Tax year 2024, form 1040 Modernized e-File (MeF) Assurance Testing System (ATS) information is outlined below. If you support these forms, you will need to contact the e-Help Desk for testing. Please monitor this page for any tax year 2024, form 1040 series and extensions ATS scenario updates. ATS opened on Oct. 28, 2024 Tax year 2024 Form 1040 series and extensions MeF ATS scenarios 1040 MeF ATS scenario 2 PDF (Form 1040) - 10/8/2024 1040 MeF ATS scenario 3 PDF (Form 1040) - 10/8/2024 1040 MeF ATS scenario 5 PDF (Form 1040) - 11/5/2024 1040 MeF ATS scenario 6 PDF (Form 1040-SS) - 10/8/2024 1040 MeF ATS scenario 7 PDF (Form 1040) - 10/8/2024 1040 MeF ATS scenario 1 PDF (Form 1040-NR) - 10/8/2024 1040 MeF ATS scenario 2 PDF (Form 1040-NR) - 10/8/2024 1040 MeF ATS scenario 3 PDF (Form 1040-NR) - 10/8/2024 1040 MeF ATS scenario 4 PDF (Form 1040-NR) - 10/8/2024 1040 MeF ATS scenario 12 PDF (Form 1040-NR) – 11/18/2024 1040 MeF ATS scenario 1 PDF (Form 1040-SR) - 10/8/2024 For information and questions regarding ATS, please contact the e-Help Desk at 866-255-0654. Modernized e-File (MeF) Assurance Testing System (ATS) Tax year 2024 Modernized e-File schema and business rules for individual tax returns and extensions
