That interview confuses many people but leaving the shares "for taxes" is not an issue.
The only thing a number in that "for taxes" box does programmatically is that number is subtracted from the "vested" shares number to come up with a number of shares available for sale, and that's all it does.
You clearly are doing something wrong with your entries since with that "for taxes" box or boxes filled in the program is telling you that you haven't reported enough shares available for sale to cover the number of shares sold, so eliminating the "for taxes" number fixes that problem.
IF you're sure that the sales themselves are correctly reported AND the W-2 income TurboTax might calculate agrees to your actual W-2, THEN I'd say there's no harm, no foul by not entering the "for taxes" number or numbers.
Tom Young
