I imported my W-2 and unfortunately noticed today that the automatic import didn't include the fields from box 12. The fields were letter codes C, D and DD.
Fortunately, after having entered them, it doesn't seem to impact my tax refund / liability numbers at all. That being said, with all the magic under the hood, I don't know which forms are potentially impacted by these fields. Would I need to file an amended tax return?
