Who Should File?
You may need to file an Indiana income tax return if:
Note. If you and your spouse file a joint federal tax return, you must file a joint tax return with Indiana. If you and your spouse file separate federal tax returns, you must file separate tax returns with Indiana.
There are four types of Indiana tax returns available. The type you need to file is generally based on your residency status. Read the following to decide if you are a full-year resident, part-year resident, or nonresident of Indiana, and which type of return you should file.