Modernized e-File (MeF) Extended Maintenance Window

In an effort to continually enhance our services, we would like to inform you about an upcoming maintenance window for the Modernized e-File (MeF) system. This maintenance period will affect certain services and channels, as detailed below.

Application to Application (A2A) Channel Maintenance

Please be advised that all services, with the exception of “SendSubmissions,” will be temporarily unavailable for the Application to Application (A2A) channel for the MeF Production System. This maintenance window is scheduled for Sunday, October 22, 2023, and will begin at 12:01 am, extending until 3:00 pm Eastern time.

Internet Filing Application (IFA) Channel Maintenance

Similarly, all services will be temporarily unavailable for the Internet Filing Application (IFA) channel for the MeF Production System. This will occur concurrently with the A2A channel maintenance, on Sunday, October 22, 2023, from 12:01 am until 3:00 pm Eastern time.

Assurance Testing System (ATS) Operational Status

On a positive note, the Assurance Testing System (ATS) will resume operations starting from Monday, October 23, 2023, at 9:00 a.m. Eastern time. Please note that the ATS will only support the WSDLs for Tax Year 2023 / Processing Year 2024 (WSDL version R10.7).

For any future updates regarding the operational status of the MeF system, we encourage you to monitor the MeF Operational Status page.

We understand that this maintenance period may cause some inconvenience and we sincerely apologize for this. We appreciate your patience and understanding as we work to improve our systems for your benefit.