I am little confused on how to find my cost basis for the RSU that I sold last year. This is what happened in my case. On 12/7/2023 a total of 141 RSU's vested out of which 42 were withheld for tax purposes leaving me with net 99 units. The unit price on the day of vest was 29.41. The FMV of the total 141 units vested was 141*29.41 = 4146.81. The 42 units that were withheld for taxes had a FMV of 1235.22.
I sold the 99 units last year for a price of 31.82/unit for a total proceed of 99*31.82 = 3150.18. My 1099 lists the cost basis for the 99 units as 99*39.41 = 2911.59 which I think is incorrect as it does NOT take into account the 42 units that were withheld back for taxes. Is my cost basis 4146.81 or 2911.59 or something else.
My W2 shows an amount in box 14 with RSU VEST as a code. This amount does include the 2911.59 (amount I received from the sale) +1235.22 (taxes withheld when the RSU vested).
(Note: I had sold other RSU's throughout the year so the actual amount on box 14 is different)
