Subject: Form 7004 Assurance Testing System

ATTN:Software Developers, Return Transmitters and Authorized IRS e-file Providers/EROs.

Form 7004 XML Schemas and Business Rules should be used according to the following schedule for ATS:

  • TY2010v2.1 may be used until 12-18-2011
  • TY2011v2.0 will be used beginning 12-19-2011.
Questions or comments may be directed to the e-help Desk at 1-866-255-0654.