Information at Source (a) Payments of $600 or more — All persons engaged in a trade or business and making payment in the course of such trade or business to another person, of rent, salaries, wages, premiums, annuities, compensations, remunerations, emoluments, or other fixed or determinable gains, profits, and income (other than payments to which section 6042(a)(1), 6044(a)(1), 6047(e)...