Railroad employees have these possible entries in Box 14 of Form W-2 Wage and Tax Statement:
If you’re a railroad employee covered by the Railroad Retirement Act (RRTA), these amounts are located in Box 14 with the previous descriptions.
Enter the correct amounts for the previous descriptions on Form W-2 in the section for employees covered by the Railroad Retirement Tax Act (RRTA).
Boxes 3, 4, 5, 6, and 7 of Form W-2 are for employees covered under the Federal Insurance Contributions Act (FICA) and should be left blank for railroad employees.
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the document at the time it is accessed.