The Protecting Americans from Tax Hikes (PATH) Act, enacted last December, includes a new requirement for employers. They are now required to file their copies of Form W-2, submitted to the Social Security Administration, by Jan. 31. The new Jan. 31 filing deadline also applies to certain Forms 1099-MISC reporting non-employee compensation such as payments to independent contractors.
In the past, employers typically had until the end of February, if filing on paper, or the end of March, if filing electronically, to submit their copies of these forms. In addition, there are changes in requesting an extension to file the Form W-2. Only one 30-day extension to file Form W-2 is available and this extension is not automatic. If an extension is necessary, a Form 8809 Application for Extension of Time to File Information Returns must be completed as soon as you know an extension is necessary, but by January 31. Please carefully review the instructions for Form 8809, for more information.
Read the entire IRS notice here: http://www.irs.gov/uac/newsroom/reminder-employers-face-new-jan-31-w2-filing-deadline-some-refunds-delayed-until-feb-15