Wyoming Chapter 13 Calculation of Your Disposable Income is a process used by a Wyoming bankruptcy court to determine the amount of income that is available to creditors after your necessary living expenses have been paid. There are three types of Wyoming Chapter 13 Calculation of Your Disposable Income: the Means Test, the Formal Calculation of Disposable Income, and the Modified Disposable Income Calculation. The Means Test is used to determine if you qualify for a Chapter 13 bankruptcy. The Formal Calculation of Disposable Income is used to determine the amount of income you have available to pay creditors. The Modified Disposable Income Calculation is used to calculate the amount of money that you must pay under a Chapter 13 repayment plan.