dmertz
Level 15

Retirement tax questions

No.  What was withheld was not backup withholding, so it is not to be reported in box 13 with code B.  See What is backup withholding:

https://www.irs.gov/businesses/small-businesses-self-employed/backup-withholding

 

Also, not being able to pass through the credit for the tax withholding does nothing to invalidate the amount of DNI shown on the Form 1041.