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Where to Get Answers

The valuation placed on your property is determined by the Union County Auditor as required by law (ORC 5713.01).  The Auditor calculates tax rates based on public votes on tax levies and inside millage.  The Treasurer's Office only collects taxes and does not determine property values. 

Valuation InformationCounty Auditor - 937-645-3003
Payment InformationCounty Treasurer - 937-645-3035
Missing/Lost Tax BillsCounty Treasurer - 937-645-3035
Special AssessmentsCounty Auditor - 937-645-3003
Homestead ExemptionCounty Auditor - 937-645-3003