How Paycheck Taxes Work in Indiana
How paycheck taxes work in Indiana: Your employer withholds federal income tax based on your W-4, then Indiana state income tax using state withholding tables. Social Security (6.2%) and Medicare (1.45%) are also deducted from each paycheck. Indiana's flat tax is one of the more competitive in the Midwest. The 3.15% rate is applied uniformly to all taxable income. Indiana's approach reduces the complexity of tax filing and paycheck estimation. To determine the final take-home pay, the state applies a standard deduction before the flat rate is calculated, ensuring that low-income earners are not disproportionately burdened.
Indiana State Tax Information
Indiana employs a flat state income tax system with a rate of 3.15% for 2026.
Indiana's flat tax is one of the more competitive in the Midwest. The 3.15% rate is applied uniformly to all taxable income. Indiana's approach reduces the complexity of tax filing and paycheck estimation. To determine the final take-home pay, the state applies a standard deduction before the flat rate is calculated, ensuring that low-income earners are not disproportionately burdened.
Indiana is a better state to model carefully when you are comparing job offers, relocations, or remote-work options because state withholding can materially change annual take-home pay.
Federal Income Tax
Federal income tax uses progressive brackets: higher income is taxed at higher rates, not all at one rate. The standard deduction reduces taxable income before brackets apply, and your W-4 affects how much is withheld through the year.
Social Security
Social Security tax (FICA) is 6.2% of wages up to the annual wage base ($184,500 in 2026). Both employee and employer pay this amount; this calculator shows the employee portion.
Medicare
Medicare tax is 1.45% on all wages with no cap. High earners pay an additional 0.9% on wages above $200,000 (single) or $250,000 (married filing jointly).