Skip to main content

Tax year 2027 schemas and business rules for employment tax Modernized e-File (MeF) forms

 

The tables below provide links to the tax year 2027 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 2027 documents

Tax year 2027 Form 94xX (quarterly forms)

VersionAvailable dateATS datesProduction datesComments

2027Q1v1.0

2027Q2v1.0

2027Q3v1.0

2027Q4v1.0

05/28/2026

Start: 10/13/2026

End: 10/31/2026

Not valid for productionBusiness rule change page available 08/13/2026

2027Q1v2.0

2027Q2v2.0

2027Q3v2.0

2027Q4v2.0

09/24/2026

Start: 11/01/2026

End: TBD

Start: TBD

End: TBD

 

*Note: The available dates are projected and subject to change. The version numbers may not be immediately available. Please check the schema and business rule page for any updates.

94xX online signature PIN registration application

VersionAvailable dateATS datesProduction dates
CUv3.309/24/2026Start:11/01/2026Start:TBD
CUv3.205/28/2026Start: TBDStart: TBD
CUv3.104/24/2025Start: 06/01/2025Start: 06/22/2025
CUv3.005/17/2018Start: 10/29/2018Start: 01/08/2019

Form 9465

VersionAvailable dateATS datesProduction dates
CUv30.009/24/2026Start: 11/01/2026Start: TBD
CUv29.007/02/2026

Start: 10/13/2026

End: 10/31/2026

Start: Not valid for production
CUv28.105/28/2026Not valid for ATSNot valid for production
CUv28.007/16/2025

Start: 10/14/2025

End: 10/12/2026

Start: 01/13/2026

End:  TBD


Schemas and business rules for employment tax Modernized e-File (MeF) forms

Modernized e-File (MeF) program information

Tax year 2027 schemas and business rules for employment tax Modernized e-File (MeF) forms