Hi,
The withheld amount is in table PM30600. Look for records with DISTTYPE = 14. You'll need to Join it to table PM30200 in order to get the Voucher information. Let me know if I can answer any questions.
You know that the withholding function in payables was not designed for the United States. If you are using it for US backup withholding, let me know.
Kind regards,
Leslie
