JULIE A. ADKINS
Seneca County Auditor | Seneca County, Ohio
Official Website for the Seneca County Auditor's Office

Welcome to the Seneca County Auditor's Website!

Use the search bar, advanced search, or map to look up any property in the county to view its tax appraisal and payment history.

Forms, information pages, sales reports and the conveyance calculator are available on the links at the top right hand corner of the page.

The Tax Estimator will calculate your annual property tax amounts based on current tax rates and a property valuation you specify. Click HERE to get started!

2026 #1 Dog License Contest

The 8th annual dog licensing contest is open to students residing in Seneca County in grades Kindergarten through grade 3. The deadline to submit entries is Friday, November 21. If you would like to enter, please click here for the entry form. We look forward to seeing all of the entries!
Address
109 S. Washington St Suite 2206 Tiffin, OH 44883
Hours
Mon-Fri, 8:30AM-4:30PM
Population
55,069
Parcels
35,539
Updates

Veterans Exemption

With passage of House Bill 59, the State Biennium Budget Bill (ORC 5709.17), a tax exemption was created for real property held or occupied by veterans or fraternal organizations. Read more about the new Veterans' Exemption.

Dog Tags

Got Tags? Click HERE to register.

Congratulations to Olivia and her dog, Max, winners of the 2025 #1 Seneca County dog license!