I realize this is an old topic. Evidently TT has trouble carrying over Treasury bond market discount to the state forms (not just Illinois, but for Illinois in 2024 in particular). To be precise, I am referring to the following scenario.
You buy a treasury bond at a discount. It matures in the tax year. At the federal level, TT correctly counts this discount as income on Schedule B, Part 1. This is completely correct. The trouble comes at the state level. This Treasury interest income should be subtracted at the state level. It is not being subtracted from the state.
The question is: how do you get this information added into TT without abandoning TT altogether and filling our your own state forms?
