Tax year 2023 schemas and business rules for employment tax Modernized e-File (MeF) forms

 

The tables below provide links to the tax year 2023 Extensible Markup Language (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 2023 documents

Tax year 2023 Form 94x (annual forms)

Version Available date ATS dates Production dates Comments
2023v3.1 09/25/2025 Start: 11/02/2025 Start:TBD
End: TBD
 
2023v3.0 4/18/2024 Start: 06/02/2024
End: TBD
Start: 06/16/2024
End: TBD

Business Rules change page available 04/24/2025

Schema updates available 2/11/2025

Business Rules Change page available 2/11/2025

Business Rules Change page available 10/10/2024

2023v2.0 11/13/2023 Start: 12/17/2023
End: 06/01/2024
Start: 01/16/2024
End: 06/15/2024

Business Rules Change page available 02/08/2024

Business Rules Change page available 12/28/2023

2023v1.0 06/08/2023 Start: 10/23/2023
End: 12/16/2023
Not valid in production

Business Rules Change page available 08/30/2023

Business Rules Change page available 07/20/2023

Tax year 2023 Form 941x (quarterly forms)

Version
Available date
ATS dates Production dates Comments
2023Q1v2.2
2023Q2v2.2
2023Q3v2.2
2023Q4v2.2
09/25/2025 Start: 11/02/2025 Start: TBD
End: TBD
 
2023Q1v2.1
2023Q2v2.1
2023Q3v2.1
2023Q4v2.1
 
02/09/2023
Start: 03/05/2023
End: TBD
Start: 04/01/2023
End: TBD

Schema updates available 2/11/2025

Business Rules Change page available 2/11/2025

Business Rules Change page available 12/28/2023

2023Q1v2.0
2023Q2v2.0
2023Q3v2.0
2023Q4v2.0
11/14/2022
Start: 12/11/2022
End: TBD
Start: 04/01/2023
End: TBD
 
2023Q1v1.0
2023Q2v1.0
2023Q3v1.0
2023Q4v1.0
07/21/2022
Not valid in ATS
Not valid in production  

94x online signature PIN registration application

Version
Available date
ATS dates Production dates
CUv3.0 05/17/2018 Start: 10/29/2018 Start: 01/08/2019

Form 9465

Version Available date
ATS dates
Production dates
CUv26.0 11/13/2023 Start: 12/17/2023 Start: 01/29/2024
CUv27.0 06/06/2024 Start: 10/28/2025 Start: 01/25/2025

Schemas and business rules for Employment Tax Modernized e-File (MeF) forms

Modernized e-File (MeF) program information