1099 noun 1verb 1forms 3 noun1 •(US) A form reporting one's nonemployment income from a given source for a year.Absolutely bewildered by the concept of taxes, he’d brought his 1099s to the nearest outpost of a national accounting chain to seek help. — 2023 verb1 •(US) To classify or pay someone as an independent contractor rather than as an employee. forms1099ed · 1099ing · 1099s
