Yes. If you are temporarily in KS for school but maintain your residency in IL and intent to return to IL, you will be required to file a IL resident state income tax return. If you have no KS source income, you will have no KS state income tax return filing.
However, if you have any KS source income (from any part-time work while in KS), you
will need to file as non-resident for KS (for your KS source income only). You
will also need to file a IL resident state tax return (for all income from all
sources including KS). You will get a state tax credit in IL for any KS state
taxes that you paid on your nonresident KS state tax return.
You
will want to work on your non-resident KS state tax return first. You will then
take a tax credit from your non-resident KS return on your resident IL state
tax return. (Please note that you will only get a tax credit for your KS taxes
up to the amount of IL taxes that would have been paid if the income was earned
in IL).
Just
follow the TurboTax guide when working on your states (remembering to do your
non-resident state return first) and TurboTax will do all the calculations for
the credit to your resident states return
Here
is additional information about filing in multiple states (select "see
more answer" to view the entire attachment)
https://ttlc.intuit.com/replies/3300797
