Property Tax Ohio: County Ratios, Effective Mills, and the New Rollback Rules

A typical Ohio owner-occupant pays $2,822 a year on a home worth $214,800, or 1.31 percent of value, according to the Census Bureau’s 2024 five year survey. Across the 88 counties that ratio stretches from 0.72 percent in Noble County, south of Cambridge, to 2.00 percent in Cuyahoga, home to Cleveland. Pick a county below and this Ohio property tax calculator scales your home’s worth by that county’s bill to value ratio from the same survey, then shows the answer beside what neighbors typically pay. Enter appraised (market) value, the figure your county auditor lists first, not the 35 percent assessed value printed lower on the statement.

Why Voted Levies Do Not Rise With Your Value: HB 920 Reduction Factors

Ohio’s quirk is that a levy approved by voters is really a promise about dollars, not mills. Under the reduction factor system adopted in 1976 through House Bill 920 and written into Article XII, Section 2a of the state constitution, when a reappraisal pushes values up, the county auditor scales voted millage down so each levy collects about what it did the year before. Only new construction adds revenue. Statements therefore show a full voted rate and a lower effective rate, the one actually charged.

Two kinds escape. Inside millage, the unvoted levies that the constitution caps at 10 mills in total, is split among the county, township or city, and school district and grows with value. Fixed sum levies, such as bond issues, are set as a dollar amount. So when your home’s value jumps, your bill usually climbs by far less, unless your school district sits on the 20-mill floor.

From Appraised Value to a Bill: 35 Percent and Effective Mills

The county auditor is the assessor. Every parcel is appraised at true market value, and assessed value is 35 percent of that. A mill is $1 per $1,000 of assessed value, so on a $200,000 house the assessed value is $70,000 and each effective mill costs $70 a year. Your total stacks the county, township or municipality, school district, joint vocational school, library, and any park, health, or developmental disabilities levies approved where you live. From that gross figure come the rollbacks, any homestead exemption, and, starting with tax year 2025, the new inflation cap credit.

The 20-Mill Floor and the New Inflation Cap Credit

Reduction factors cannot push a school district’s operating millage below 20 effective mills (2 mills for a joint vocational district). Once a district reaches that floor, every dollar of reappraisal growth flows straight into school taxes, which is why so many Ohio homeowners saw large jumps after the 2023 and 2024 reappraisals. House Bill 186, signed December 19, 2025 and effective March 20, 2026, limits that growth to the inflation rate over the prior three years, measured by the GDP deflator. Owners in floor districts get the difference back as a credit itemized on their statement as the “Inflation Cap Credit,” recalculated at every reappraisal or triennial update. For tax year 2025 the whole credit lands on the second half bill, since first half bills had already gone out when the law took effect.

County Ratios: Noble at 0.72% to Cuyahoga at 2.00%

Every county above the statewide 1.31 percent is metropolitan or suburban: Cuyahoga at 2.00, Montgomery (Dayton) at 1.73, Lucas (Toledo) at 1.69, Lake at 1.62, Greene at 1.61, Delaware at 1.60, Summit (Akron) at 1.53, Hamilton (Cincinnati) at 1.51, and Franklin (Columbus) at 1.47. Wood, Lorain, and Geauga round out the twelve counties above the state figure, and Trumbull sits exactly on it. The low end is Appalachian, in the south and southeast: Noble at 0.72, Brown and Monroe at 0.82, Adams and Pike at 0.83, and Lawrence and Morgan at 0.84. The middle county lands at 1.05 percent, well below the statewide number, because the big metros hold so many homeowners.

Dollar bills follow home prices. Delaware County, north of Columbus, has the highest median payment, $7,132 on a $445,500 home, and Geauga follows at $4,564. Monroe, on the Ohio River, has the smallest, $1,176, and Meigs has the lowest median value, $119,300.

Two runs through the calculator:

• Franklin County, $300,000 home: 1.47 percent gives $4,410 a year, or $367.50 a month, $166 above the county’s $4,244 median bill.
• Cuyahoga County, $200,000 home: 2.00 percent gives $4,000 a year, or $333.33 a month, $90 more than the $3,910 median.

