The tax year 2025 Form 8849 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 2025 Form 8849 MeF ATS scenarios:
- 8849 MeF ATS scenario 1 PDF
- 8849 MeF ATS scenario 2 PDF
- 8849 MeF ATS scenario 3 PDF
- 8849 MeF ATS scenario 4 PDF
- 8849 MeF ATS scenario 5 PDF
- 8849 MeF ATS scenario 6 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) updates page