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

 

ATS opening for testing on October 12, 2021 for IMF and BMF tax returns that will be processed in 2022.

Modernized e-File (MeF) ATS Calls

When: Tuesday October 12, 2021 and Wednesday October 13, 2021
Time: 2:30 p.m. EST
Conference number: 888-331-8226, participant code 3600320
MeF ATS Call Log for Tax Year 2020 PDF

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. Please see the Exempt Organization ATS page  for Exempt Organization returns.

ATS Scenario Form Tax Period ATS Scenario Known Issues and Solutions Comments

1120 Form Family

2021 1120 ATS Known Issues PDF  
1065 Form Family 2021 1065 ATS Known Issues XLS  
2290 2022 2290 ATS Known Issues Expected availability on or before June 30, 2022.
720 2022 720 ATS Known Issues  
8849 2022 8849 ATS Known Issues  
1040 Series and Extensions 2021

1040 Series and Extensions ATS Known Issues

 

94x Form Family (2021) 2021 94x ATS Known Issues  
94x Form Family (2022) 2022 94x ATS Known Issues  
1041 2021 1041 ATS Known Issues  
990 Form Family/1120 POL 2021 990 ATS Known Issues  
7004 2021 7004 ATS Known Issues  
8868 2021 8868 ATS Known Issues  
ATS Scenario Form Tax Period ATS Scenario Known Issues and Solutions Comments

1120 Form Family

2020 1120 ATS Known Issues XLS ATS Scenario 10 will not be available at the start of ATS.
1065 Form Family 2020 1065 ATS Known Issues  
2290 2021 2290 ATS Known Issues  
720 2021 720 ATS Known Issues  
8849 2021 Scenario 6 will not be valid until 11/22/20  
1040 Series and Extensions 2020

1040 Series and Extensions ATS Known Issues DOCX

03/04/2021:  1040 MeF ATS Scenario 1 (Form 1040-NR) is available and will be operational in the Assurance Testing System on March 07, 2021.  

94x Form Family (2020) 2020 94x ATS Known Issues  
94x Form Family (2021) 2021 94x ATS Known Issues  
1041 2020 1041 ATS Known Issues  
990 Form Family/1120 POL 2020 990 ATS Known Issues  
7004 2020 7004 ATS Known Issues  
8868 ZIP 2020 8868 ATS Known Issues  
ATS Scenario Form Tax Period ATS Scenario Known Issues and Solutions Comments

1120 Form Family

2019 1120 ATS Known Issues XLS Scenario 16 is an early look and will not be available at the start of ATS.
1065 Form Family 2019 1065 ATS Known Issues XLS Scenarios 6 and 7 are an early look and will not be available at the start of ATS.
2290 2020 2290 ATS Known Issues  
720 2020 720 ATS Known Issues  
8849 2020 8849 ATS Known Issues  
1040 Series and Extensions 2019

1040 Series and Extensions ATS Known Issues PDF

1040-X ATS Known Issues PDF

06/19/2020: Added 1040-X Known Issues and Solutions 

06/05/2020: Added Form 1040-X scenarios 2 and 3.

12/18/2019: 1040 MeF ATS Scenarios 16 and 17 were updated.

12/17/2019:  1040 Series and Extensions ATS Known Issues were updated on 12/17/2019.

12/17/2019:  1040 MeF ATS Scenario 4 and 1040-SS(PR) MeF ATS Scenario 6 were made available on 12/17/2019.  As noted, these scenarios will not be operational in the Assurance Testing System until 12/30/2019. 

12/11/2019:  1040 Series and Extensions ATS Known Issues were updated on 12/09/2019.

12/11/2019:  1040 MeF ATS Scenario 1 and 1040 MeF ATS Scenario 5 were made available on 12/09/2019.

11/13/2019:  Form 1040-NR scenarios 2 and 3 have been modified.

11/06/2019:  1040-NR Disabled Business Rules Tax Year 2019 PDF

11/06/2019:  1040 Series and Extensions ATS Known Issues has been updated

11/06/2019:  Form 1040-NR scenario 4 has been modified. 

11/04/2019:  Form 1040 scenario 3 has been modified.

10/31/2019:  Due to unforeseen circumstances, Form 1040-NR scenarios 2 and 3 have been disabled until further notice.  Available date to be determined.

10/31/2019:  Form 1040 scenario 2 has been modified

10/23/2019:  Form 1040 scenarios 2 and 3, Form 1040-SR scenario 1, and 1040-NR scenario 4 have been modified.

10/21/2019: Scenarios 1, 4, 5, and 6 are currently unavailable. Available date to be determined. 

94x Form Family (2019) 2019 94x ATS Known Issues (2019)  
94x Form Family (2020) 2020 94x ATS Known Issues (2020)  
1041 2019 1041 ATS Known Issues XLSX  
990 Form Family/1120 POL 2019 990 ATS Known Issues  
7004 2019 7004 ATS Known Issues  
8868 ZIP 2019 8868 ATS Known Issues  


Modernized e-File (MeF) Program Information