Correct. We gave an address outside the USA. The dumb thing about the IL-1040 is it only asks what state you resided in if not in Illinois, We can only give a 2 letter state code where you live, which we left blank. Also at the beginning we clearly clicked the box that said non-resident for Illinois. Apparently the IL dept of revenue took it upon themselves to ignore the non-resident checked box and the blank state boxes, and blank dates present in Illinois, and couldn't be bothered to see what mailing address they used to send me the tax bill. Thank you for reassuring me that I shouldn't owe this money. I will work on getting a company letter for us and reinforce that we are not residents of Illinois. I will let it be known if this works. Thank You
