Tax filing dates for 2016 Forms W-2 and 1099 has changed. The latest notification from IRS states that the filing deadline for 2016 W-2 and 1099 forms (incl. Form 1099-MISC) is January 31st, 2017. Evidently, this is a month earlier than the filing date of last year. But, this doesn’t change the deadline for furnishing W-2 forms to employees and 1099-MISC to other workers for 2016. Also, the dates for E-Filing and paper filing remain the same.