The IRS Modernized e-file, the system that processes electronically-filed business returns, will shut down after December 27, 2018, so the agency can perform annual maintenance and
During this extended IRS maintenance window;
- E-file for both Federal and State business income tax returns will be closed and no new acknowledgments will become available.
- Acknowledgments received from the IRS prior to the IRS shutdown will remain available.
- The option to continue transmitting business returns from 2016 and 2017 is available.
- Tax Year 2016 and 2017 business returns will resume with the opening of the IRS Business e-File season in January 2019.
Exceptions during this shutdown period:
- FBAR returns are not affected. These returns will continue to be available for transmission, and acknowledgments will continue to post.
- California business returns are not affected. These returns will continue to be available for transmission, and acknowledgments will continue to post.