Thanks for the reply. TurboTax *is* filing a nonresident CO return for me, it's just that I'm paying 0 taxes, when I should be paying a little more than that. I looked on the final CO return and see 0 in the box for entering royalty/rent income earned in CO (box 17), when I believe it should be non-zero. I've marked the rental address as being in CO, so why isn't TurboTax considering that as a CO income source?
