UPDATED: Filing Deadlines for Forms W-2 and 1099-MISC for 2017 Tax Year. Payroll tax filing dates for W-2s and 1099 forms were changed for 2016 taxes, and these changes continue for reporting 2017 taxes. The filing deadline for 2017 W-2s and 1099 forms (including Form 1099-MISC) is January 31, 2018.The deadline for 1099’s has changed. Everyone needs to have their 1099’s both mailed and their reports filed by January 31 2018.
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