@Patty13 -- If you never lived in or physically worked in Illinois, your work income is not subject to Illinois taxation. Submit a non-resident Illinois tax return, allocating zero income to Illinois, in order to receive a refund of the incorrectly withheld Illinois taxes.
A few states tax non-resident remote workers, but Illinois is not one of them. Advise your employer to cease withholding Illinois taxes.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
