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.
Wisconsin has state sales tax of 5.00%, and allows local governments to collect a local option sales tax of up to 0.60%. There are a total of 66 local tax jurisdictions across the state, collecting an average local tax of 0.442%. Click here for a larger sales tax map, or here for a sales tax table. Combined with the state sales tax, the highest sales tax rate in Wisconsin is 5.60% in the cities of Milwaukee, West Bend, Franklin, Oak Creek and Thiensville (and 22 other cities).