I realize this is an old thread but this exact problem still existed in 2023 tax return for the state of MA (inability to make adjustments for part year resident US interest obligations). I would simply like to document for anybody else struggling with this issue that not only did I post this problem in 2023, but I consulted by phone with "Turbo Tax Experts" who acknowledged the TT bug, but it still has not been resolved. I ended up having to get a refund from TT for the tax program and I filed with an alternate tax software which handled it perfectly.
TT obviously has a problem dealing with part year resident State returns as it relates to US Treasury Obligations. TT if you are listening please fix this once and for all for all states.
where-is-the-ma-state-part-year-question-to-make-adjustments-for-interest-from-us-obligations/01/327...
