Box 12 aa code July 8, 2019 16 32 64 128 Box 12 code aa on w2 Box 12 code aa meaning Box 12 code aa w 2 W2 box 12 code aa meaning Tax box 12 code aa Irs box 12 code aa Box 12 letter code aa What does box 12 code aa mean on w2 Irs w2 box 12 code aa Form w2 box 12 code aa 2023 w 2 box 12 code aa