The tables below provide links to the Tax Year 2021 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 2021 documents
- Tax Year 2021 94x MeF Accepted Forms and Schedules PDF
- Tax Year 2021 94x MeF ATS Information
- Tax Year 2021 94x MeF Forms and Attachment List XLSX
- Tax Year 2021 94x MeF Return Due Dates PDF
- Tax Year 2021 94x MeF Stylesheets
- Tax Year 2021 Known Issues and Solutions XLSX - Revised 03/26/2024
Tax year 2021 Form 94x (annual forms)
Version | Available Date | ATS Dates | Production Dates |
---|---|---|---|
2021v2.0 | 10/14/2021 | Start: 11/21/2021 End: TBD |
Business Rules Change Page dated 12/28/2023 |
Tax year 2021 Form 941x (quarterly forms)
Version | Available Date | ATS Dates | Production Dates |
---|---|---|---|
2021v3.0 | 05/29/2021 | Start: 06/20/2021 End: TBD |
Business Rules Change Page dated 12/28/2023 |
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 |
---|---|---|---|
CUv26.0 | 11/13/2023 | Start: 12/17/2023 End: TBD |
Start: 01/29/2024 End: TBD |
CUv27.0 | 06/06/2024 | Not valid in ATS | Not valid in production |
Schemas and business rules for Employment Tax Modernized e-File (MeF) Forms