My wife did some out of state contracting work as an employee of a consulting firm last year. Our state of residence and domicile has no income tax. The firm of whom she was an employee is based in Illinois. The work was done on site in yet a third state, which also has an income tax. My wife was never physically present in Illinois, except perhaps changing planes at O'Hare.
Her W-2 is showing that IL taxes were withheld, and is not showing any mention of the state in which she actually worked. How should we proceed? Is the W-2 correct? Do we need to get a corrected W-2? What further questions should I be asking?
Any help would be appreciated.
Bill.