State of Indiana Personal Income Tax Extensions

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General Instructions

Indiana personal income tax returns are due by the 15th day of the 4th month following the end of the tax year. For calendar year taxpayers, this deadline is April 15. If you cannot file by that date, you can get a state tax extension.

Whether or not you owe state income tax, you must file an Indiana extension request to get more time to file. There are two ways to obtain an Indiana personal extension:

1. File a timely Federal tax extension (Form 4868) with the IRS. If you have a valid Federal extension, the State of Indiana will automatically grant you a state tax extension — you don’t need to file a separate state request. This will extend your filing deadline for the same period as the Federal extension (6 months) plus an additional 30 days for your Indiana return, moving the deadline to November 15 for calendar year filers. If you owe Indiana tax, you can make a payment online or with Form IT-9 (see links below).

2. File Form IT-9 (Application for Extension of Time to File) with the Indiana Department of Revenue. This will give you a 7-month tax extension if properly filed by the original due date (April 15), which extends the deadline to November 15. You must file Form IT-9 if you want an Indiana tax extension but you don’t have a valid Federal extension. Form IT-9 can also be used to pay your Indiana tax balance. But if you owe zero tax, simply fill out Part 2 (titled “Nonpayment Information”) of Form IT-9.

Note that a tax extension does not give you more time to pay. If you owe Indiana income tax, it must be paid by the original deadline (April 15) or penalties will apply. At least 90% of your Indiana tax liability must be paid in order for your state extension to be approved. If you owe tax, you can make a state tax payment using Indiana Form IT-9. State tax payments can also be made online via Indiana’s Electronic Tax Payment Service:

For more information, please visit the Indiana Department of Revenue website:

Indiana State Income Tax Payment Forms

Individual Income Tax Forms

Mail Form IT-9 to the following address:

Indiana Department of Revenue
P.O. Box 6117
Indianapolis, IN  46206-6117