From Longman Dictionary of Contemporary Englishfixed incomeˌfixed ˈincome noun [countable] an amount of money that you receive to live on that does not change pensioners living on a fixed income
Examples from the Corpus
fixed income• It is an illiquid asset which generates a fixed income depending on the stock's interest rate.• They pay a fixed income each year and promise to pay investors a set sum on a set date in the future.• Lower yields on fixed income securities make equities more attractive than money market instruments for many investors, analysts said.From Longman Business Dictionaryfixed incomeˌfixed ˈincome [countable, uncountable]FINANCE income that does not increase over time, for example from a PENSION or an ANNUITYwidows, retirees and others living on fixed incomes → income 