The current W-2 should say "2016". Did your employer use a batch of old forms?
Is it the standard IRS designed form, or is it a custom form provided by your employer?
Or did you mix up this year's W-2 with last year's?
If it's something you recently received this month, you need to ask your employer, payroll dept., etc. what is going on. If they issued your 2016 W-2 as a 2015 W-2, they will need to correct that.
