If I file using my last pay stub, do I have to complete the 12a and 12b boxes?
In the past, I have filed with my last pay stub. I noticed after receiving my 2014 W-2, there were amounts in box 12a and 12b that I didn't report. Can I still file my 2015 taxes using my last pay stub, or do I need to wait for my W-2 and report those amounts?