I'm having a similar issue... I purchased a US Treasury Note in the secondary market (at a discount) which matured in 2022. The Accrued Market Discount for this Note is appearing on my Federal Schedule B, but is not flowing through to my Illinois Schedule M, line 22 for US Treasury Interest.
Do I need to adjust this manually somewhere in TT to capture the US Treasury tax exemption for Illinois on the Accrued Market Discount? This Note was originally issued at a discount, although I haven't yet received a 1099-OID.
