The links provide information and technical guidance for software developers and transmitters who are interested in developing software for the Modernized e-File Forms 1120/1120S/1120F and 7004 for Tax Year (TY) 2007. Included are the XML Schemas, Business Rules, a Release Memorandum and specific instructions.

Developers and other Authorized IRS e-file Providers can find information on e-filing returns through MeF in the Publications 4163 and 4164. Test Scenarios for the 1120 family and the 7004 can be found in Publication 4162. (and 4162 Change Page).

XML Schemas, Business Rules and Memo - Throughout the year, multiple versions of these documents may be in use at the same time. Special attention should be paid to the Release Memo issue date and the projected start and end dates for Assurance Testing System and Production.

Stylesheets -- Form 1120/1120S/1120F stylesheets can be downloaded for use in displaying XML tax return data.

Link: Known e-file issues and solutions (TY 2007) 

Form 1120/1120F/1120S

Link to TY2007 Schemas, Business Rules, and Release Memo

Form 7004

Link to TY2007 Schemas, Business Rules, and Release Memo

Current Valid XML Schemas, Business Rules for 1120/1120S/1120F and 7004