You've read my answer incorrectly. Entering N shares vesting and N shares sold for taxes results in NO SHARES available for sale. For each entry TurboTax subtracts the shares sold "for taxes" from the shares "vested" to come up with the number of shares available for sale. N - N = 0.
I generally advise that people NOT use the RSU step by step wizard because most people don't understand how it works and get confused. If you want to use the RSU step by step and you're reporting sales of shares acquired via "this year's" vesting then you must report the FULL amount that actually vested because that's how TurboTax calculates the compensation that should have been reported on your W-2. But if you had a lot vest "this year" and had multiple sales of stock out of that lot "this year" if you enter the full amount that actually vested with each sale then TurboTax would see that series of entries as MULTIPLE vestings during the year and OVER CALCULATE the compensation.
Confused? That's why I say use the default (non-step-by-step) method for reporting the sales of stock acquired via RSU's and correct the basis reported by the broker.
