71.23 – Imposition of tax.
71.23 Imposition of tax. (1) Income tax. For the purpose of raising revenue for the state and the counties, cities, villages and towns, there shall be assessed, levied, collected and paid a tax as provided under this chapter on all Wisconsin net incomes of corporations that are not subject to the franchise tax under sub. […]
71.24 – Filing returns; extensions; payment of tax.
71.24 Filing returns; extensions; payment of tax. (1) Filing returns. Every corporation, except a corporation all of whose income is exempt from taxation and except as provided in sub. (1m), shall furnish to the department a true and accurate statement, on or before the date on which the corporation is required to file for federal […]