Tax year 2026 Form 7004 Modernized e-File (MeF) Assurance Testing System (ATS) Information

The tax year 2026 Form 7004 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.

Tax year 2026 Form 7004 MeF ATS scenarios 

• 7004 MeF ATS scenario 1 PDF
• 7004 MeF ATS scenario 2 PDF

For information and questions regarding ATS, please contact the e-Help Desk at 866-255-0654.

Modernized e-File (MeF) Assurance Testing System (ATS)