This paper discusses the concept of disposable income used in the MBM. Disposable income is a measure of the means available to a Canadian family to meet its basic needs and achieve a modest standard of living. The disposable income of families surveyed in the Canadian Income Survey (CIS) is compared to the cost of the MBM basket for the size of the family and the region, and families with disposable incomes below that cost are deemed to be living in poverty.