Tax year 2023 94x MeF ATS information

The tax year 2023 94x Modernized e-File (MeF) Assurance Testing System (ATS) information is contained below.

TY 2023 94x MeF annual forms ATS scenarios

• 94x MeF ATS Scenario 1 (Form 940) PDF – 10/20/23
• 94x MeF ATS Scenario 2 (Form 940) PDF – 10/20/23
• 94x MeF ATS Scenario 3 (Form 940) PDF – 10/20/23
• 94x MeF ATS Scenario 5 (Form 943) PDF – 10/16/23
• 94x MeF ATS Scenario 6 (Form 943) PDF – 10/20/23
• 94x MeF ATS Scenario 7 (Form 943) PDF – 10/16/23
• 94x MeF ATS Scenario 9 (Form 944) PDF – 10/16/23
• 94x MeF ATS Scenario 10 (Form 944) PDF – 10/24/23
• 94x MeF ATS Scenario 11 (Form 945) PDF – 10/16/23
• 94x MeF ATS Scenario 12 (On-Line Signature PIN) PDF – Optional
• 94x MeF ATS Scenario 13 (Form 943-X) PDF – 05/29/2023

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 2023 94x MeF schemas and business rules