I've filled in my 1099-INT and 1099-DIV in Turbo Tax but it's asking me if a portion of the dividends is U.S. Government interest. How would I know this? I have a Fidelity account and have investments in Fidelity 500 Index Fund (FXAIX) as well as several United States Treasury Bills Zero Can. For context, I'm filing my own taxes for the first time and these are new investments for me as or early last year.
