What if the employer does not have a letter in box 12?

[VolvoGirl]

Do you have any amounts for boxes 12a-12d? If not leave 12 blank.

[Mike9241]

are there any amounts in box 12.  there are approximately 30 different codes for box 12 so there can be more boxes for 12 than just a through d. some of these items flow to other forms and have to be reported.  so if there's are amounts, you need to contact your employer for a corrected w-2.