Indiana has a state income tax, and it applies to most wages and salaries

Yes, Indiana collects state income tax. The current rate is a flat 3.15% on most income, meaning everyone pays the same percentage regardless of how much they earn. This is different from the federal income tax system, which uses tax brackets that increase with income.

The 3.15% rate applies to wages, salaries, and most other forms of income. Indiana also taxes business income, capital gains, and interest and dividends, though the rules for those categories have some variations. If you work in Indiana or live there, you will owe state income tax on your earnings unless you fall into a specific exemption.

Indiana's income tax is separate from federal income tax. You file both returns, and the state does not reduce your federal tax or vice versa. Your employer will withhold both federal and state taxes from your paycheck if you work as a W-2 employee.

Key Takeaways

  • Indiana's state income tax rate is a flat 3.15% on wages and most other income.
  • You owe Indiana income tax if you work in the state or live there, even if you work remotely for an out-of-state employer.
  • Certain types of income, including Social Security benefits and some retirement distributions, are exempt from Indiana state tax.
  • Your employer withholds state income tax from your paycheck; you can adjust withholding by filing a new W-4 form with your employer.

Who has to pay Indiana income tax

You owe Indiana state income tax if you are a resident of Indiana, meaning you live there for more than 183 days in a calendar year. You also owe it if you work in Indiana but live elsewhere, because Indiana taxes income earned within the state regardless of where you live.

If you work remotely for an out-of-state company but live in Indiana, you still owe Indiana income tax on your wages. The state taxes based on where the work is performed or where you live, not where your employer is located. If you live in Indiana but work in another state, you may owe tax to both states, though Indiana offers a credit for taxes paid to other states to prevent double taxation.

Part-time workers, self-employed people, and contractors all owe Indiana income tax on their earnings. If you receive a 1099 form instead of a W-2, you are responsible for paying both the employee and employer portions of self-employment tax, plus Indiana state income tax.

Types of income that are not taxed in Indiana

Social Security benefits are not subject to Indiana state income tax. This applies to retirement benefits, survivor benefits, and disability benefits paid by Social Security. If Social Security is your only income, you will not owe Indiana state income tax, though you may still owe federal income tax depending on your total income.

Certain retirement distributions are also exempt. Indiana does not tax distributions from may have access to retirement plans like 401(k)s and IRAs, though the federal government does. This means you may owe federal income tax on a 401(k) withdrawal but not Indiana state tax.

Military pay for active-duty service members is not taxed by Indiana. Veterans' benefits and military pensions are also exempt. Interest and dividends from certain types of investments receive preferential treatment under Indiana law, though the rules are complex and depend on the specific type of investment.

How withholding works and what to do if too much is taken out

If you are a W-2 employee, your employer withholds Indiana state income tax from each paycheck based on the information you provide on your W-4 form. The withholding is sent to the Indiana Department of Revenue on your behalf. You do not pay this tax directly; it comes out of your gross pay before you receive your check.

If you want to change how much is withheld, you can file a new W-4 form with your employer's payroll department. You might do this if you are having too much withheld and want a larger paycheck, or if you are having too little withheld and want to avoid owing money at tax time. The form takes effect on the next pay period after your employer processes it.

If you are self-employed or have income that is not subject to withholding, you may need to make estimated tax payments to Indiana four times per year. These are due in April, June, September, and January. The Indiana Department of Revenue website has a worksheet to help you calculate whether you owe estimated tax.

What happens if you do not pay Indiana income tax

If you owe Indiana income tax and do not pay, the state can take several actions. The Indiana Department of Revenue can place a lien on your property, garnish your wages, or intercept your state tax refund. If you owe a large amount, the state may also refer your case to a collection agency.

If you filed a return but underpaid, you will owe the unpaid amount plus interest. Interest accrues from the original due date of the return. If the underpayment was due to negligence or intentional disregard of the rules, you may also owe a penalty on top of the interest.

If you did not file a return at all, the consequences are more serious. The state can file a return on your behalf based on information it has from employers and other sources, and you will owe tax, interest, and penalties. The best course of action is to file a return as soon as you realize you owe, even if you cannot pay in full right away. The Indiana Department of Revenue offers payment plans for people who owe but cannot pay immediately.

Indiana income tax rates and brackets

Indiana uses a flat tax rate rather than tax brackets. Everyone pays 3.15% on their income, whether they earn $20,000 or $200,000 per year. This is simpler than the federal system, where your rate increases as your income increases, but it means higher earners pay the same percentage as lower earners.

The 3.15% rate has been in place since 2008. Before that, Indiana used a graduated tax system with multiple brackets. The state legislature set the current flat rate and has not changed it since then, though rates can be adjusted by the legislature at any time.

Some types of income may be taxed at different rates or may be partially exempt. For example, capital gains and certain business income have different treatment under Indiana law. If you have income from sources other than wages, you may want to review the Indiana Department of Revenue website or speak with a tax professional to understand how your specific situation is taxed.

How to file Indiana state income tax

You file Indiana state income tax using Form IT-40, the Indiana Individual Income Tax Return. This form is filed separately from your federal return. You can file by mail or electronically through the Indiana Department of Revenue website or through tax software that supports Indiana returns.

The deadline to file is the same as the federal deadline, which is typically April 15 of the year following the tax year. If April 15 falls on a weekend or holiday, the deadline moves to the next business day. You can request an extension to file, which gives you until October 15, but an extension to file is not an extension to pay. If you owe tax, you should pay by April 15 even if you file late, to minimize interest and penalties.

You will need your W-2 forms from your employers, 1099 forms for any self-employment or other income, and documentation of any deductions or credits you claim. Indiana allows a standard deduction, which is adjusted each year. For 2024, the standard deduction is $3,500 for single filers and $7,000 for married filers, though these amounts change annually.

Frequently Asked Questions

Do I have to pay Indiana income tax if I work remotely for a company in another state?

Yes, if you live in Indiana and work remotely, you owe Indiana income tax on your wages. Indiana taxes based on where you live, not where your employer is located. Your employer may not withhold Indiana tax automatically, so you may need to make estimated payments or adjust your federal withholding to cover the state tax you will owe.

Is Indiana income tax deductible on my federal return?

Yes, you can deduct Indiana state income tax on your federal return if you itemize deductions instead of taking the standard deduction. However, there is a limit: you can deduct up to $10,000 in total state and local taxes (including income tax, property tax, and sales tax combined). Many people find that the federal standard deduction is larger than their itemized deductions, so they do not benefit from this deduction.

What if I moved out of Indiana during the year?

You owe Indiana income tax only on income earned while you were a resident. If you moved out partway through the year, you file a part-year resident return and report only the income you earned before you left. You will also owe tax to the state you moved to on income earned after you arrived there. You may be able to claim a credit on one state's return for taxes paid to the other state.

Can I get a refund if too much Indiana income tax was withheld?

Yes, if your employer withheld more Indiana income tax than you owe, you will receive a refund when you file your return. The refund is processed by the Indiana Department of Revenue and is typically issued within four to six weeks of filing, though it can take longer during busy tax season. You can check the status of your refund on the Indiana Department of Revenue website.

Do I owe Indiana income tax on unemployment benefits?

Yes, unemployment benefits are subject to Indiana state income tax. Your unemployment payments are reported on a 1099-G form, and you owe tax on the full amount. You can request that Indiana withhold tax from your unemployment payments, or you can pay estimated tax quarterly to avoid owing a large amount when you file your return.