The Ohio Property Tax Complaint Process, Step by Step

The complaint must be filed with the county auditor between January 1 and March 31 of the tax year following the valuation. The deadline is jurisdictional — the BOR has no authority to hear a late complaint regardless of how strong the evidence is. Most counties require physical receipt by close of business on March 31, so relying on a last-day postmark is risky; file at least a week early in counties like Hamilton County where late-March volume is high. If you miss the window, your next filing opportunity opens January 1 of the following year and you lose the current tax year of potential savings entirely. Check every deadline in our property tax deadlines guide so the calendar never costs you a year.

Standing is narrow and specific. The property owner can file, as can the owner's spouse, a tenant authorized in writing to pay the real estate tax under the lease, a corporate officer with documented authority, a member or manager of an LLC where the operating agreement permits, an Ohio-licensed attorney representing the owner, and a taxing authority such as a board of education. The signer requirement is one of the most common bases for jurisdictional dismissal — corporate owners who sign through a property manager or junior bookkeeper, or LLCs that sign through someone without operating-agreement authority, routinely have otherwise meritorious complaints thrown out. For entity-owned properties, engaging counsel before the filing window opens is the safest path.

At a minimum, an independent fee appraisal prepared as of the tax lien date, three to five comparable sales adjusted for market and property differences, a trailing twelve-month operating statement and rent roll for any income-producing property, a supported capitalization rate, dated photographs of any deferred maintenance or functional obsolescence, and copies of any environmental or engineering reports that affect value. The hearing itself runs only 15 to 30 minutes, so structure the presentation around a single specific opinion of value, not a general critique of the assessor. Bring the appraiser whenever practical — live testimony from the person who built the valuation carries materially more weight than the report standing alone. Our appeal evidence guide walks through each category in detail.

Under ORC 5715.19, when an owner files a DTE Form 1, the local school district receives notice and has 30 days to file a DTE Form 2 counter-complaint arguing the assessment is too low — effectively asking the BOR to raise the value rather than lower it. A counter-complaint converts your case into a contested two-party hearing, and the school district's counsel will cross-examine your appraiser and put on their own valuation evidence. The response is to tighten the record: confirm the appraiser is hearing-ready, prepare for cross on every comparable, and consider whether a stipulated value short of the school district's number can be negotiated before the hearing. School districts are most active in commercial-heavy counties like Cuyahoga County, and a counter-complaint should be assumed possible on any large reduction request.

BOR decisions are typically issued within a few months of the hearing, although the exact timeline varies materially by county and by case volume. There are no filing fees and no court costs at the BOR — the complaint is an administrative filing, not a lawsuit. EPTA structures every engagement on contingency: no fee unless the complaint produces actual tax savings, which means commercial owners can pursue a full complaint-and-appeal sequence without writing a retainer check. If you want to see what the engagement model looks like before committing, our free review covers the parcel analysis and a no-obligation strategy conversation.

Either party has 30 days from the BOR decision to file a notice of appeal under ORC 5717.01. The choice is between the Ohio Board of Tax Appeals — a statewide tribunal with de novo review, where new evidence and updated appraisals are admissible — and the Court of Common Pleas in the county where the property sits, where review is on the record. The BTA is the more common path for commercial cases. Settlement opportunities exist at every stage: pre-hearing at the BOR, between the BOR decision and the BTA filing, and even on the eve of the BTA merits hearing. Many cases resolve through stipulated values rather than contested decisions, which is one of the underrated reasons disciplined counsel matters.