In 2020, I moved to an apartment in Illinois, on August 25th, does that make me an Illinois resident?

[mnw1799]

I lived in another state for the year until I moved. For tax purposes, does that make me an Illinois resident? I heard that you're not a resident in a state until you've lived there for over 183 days.

[xmasbaby0]

Did you work or earn income in IL?   If so you will need to file a part-year IL return.

[ColeenD3]

You are a part year resident.

A part-year resident , you must file Form IL-1040 and Schedule NR, Nonresident and Part-Year Resident Computation of Illinois Tax, if

• you earned income from any source while you were a resident,
• you earned income from Illinois sources while you were not a resident, or
• you want a refund of any Illinois Income Tax withheld.

IL DOR