Ohio Board of Tax Appeals Explained

You have 30 days from the date of the Board of Revision's decision to file a notice of appeal with the BTA. This is a strict deadline — once it passes, you cannot appeal that BOR decision. If you're unsure whether to appeal, request a free review immediately after receiving your BOR decision so there's time to evaluate your options. For the full BOR-to-BTA filing calendar, see our Ohio property tax complaint deadlines for 2026.

BTA cases typically take 1-2 years from filing to decision. The timeline depends on the complexity of the case, hearing scheduling, and the BTA's caseload. While this may seem long, a successful BTA decision can result in substantial refunds for every year the appeal covers — making the wait worthwhile for commercial property owners with significant overassessment. Be sure to review all property tax deadlines so you don't miss your filing window.

While not legally required, professional representation is strongly recommended for BTA proceedings. Unlike the BOR, the BTA follows formal hearing procedures — testimony is under oath, evidence rules apply, and opposing counsel from the county may cross-examine your witnesses. Most commercial property owners who succeed at the BTA have experienced representation. EPTA partners with Ohio-licensed counsel to handle BTA cases. Get a free review to discuss your case.

If the BTA rules against you, you can appeal the decision to the Ohio Supreme Court within 30 days — but only on questions of law, not factual disputes. This means the Supreme Court won't re-weigh your evidence; it will only review whether the BTA applied the law correctly. This is why building the strongest possible factual record at the BTA level is critical. Our guide to the property tax appeal process covers each stage in detail.

BOR hearings are relatively informal — they're conducted by county officials and the process varies by county. BTA hearings are more formal proceedings before an independent hearing examiner. Testimony is given under oath, evidence must meet admissibility standards, and both sides can cross-examine witnesses. The BTA also conducts a de novo review, meaning it evaluates the case from scratch rather than deferring to the BOR's findings. See our Ohio property tax appeals overview for the full picture.

From the county auditor's reassessment to a final written BTA decision, the Ohio post-audit appeals process typically runs two to four years. The BOR stage alone takes roughly three to six months after a March 31 filing, then the BTA docket adds another six to eighteen months before a merits hearing and one to two years before a written decision. Owners who anticipate a further appeal to the Ohio Supreme Court should plan for an additional year. For the broader picture across stages, see our property tax appeal process guide.

The BTA expects a complete evidentiary record supporting a specific opinion of value as of the tax lien date. That usually means an independent fee appraisal from a state-certified appraiser (MAI preferred for larger commercial assets), rent rolls and T-12 operating statements for the income approach, comparable sales within the lien-date window, a supported capitalization rate analysis, and sworn testimony from any witness whose opinions you want on the record. Properties with deferred maintenance or environmental issues should also include dated photos and expert reports. Our property tax appeal evidence guide breaks down exactly what to assemble, and our Ohio Board of Revision guide explains how to start building that record at the county level.

An individual owner can legally appear pro se at the BTA, but LLCs, corporations, partnerships, and most trusts cannot — in Ohio, those entities must be represented by licensed counsel at the state tribunal level. Even when self-representation is technically allowed, it is rarely a good idea: the BTA follows formal rules of evidence, opposing counsel from the county prosecutor's office will cross-examine you under oath, and a weak record almost always leads to the BOR value being affirmed. If you own your property through an entity, you should request a free review before your BTA deadline expires.

EPTA handles Ohio Board of Tax Appeals Representation on a pure contingency basis — if the appeal does not produce tax savings, there is no fee. That model covers the filing, the appraiser coordination, the hearing, and the post-hearing briefs, so commercial owners can pursue a state-level appeal without writing a retainer check. Because the fee is tied to actual savings, we only take cases where the value argument is credible and the over-assessment is material. The fastest way to find out whether your parcel qualifies is to submit a free review.