Ross County's Reappraisal Reset Every Acre's Market Value. The Farmland Tax Break Didn't Move With It.

What happens to a farm's tax bill when the county resets what every acre is worth, but the acre itself never changes?

That is not a hypothetical for anyone shopping acreage in Ross County this year. In 2025 the county completed a state-mandated mass reappraisal, and Auditor Jeff Lehner's office posted tentative 2026 values, covering tax year 2025, starting September 5, 2025. Property owners had a window that same month, the week of September 22, to sit down with the auditor's office and contest what they saw before the numbers went final. Those values are the ones now showing up on tax bills across the county. For most homeowners, that is the whole story: a new number, a new bill, done.

For anyone who owns or is buying land enrolled in Ohio's Current Agricultural Use Valuation program, it is not the whole story. CAUV lets qualifying farmland get taxed on what it produces rather than what it would sell for, and that gap between the two numbers is exactly what the state charges you for if you ever take the land out of agriculture. A reappraisal that resets market value without touching the CAUV side of the ledger does not just change what a farm owes today. It changes what converting any part of that farm will cost tomorrow.

What CAUV Actually Buys You

CAUV, authorized by the Ohio Constitution and written into state law, lets land devoted to commercial agriculture get valued by soil productivity instead of sale price. Qualifying tracts typically see their taxable value cut by somewhere between 30 and 80 percent compared to a standard assessment. Ten or more contiguous acres in active commercial use qualifies automatically. Smaller tracts qualify too, as long as they generate at least $2,500 a year in agricultural income.

That is the appeal for a buyer eyeing a working farm, a hay field, or a wooded parcel with pasture attached: the carrying cost on paper looks nothing like the market price you paid for it. What often gets missed is what the program does not cover.

The Homesite Was Never Included

Even on a fully enrolled tract, the ground under the house, the barn, and any other structures gets valued at full market rate no matter what the surrounding acreage is doing. CAUV applies to the working ground, not the yard. That distinction matters the moment you start planning where a second home, a garage, or a driveway extension might go on a property that is otherwise enrolled, because that new footprint is being carved out of land that currently enjoys the tax break, not added to ground that was already excluded.

The Reappraisal Moved One Side of the Ledger

Here is the mechanism that makes this year different from an ordinary year. When land is converted out of agricultural use, the auditor removes the converted portion from CAUV and charges recoupment, which is equal to the prior three years of tax savings on that specific ground. That savings figure is the difference between the parcel's market value and its CAUV value for each of those years. It becomes a lien on the land, attached as of January 1 of the year it is levied, and it stays attached until it is paid.

Ross County's 2025 reappraisal reset the market-value side of that equation for essentially every parcel in the county, based on three years of actual sales data. The CAUV side is calculated separately, using soil productivity tables and crop-price formulas set by the Ohio Department of Taxation on its own schedule. Ohio Farm Bureau has been direct about this in its own guidance to landowners: new development and market pressure move a parcel's market value, but they do not touch its CAUV value at all. Those are two different formulas, updated on two different clocks, and a reappraisal only turns one of them.

The practical effect for anyone converting enrolled ground in Ross County going forward: the gap between what your acre is now assessed at for market purposes and what it is assessed at for CAUV purposes is not the same gap it was before 2025. On most parcels, it is wider, because the reappraisal pulled market values up while the CAUV figure sat where the state's separate formula left it.

Why the 2026 Fix Doesn't Reach Ross Yet

There is a second layer here that cuts against the reader's first instinct, which is to assume the state is making CAUV more forgiving right now. It is, just not on Ross County's timeline. The Department of Taxation's 2026 update lowers CAUV values by roughly 5 percent on average and, for the first time, values qualifying permanent pastureland at the same minimum rate as woodland, a change Ohio Farm Bureau has pushed for years to win. That update applies to the group of counties going through reappraisal in 2026.

Ross County's mass reappraisal landed a year earlier, in 2025, which means the county's CAUV figures for this cycle were set under the older tables, before the pastureland change took effect. A buyer looking at a Ross County property with permanent pasture is not getting the benefit of that more favorable valuation this cycle. The next chance for that relief to reach Ross farmland arrives on the state's normal update schedule, not this year.

What This Actually Costs When You Convert

If you are the one planning to build on part of an enrolled tract, here is the order of operations that keeps the number from surprising you at closing or the year after:

1. Confirm which parcel number actually carries the CAUV enrollment. The county's parcel search tool shows this per tract, not per property listing.
2. Pull the specific CAUV value and current market value for that tract from the same parcel record. County averages do not tell you what your acre is worth.
3. Estimate the recoupment exposure by applying the local tax rate to the gap between those two figures for each of the past three years, on the portion you plan to convert, not the whole tract.
4. Put responsibility for that charge in writing in the purchase agreement. Ohio law lets a buyer and seller agree in advance on who covers recoupment tied to a planned conversion, and that agreement is the only thing that protects you from a dispute after the fact.
5. Remember the lien follows the land. It attaches to the converted acreage regardless of who owned it when the CAUV years being recouped actually occurred.

Questions Worth Asking Before You Write an Offer

• Is the entire tract enrolled in CAUV, or only a portion of it?
• Has the seller filed the required annual renewal every year, or could a recoupment notice already be pending independent of anything you plan to do?
• If you intend to build, how many acres does the actual site plan pull out of agricultural use?
• Will the seller agree, in the purchase contract, to cover recoupment tied to enrollment history that predates your ownership?
• Has this parcel's market value been through the county's informal review this cycle, or is the number on file still the auditor's first pass from September 2025?

FAQ

Does converting one homesite trigger recoupment on the whole farm? No. Conversions are handled tract by tract. Only the acreage that actually changes use loses CAUV status and generates a charge. The rest of an enrolled parcel keeps its agricultural valuation as long as it stays in qualifying use.

If I buy land that's already enrolled, do I inherit the recoupment risk? The lien follows the land, not the person who caused the conversion. Buy enrolled acreage, convert part of it later, and the charge attaches to your parcel regardless of who worked the ground before you. That is exactly why the responsibility needs to be spelled out in the purchase agreement before closing, not discovered afterward.

Does the county's 2025 reappraisal change my parcel's current CAUV value? The reappraisal reset market values, which is one side of the recoupment formula. Your parcel's CAUV value is set separately, on the state's own soil-based schedule, so the two numbers do not move together automatically. That mismatch is precisely what widens or narrows what you would owe if the land ever changes use.

Acreage in Ross County rarely comes with a tidy answer on questions like this, and the paperwork rewards buyers who ask before they sign rather than after. If you're evaluating a property with working ground attached, whether you're planning to farm it, hold it, or eventually build on part of it, Brandon Emmanuel can help you read the parcel record the way an auditor does before it becomes a surprise on next year's bill. Let's connect before the offer goes in.