<prompt> Human: I worked for one company for the entire year of 2012 as a salaried employee with no bonuses. When my company announced that our W-2 forms were available on our HR site, I downloaded it and filed for my return that very same day. I thought the total number was a little low, but I didnt think much of it at the time and was antsy to get the whole thing overwith. Fast forward to today. Im no longer employed with that company as of the middle of 2013, but I still have access to the internal HR site for past pay stub purposes. I logged in to see if on the off chance theyd posted our 2013 W-2 forms yet... they havent, but I was surprised to see a second document labeled 2012, whose upload date was several weeks after Id downloaded the first one. Turns out that I did indeed have a second W-2 for 2012 reporting a gross of 6,666.65 from which normal taxesetc were withheld. I went and checked my pay stubs, and when added to the amount on the first W-2, is consistent with the gross YTD for 2012 on the last pay stub for 2012. No idea why it wasnt on the same W-2 as the rest of my 2012 earnings - 2012 was my second full year with the company and all my earnings were on one W-2 previously.Is there any reason I cant, or shouldnt, report these earnings when I file my taxes for 2013 - or is there a better way to handle this? Of course Im going to contact the HR department to see why this income wasnt on the W-2 as the rest of my 2012 earnings well... going to TRY, anyway, the company is a quickly sinking ship and Im not sure how much of an HR department still exists there, but does anyone have any insight as to why they might have done this?Sorry if these are silly questions, Ive never had to deal with anything more complicated or weird than a 1040-EZ... Lesson learned: always check your pay stubs! Thanks for your help :  <response>: You should file an amended return. This page can get you started. 