Vermont Chapter 13 Calculation of Your Disposable Income is the process of determining your available funds after subtracting required expenses from the total household income. This calculation is used to determine the amount of money that you can contribute to your Chapter 13 repayment plan. There are two types of calculations: the Vermont Means Test and the Vermont Disposable Income Calculation. The Means Test takes into account your current income and expenses to determine the amount of money you have available to contribute to your repayment plan. The Disposable Income Calculation is used if you have a large amount of non-exempt assets or if your current income is significantly higher than your average income over the six months prior to filing. This calculation uses your income and expenses over the past six months to determine the amount of money you have available to contribute to your repayment plan.