Indiana Income Tax Rates 2026: What High-Income Earners and Businesses Need to Know
Hey there, fellow Hoosier. If you’re pulling in six figures (or seven), running a business, or just tired of leaving money on the table every April, this is the no-fluff, straight-from-the-trenches guide you’ve been waiting for. I’ve spent years helping high-earners and business owners across Indiana keep more of what they earn—legally, of course—and I’m laying it all out here for tax year 2026.
We’re talking the new lower state rate, the county add-ons that still sting in some places, the 15 deductions people miss every single year, how to fight your property tax bill like a pro, exact filing deadlines with the penalties nobody wants to pay, and the fastest way to see that refund hit your account. Everything 100% pulled from official Indiana Department of Revenue (DOR) sources, Tax Foundation updates, and current law as of February 2026.
Indiana Income Tax Rates 2026 – The Big Picture for High Earners & Businesses
Indiana keeps it simple with a flat tax – one rate for everybody, no matter if you make $50k or $5 million. That’s a huge win compared to states with brackets that punish success.
For tax year 2026 (income earned January 1–December 31, 2026, filed in 2027):
● State flat rate: 2.95% (down from 3.00% in 2025 and 3.05% in 2024).
● Plus your county local income tax (LIT) – ranges from about 0.5% in low-rate counties all the way up to 3%+ in others.
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● Effective combined rate for most Hoosiers: 3.45% to 5.9% depending on where you live.
Six counties raised their county rates effective Jan 1, 2026 (check DOR’s Departmental Notice #1 for your exact zip). High earners in Marion, Allen, or Hamilton counties? You’re still looking at solid savings versus last year, but every tenth of a percent counts when you’re north of $200k.
Corporate & Pass-Through Businesses
C-corps pay a flat 4.9% Indiana Adjusted Gross Income Tax (AGIT) – unchanged and one of the lowest in the Midwest. Pass-throughs (S-corps, LLCs, partnerships) flow through to owners at the individual rate (2.95% + county), but the Pass-Through Entity Tax (PTET) election lets the business pay at the entity level for federal SALT workaround benefits. Smart move for owners hitting the $10k federal SALT cap.
Real Talk for High-Income Earners ($200k+)
That 0.05% drop from 2025 saves a $100k earner $50, a $500k earner $250, and a $2M earner $1,000 — before county. Stack it with proper planning and you’re talking real money.
Example: Married couple in Hamilton County, combined $750k W-2 + business income. At 2.95% state + ~2% county = ~4.95% total Indiana tax on AGI after mods. Proper retirement max-outs, HSA, and business deductions can shave another 1-2% effective. That’s $15k–$30k+ saved annually.
Rate History – How We Got Here
Indiana’s been on a steady cut path since the 2010s. Here’s the visual:
Further cuts are baked in: 2.9% in 2027, and conditional drops starting 2030 if revenue triggers hit (thanks to SB 451 in 2025). High earners win big because flat taxes don’t phase out deductions or create “bubble” rates.