US Tax Tools

Indiana Tax Calculator

Indiana applies a flat state rate to adjusted gross income, but that's only part of the picture: every Indiana county also levies its own local income tax on top of the state rate, so your total bill depends on where you live. Indiana's flat state rate is among the lowest of any state that taxes income at all. This calculator applies the state-level flat rate to your entered income.

01INPUTS
Calculate Your State Income Tax
On $100,000 of taxable income in Indiana, your estimated state income tax is $2,950 at an effective rate of 2.95%.
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State Tax

$2,950

Effective Rate

2.95%

Marginal Rate

2.95%
03BREAKDOWN
Tax Bracket Breakdown — Indiana
2.95%$2,950
$0+
Total$2,950
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How Indiana income tax works

  • Indiana multiplies your adjusted gross income by a flat state rate — there are no state brackets.
  • Every Indiana county layers its own additional local income tax on top of the state rate.
  • Your total Indiana tax bill therefore depends on both the state rate and your county of residence.

Need the exact bracket thresholds instead of an estimate? See the Indiana tax brackets for 2026 .

Estimate your Indiana property tax by county, compare every state at the state tax brackets hub , or see the full tax-by-state directory .

Frequently asked questions

How is Indiana income tax calculated?

Indiana applies a flat rate to your adjusted gross income at the state level, then your county adds its own local income tax on top. The calculator shown here applies the statewide flat rate to your entered income.

Does Indiana tax Social Security benefits?

No. Indiana excludes Social Security benefits from state taxable income.

Does Indiana have local income taxes?

Yes — every Indiana county levies its own additional income tax alongside the state rate, and the county rate varies depending on where you live, so your total bill isn't just the state figure alone.

How much state tax will I pay in Indiana?

The state portion is your adjusted gross income times the flat state rate; your county then adds its own rate on top. Enter your income above to see the state-level result.

Sources

Related insights

Use these guides for rule explanations, planning context, and follow-up questions beyond the calculator result.

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Last updated July 19, 2026 Tax year 2025 + 2026 state income tax

Data sources: Indiana revenue department rate tables + Tax Foundation 2025

This tool is general information only, not financial advice.

Reviewed by USTax Tools Editorial Desk

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