Self-Employed Tax Calculator — Indiana (2026)
Self-employed in Indiana? Your tax bill has three layers that a W-2 employee never sees in full: 15.3% self-employment tax on 92.35% of net profit, federal income tax, and Indiana state income tax. This calculator applies all three to your 2026 net profit and shows the quarterly amount you should be setting aside. Indiana uses a flat personal income tax of 3.00% applied to taxable income after a state standard deduction of $0.
Indiana Self-Employed Tax Calculator
Gross 1099 income minus business expenses.
Self-employment tax vs Indiana income tax
Self-employment tax is federal and identical in all 50 states: 12.4% Social Security up to $184,500 of net earnings plus 2.9% Medicare with no cap. Half of it is deductible against income tax, which is why the calculator subtracts it before applying brackets.
Indiana then taxes essentially the same profit figure at 3.00%. On $80,000 of net profit that adds roughly $2,230 to the bill.
Every Indiana county levies its own income tax, ranging from 0.5% to 3.0% (Marion County / Indianapolis: 2.02%).
Deductions that matter for Indiana freelancers
Net profit — not gross revenue — drives every number here. Ordinary and necessary business expenses reduce SE tax, federal tax, and Indiana tax simultaneously: the 2026 standard mileage rate of $0.67/mile, home-office square footage, software, equipment, professional insurance, and the self-employed health insurance deduction.
Retirement plans go further. A SEP-IRA or solo 401(k) reduces income tax (though not SE tax) and is often the largest single deduction available to a profitable manufacturing contractor in Indianapolis.
Working for yourself in Indiana
Indiana's economy leans on manufacturing, pharma (Eli Lilly), and logistics, which shapes the contractor market around Indianapolis — and your fixed costs. With one-bedroom rent near $1,200, a freelancer needs meaningfully more gross revenue than an employee to reach the same lifestyle, because there is no employer paying half of FICA.
Indiana is scheduled to keep cutting its flat rate — from 3.05% in 2026 to 2.9% by 2027, possibly the lowest progressive-revenue state rate.
Local and payroll taxes Indiana adds on top
County income tax is withheld alongside the state rate based on your county of residence on 1 January. That deduction sits outside the federal and state income tax lines, so build it into your own budget on top of the numbers above.
Every Indiana county levies its own income tax, ranging from 0.5% to 3.0% (Marion County / Indianapolis: 2.02%).
Nobody withholds these for you when you are self-employed in Indiana. Local wage taxes, city business licences and gross-receipts style levies are yours to register for and remit alongside your quarterly federal and state estimates.
Working across a state line from Indiana
Indiana holds income-tax reciprocity agreements with Kentucky, Michigan, Ohio, Pennsylvania and Wisconsin. If you commute between them, your wages are taxed only by your state of residence — file the exemption certificate with your employer so the wrong state is not withheld from every paycheck.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Indianapolis resident spending part of the year at a client site in Illinois may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your Indiana tax bill
Indiana charges a 7% state sales tax, homeowners pay an average effective property tax of 0.84% of market value, and the minimum wage in force during 2026 is $7.25 an hour.
7% statewide with no local sales tax.
Income tax is only one part of a state's take. Indiana recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. Indiana exempts Social Security and offers a deduction for certain military and federal civil service pensions.
Indiana vs Illinois on the same salary
On a $90,000 salary, a single filer keeps about $69,445 a year in Indiana against roughly $67,690 in Illinois — a difference of $1,755, or $146 a month.
Effective combined rates are 22.8% in Indiana and 24.8% in Illinois. Set that gap against living costs: index 90 here versus 93 there, with property tax at 0.84% and 2.07% respectively.
Indiana income tax brackets 2026 (single filer)
| Taxable income | Rate |
|---|---|
| $0 and up | 3.00% |