Indiana Tax Brackets, Rates and Standard Deductions

Prepare and e-File your 2021 Indiana Income Taxes here on together with your Federal Income Tax Return. Per IRS/State regulation - not - an Indiana state tax return can only be e-Filed together with an IRS tax return. Instruction how to only prepare an IN state return on and then download, print sign and mail it in. 

Detailed Information about Indiana state income tax brackets and rates, standard deduction information, and tax forms by tax year etc. can be found on this page. 

If you still need to file an IRS or Indiana return for a previous tax year, then find the Indiana tax forms below. You can complete and sign the forms here on before you mail them to the IN Tax Agency. For Federal or IRS back taxes access the tax forms here.

Indiana Income Tax Returns

Indiana Income Taxes
Prepare only a IN State Return without an IRS return. Details
Step by Step instructions on how to only Prepare and Download - not eFile - State Returnson
File a 2021 Indiana Tax Amendment
Indiana Income Tax Forms
Indiana Tax Brackets, Rates explained
IRS Tax Brackets, Rates by Tax Year
Calculate and Estimate yourIRS Income Tax Brackets and Rates with the eFile RATEucator.

Income Tax Brackets, Rates, Income Ranges, and Estimated Taxes Due

Here you can find how your Indiana based income is taxed at a flat tax rate. When you prepare your return on this is all calculated for you based on your income.

Indiana Tax Brackets for Tax Year 2021

Indiana flat tax rate for 2021 remains at 3.23% for adjusted gross income.

Indiana Tax Brackets for Tax Year 2020

Indiana has an adjusted gross income flat tax rate of 3.23%.

2021 Indiana Standard Deductions

Indiana does not have standard deductions.

Indiana Income Tax Forms

Indiana State Income Tax Forms for Tax Year 2021 (Jan. 1 - Dec. 31, 2021) can be e-Filed in conjunction with a IRS Income Tax Return. Details on how to only prepare and print an Indiana 2021 Tax Return.

Below are forms for prior Tax Years starting with 2020. These back taxes forms can not longer be e-Filed. You can complete the forms with the help of free tax calculators. Complete the respective Form(s) below, sign, and mail them to the Indiana Tax Agency. In addition to filing Indiana Forms you might also have to file previous IRS Tax Return Forms.

In addition to filing Indiana Forms, you might also have to file previous IRS Tax Return Forms. If you can not find the form listed there, use the search button below.

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Form Number, Description

A list of income tax forms for other states.