Property tax in Warren County, Ohio
In Warren County, the property tax bill comes from the Warren County Treasurer. Every due date for the Tax Year 2025 bill has passed, and the county had not posted the next cycle's dates when we checked. You can look up and pay the bill on the county's own payment page. Taken from Warren County's own pages, checked September 23, 2026.
The median property tax bill in Warren County, Ohio is $4,199 a year, which is about 1.2% of the county's median home value of $349,400. That effective rate is higher than the typical Ohio county (1.05%) and higher than the national median (0.81%). These are American Community Survey 5-year estimates (2024); your own bill depends on your home's assessed value and any exemptions.
Who sends the property tax bill in Warren County, and how do you pay it?
The bill comes from the Warren County Treasurer. The value it is based on is set by a separate office, the Warren County Auditor, which is who to ask if the value looks wrong. For how to look up and pay the bill, go to the county's own payment information.
The county auditor sets the value and the county treasurer sends the bill; there are two halves a year, billed a year in arrears, so 2025 taxes were due in 2026. Due dates for 2026 taxes, payable in 2027, had not been posted when this was checked. The Board of Revision is made up of the County Auditor, the County Treasurer and the President of the County Commissioners, and it rules on the property's value, not the tax amount. The treasurer warns that mail dropped at a local post office may not be postmarked for several days, so mail early. If a lender pays from escrow, the treasurer suggests confirming with the lender that it will pay.
When are property taxes due in Warren County?
Every due date for the Tax Year 2025 (payable 2026) bill has passed, and Warren County had not posted the next cycle's dates when we checked on September 23, 2026. If that bill is still unpaid, the late-payment rules below apply to it. Counties usually repeat the schedule, but confirm the new dates on your next bill. For the Tax Year 2025 (payable 2026) bill, Warren County splits the bill into 2 payments, the first due February 25, 2026 and the last August 12, 2026. Ohio law adds a 10% penalty to any half left unpaid after its due date, cut to 5% if the full amount due is paid within 10 days after the due date. Taxes left unpaid past the second-half due date become delinquent and also accrue interest, which Ohio law charges on the first day of the month after the second-half due date and again on December 1.
| Payment | Due | Note |
|---|---|---|
| First half | February 25, 2026 (passed) | |
| Second half | August 12, 2026 (passed) | Extended to August 12 with the Ohio Tax Commissioner's approval because second-half bills were delayed by the new Inflation Cap Credit (House Bill 186). |
From Warren County's published schedule, checked September 23, 2026. If a date falls on a weekend or holiday, the county's own rules on the next business day apply.
Estimate the property tax on a home in Warren County
Enter a home's market value for a ballpark at Warren County's average effective rate of 1.2% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.
Estimated property tax: $4,193 / year
Property tax in Warren County at a glance
| Measure | Value |
|---|---|
| Median annual property tax | $4,199 |
| Median home value | $349,400 |
| Effective tax rate | 1.2% |
| Typical Ohio county rate | 1.05% |
| National median county rate | 0.81% |
Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates.
How does Warren County compare in Ohio?
Among Ohio's 88 counties, Warren County has the 25th highest effective property-tax rate: 24 rank higher and 63 rank lower. That is on the higher side for Ohio. Nationally, it ranks 736th of 3135 US counties by effective rate. See every Ohio county ranked.
How much do homeowners in Warren County actually pay?
The median is only the middle bill. Across Warren County's 73,084 owner-occupied homes, 67.7% pay $3,000 or more a year in property tax, 82.3% pay at least $2,000, and 3.3% pay under $800. Another 2.3% report paying no property tax at all, which usually means an exemption covers the whole bill.
| Annual bill | Homes | Share |
|---|---|---|
| Under $800 | 2,423 | 3.3% |
| $800 to $1,499 | 4,184 | 5.7% |
| $1,500 to $1,999 | 4,610 | 6.3% |
| $2,000 to $2,999 | 10,705 | 14.6% |
| $3,000 or more | 49,502 | 67.7% |
| No property tax paid | 1,660 | 2.3% |
Owners with a mortgage pay a median of $4,350 and owners without one pay $3,826. Owners who have paid off a home have usually held it longer, and in states that cap how fast an existing owner's assessment can rise, long-held homes carry lower assessed values. Census table B25103.
How does the Warren County property tax bill compare with local incomes?
The median property tax bill of $4,199 is about 3.4% of the median income of Warren County homeowner households, $124,388 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 79.4% of Warren County's occupied homes are lived in by their owners; renters pay property tax too, just folded into rent.
Have property taxes gone up in Warren County?
Yes. The median bill went from $3,407 in 2015-2019 to $4,199 in 2020-2024, a 23.2% rise. Over the same span the median home value moved 57%, from $222,500 to $349,400. Bills rose more slowly than values, which is what assessment caps and falling millage rates do: the county is taxing a smaller share of each home's worth.
Two Census ACS 5-year periods with no survey years in common, in each period's own dollars. A change counts only if it exceeds the combined 90% margin of error.
Property tax in counties next to Warren County
Warren County borders 6 counties.
| County | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Montgomery County, OH | 1.73% | $3,127 | $180,900 |
| Greene County, OH | 1.61% | $4,071 | $252,200 |
| Hamilton County, OH | 1.51% | $3,652 | $241,900 |
| Clermont County, OH | 1.25% | $3,333 | $266,200 |
| Butler County, OH | 1.22% | $3,141 | $258,500 |
| Warren County, OH (this county) | 1.2% | $4,199 | $349,400 |
| Clinton County, OH | 0.93% | $1,962 | $211,900 |
How is a home assessed in Warren County?
Ohio assesses homes at 35% of market value in every county, Warren County included. How Ohio assesses and reappraises homes.
Is there a homestead exemption in Warren County?
No. Ohio has no universal homestead exemption; relief is targeted to seniors, the disabled and disabled veterans. That is the Ohio rule, and it applies in Warren County. Ohio's exemptions and relief programs in full.
Warren County does not add relief programs of its own beyond the Ohio ones (checked September 23, 2026).
How to appeal your Warren County property assessment
In Warren County you appeal to the Warren County Board of Revision. The deadline: File a complaint against the value (form DTE 1, signed in front of a notary) with the County Auditor between January 1 and March 31 of the year after the tax year you are disputing. State law allows only one complaint per parcel in each three-year valuation period unless something changed, such as a sale or damage. A Board of Revision decision can be appealed to the Ohio Board of Tax Appeals, or instead to the county Court of Common Pleas, within 30 days after the decision notice is mailed. How to file. Checked September 23, 2026 against the official appeal rules.
How Ohio's appeal process works, including the next level if the first one turns you down.
Ohio rules from primary state sources, reviewed September 7, 2026; sources on the Ohio page.
Work out your own numbers
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How much house can I afford?
Your income, debts and down payment against the 28/36 rule lenders actually use, with Warren County's tax rate to hand.
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Mortgage calculator
Monthly payment with principal, interest, tax and insurance, plus what an extra payment saves you.
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Ohio income tax
Brackets, standard deduction and what Ohio actually taxes.
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Sales tax in Warren County
The other local tax: combined state and local rate for this county.
Sources
- Median real estate taxes paid and median home value for Warren County, Ohio: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103, B25077, B25102, B25119 and B25003; the five-year comparison uses the 2015-2019 estimates. Neighboring counties: Census county adjacency file.