The following links provide information and technical guidance for Software Developers and Transmitters who are interested in developing software for the Modernized e-File Individual Tax Return Program. You will find XML Schemas, Business Rules, and other useful information and documents by tax year.
Production & Acceptance Testing System (ATS) Schemas and Business Rules by Tax Year
|2020||1040, 1040-NR, 1040-PR, 1040-SS, 4868, 2350, 9465, 56|
|2019||1040, 1040-NR, 1040-PR, 1040-SS, 4868, 2350, 9465, 56|
|2018||1040, 1040NR, 1040SS(PR), 4868, 2350, 9465, 56|
|2017||1040, 1040A, 1040EZ, 1040NR, 1040SS(PR), 4868, 2350, 9465, 56|
Tax Year test scenarios are provided in Publication 1436.
Individual Tax Return and Extensions stylesheets can be downloaded for use in displaying XML tax return data and are located on the MeF Stylesheets page.
- A Send Submissions sample can be found in Section 4.3.1 of the MeF State and Trading Partners ICD, which is located on the MeF User Guides and Publications page.