Wis. Stat. § 563.80: Gross receipts tax.

(1) An occupational tax is imposed on those gross receipts of any licensed organization which are derived from the conduct of bingo, in the following amounts:

(a) One percent of the first $30,000 in gross receipts received by a licensed organization during a year.

(b) Two percent of the gross receipts received by a licensed organization during a year that exceed $30,000.

(2m) All moneys received under sub. (1) shall be credited to the appropriation account under s. 20.505 (8) (jn).