Is he is a US Citizen or Nonresident Alien?
The 1042-S input is for the 1040NR.
What kind of income is it? Some of my international clients receive both a 1099 and 1042 for the same income.
You're going to have trouble getting credit for that 1042-S withholding on a 1040.
The more I know the more I don’t know.
