W 2 form 12a dd July 8, 2019 16 32 64 128 W2 form 12a dd W2 form 12a dd code W 2 form box 12a dd W 2 form box 12a code dd W 2 form line 12a code dd W-2 form box 12 W-2 form W2 form how to fill out W2 form explained