Current monthly income is defined in as the monthly average of the income received by the debtor (and the debtor's spouse in a joint case) during a defined six-month time period prior to the filing of the bankruptcy case. Some narrow classes of payments, for example, social security, are excluded from these figures. Notably, the average income may be higher or lower than the debtor's actual income at the time of filing for bankruptcy. This has led some commentators to refer to the bankruptcy code's "current monthly income" as "presumed income". If the debtor's debt is not primarily consumer debt, then the means test is inapplicable.