Mary, I've done this part correctly. It's when I check the MT state filing for errors, TurboTax doesn't seem to like that what's reported in my W2 for my MT income is not what I reported in the field you showed in your screenshot. Hence the: Montana source wages, salaries, tips, etc. is too large error I get when I TurboTax checks for errors. This is preventing me from filing electronically with the state although I believe I've done everything correctly. I have wondered if the fact that my W2 form for Montana reflects a fraction of what I earned in the state (and what I reported via what you shared) is preventing me from completing the online filing or if there's something else I'm missing.
