Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Instructions for Form 1040
Request for Taxpayer Identification Number (TIN) and Certification
Request for Transcript of Tax Return


Employee's Withholding Allowance Certificate
Employer's Quarterly Federal Tax Return
Employers engaged in a trade or business who pay compensation
Installment Agreement Request

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS

Modernized e-File (MeF) Schemas and Business Rules

The following links provide XML (Extensible Markup Language) schema information, Business Rules (reject criteria), and related announcements for Software Developers and Transmitters who are interested in developing software for Modernized e-File (MeF).

Schema and Business Rule Distribution 

Schema and Business Rules are now available through the Registered User Portal and your e-services mailbox. Please refer to the MeF Status page for additional details and instructions.

Forms 1040/4868 Schemas and Business Rules

Forms 1120/1120-F/1120S/7004 Schemas and Business Rules

Forms 1120-POL/990/990-EZ/990-PF/8868 Schemas and Business Rules

Forms 1065/1065-B Schemas and Business Rules

Forms 2290/720/8849 Schemas and Business Rules

Form 1041 Schemas and Business Rules

Forms 94x Schemas and Business Rules

Please note: Form 7004 schemas and Business Rules are posted to with the Corporation schemas, however the 7004 schemas can be used when filing extensions for Partnership and certain Exempt Organization returns.

Known Issues and Solutions

Known Issues and Solutions are temporary workaround solutions to allow returns to be e-filed.  A separate Known Issue and Solutions file is available for each tax year.

State Return Information

Both federal and state returns must be submitted in IRS-approved XML format. Federal returns must conform to valid schema versions.  State returns must conform to the return structure specified by IRS and include elements defined for the specific state data. You can access the Corporate and Partnership State Master Schema on the TIGERS website.

Back to MeF Main Program Page

Back to Main e-File Page