TT does not give you the option of "multiple states" in the estimated taxes section. If you leave the state blank, TT will apply your entry to your home state.
The "multiple states" option usually comes up in the dividends and interest section (box 11 of form 1099-DIV or box 8 of form 1099-INT). Since only your home state taxes federally tax free interest, entering multiple states is OK. Otherwise, you going to have to ask your broker/mutual fund co. for a breakdown (usually available at their web site with some search effort).
