The ATS opening date is TBD. Modernized e-File (MeF) ATS Calls When: TBDTime: TBDConference number: 888-331-8226, participant code 3600320Call Logs: Coming soon! 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. PY2024 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 Issues 94x Form Family (2024) 2024 94x ATS Known Issues 990 Form Family/1120 POL 2023 990 ATS Known Issues 1040 Series and Extensions 2023 1040 Series and Extensions ATS Known Issues 1041 2023 1041 ATS Known Issues 1042 2023 1042 ATS Known Issues 1065 Form Family 2023 1065 ATS Known Issues 1120 Form Family 2023 1120 ATS Known Issues 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 PY2023 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 ATS Known Issues 7004 2022 7004 ATS Known Issues 8849 2023 8849 ATS Known Issues 8868 2022 8868 ATS Known Issues PY2022 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 ATS Known Issues 7004 2021 7004 ATS Known Issues 8849 2022 8849 ATS Known Issues 8868 2021 8868 ATS Known Issues PY2021 ATS Scenario Form Tax Period ATS Scenario Known Issues and Solutions Comments 720 2021 720 ATS Known Issues 94x Form Family (2020) 2020 94x ATS Known Issues 94x Form Family (2021) 2021 94x ATS Known Issues 990 Form Family/1120 POL 2020 990 ATS Known Issues 1040 Series and Extensions 2020 1040 Series and Extensions ATS Known IssuesDOCX 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. 1041 2020 1041 ATS Known Issues 1065 Form Family 2020 1065 ATS Known Issues 1120 Form Family 2020 1120 ATS Known IssuesXLS ATS Scenario 10 will not be available at the start of ATS. 2290 2021 2290 ATS Known Issues 7004 2020 7004 ATS Known Issues 8849 2021 Scenario 6 will not be valid until 11/22/20 8868ZIP 2020 8868 ATS Known Issues Find all MeF Publications on the MeF User Guides and Publications page. Information on the distribution of Modernized e-File (MeF) New Web Service Definition Language (WSDLs) can be found on the Modernized e-File (MeF) Status page. Modernized e-File (MeF) Program Information
