets a property's assessed value basis in specific circumstances tied to new construction, subdivision, and rezoning, but a straightforward resale purchase does not automatically reset the MAV to the new sale price -- the existing MAV trajectory generally continues, capped at 3% annual growth from wherever it already stood. That means two nearly identical homes on the same Florence street, purchased at similar prices in different years, can carry meaningfully different tax bills depending purely on how long the prior owner held each one and how the assessed value climbed under the cap during that ownership period.

Permanent Rates Are Frozen at 1997 Levels

The second structural piece of Measure 50 is that it gave every taxing district that existed in Oregon at the time -- cities, counties, school districts, community colleges, fire districts, and others -- a permanent operating tax rate fixed at its 1997 level. Crucially, that permanent rate cannot be raised by the district itself or by a vote of that district's own residents; it is a structural ceiling written into the state's constitutional framework. Districts can still add local-option levies (which require voter approval and typically expire after a set number of years) and general obligation bonds (also voter-approved, tied to specific capital projects) on top of the frozen permanent rate, which is why a specific parcel's total combined rate is higher than any single district's permanent rate alone.

The City of Florence's own permanent operating rate is $2.8610 per $1,000 of assessed value. On top of that, the city has carried a general obligation bond levy of $0.1496 per $1,000 (the figure available from this research, dated to FY2021), bringing the city-only portion of a Florence property tax bill to roughly $3.01 per $1,000 of assessed value. That is only the city layer -- a full Florence property tax bill also includes Lane County's own permanent rate, the Siuslaw School District's permanent rate, Lane Community College, Lane Education Service District, and Florence's fire protection district, none of which this page independently summed into one confirmed combined figure.

Two Aggregator Figures That Disagree With Each Other

This is worth stating plainly rather than smoothing over: one property-tax data aggregator (Ownwell) cites Florence's own median effective property tax rate at 0.67% of home value -- notably below the national median of roughly 1.02% -- while the same source separately states the Lane County-wide average effective rate at approximately 1.03%. Those two figures come from the same aggregator and disagree with each other by a meaningful margin (0.67% versus 1.03% is nearly a 54% relative gap), and this page does not pick one as more authoritative than the other.

As a purely illustrative exercise -- not a real tax bill for any specific property -- applying those two rates to Florence's $425,000 city-limits 2025 median sold price produces a range from roughly $2,848 a year at the lower rate to roughly $4,378 a year at the higher one. The responsible path for an actual buyer is to pull the real Tax Code Area Report for the specific parcel directly from Lane County Assessment and Taxation, which will show the exact combined rate that applies to that address given every taxing district layered on it, rather than relying on either aggregator estimate.

Why a Seller's Current Tax Bill Isn't a Reliable Predictor

Because Measure 50's assessed-value cap runs independently of sale price and ownership length, a Florence listing's stated current property tax figure often significantly understates what a new buyer might actually owe -- particularly for a long-held property whose assessed value has been compounding at 3% a year for a decade or two while the actual market value rose faster. A buyer who budgets around a seller's current tax bill, rather than confirming how the assessed value would carry forward or reset under their own purchase, risks a real, avoidable surprise on the first post-purchase tax statement.

Ask the Lane County Assessor's office directly how a specific transaction would affect the property's assessed value going forward, rather than assuming the number on a current listing sheet is a reliable forecast of a new owner's bill.

New Construction and Additions Reset the Calculation

Measure 50 does provide for a partial reset when new construction, a major addition, rezoning, or subdivision changes a property in ways the statute defines as "exception value" -- meaning a substantial renovation or a new structure on a Florence lot can add assessed value outside the normal 3% annual cap for the portion attributable to that new construction. This page did not independently confirm the exact current formula or valuation methodology Lane County applies to a specific renovation or rebuild project -- a buyer planning significant construction on a Florence property should ask the County Assessor's office directly how that specific project would affect the assessed value, rather than assuming the 3% cap protects the full post-renovation value.

No Homestead Exemption, But Oregon Has Other Relief Programs

Oregon does not have a general homestead exemption comparable to some other states' systems. It does offer other property tax relief and deferral programs at the state level, including options aimed at qualifying senior and disabled homeowners, though this page did not independently verify current income thresholds, application deadlines, or eligibility criteria for any specific program at a level this research is comfortable stating as current fact. Given Florence's genuinely older population -- 44.0% of residents 65 or older per the 2020 Census -- this is a real question worth asking directly rather than assuming or ruling out eligibility. Ask the Lane County Assessor's office or the Oregon Department of Revenue directly about current senior or disabled property tax deferral program eligibility before assuming a figure.

What a Buyer Should Actually Do

Before making an offer on a Florence property, request the parcel's current assessed value, its full combined tax rate across every overlapping taxing district, and its most recent actual tax bill directly from Lane County Assessment and Taxation -- not from a real estate listing site, which may show a stale figure that doesn't reflect either the current Tax Code Area rate or how the assessed value would carry forward under new ownership. Ask specifically whether any active local-option levy or bond is currently layered on top of the district's permanent rate, since those can expire or renew on their own separate timelines outside the main Measure 50 structure. This page does not state a property tax proration formula for a mid-year Oregon closing -- confirm that mechanic with a local real estate agent or closing attorney as part of the transaction itself.