A Wisconsin Notice of Counterclaim is a legal document used in civil litigation in the state of Wisconsin. It is a formal document that is filed in response to a complaint or lawsuit, and is used to set out the defendant's response to the plaintiff's claims. It is typically used by defendants to raise their own claims against the plaintiff, such as counterclaims of breach of contract, negligence, or other causes of action. There are three main types of Wisconsin Notice of Counterclaim: (1) defensive counterclaims, which are used to challenge the plaintiff's claims; (2) compulsory counterclaims, which are used to bring up claims that are related to the plaintiff's claims; and (3) permissive counterclaims, which are used to bring up claims that are unrelated to the plaintiff's claims.