During the administration of President George W. Bush, there was a controversy over the President's use of signing statements, which critics charged was unusually extensive and modified the meaning of statutes.
Wisconsin Filing Due Date: Corporation tax returns are due by March 15 â or by the 15 th day of the 3 rd month following the end of the taxable year (for fiscal year filers). Extended Deadline with Wisconsin Tax Extension: If you have an approved Federal tax extension (IRS Form 7004), your Wisconsin filing deadline will be automatically extended to 30 days past the Federal extension deadline.
1 Almost any full-year Wisconsin resident may be able to use Wisconsin e-file to file their 2008, 2009, 2010, 2011, 2012, 2013, and 2014 Wisconsin income tax returns. 2  You can use Wisconsin e-file UNLESS you meet any one of the following: 3  You are filing: