An unmarried male has a home address in MO but works in IL. He has worked in IL for over a year and the only check he received out of MO was his Christmas bonus check from the Union which had taxes taken out. When he had his taxes done he got a small amount back from IL and Federal but he owes a large amount to MO. My question is how can he owe so much to MO when he hasn't worked here or received checks from here? Is this a mistake and he should get a second look or if this is right, how can it be?


Thanks