After I got all box 14 items from the W-2 entered (I only have one W2 from a Railroad Type Company), I had to add another line for Railroad Compensation in box 14. Here's how I did it:
1. In BOX 14, type in "RAILROAD COMPENSATION"
2. Enter the $ amount that is equal to the sum of BOX 1 WAGES plus BOX 12 D 401K CONTRIBUTIONS.
3. From the dropdown menu select "RAILROAD COMPENSATION."
