1099 Tax Calculator Indiana 2026
Indiana has a flat 3.0% individual income tax rate (reduced from 3.05% effective January 1, 2025). Most Indiana counties impose additional local income taxes averaging 0.49% - these are not modeled in this calculator. Self-employed workers in Indiana owe state tax in addition to federal income tax (10-37%) and 15.3% self-employment tax. Use the calculator below to estimate your 2026 tax liability.
Net income after business expenses
Enter your income to see your tax breakdown
How Indiana taxes self-employment income
Indiana has a flat 3.00% state income tax.
Indiana has a flat 3.0% individual income tax rate (reduced from 3.05% effective January 1, 2025). The state has no standard deduction but offers a $1,000 personal exemption ($2,000 MFJ). Most Indiana counties also impose local income taxes (not modeled in this calculator).
Federal tax also applies
Regardless of state, all 1099 contractors and self-employed workers in Indiana owe federal income tax and self-employment tax. SE tax is 15.3% on net earnings (12.4% Social Security up to $184,500 in 2026, plus 2.9% Medicare with no cap). Federal income tax follows the standard bracket structure (10-37%).
The calculator above includes federal, SE, and Indiana state tax in one estimate, and breaks down quarterly estimated payments due April 15, June 15, September 15, 2026, and January 15, 2027.