Developed software must:

  • Adhere to all federal and state procedures, requirements and specifications. These requirements are specified in IRS Publication 4164, Modernized e-File Guide for Software Developers and Transmitters and in the Wisconsin MeF Software Vendor Operating Agreement.
  • Successfully complete all testing.
  • Be developed in accordance with statutory requirements and department return preparation instructions.
  • Provide accurate Wisconsin Corporate tax returns in correct electronic format.
  • Provide data validation, verification, and error detection to prevent transmission of incomplete, inaccurate, or invalid return information.
  • Software provider must be available to correct any software errors, which may occur after production begins, and work with the department to follow up on any processing issues that may arise during filing season. If software providers need to re-release corrected software it should be done in a timely manner and proper notification should be made to all customers.
  • Software providers must include electronic signature information in their software. A statement notifying taxpayers of the following should be included in the software directly before the taxpayer submits the return:

Under penalties of law, I declare by submitting this return that I have personally examined this return, including any accompanying schedules and statements, and to the best of my knowledge and belief, it is true, correct and complete.

  • Software Providers wishing to participate in electronic filing in Wisconsin are required to submit a signed Letter of Intent prior to gaining access to schemas or test scenarios. Please email DORDeveloperRelations@wisconsin.gov for further information. List MeF Participation in the subject line.

August 28, 2015