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Information and technical guidance for software developers and transmitters who are interested in developing software for the Modernized e-File (MeF) Form 1041 for tax year (TY) 2024. Included are the Extensible Markup Language (XML) schemas, business rules, release memorandum, and specific instructions.

2023 XML schemas and business rules for Form 1041 Modernized e-File (MeF)

MeF internet filing is available for Corporate, Employment, Estates & Trusts, Exempt Organization, Excise, Individual, and Partnerships Tax Returns.

IRS e-file and electronic payment options for employment taxes, information returns, partnerships, corporations, estates & trusts and returns for charities and nonprofit organizations.

View specifications and form layouts for bar coding Schedules K-1 (Form 1041, 1065, and 1120S).

Find links to MeF form-specific information.

Test Scenarios for Schedule K-1 2D Bar Codes

Frequently Asked Questions: E-file Requirements for Specified Tax Return Preparers (sometimes referred to as the e-file mandate)

Modernized e-File (MeF) Assurance Testing System (ATS) information is provided to keep you up-to-date on the latest news and status of issues.

Find out what tax forms can be e-filed through the MeF system.