The following links provide information and technical guidance for Software Developers and Transmitters who are interested in developing software for the Modernized e-File (MeF) Form 1041. You will find the Extensible Markup Language (XML) Schemas, Business Rules, and other useful information separated by tax year.

Production and Assurance Testing System (ATS) - Current valid schema

Tax Year Form Type
2023 1041
2022 1041
2021 1041

Modernized e-File (MeF) schemas and business rules