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Indianapolis Indiana Tax Guide 2026: IN 2.95% Flat Tax, Marion County Tax & 92-County System

Daniel · CountryTaxCalc Updated May 2026
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KEY INSIGHT
Indianapolis residents pay Indiana's 2.95% flat state income tax plus Marion County's 2.02% county income tax — a combined 4.97%. Indiana's 92 counties each set their own income tax rate (ranging from 0.5% to 3.38%), making it one of the most complex local income tax systems in the US. There is no separate Indianapolis city income tax — the county rate is the local layer. Understanding which county you live and work in matters significantly for employer withholding.
At a glance

Key Facts

Indiana State Flat Income Tax 2026
2.95% flat rate on all Indiana taxable income. Indiana personal exemption: $1,000 per taxpayer; $1,000 per dependent. Indiana does not tax Social Security income. Indiana does not have a standard deduction in the same form as federal — the personal exemption is the primary reduction. Indiana taxes wages, salaries, self-employment income, interest, dividends, and capital gains at the flat 2.95% rate.
Marion County Income Tax — 2.02%
Marion County (Indianapolis) levies a county income tax of 2.02% on income earned by Marion County residents. Combined with state: 2.95% + 2.02% = 4.97% total. Marion County's rate is above average for Indiana — many suburban counties (Boone, Hamilton, Hendricks) have lower rates. Residents of Hamilton County (Carmel, Fishers) pay 1.1% county tax for a combined 4.05%. This creates a meaningful suburban-vs-city tax differential in the Indy metro.
Indiana's 92-County Income Tax System
Every one of Indiana's 92 counties levies its own income tax rate, ranging from 0.5% (some rural counties) to 3.38% (highest). Indiana county income taxes are based on RESIDENCE — you owe your home county's rate regardless of where you work. Employer withholding is required at the employee's home county rate. If you move between Indiana counties mid-year, you owe a blended rate for the months in each county. Indiana Department of Revenue provides a county tax rate table updated annually.
Indianapolis Property Tax
Marion County property tax rates vary by township and school district. Indianapolis/Marion County combined effective rate: approximately 1.0-1.5% of market value. Indiana assesses property at market value. Indiana has a 1% gross income tax credit for homesteads, which reduces the effective rate. For a $350,000 Indianapolis home: approximately $3,500-$5,250/year. Indiana's circuit breaker caps property tax at 1% of gross assessed value for owner-occupied homes, 2% for rental property, 3% for commercial — a statewide cap system.
Indiana Sports and Events Economy
Indianapolis is home to the Colts (NFL), Pacers (NBA), and hosts the Indianapolis 500 and major NCAA events. Event workers, athletes, and entertainers working in Indianapolis have Indiana state withholding obligations. For professional athletes: Indiana levies income tax on the portion of salary attributable to Indiana games ('jock tax'). The formula: Indiana game days / total game days x annual salary x combined IN+county rate. This is standard practice across most states with professional sports teams.
Introduction

Indianapolis occupies Marion County, which levies a 2.02% county income tax on top of Indiana's 2.95% flat state rate (combined: 4.97%). Indiana's county income tax system is uniquely complex: all 92 counties have their own rate, set locally, administered through state withholding, and collected at tax time. Moving from one Indiana county to another can change your local tax rate by 1-2 percentage points. For employers with workers across multiple Indiana counties, withholding the correct county rate requires knowing each employee's exact home county — not just city or zip code.

Section 01

Marion County vs Suburban Counties: Significant Tax Differences

The Indianapolis metro area spans multiple counties with very different tax rates. At $120,000 income, Indiana state tax is always 2.95% ($3,540). Local layer varies: Marion County (Indianapolis): 2.02% = $2,424 local. Hamilton County (Carmel/Fishers): 1.1% = $1,320 local. Hendricks County (Avon/Plainfield): 1.5% = $1,800 local. Johnson County (Greenwood): 1.2% = $1,440 local. Boone County (Zionsville/Lebanon): 1.5% = $1,800 local.

Annual saving for Hamilton County vs Marion County resident: $1,104. Over 10 years: $11,040 in local income tax alone. Hamilton County (Carmel/Fishers) is Indiana's wealthiest county partly for this reason — high-earners cluster in lower-tax counties while working in Marion County.

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Indiana CPA

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Indiana's 92-county income tax system causes frequent withholding errors and multi-county filing complexity. TaxHub connects Indianapolis residents with Indiana CPAs for county tax compliance, retirement planning, and equity compensation.

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FAQ

Frequently Asked Questions

Which Indiana county am I taxed in if I work in Indianapolis but live in Hamilton County?

You pay Hamilton County's rate (1.1%) — Indiana county income tax is based on where you LIVE, not where you work. Your employer in Indianapolis (Marion County) should withhold Hamilton County's rate if you provide your correct home county on your withholding form (IT-2104 equivalent). Many employers default to the work county rate — verify your W-2 county code and file Form IT-40 to claim a refund or pay the correct amount at year end.

Does Indiana tax Social Security income?

No. Indiana does not tax Social Security income regardless of your income level. Indiana also provides an additional tax deduction for qualifying retirement income (pension income, 401(k), IRA distributions) for residents 62+: up to $16,000 deduction per person. This makes Indiana reasonably retirement-friendly despite the county income tax layer.

What is Indiana's property tax circuit breaker?

Indiana's circuit breaker caps property tax at: 1% of gross assessed value for owner-occupied residential homes; 2% for rental residential; 3% for commercial and other property. This means an Indianapolis homeowner with a $400,000 home cannot pay more than $4,000/year in property taxes (1% x $400,000). In practice, most Marion County homes pay below the cap, but the protection prevents extreme tax increases in rapidly appreciating areas.

How do Indiana county income taxes affect remote workers?

Remote workers in Indiana pay their home county rate regardless of where their employer is located. An Indiana resident working remotely for a California company pays Indiana state (2.95%) + their home county rate — no California income tax obligation if they never physically work in California. Indiana's CCIT (County Adjusted Gross Income Tax) is withheld by the employer based on the employee's home county code, which must be accurately reported on the employee's withholding certificate.

Does Indianapolis have its own city income tax?

No. Indianapolis (Marion County) uses the county income tax system — there is no separate city of Indianapolis income tax distinct from the Marion County rate. The 2.02% Marion County rate is the local income tax for Indianapolis residents. This is different from Ohio cities or Pennsylvania municipalities which have separate city-level taxes. Indiana's structure uses counties (not cities) as the local tax unit.

What are the major employers in Indianapolis and what are the tax implications?

Major Indianapolis employers include Eli Lilly, Salesforce (Indiana HQ), Rolls-Royce (North America operations), Anthem (now Elevance Health), and Simon Property Group. For corporate employees: standard Indiana income tax applies. Stock options and RSUs from these employers vest as Indiana ordinary income at 2.95% + county rate. Indiana has no preferential capital gains rate. For Eli Lilly employees with significant equity: consulting a CPA on Indiana withholding and estimated tax payments is advisable for large vesting events.
Disclaimer:This guide provides general tax information for educational purposes only. Indiana county income tax rates change periodically. Verify your county rate at the Indiana Department of Revenue website. Consult an Indiana-licensed CPA for complex situations.
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