The Tax Year 2021 Form 720 Modernized e-File (MeF) Assurance Testing System (ATS) information is contained below. If you support these Forms, you will need to contact the e-Help Desk for testing. Please monitor this page for any ATS Scenario updates. TY 2021 Form 720 MeF ATS Scenarios: 720 MeF ATS Scenario 1PDF 720 MeF ATS Scenario 2PDF 720 MeF ATS Scenario 3PDF For information and questions regarding ATS, please contact the e-help Desk at 1-866-255-0654. Modernized e-File (MeF) Assurance Testing System (ATS) Updates Page
