What is Aggregate Income?

Legal Definition
Aggregate income is the total of all incomes in an economy without adjustments for inflation, taxation, or types of double counting. Aggregate income is a form of GDP that is equal to Consumption expenditure plus net profits. 'Aggregate income' in economics is a broad conceptual term. It may express the proceeds from total output in the economy for producers of that output. There are a number of ways to measure aggregate income, but GDP is one of the best known and most widely used.
-- Wikipedia
Legal Definition
All incomes in the economy without inflation or taxes. Or combining a married couples incomes for joint taxes.