A Wisconsin Deficiency Claim (WDC) is a legal action available to Wisconsin creditors to recover an unpaid debt from a debtor. A WDC is initiated by filing a complaint in the circuit court where the debtor resides. The creditor must provide the court with proof of the debt, such as a copy of the contract or statement of account. If the court finds that a debt is owed, it will issue a judgment in favor of the creditor. There are three types of Wisconsin Deficiency Claims: open-ended deficiency claims, closed-ended deficiency claims, and non-deficiency claims. Open-ended deficiency claims are used when the debt is unknown or uncertain. Closed-ended deficiency claims are used when the debt is known, and the court will determine a specific amount that must be paid. Non-deficiency claims are used when the debt is known, but the court does not determine a specific amount that must be paid.