PiggySelf-Employment Tax in Ohio (2026)
BID / exact
Ohio’s headline individual rate for nonbusiness income has flattened near 2.75%, but Schedule C freelancers usually care about something else: the Business Income Deduction (BID) that can wipe out state tax on the first $250,000 of qualifying business income (single / MFJ). Municipal income taxes (Columbus, Cleveland, Cincinnati, and many suburbs) are often the real Ohio set-aside. Federal SE tax remains 15.3% on 92.35% of profit everywhere.
The federal part is the same everywhere
Self-employment tax replaces the payroll taxes an employer would otherwise split with you. As a freelancer you pay both halves: 12.4% for Social Security, on earnings up to the $184,500 wage base, and 2.9% for Medicare with no cap. Together that is 15.3%, charged on 92.35% of your net profit rather than all of it. See SE tax vs employee FICA and 2026 tax constants for the sourced figures.
At $100,000 of net profit federal SE tax is $14,129.55 in Ohio — exactly as it would be in any other state.
What Ohio adds: BID first, then 3% — plus municipal tax
BID / exact State model quality matches the freelancer tax estimator — statutory math on a profit proxy, not a filed state return.
Ohio taxes business income differently from nonbusiness income. Per the Ohio Department of Taxation, qualifying business income (including sole-proprietor Schedule C profit) gets a Business Income Deduction: the first $250,000 is deductible for single and married-filing-jointly filers ($125,000 if married filing separately). Remaining business income is taxed at a flat 3%.
PiggyMath marks OH as BID / exact in the estimator: on a profit proxy we apply that $250k / $125k cap, then 3% on the excess. That is still not a full IT 1040 — character of income, school-district income tax, and credits are omitted. Nonbusiness income (W-2 from a side job, etc.) follows Ohio’s separate individual schedule and is not modeled here.
Source: Ohio Department of Taxation — Business Income Deduction / Schedule of Business Income (first $250k deductible; excess @ 3%).
Municipal income tax (the usual trap)
Hundreds of Ohio cities and villages levy a municipal income tax on residents and often on nonresidents working in the city — commonly about 1–2.5% (Columbus, Cleveland, and Akron are often cited near 2.5%; Cincinnati is lower). Collection may run through RITA, CCA, or the city itself. This local layer has no $250,000 BID. Enter it in the estimator’s local % field or you will under-reserve even when state BID zeroes the state line.
What the layers look like together
| Net profit | Federal SE tax | OH state (BID)* | Illustrative city 2.5%† | SE + state |
|---|---|---|---|---|
| $40,000 | $5,651.82 | $0 | $929 | $5,652 |
| $75,000 | $10,597.16 | $0 | $1,743 | $10,597 |
| $120,000 | $16,955.46 | $0 | $2,788 | $16,955 |
| $280,000 | $39,562.74 | $307 | $6,505 | $39,869 |
* Ohio Business Income Deduction: first $250,000 of business-income proxy deductible for single/MFJ; excess taxed at 3% (Ohio Department of Taxation BID rules). † Municipal income tax is separate — Columbus / Cleveland / Akron often ~2.5%; your city may differ. Educational estimate — not tax advice.
Worked example: $75,000 profit in Ohio
Single filer, $75,000 Schedule C net profit, all treated as Ohio business income, no credits:
- Federal SE tax: $10,597 (15.3% × 92.35% of profit)
- Business-income proxy after SE-half: $69,701
- Ohio state income tax (BID / exact): $0 — under the $250,000 BID
- Illustrative municipal @ 2.5% on the same proxy: $1,743
- SE + state subtotal: $10,597 — before federal income tax, QBI, and city tax
At $280,000 of profit the same BID math leaves about $10,219 exposed at 3%, or roughly $307 of Ohio state tax — still often smaller than federal SE tax, and still separate from city tax.
Run OH in the all-in-one estimator (badge: BID / exact) and add your city rate as local %.
Quarterly payments
State-specific dates and envelopes: quarterly estimated taxes in Ohio.
Federal estimated payments still apply if you expect to owe $1,000 or more. Use the safe harbor calculator and quarterly deadlines. Ohio IT 1040 estimates and municipal declarations (RITA / CCA / city) are separate calendars — do not assume federal safe harbor clears a city underpayment.
Frequently asked questions
What is the self-employment tax rate in Ohio?
15.3%, and it is federal — the same in Ohio as everywhere else. Ohio's own tax on Schedule C profit usually starts with the Business Income Deduction (first $250,000 deductible for single/MFJ), then 3% on the excess — plus municipal income tax in many cities.
Do freelancers under $250,000 owe Ohio state income tax?
Often little or none on pure qualifying business income, because of Ohio's Business Income Deduction. Confirm character of income on the Ohio Schedule of Business Income. Municipal city tax can still apply with no BID.
Is Ohio's 2.75% flat rate what freelancers pay?
The ~2.75% figure is the individual rate story for nonbusiness income above a zero bracket. Sole-proprietor Schedule C profit is generally business income under the BID rules (deduction then 3% on excess). Always check both the BID and your city's municipal rate.
Do I make quarterly payments to Ohio as well as the IRS?
Federal estimates still matter. Ohio and your municipality may also expect estimates or withholding even when state BID zeroes the state line — especially if you owe city tax. Confirm with the Ohio Department of Taxation and your local collector (RITA, CCA, or city).
Work out your own numbers
- Freelancer Tax Estimator — pick Ohio (OH); quality badge shows on the result.
- Self-Employment Tax Calculator — federal 15.3% only.
- 2026 set-aside study — filter CSV rows by
state_code=OH. - Set-aside by income — federal-leaning planning bands.
- SE tax vs employee FICA — why “15.3% of profit” is wrong.
- Methodology · 2026 tax constants — sources and dual-impl checks.
- All states · State comparison tool.