From Longman Dictionary of Contemporary Englishprivate incomeˌprivate ˈincome noun [countable, uncountable] BFMONEYmoney that someone gets regularly, not from working but because they own part of a business or have money which earns interest
Examples from the Corpus
private income• As I got up Terry looked at me as if I'd just announced I had a private income.• It was to be revolution not on the rates but on a private income.• An ample private income allowed him time to indulge his tastes for writing, politics, and rowing.• She will also consider pruning the number of royals who receive tax-payers' support - and paying tax on her private income.• Remembering the other woman's private income, Loretta made only a faint protest.• She had a small private income which was sufficient for her needs.• Substantial private income augmented by vast salary and royalties from books Twittish behaviour: Pretty sound, by and large.From Longman Business Dictionaryprivate incomeˌprivate ˈincome [countable, uncountable]FINANCE money that someone gets from investments rather than from workingThe government has promised to lower taxation on private income. → income 