Stock Option Tax Calculator for Ohio

Stock option exercises in Ohio are subject to a flat 2.75% state income tax on top of federal tax. For NSOs, the spread at exercise is ordinary income subject to both federal and Ohio state tax plus FICA. For ISOs, while there is no regular tax at exercise, the spread counts for AMT purposes and for Ohio state tax calculations. Local taxes in parts of Ohio further increase the cost of exercising. This calculator helps you plan the optimal time and amount to exercise given Ohio's tax rates.

Ohio levies a flat 2.75% state income tax on all taxable income regardless of how much you earn. This makes tax planning straightforward: for every additional dollar you earn, 2.75 cents goes to Ohio. However, certain localities in Ohio impose their own income taxes, which effectively raise the combined state and local rate above 2.75%. Be sure to check whether your city or county adds a local income tax.

The table below shows what you actually keep at five salary levels in Ohio, accounting for federal tax, FICA, and Ohio's flat 2.75% state tax plus estimated local taxes.

See how Ohio compares to other Midwest states. Each link takes you to the stock option tax calculator landing page for that state.

For a comprehensive breakdown of Ohio’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Ohio take-home pay page.