W-2s are usually due from your employer January 31st. If by chance you don't receive your W2, you can file a substitute W2 with your return after February 15th.
See IRS link below that explains what to do if you are missing a W-2:
http://www.irs.gov/uac/What-to-Do-If-You-Are-Missing-a-W-2For any prior year, you can get a free transcript of W-2 info from IRS, or pay IRS for an actual copy of W-2s and return
http://www.irs.gov/taxtopics/tc159.htmlYou can also pay for a copy of the W-2 from the Social Security Administration.
https://faq.ssa.gov/ics/support/KBAnswer.asp?questionID=3836https://ttlc.intuit.com/replies/3301808
