Ohio Payroll Taxes and Withholding Guide (2026)

What Makes Ohio Payroll Different

Federal payroll tax is the same in every state. What changes from one state to the next is the second layer: state income tax withholding, employer unemployment taxes, and any local wage taxes. Ohio is distinctive because it has two local income tax systems, not one. On top of the state income tax, most Ohio cities levy their own municipal income tax on wages, and many school districts levy an income tax on their residents. Both are separate from the state tax and from each other.

That layered structure is the whole story of an Ohio paycheck. The state income tax is low and getting lower as it phases toward a flat 2.75%, but the city income tax that most Ohio workers pay closes much of the gap, and at moderate incomes the city line can actually exceed the state line. The federal baseline behind all of this is explained in the how payroll taxes work guide.

Employee Withholding Overview in Ohio

An Ohio employee generally sees more lines on a pay stub than a worker in a flat-tax, no-local-tax state. The deductions fall into three groups: federal taxes, Ohio state income tax, and local income tax (city and, for some residents, school district). There is no employee unemployment line.

The federal lines work identically to any other state. For Social Security, the 2026 wage base is $184,500, after which Social Security stops for the year. Medicare has no cap. What is unique to Ohio is the double local layer: a city income tax that most workers pay, and a residence-based school district income tax that some do.

How Is Ohio State Income Tax Withheld?

Ohio individual income tax is graduated on the annual return but is withheld using the Department of Taxation percentage method. For each pay period, the employer subtracts a personal-exemption amount for each exemption on Form IT-4 (worth $650 per year, about $25.00 per biweekly period), then applies the withholding bands for that pay frequency. Under the tables effective October 1, 2025, the bands are 1.775%, 2.990%, and 3.640%.

The withholding bands are lower than the annual-return brackets because they already blend in the House Bill 96 phase-down. The federal Form W-4 sets federal withholding, covered in the W-4 withholding explained guide, while Form IT-4 sets the Ohio exemption count. Because withholding is only an estimate of the annual tax, the exact Ohio liability is settled on the IT-1040 return.

Ohio Withholding Exemptions (Form IT-4)

Form IT-4 is Ohio's Employee's Withholding Exemption Certificate, the equivalent of the federal W-4 for the state line. It is the one lever an Ohio employee has over state withholding.

How Exemptions Work

You claim one exemption for yourself, one for a spouse if applicable, and one for each dependent. Each exemption reduces Ohio taxable wages for withholding by $650 per year, which the employer spreads across your pay periods (about $25.00 on a biweekly period) before applying the withholding bands.

Filing the IT-4

If you do not file an IT-4, the employer must withhold as if you claimed zero exemptions, which withholds more. Claiming more exemptions lowers the Ohio state line each pay period; claiming fewer raises it. The IT-4 also captures your school district of residence, which the employer uses to determine any school district income tax withholding. To see how an exemption count changes take-home pay, use the Ohio paycheck calculator, which applies the exact percentage method.

Ohio City (Municipal) Income Tax

This is the layer that catches people moving to Ohio or between Ohio cities. Most Ohio municipalities levy their own income tax on wages, generally 1% to 3%, and it is a genuinely separate tax from the state income tax. Columbus and Cleveland both levy 2.5%; rates vary city by city.

Two things make the city tax different from the state tax. First, the base is qualifying wages, which equal Medicare wages in W-2 Box 5, so 401(k) deferrals are taxed by the city even though they reduce state tax. Second, the tax is generally withheld where you work; if your home city also taxes wages, you may owe it too, usually with a credit for tax paid to the work city. Most cities outsource collection to RITA (Regional Income Tax Agency) or CCA (Central Collection Agency), while some, such as Columbus, run their own. To see the city line for a specific rate, use the Ohio paycheck calculator, which asks for your city rate directly.

Ohio School District Income Tax

Separate from the city tax, about one-third of Ohio school districts levy their own income tax on residents. The rate is set by the district, commonly 0.5% to 2%, and it is based on where you live, not where you work, which is the opposite of the city tax.

If your school district levies the tax, the employer withholds it on Form SD-101 using the district code from your IT-4, and it is reconciled on the SD-100 return. Because it is residence-based, employers do not always pick it up automatically, especially after a move, so a resident of a taxing district can end up with a balance due at filing. Check your district's status and rate against the Ohio Department of Taxation school district income tax list. The Ohio paycheck calculator models the state and city taxes; add your school district rate separately if you owe it.

Employer Payroll Obligations in Ohio

Ohio employers carry the federal employer taxes plus State Unemployment Insurance (SUI). The federal side, covered in the employer payroll tax obligations guide, includes the matching 6.2% Social Security and 1.45% Medicare plus Federal Unemployment Tax (FUTA). On top of that, Ohio employers pay SUI to the Department of Job and Family Services and must withhold and remit the state, city, and any school district income taxes for employees.

