<prompt> Human: I was homeless for a large portion of 2016 and had 4 different jobs that I never got w2s for. The amount I would have got back was pretty minimal so I just never hunted down the w2s. 2017 however I worked the same job the whole year and have a decent return so Im curious if 2016 is gonna bite me in the ass when I try to file.  <response>: Id encourage you to request your 2016 tax documents from the IRS: Aside from any taxes withheld, you may well qualify for the Earned Income Tax Credit.But, no, you dont need to file 2016 to file 2017. But doing that, and doing them in order, is a best practice. 