The same $250,000 house runs $1,800 in Noble and $5,000 in Cuyahoga.

Rollbacks Shift Toward Owner-Occupied Homes, and the $29,700 Homestead Exemption

For decades Ohio homes received a 10 percent nonbusiness rollback plus a 2.5 percent owner-occupancy rollback, both reimbursed by the state and both limited to levies approved before the November 2013 election. HB 186 rewrites that split. For tax year 2026, the bills paid in 2027, the nonbusiness credit on residential property drops to 7.5 percent while the owner-occupancy credit rises to 5.70 percent, a combined 13.2 percent for a home you live in. The schedule continues to 5 and 8.92 percent in 2027, 2.5 and 12.15 percent in 2028, and zero and 15.38 percent from 2029. Rentals and second homes lose the rollback entirely by 2029; farmland keeps the full 10 percent. If you bought or moved, file the owner-occupancy application with your county auditor by December 31 of the tax year.

The homestead exemption shields part of a home’s market value from tax: $29,000 for tax year 2025 and $29,700 for tax year 2026, now indexed to inflation each year. It is available to owners 65 or older, permanently and totally disabled owners, and certain surviving spouses whose Ohio modified adjusted gross income is $41,000 or less for tax year 2026 ($40,000 for 2025). Veterans whose service-connected disability is rated total, their surviving spouses, and surviving spouses of public service officers killed in the line of duty receive double, $59,400 for 2026, with no income test. Owners who held the exemption in 2013, before means testing returned, keep it regardless of income. Apply on form DTE 105A (DTE 105I for veterans) with the county auditor by December 31. House Bill 96 of 2025 also lets county commissioners adopt a local option exemption of the same size, which the state does not reimburse, so ask whether your county has.

Sexennial Reappraisal, Triennial Updates, and the Board of Revision

Each auditor must view and reappraise every parcel at least once every six years, with a statistical update in the third year between. If you think your value is wrong, file form DTE 1 with the county board of revision through the auditor by March 31 of the following year, or by the close of first half collection if that is later. You generally get one complaint per parcel in each three year interim period, unless something new happens, such as an arm’s length sale or damage. The board’s decision can be appealed to the Ohio Board of Tax Appeals within 30 days after notice is mailed.

Two Halves, a 10 Percent Penalty, and What Follows Nonpayment

Ohio taxes are paid a year in arrears: the tax year 2026 bill arrives in 2027. The Revised Code sets the halves at December 31 and June 20, but most treasurers take the extensions the law allows, so first half due dates commonly fall in late January or February and second half dates in June or July. A late half draws a 10 percent penalty, cut to 5 percent if the full amount is paid within ten days. Taxes still unpaid after the second half become delinquent and pick up interest at a rate the Tax Commissioner sets each October. Delinquent parcels can then be sold as tax certificates or foreclosed by the county prosecutor; treasurers offer delinquent payment contracts.

What 2027 Brings and When These Ratios Refresh

The Ax Ohio Tax campaign to abolish property taxes by constitutional amendment did not file signatures by the July 1, 2026 deadline and will not appear on the November 2026 ballot; organizers say they are aiming for November 2027. Meanwhile, the 2027 rollback step (5 and 8.92 percent), the next homestead indexing, and inflation cap credits in any county reappraised in 2026 will shape the bills you receive. Our ratios come from the ACS 2024 five year file, covering 2020 through 2024, so they predate every HB 186 change, and they will update when the Census Bureau publishes its next five year release in December. For a parcel level figure, many county auditors post a tax estimator on their websites.

Sources: the Census Bureau’s American Community Survey, 2024 five year release (table B25103 for taxes paid, B25077 for owner home values); Ohio Legislative Service Commission, final analysis of H.B. 186 (January 16, 2026); Ohio Department of Taxation, real property tax and homestead exemption FAQs; Ohio Revised Code 5713.01, 5715.19, 5717.01, 323.12, 323.121, 323.153, and 323.17; Statehouse News Bureau and Ohio Capital Journal (June 2026). Value, rollback, and exemption questions go to your county auditor; payment questions go to your county treasurer.