The plan need not pay unsecured claims in full as long it provides that the debtor will pay all projected "disposable income" over an "applicable commitment period," and as long as unsecured creditors receive at least as much under the plan as they would receive if the debtor's assets were liquidated under chapter 7. In chapter 13, "disposable income" is income (other than child support payments received by the debtor) less amounts reasonably necessary for the maintenance or support of the debtor or dependents and less charitable contributions up to 15% of the debtor's gross income.

If the debtor operates a business, the definition of disposable income excludes those amounts which are necessary for ordinary operating expenses. The "applicable commitment period" depends on the debtor's current monthly income.

The applicable commitment period must be three years if current monthly income is less than the state median for a family of the same size—and five years if the current monthly income is greater than a family of the same size. The plan may be less than the applicable commitment period (three or five years) only if unsecured debt is paid in full over a shorter period.

In Washington state, under Chapter 13 bankruptcy, a repayment plan does not have to fully satisfy unsecured debts if it meets certain conditions. The plan must commit all of the debtor's projected 'disposable income' over a set period, known as the 'applicable commitment period,' to repay creditors. 'Disposable income' is defined as the debtor's income minus necessary expenses for maintenance or support of the debtor and dependents, and allowable charitable contributions. For business owners, 'disposable income' does not include funds needed for ordinary business expenses. The length of the 'applicable commitment period' is determined by the debtor's current monthly income relative to the state median for a comparable household size: three years if it is less, or five years if it is more. However, the plan period can be shorter than the 'applicable commitment period' if the unsecured debt is paid off in full in less time.