Ohio Property Tax Appeal Guide

What This Data Tells Us About Appeals in Ohio

In Ohio, property tax appeals are filed with the County Board of Revision. The typical window is March 31 deadline, with the deadline most commonly falling in March. Filing fees reported for this state are $0, and Lincoln Institute research plus state-reported data suggest roughly 49% of appeals result in some reduction when supported by comparable sales or documented errors.

Ohio assesses at 35% of true value. Triennial reappraisals (every 3 years) trigger the best appeal opportunities. You cannot appeal without a valid change in circumstances outside reappraisal years. Appeals are driven by the gap between a parcel's assessed value and its actual market value — the calculator below turns that gap into an annualized dollar figure at your effective tax rate. The strongest evidence is three to five arms-length comparable sales from the past six to twelve months, plus documentation of any factual errors in the assessor's record (square footage, bedroom count, finished-basement status).

This guide is for informational purposes only and is not legal or tax advice. Deadlines, filing fees, success rates, and procedures vary by county within Ohio and can change year to year. Always verify the current rules with your local assessor's office — or a licensed attorney or tax professional — before filing. Source: Ohio Department of Taxation.