disposable income

from the GNU version of the Collaborative International Dictionary of English.

• noun (Economics) that portion of income which is available for spending on discretionary purchases; for individuals, it is usually calculated as total income less taxes. National disposable income, which is the disposable income of all individuals and businesses, is calculated as total national income minus taxes plus transfer payments.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun economics The amount of a person's or group's monetary income which is available to be saved or spent (on either essential or non-essential items), after deducting all taxes and other governmental fees.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun income (after taxes) that is available to you for saving or spending