State residence

[Christina_Alex]

My voting  residence is Indiana where I grew up 

my permanent mailing address is also in Indiana at my parents home 

however I am a full time grad student in Illinois and also worked part time in Illinois for 2024 

do I use Indiana or Illinois to file state taxes ? 

[SabrinaD2]

It depends on your residency status and where you earned your income.

Explanation:

• Since your home address and voting place are in Indiana, you are considered an Indiana resident. You should file as a full-year resident of Indiana and report all income (including Illinois) as required by Indiana.
• llinois Non-Resident Filing: As an Indiana resident who earned income in Illinois, you need to file an Illinois non-resident tax return (Form IL-1040 and Schedule NR) to report the income earned in Illinois
• Indiana Tax Credit: You can claim a credit on your Indiana state tax return (Form IT-40) for the taxes paid to Illinois. This prevents double taxation on the same income.
• Reciprocity Agreement: Indiana and Illinois do not have a reciprocity agreement. This means you must file tax returns in both states.

For more information, you can refer to the Illinois Department of Revenue and the Indiana Department of Revenue.

[Hal_Al]

Q. Do I use Indiana or Illinois to file state taxes ? 

A. Both, per the details at the other reply.