Modernized e-File (MeF) Assurance Testing System (ATS)

 

The ATS opening date is October 23, 2023.

Modernized e-File (MeF) ATS calls

When: October 24, 25, and 26
Time: 2 p.m. Eastern time
Conference number: 888-331-8226, participant code 3600320
Call Logs:

Modernized e-File (MeF) Assurance Testing System (ATS) updates

The Modernized e-File (MeF) Assurance Testing System (ATS) scenarios and known issues are listed in the table below.
Use tab to go to the next focusable element.

ATS scenario form Tax period ATS scenario known issues and solutions Comments
720 2024 720 ATS known issues  
94x form family (2023) 2023 94x ATS known issuesXLS  
94x form family (2024) 2024 94x ATS known issuesXLS  
990 form family/1120 POL 2023 990 ATS known issues  
1040 series and extensions 2023 1040 series and extensions ATS known issuesXLSX

12/19/2023 – 1040 series and extensions ATS known issues and solutions file updated. 

12/06/2023 – 1040 series and extensions ATS known issues and solutions file updated.

11/29/2023 – 1040 series and extensions ATS known issues and solutions file updated.

11/16/2023 – 1040 series and extensions ATS known issues and solutions file updated.

11/07/2023 – 1040 series and extensions ATS known issues and solutions file updated.

11/01/2023 - 1040 series and extensions ATS known issues and solutions file updated.

1041 2023 1041 ATS known issues  
1042 2023 1042 ATS known issues  
1065 form family 2023 1065 ATS known issuesPDF  
1120 form family  2023 1120 ATS known issuesXLS ATS scenarios 10 and 11 will not be available at the start of ATS.
2290 2023 2290 ATS known issues  
2290 2024 2290 ATS known issues This content will be updated in June 2024.
7004 2023 7004 ATS known issues  
8849 2024 8849 ATS known issues  
8868 2023 8868 ATS known issues  
 
ATS scenario form Tax period ATS scenario known issues and solutions Comments
720 2023 720 ATS known issues  
94x form family (2022) 2022 94x ATS known issues  
94x form family (2023) 2023 94x ATS known issues  
990 form family/1120 POL 2022 990 ATS known issues  
1040 series and extensions 2022 1040 series and extensions ATS known issuesXLSX 11/22/2022: 1040 ATS known issues and solutions has been updated.

11/22/2022: All 1040 series and extensions ATS scenarios for processing year 2023 are available.
11/08/2022: 1040 ATS scenario known issues and solutions has been updated.

1041 2022 1041 ATS known issuesXLS  
1042 2022 1042 ATS known issuesXLSX  
1065 form family 2022 1065 ATS known issuesXLS  
1120 form family 2022 1120 ATS known issuesXLS  
2290 (2023)
2290 (2022)
2023
2022
2290 ATS known issues  
7004 2022 7004 ATS known issues  
8849 2023 8849 ATS known issues  
8868 2022 8868 ATS known issues  
ATS scenario form Tax period ATS scenario known issues and solutions Comments
720 2022 720 ATS known issues  
94x form family (2021) 2021 94x ATS known issues  
94x form family (2022) 2022 94x ATS known issuesXLS  
990 form family/1120 POL 2021 990 ATS known issues  
1040 series and extensions ATS known issuesXLSX 2021  

07/26/2022: The 1040 series and extensions ATS known issues file has been modified and is available.  

07/21/2022: The 1040 series and extensions ATS known issues file has been modified only to correct file display issues.

06/14/2022:  The 1040 series and extensions ATS known issues file has been modified and is available.

01/07/2022:  The 1040 series and extensions ATS known issues file has been modified and is available.

01/07/2022:  1040 MeF ATS scenarios 2 and 5 have been modified and are available. 

01/07/2022:  1040-NR ATS scenario 1 has been modified and is available. 

12/20/2021:  1040 MeF ATS scenario 5 has been modified and is available.  

12/20/2021:  The 1040 series and extensions ATS known issues file has been modified and is available.

1041 2021 1041 ATS known issues  
1065 form family 2021 1065 ATS known issuesPDF  
1120 form family 2021 1120 ATS known issuesPDF  
2290 (2022)
2290 (2021)
2022 
2021
2290 ATS known issues  

7004

2021 7004 ATS known issues  
8849 2022 8849 ATS known issues  
8868 2021 8868 ATS known issues