Ohio school district withholding tax is a local income tax that employers must withhold from the wages of employees who live in one of the roughly 210 Ohio school districts that levy it, then remit to the state on the employee’s behalf.1Ohio Department of Taxation. School District Income Tax It is separate from Ohio state income tax and from any municipal withholding, and it is tied entirely to where the employee lives, not where the work is performed.
When Withholding Is Required
The trigger is the employee’s domicile. Ohio Revised Code Section 5748.01 ties school district income tax to the district where the employee maintains a permanent home.2Ohio Legislative Service Commission. Ohio Revised Code 5748.01 – School District Income Tax Definitions An employee who lives in a taxing district owes the tax even if the job is in a non-taxing district. An employee who commutes into a taxing district from a non-taxing one owes nothing to the district where the work happens.
Rates run from 0.25% to 2.00% depending on the district.3Ohio Department of Taxation. School District Tax Year 2026 To find the rate and four-digit code for any Ohio address, use the Department of Taxation’s lookup tool, The Finder.4Ohio Department of Taxation. The Finder – School District Income Tax
The IT 4 and the Four-Digit District Number
Withholding depends on information the employee gives the employer. The Ohio IT 4 (Employee’s Withholding Exemption Certificate) captures both state and school district withholding information on one form.1Ohio Department of Taxation. School District Income Tax The employee enters the four-digit school district number for their district of residence and submits the form to payroll. It does not go to the state.
An employee who moves into a taxing district mid-year should submit a new IT 4 right away so withholding can start. The same is true when someone moves out: a fresh IT 4 tells payroll to stop withholding for a district where the employee no longer lives. The four-digit number is available through The Finder or on the state’s published list of school districts.5Ohio Department of Taxation. 2025 Ohio School Districts Without the right number, withheld money can be routed to the wrong district, which then has to be sorted out through refund claims.
How and How Often Employers Remit
Employers must remit withheld school district taxes electronically.6Ohio Legislative Service Commission. Ohio Administrative Code Rule 5703-7-19 Periodic payments go in on Form SD 101. Filing frequency depends on the combined Ohio income tax and school district tax the business withheld during the 12-month lookback period ending June 30 of the prior year. If that combined total exceeded $2,000, payments are due monthly. Otherwise, quarterly filing is enough.
Year-End Reconciliation on Form SD 141
By January 31 each year, every employer that withheld school district tax during the prior calendar year must file Form SD 141, the annual reconciliation return. The reconciliation matches total withholdings against the periodic payments already made on the SD 101s.
Penalties, Interest, and Personal Liability
Failing to send in what you withheld is treated seriously. If an employer withholds school district tax from employees but does not remit it on time, the penalty can reach up to 50% of the delinquent amount.7Ohio Legislative Service Commission. Ohio Revised Code 5747.15 – Failure to File or Remit Tax Unpaid amounts also accrue interest at the rate the Tax Commissioner sets each year; the rate for the 2026 calendar year is 7%.8Ohio Department of Taxation. Interest Rates
The state treats amounts required to be withheld as a tax on the employer. The officer or employee responsible for filing and payment can be held personally liable for any failure.9Ohio Department of Taxation. Employer Withholding That liability follows the individual, not just the business entity.
What Employees Still Need to Do
Withholding does not replace the individual return. An employee who lived in a taxing district at any point during the year, received income during that time, and has a tax liability must file Form SD 100 alongside the Ohio IT 1040, both due April 15.10Ohio Legislative Service Commission. Ohio Revised Code 5747.08 – Filing Income Tax Return The Department of Taxation recommends filing the SD 100 anyway when someone lived in a taxing district and had income, because skipping it can trigger a failure-to-file notice even when nothing is owed.1Ohio Department of Taxation. School District Income Tax
Two mismatches are worth watching for. An employee can owe school district income tax while owing zero Ohio state income tax; both returns still get filed. And if an employer withheld school district tax for a district where the employee did not actually live during the year, the employee files an SD 100 to claim a refund of that withholding.1Ohio Department of Taxation. School District Income Tax
Active-Duty Military Pay
Active-duty military pay is treated differently from other wages. An Ohio resident serving in the Army, Air Force, Navy, Marine Corps, Coast Guard, or National Guard and stationed outside Ohio has active-duty pay and allowances exempt from school district income tax. The exemption does not apply to pay received while stationed in Ohio or to compensation for non-active-duty status. A nonresident of Ohio serving in any branch has military pay and allowances fully exempt regardless of where they are stationed.11Ohio Legislative Service Commission. Ohio Revised Code 5747.01 – Definitions Payroll should account for this when setting up withholding for service members.