I think I know what's being asked here. For the box on the 1099-G labeled "Payer's TIN" that number is referred to by some as the Payer's ID" and others as the FEIN (Federal Employer Identification Number". So the only difference between the "payer's ID" and the "EIN" is the spelling.
If you have anything in box 10, do not confuse the above with the "State Identification No." in box 10b.
