Discretionary income is disposable income (after-tax income), minus all payments that are necessary to meet current bills. It is total personal income after subtracting taxes and minimal survival expenses (such as food, medicine, rent or
mortgage, utilities, insurance, transportation, property maintenance, child support, etc.) to maintain a certain
standard of living. Expenses that persist with zero income are termed
autonomous consumption. Discretionary income is the amount of an individual's income available for spending after the essentials have been taken care of: \text{Discretionary income} := (\text{Gross income} - \text{taxes}) - \text{all compelled payments} := (\text{Disposable income}) - \text{autonomous spending} The term "disposable income" is often incorrectly used to denote discretionary income. For example, people commonly refer to disposable income as the amount of "play money" left to spend or save. == In the national accounts ==