You update the cost of the stock on your 1099-B/8949 entry to be the market price of the stock at the time of the exercise.......this usually results in a small loss on the exercise due to broker fees. And when you enter the stock exercise, you do not indicate that tax withholding was done with that exercise....that withholding is already shown separately on your W-2 form.
Assuming this was an exercise and immediate sale...Read situation #2 at:
https://turbotax.intuit.com/tax-tips/investments-and-taxes/non-qualified-stock-options/L8zsxRi7B
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
