Wisconsin Chapter 13 Calculation of Your Disposable Income is a process by which an individual debtor's monthly disposable income is determined. This calculation is used to determine the amount of money that will be required to be paid into a Chapter 13 Bankruptcy Plan. The calculation involves subtracting expenses from income to determine the amount of disposable income available to the debtor for repayment of debts. There are two types of Wisconsin Chapter 13 Calculation of Disposable Income: the Means Test and the Budget-Based Calculation. The Means Test involves subtracting certain expenses from the debtor's income to determine the amount of disposable income available for repayment. The Budget-Based Calculation involves subtracting actual expenses from the debtor's income to determine the amount of disposable income available for repayment.