Ohio SUI applies to the first $9,000 of each employee's wages, so the employer SUI tax stops once year-to-date wages pass that base. New non-construction employers pay a standard 2.7% rate; construction employers pay a higher entry rate, and experience-rated employers pay a rate set by their claims history. The wage base and any additional annual fees are set each year by the Department of Job and Family Services, so confirm the current figures on your annual rate notice. These are employer costs and are never deducted from employee pay. Model a full cost-to-hire with the employer payroll tax calculator.

Ohio Has No Employee Unemployment Deduction

A handful of states, including Pennsylvania, take a small unemployment contribution directly from employee wages. Ohio is not one of them. The entire cost of Ohio unemployment insurance falls on employers through the Department of Job and Family Services, so there is no employee unemployment line on an Ohio pay stub.

Ohio also has no state-run disability insurance or paid-family-leave payroll tax deducted from wages, unlike California or New York. So the mandatory deductions on an Ohio stub are federal taxes, the Ohio state income tax, and, in most places, one or two local income taxes. Its absence of an employee unemployment line is correct, not a payroll error.

Ohio Supplemental Wage Withholding

Supplemental wages are payments outside regular salary: bonuses, commissions, overtime, sales awards, and back pay. Ohio applies a flat supplemental withholding rate to these payments for the state line.

• Ohio state income tax on supplemental wages: a flat 3.5% withholding rate.
• City income tax: the same municipal rate that applies to regular wages, in the work city.
• Employee unemployment: none, on supplemental wages or regular wages.

Federal income tax withholding on supplemental wages is a separate calculation set by the IRS (a flat 22% or the aggregate method), and Social Security and Medicare still apply under their own rules. For the federal supplemental math, use the Bonus Tax Calculator.

Ohio Filing and Payment Frequency

Ohio employers report and remit withheld state income tax through the Ohio Business Gateway. The state withholding deposit schedule (monthly, quarterly, or partial-weekly) depends on the amount withheld, and employers reconcile annually. School district income tax is filed separately on the SD-101 and SD-141. The federal deposit schedule is covered in the payroll tax deadlines guide.

City income tax is filed with each city's collector, which for most municipalities is RITA or CCA, on their own schedules. State Unemployment Insurance is reported and paid quarterly through the Department of Job and Family Services. New employees must also be reported to the Ohio new hire directory. Because Ohio has multiple local collectors, an employer running Ohio payroll manages more filing relationships than in a single-tax state.

How Take-Home Pay Works in Ohio

The calculation sequence runs from gross pay down to net pay. The subtlety in Ohio is that the state tax and the city tax use different wage bases, so a pre-tax 401(k) deferral affects them differently.

1. Start with gross wages for the pay period.
2. Subtract federal pre-tax deductions (401(k), Section 125 health premiums) to find taxable wages for federal and Ohio state income tax.
3. Apply federal income tax withholding using the Form W-4 and IRS Publication 15-T.
4. Subtract the per-period share of the IT-4 exemptions, then apply the Ohio percentage-method bands.
5. Apply the city income tax rate to qualifying (Medicare) wages, which do not subtract the 401(k) deferral.
6. Subtract Social Security (6.2%) and Medicare (1.45%) on FICA wages (gross less Section 125 medical), and any school district tax if you live in a taxing district. The remainder is net pay.

To see exact figures for a specific salary, filing status, exemption count, city rate, and pay frequency, use the Ohio paycheck calculator or the general take-home pay calculator for a full pre-tax benefits stack.

What Ohio Employees Should Check on a Pay Stub

• OH state tax line: Confirm the Ohio state tax is withheld under the percentage method after your IT-4 exemptions, not on gross with no exemption.
• City tax line: Most Ohio workers should see a municipal tax at their work city's rate on Medicare wages. If it is missing and you work in a taxing city, question it.
• School district tax: If you live in a taxing district, confirm the SD tax is being withheld, especially after a move.
• Exemption count: Verify the IT-4 exemption number matches the form you filed.
• FICA: Confirm Social Security at 6.2% (until $184,500 of wages for 2026) and Medicare at 1.45% with no cap.

What Ohio Employers Should Verify Before Running Payroll

• State registration: Confirm active accounts for Ohio withholding (Ohio Business Gateway) and State Unemployment Insurance (ODJFS), and check the annual SUI rate notice.
• IT-4 on file: Collect a current Form IT-4 from each employee; without one, withhold as if zero exemptions were claimed.
• Municipal setup: Configure the correct work-city rate and collector (RITA, CCA, or city) for each work location, and any courtesy withholding for home cities.
• School district codes: Use each employee's residence district code to withhold any school district income tax on Form SD-101.
• SUI settings: Confirm the $9,000 wage base and the assigned contribution rate are set in the payroll system.
• New hire reporting: Report each new worker to the Ohio new hire directory.

Ohio Payroll Quick Facts (2026)

Frequently Asked Questions