Generate an Ohio commercial property tax appeal demand letter. Challenge over-assessments under R.C. 5715.19 before the March 31 county board deadline.
Generate My Letter โ $19If you own commercial property in Ohio, the county auditor's valuation directly drives your annual tax bill. Ohio assesses real property at 35% of its true market value, and even small over-valuations can cost a business thousands of dollars each year. Ohio law gives commercial owners a clear, statutory right to challenge an assessment by filing a Complaint Against Valuation with the county Board of Revision. A well-drafted demand letter or pre-complaint communication to the auditor or BOR can frame your evidence, preserve appeal rights, and often resolve disputes before a formal hearing. Because Ohio's deadlines are strict and largely jurisdictional, knowing the specific procedure under R.C. 5715.19 is critical to protecting your refund rights.
Ohio property tax appeals are governed primarily by Ohio Revised Code Chapter 5715. Under R.C. 5715.19, any property owner, taxpayer, or affected party may file a Complaint Against the Valuation of Real Property (Form DTE 1) with the county Board of Revision (BOR). The complaint must be filed on or before March 31 of the year following the tax lien date being challenged. Missing this deadline is generally fatal โ the BOR loses jurisdiction to hear the case.
Ohio uses a sexennial reappraisal cycle with a triennial update under R.C. 5713.01, meaning auditors revalue property every three years and conduct a full physical reappraisal every six years. Between cycles, owners generally may file only one complaint per triennium under the 'one-complaint rule' in R.C. 5715.19(A)(2), with limited exceptions for substantial improvements, casualty loss, or changes in occupancy of at least 15%.
The BOR consists of the county auditor, treasurer, and a member of the board of county commissioners (or their designees). At the hearing, the property owner bears the burden of proving the auditor's value is incorrect and must present 'competent and probative' evidence of true value โ typically a recent arm's-length sale, a USPAP-compliant appraisal, or income capitalization data for income-producing commercial property.
After the BOR issues its decision, either party may appeal within 30 days to the Ohio Board of Tax Appeals (BTA) under R.C. 5717.01, or directly to the common pleas court under R.C. 5717.05. BTA decisions may then be appealed to the Ohio Supreme Court or a court of appeals under R.C. 5717.04. Recent amendments through H.B. 126 (effective 2022) significantly limited the ability of school boards and other taxing authorities to file or counter-file complaints against commercial valuations.
A demand letter in the Ohio commercial property tax context typically functions as a pre-complaint negotiation tool directed to the county auditor, or as a supporting cover document to your DTE 1 complaint filed with the Board of Revision. While Ohio does not require a pre-suit demand letter, a well-prepared letter can prompt informal valuation review, settlement discussions, or stipulated reductions before a formal BOR hearing.
An effective Ohio demand letter should: (1) identify the parcel by permit number and address; (2) state the auditor's current true value and assessed value (35% of true value); (3) propose your supportable opinion of true value with the methodology (sales comparison, income approach, or cost approach); (4) attach key evidence such as a recent purchase agreement, appraisal, rent rolls, operating statements, or comparable sales; and (5) cite R.C. 5715.19 and demand correction of the value before the March 31 filing deadline.
For income-producing commercial property โ office, retail, industrial, multifamily โ Ohio courts and the BTA give significant weight to the income approach when supported by actual rent and expense data. Including a capitalization analysis and market vacancy figures strengthens both informal negotiation and BOR presentation. The letter should also preserve your right to appeal by stating that, absent agreement, you will timely file a Complaint Against Valuation and pursue remedies through the BOR, BTA, and appellate courts. Send by certified mail, retain proof of delivery, and copy the county treasurer when payment-under-protest is anticipated.
There is no filing fee to file a DTE 1 Complaint Against Valuation with the county Board of Revision. Appeals to the Ohio Board of Tax Appeals under R.C. 5717.01 currently carry no filing fee, while common pleas appeals under R.C. 5717.05 require the standard civil filing fee, which varies by county. Hearings before the BOR are informal but recorded; representation by an Ohio-licensed attorney is required for corporate entities and LLCs presenting evidence beyond the owner's own testimony, per Ohio Supreme Court precedent (Sharon Village). Ohio's small claims limit of $6,000 does not apply to property tax valuation disputes, which are heard exclusively by the BOR, BTA, or common pleas court โ not municipal small claims.
