Deadline to File Extension for Forms 1094-C and 1094-B
3/1 Deadline only applies to groups that will file the extension Form 8809 non-electronically.
Deadline to file Form 8809 electronically is 3/31.
*Form 8809 must be filed on or before the due date of the returns.
IRS.
Employers can file Form 8809 to get an automatic 30-day extension of time to file Forms 1094-C or 1094-B.
FIRE Production System, You can file Form 8809 online by completing a fill-in Form 8809 through the FIRE system for an automatic 30-day extension (not available for Form W-2). Acknowledgments are automatically displayed online if the request is made by the due date of the return.
