Wisconsin

  
        Tax Type
        LLC (not taxed as corp)
            S Corporation
            C Corporation
        
        Filing Fee
        $170
         $100
         $100
      
        Franchise Tax
        comibned with state income tax 
         comibned with state income tax 
         comibned with state income tax 
        
        Annual Report
        $25 due last day of formation quarter
         $25 due last day of formation quarter
         $25 due last day of formation quarter
        
        State Income Tax
        None
         7.9%
         7.9%
        
        Revenue Tax
        None
         None
         None
        
        Tax Return Due Date
        Form 3 (if partnership) March 15
         Form 4 April 15
         Form 4 April 15

Tax Type	LLC (not taxed as corp)	S Corporation	C Corporation
Filing Fee	$170	$100	$100
Franchise Tax	comibned with state income tax	comibned with state income tax	comibned with state income tax
Annual Report	$25 due last day of formation quarter	$25 due last day of formation quarter	$25 due last day of formation quarter
State Income Tax	None	7.9%	7.9%
Revenue Tax	None	None	None
Tax Return Due Date	Form 3 (if partnership) March 15	Form 4 April 15	Form 4 April 15

To register an entity in Wisconsin first register with secretary of the state https://onestop.wi.gov. The process will take few days. The annual report must be filed through the same portal. The Wisconsin annual report is due on the last day of the quarter that the entity was formed. For example, if an entity was formed on April 7 2023, the annual report will be due on June 30 2024. Once the registration is complete the entity also needs to be registered with the department of the revenue https://tap.revenue.wi.gov/BTR/_/ to pay taxes. The annual tax return is due by April 15 of the following year.