If the "salary" is reported on a W-2 the 401k contributions will be subtracted from the income in box 1 and reported in Box 12 with a code of D.
If you receive a K-1 the contributions to the employer's 401k should be shown on the K-1 in Box 13 with Code R.
When you are going through the interview to enter the K-1 you will see a screen, Enter Code R Detail. The box for the payments to 401K should already be filled out. You can also enter any
Employer matching Contributions to the 401k.
@Jpdelong_1
