Ohio Property Tax Calculator
Estimate your Ohio property tax by county, compare rates across 8 major counties, and see how the automatic 10% rollback and homestead exemption can reduce your bill.
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How to Use This Calculator
Annual Tax tab
Enter your home value (current market value) and select your Ohio county. The calculator applies the county's effective tax rate to show your estimated annual and monthly property tax. Ohio assesses property at 35% of market value, then applies millage rates set by local taxing authorities.
County Comparison tab
View property tax rates across 8 major Ohio counties side by side. Each county shows the effective tax rate, median home value, and median annual tax. Use this to understand how location affects your tax burden when buying a home in Ohio.
Exemptions & Rollback tab
Model the impact of Ohio's two key property tax reductions. The 10% rollback is an automatic credit for owner-occupied homes. The homestead exemption reduces your taxable value by $26,200 if you are 65 or older (or permanently disabled). Enter your details to see how much you save.
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How Ohio Property Tax Really Works
Ohio assesses property at 35% of market value, then applies millage rates. The automatic 10% rollback means your bill is reduced before you even ask. Seniors 65 and older get a $26,200 homestead exemption. Between rollback and homestead, an elderly homeowner saves $500–$1,200 per year.
Unlike some states where the assessed value equals market value, Ohio's 35% assessment ratio means millage rates appear higher on paper. A 50-mill levy in Ohio is equivalent to roughly an 18-mill levy in a state that taxes at full market value. Always compare effective rates (tax as a percentage of market value) when looking across state lines.
The Formula
Ohio property tax is calculated in three steps:
2. Gross Tax = Assessed Value × Millage Rate ÷ 1,000
3. Net Tax = Gross Tax − 10% Rollback − Homestead (if eligible)
Where:
10% Rollback = Gross Tax × 0.10 (owner-occupied only)
Homestead = $26,200 × Effective Rate (age 65+ or disabled)
The effective tax rate varies by county, school district, and special levies. Rates shown in this calculator are county-wide averages. Your actual rate depends on your specific taxing jurisdiction within the county.
Example
Maria — Retired teacher in Columbus (Franklin County), age 68
Maria owns a home with a market value of $200,000 in Franklin County. She is 68 years old and lives in the home as her primary residence.
Step 1: Base tax calculation
Step 2: 10% rollback (owner-occupied)
Step 3: Homestead exemption (age 68)
Maria saves $748 per year ($62/month) through the combination of the 10% rollback and homestead exemption. Without these credits, her tax would be $3,240. With them, she pays $2,492.