Tax Year 2021 Schemas and Business Rules for Employment Tax Modernized e-File (MeF) Forms

 

The tables below provide links to the Tax Year 2021 XML Schemas, Business Rules, and Release Memorandum for the Employment Tax Forms (Form 94x series).
Throughout the year, multiple versions of Schemas and Business Rules may be in use at the same time. The table reflects the effective dates in the Assurance Testing System (ATS) and Production System, for each version.

Tax Year 2021 Documents

Tax Year 2021 Form 941x (Quarterly Forms)

Version Available Date ATS Dates Production Dates
2021 v3.0 05/29/2021 Start: 06/20/2021
End: TBD
Start: 07/01/2021
End: TBD
2021v2.1 02/22/2021 Start: 03/07/2021
End: 06/20/2021
Start: 04/01/2021
End: 07/01/2021
2021v2.0 11/21/2020 Start: 12/13/2020
End: 06/20/2021
Start: 04/01/2021
End: 07/01/2021
2021v1.1 10/17/2020 Start: 11/22/2020
End: 12/12/2020
Not Valid for Production
2021v1.0 07/22/2020

Start: 11/02/2020
End: 12/12/2020

Not Valid for Production

94x Online Signature PIN Registration Application

Version Available Date ATS Dates Production Dates
CUv3.0 05/17/2018 Start: 10/29/2018
End: TBD
Start: 01/08/2019
End: TBD

Form 9465

Version Available Date ATS Dates Production Dates
CUv24.0 10/17/2020 Start: 11/22/2020
End: TBD
Start: 02/12/2021
End: TBD
CUv23.0 09/02/2020

Start: 11/02/2020
End: 11/21/2020

Not Valid for Production
CUv22.0 07/22/2020 Not Valid for ATS Not Valid for Production
CUv21.0 07/23/2019 Start: 11/04/2019
End: 11/01/2020
Start: 01/07/2020
End: 02/11/2021

Schemas and Business Rules for Employment Tax Modernized e-File (MeF) Forms

Modernized e-File (MeF) Program Information