ATS opened for testing on November 2, 2020 for IMF and BMF tax returns that will be processed in 2021. Modernized e-File (MeF) ATS Calls When: Wednesday November 4, 2020Time: 2:30 p.m. ESTConference number: 888-331-8226, participant code 3600320MeF 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. PY2021 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 TY 2021 will be available on or before June 1, 2021. 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 2021 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 PY2020 ATS Scenario Form Tax Period ATS Scenario Known Issues and Solutions Comments 1120 Form Family 2019 1120 ATS Known Issues XLS (XLS) 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 (ZIP) 2019 8868 ATS Known Issues PY2019 ATS Scenario Form Tax Period ATS Scenario Known Issues and Solutions Comments 1120 Form Family 2018 1120 ATS Known Issues PDF 11-15-2018 Posted ATS Known Issues 1065 Form Family 2018 1065 ATS Known Issues PDF 10-15-2018 Posted ATS Known Issues 2290 2019 2290 ATS Known Issues 720 2019 720 ATS Known Issues 8849 2019 8849 ATS Known Issues 1040 Series and Extensions 2018 1040 Series and Extensions ATS Known Issues PDF 01-23-2019 1040 Series and Extensions ATS Known Issues has been updated. 01-16-2019 1040 Series and Extensions ATS Known Issues has been updated. 01-08-2019 1040 Series and Extensions ATS Known Issues has been updated. 01-08-2019 1040 ATS Disabled Business Rules Tax Year 2018 PDF 12-17-2018 1040 ATS Disabled Business Rules Tax Year 2018 PDF 11-08-2018 1040 Series and Extensions ATS Known Issues has been updated. 11-05-2018 1040 ATS Disabled Business Rules Tax Year 2018 PDF 11-05-2018 1040 Series and Extensions ATS Known Issues has been updated. 11-05-2018 An update has been made to 1040 ATS Scenario 3 94x Form Family (2018) 2018 94x ATS Known Issues (2018) 94x Form Family (2019) 2019 94x ATS Known Issues (2019) 1041 2018 1041 ATS Known Issues 990 Form Family/1120 POL 2018 990 ATS Known Issues XLS 7004 2018 7004 ATS Known Issues 8868 ZIP 2018 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
