I had several W2G forms. The IRS rejected all of them for having incorrect Payor IDs. The Federal EIN was correct but the form did not have a payor's state tax ID or state (the fields were blank) , as were the state winnings. Once I found out the Payor's State ID and put it into the form, it was accepted by the IRS. That form is bulky and extremely slow, took forever to enter data
