The Tax Year 2018 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 2018 1040 Series and Extensions ATS scenario updates. Tax Year 2018 1040 Series and Extensions MeF ATS Scenarios 1040 MeF ATS Scenario 1PDF (Form 1040) – 09/26/29018 1040NR MeF ATS Scenario 1 (Form 1040NR)PDF – 09/26/2018 1040 MeF ATS Scenario 2PDF (Form 1040) – 12/11/2018 1040NR MeF ATS Scenario 2 (Form 1040NR)PDF – 01/16/2019 1040 MeF ATS Scenario 3PDF (Form 1040) – 11/05/2018 1040NR MeF ATS Scenario 3 (Form 1040NR)PDF – 12/19/2018 1040 MeF ATS Scenario 4PDF (Form 1040) – 09/26/2018 1040NR MeF ATS Scenario 4 (Form 1040NR)PDF – 01/23/2019 1040 MeF ATS Scenario 5PDF (Form 1040) – 09/26/2018 1040NR MeF ATS Scenario 5 (Form 1040NR)PDF – 09/26/2018 1040 MeF ATS Scenario 6PDF (Form 1040) – 12/19/2018 1040 MeF ATS Scenario 7PDF (Form 1040) – 09/26/2018 1040 MeF ATS Scenario 8PDF (Form 1040 SS(PR)) – 09/26/2018 1040 MeF ATS Scenario 9PDF (Form 1040) – 09/26/2018 1040 MeF ATS Scenario 10PDF (Form 1040) – 09/26/2018 1040 MeF ATS Scenario 11PDF (Form 1040) – 09/26/2018 1040 MeF ATS Scenario 12PDF (Form 1040) – 09/26/2018 1040 MeF ATS Scenario 13PDF (Form 2350) – 09/26/2018 1040 MeF ATS Scenario 14PDF (Payment Information) – 09/26/2018 1040 MeF ATS Scenario 15PDF (Form 9465) – 10/17/2018 1040 MeF ATS Scenario 16PDF (Form 56) – 09/26/2018 1040 MeF ATS Scenario 17PDF (Only Form 1040 scenario if supporting Forms 965, 965-A, and associated Form 965 schedules. Available for ATS testing on December 9, 2018 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) Tax Year 2018 Modernized eFile Schemas and Business Rules for Individual Tax Returns and Extensions