)
or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
The tax year 2026 94x Modernized e-File (MeF) Assurance Testing System (ATS) information is contained below.
Separate testing is required for annual and quarterly 94x forms
If you have passed ATS for the tax year 2026 quarterly forms and you support the annual 94x Forms, you will need to contact the e-Help Desk to test the annual forms.
TY 2026 94x MeF quarterly forms ATS scenarios
- 94x MeF ATS scenario 1 (Form 941) PDF
- 94x MeF ATS scenario 2 (Form 941) PDF
- 94x MeF ATS scenario 3 (Form 941) PDF
- 94x MeF ATS scenario 4 (Form 941-X) 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)
Tax year 2026 schemas and business rules for employment tax Modernized e-File (MeF) forms