Yes, Ohio now has a flat income tax: as of January 1, 2026, the state taxes all nonbusiness income above $26,050 at a single rate of 2.75%, replacing its old system of graduated brackets. Income at or below $26,050 is still taxed at 0%, so the lowest earners continue to owe no state income tax. If you live or run a business in Columbus or anywhere in Ohio, this changes the return you will file and how you plan. Here is what the Ohio flat income tax actually is, how it differs from the old system, who comes out ahead, and what to keep in mind going forward.
What Is Ohio’s Flat Income Tax?
Starting with the 2026 tax year, Ohio taxes nonbusiness income at a single flat rate of 2.75% on income above $26,050. Income at or below $26,050 is still taxed at 0%, so the lowest earners continue to owe no state income tax. Above that line, everyone pays the same 2.75% rate, no matter how high their income climbs.
This came from House Bill 96, the state budget signed in mid-2025, which phased out Ohio’s top brackets over two years (the top rate stepped down from 3.5% to 3.125% in 2025, then to the flat 2.75% in 2026). The change makes Ohio one of the lower flat-tax states in the country.
Flat Tax vs. Graduated Tax: What Actually Changed
To understand why this matters, it helps to see the contrast. Under a graduated (or progressive) income tax, like the federal system, income is taxed in tiers, and higher portions of income are taxed at higher rates. As you earn more, your top dollars are taxed more heavily than your first dollars.
A flat tax does away with those tiers. Above the $26,050 exemption, every dollar is taxed at the same 2.75%, whether you earn $40,000 or $400,000. Ohio previously ran a graduated system with multiple brackets; now, apart from that zero bracket at the bottom, it is one rate for everyone.
The most commonly cited advantage is predictability. With a single rate, it becomes very straightforward to estimate what you will owe the state, which makes planning easier for individuals and businesses alike. You no longer have to work through brackets to know your Ohio liability; it is one calculation.
Who Benefits From the Flat Tax?
This is where the honest, balanced picture matters, and it is worth being straight about it. A flat tax delivers its largest benefit to higher-income earners, and it offers little or nothing to lower-income earners.
The reason follows from the math. Lower earners were already taxed lightly, and anyone under $26,050 already owed no Ohio income tax, so a lower top rate does not help them; there is no break to give. The savings from removing the upper brackets flow to those who were paying the higher rates in the first place, which means high earners see the biggest reductions. Independent analyses of the change reached the same conclusion: the largest dollar savings land with top earners, while median households see modest savings and the lowest earners see essentially none.
Supporters, including groups like the ITR Foundation, argue the flat tax simplifies the code, improves predictability, and makes Ohio more economically competitive with neighboring states. Critics, including groups like Policy Matters Ohio, argue it disproportionately benefits the wealthy and provides little relief to working families. Both sides are pointing at real features of the same policy: it is simpler and more predictable, and its benefits are unevenly distributed. Where you land on whether that is good policy depends on what you value, which is a question for voters, not an accountant.
A Few Details Columbus Taxpayers Should Know
Beyond the headline rate, a few specifics are worth having on your radar.
First, the flat rate applies to nonbusiness income, which includes most W-2 wages. Ohio business income continues under its own rules, with the first $250,000 of business income generally exempt and a 3% rate above that, unchanged by this law.
Second, high earners should note that some benefits phase out. Starting in 2026, individuals with taxable income over $500,000 lose access to the personal, spousal, and dependent exemptions and the joint filing credit, which can offset part of the flat-rate savings for the highest earners.
Third, and this is a big one for Columbus specifically: the state income tax is now flat, but your city income tax is separate and unchanged. Columbus levies its own municipal income tax of 2.5%, collected on top of the state rate. With the state portion now flat, your municipal rate is often the bigger variable in your total Ohio tax picture, and two households with the same income can owe very different totals depending on which city they live and work in.
Finally, the $26,050 threshold is not indexed to inflation, so over time, as wages rise, more income will fall above the line and become taxable. That is a slow effect, but worth knowing for long-range planning.
What This Means for Your Tax Planning
For most Columbus households, the flat tax means a simpler state calculation and, for many, a modestly lower state bill. For high earners, it can mean meaningful savings on the rate, partly offset by the loss of exemptions above $500,000. And for business owners, it is a reminder to look at the whole picture: state flat tax, the separate business income rules, and your Columbus municipal tax together, since they interact. The predictability is a genuine planning benefit, but the details around exemptions and municipal tax are where a professional review pays off.
Frequently Asked Questions
Does Ohio have a flat income tax?
Yes. As of the 2026 tax year, Ohio taxes nonbusiness income at a single flat rate of 2.75% on income above $26,050. Income at or below $26,050 is taxed at 0%.
What is Ohio’s income tax rate for 2026?
2.75% on nonbusiness income above $26,050. Below that threshold, the rate is 0%. This replaced Ohio’s former graduated bracket system.
Who benefits most from Ohio’s flat tax?
Higher-income earners see the largest dollar savings, since the change removed the upper brackets they previously paid. Median households see modest savings, and the lowest earners, already at 0%, see essentially no change.
Does the flat tax change my Columbus city tax?
No. The Columbus municipal income tax (2.5%) is separate from the state tax and is unchanged. With the state rate now flat, your city rate is often the larger variable in your total bill.
Is Ohio business income taxed at the flat rate?
No. The 2.75% flat rate applies to nonbusiness income, including most W-2 wages. Ohio business income follows separate rules, generally exempting the first $250,000 and taxing income above that at 3%.
Questions About How the Flat Tax Affects You?
Ohio’s move to a flat income tax simplified the state’s system, but the interaction between the flat state rate, the separate business income rules, the Columbus municipal tax, and the exemption phase-outs for high earners still takes some sorting out. If you want to understand exactly what the change means for your household or your business, Boxelder’s Columbus team can walk you through it. Schedule a consultation with Boxelder.
