Software Developers Guide - Program Overview
The Wisconsin Department of Revenue began accepting state Corporate Franchise and Income Tax returns and corresponding schedules through the new IRS Modernized e-File (MeF) platform beginning in July 2006 for tax year 2005. A complete list of eligible forms and schedules is available on our website www.revenue.wi.gov/eserv/corp/2013/forms.html
Wisconsin will accept either linked or unlinked returns. Unlinked returns are similar to the state only returns in the legacy Fed/State program. In either case, Wisconsin requires a complete copy of the federal return be included with the state filing.
The transmission method will be a Web Service using Simple Object Access Protocol (SOAP) with attachments messaging. The return data will be formatted using Extensible Markup Language (XML). Authorized E-File providers, also known as Electronic Return Originators (ERO’s) can submit returns to the IRS MeF system for federal and state return processing. State returns can be submitted as a federal return with a state return attached, called a "Fed/State" return, or as a state return, known as a "State Only" submission. Each return (Fed/State or State Only) must be in a separate submission. Multiple submissions may be contained in a single message payload. Software developers must test with the department and receive confirmation prior to submitting live Fed/State or State Only returns.
Payment and refund options: We offer refund direct deposit capabilities and multiple options for making payments.
September 16, 2013
Updates were made to the code or formatting on this page as of July 24, 2014. This date does not reflect the effective date or any other date relating to the content of this page.