Property tax in Ohio is governed by the Ohio Revised Code Title 57 (Taxation) โ real property valuation, complaints, and appeals (Chapters 5715, 5717, 5721) (Ohio Rev. Code ยงยง 5715.01, 5715.19, 5717.01; Ohio Admin. Code 5703-25-05). Assessment cycle: Six-year cycle: a full reappraisal every 6 years with a triennial update at the 3-year midpoint. Property is valued as of the tax lien date (January 1). Assessed value: 35% โ the taxable (assessed) value of each parcel is 35 percent of true value in money (ORC ยง 5715.01; OAC 5703-25-05).
County Board of Revision (first level) and the Ohio Board of Tax Appeals (state administrative appeal); county auditors administer valuations. The Ohio Department of Taxation oversees property tax administration statewide. The window to act is short โ march 31 of the following tax year to file a valuation complaint (DTE Form 1) with the county Board of Revision โ a firm statutory cutoff. To appeal a Board of Revision decision to the Board of Tax Appeals, a notice of appeal must be filed within 30 days after the BOR's decision is mailed (ORC 5717.01).
A recent change to watch: As of 2025-2026, House Bill 493 proposes ending the sale of delinquent tax liens to third parties, and the Ohio Senate has advanced a Homestead Exemption expansion. (Reform proposals โ not yet enacted as of 2026-07-22.).
Evidence that works: Recent sale price of the subject property, comparable sales, independent appraisals, income/expense data for income-producing property, and photographs of condition/defects.
Next-level appeal: Ohio Board of Tax Appeals (BTA) under ORC 5717.01, appealed within 30 days of the BOR decision mailing. Further review may be taken to the Court of Appeals / Ohio Supreme Court.
Appeal deadline: March 31 of the following tax year to file a valuation complaint (DTE Form 1) with the county Board of Revision โ a firm statutory cutoff. To appeal a Board of Revision decision to the Board of Tax Appeals, a notice of appeal must be filed within 30 days after the BOR's decision is mailed (ORC 5717.01).
First-level appeal: County Board of Revision (BOR) โ file a DTE Form 1 complaint against valuation. The BOR is composed of the county auditor, county treasurer, and a county commissioner. An informal review with the County Auditor is often available first.
Grounds you can raise: The appraised/true (market) value assigned by the county auditor is incorrect (too high or too low). You cannot challenge the 35% assessment ratio itself โ only the underlying true value.
How your value is assessed: 35% โ the taxable (assessed) value of each parcel is 35 percent of true value in money (ORC ยง 5715.01; OAC 5703-25-05).
Exemptions to claim: Homestead Exemption for seniors (65+) and permanently disabled homeowners: exempts the first $26,200 of home value (income-tested; OAGI $38,600 or less for first-time qualifiers in 2024). Enhanced Homestead for disabled veterans (100% service-connected): exempts the first $52,300 of value. Surviving-spouse exemption for spouses of public safety personnel killed in the line of duty.
The hearing: Administrative hearing before the county Board of Revision where the owner and auditor present evidence; the BOR issues a written decision. BTA appeals are heard de novo.
First, county Board of Revision (BOR) โ file a DTE Form 1 complaint against valuation. The BOR is composed of the county auditor, county treasurer, and a county commissioner. An informal review with the County Auditor is often available first.
If that fails, ohio Board of Tax Appeals (BTA) under ORC 5717.01, appealed within 30 days of the BOR decision mailing. Further review may be taken to the Court of Appeals / Ohio Supreme Court.
Mind the deadline: march 31 of the following tax year to file a valuation complaint (DTE Form 1) with the county Board of Revision โ a firm statutory cutoff. To appeal a Board of Revision decision to the Board of Tax Appeals, a notice of appeal must be filed within 30 days after the BOR's decision is mailed (ORC 5717.01).
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