Ah! Fair enough. I will say that I hadn't paid attention to what happened in the past when this was not flagged as a review item, and it appears that by default TurboTax has set the value of Part 2 B9 to 0.0000% every year. For whatever it's worth, it hasn't been an issue for me.
And for clarity this isn't professional advice; I'm just another user who has to file an NC Form D-403. Which, incidentally, should be filed with the NC Department of Revenue, not the IRS.
