Freelance copywriters, especially those working in direct response copywriting, have potential to earn over average income. They are usually paid a fee plus a percentage cut of the sales they generate with their work. Take for instance, a sales copywriter might be offered $10,000 for writing a sales letter and also earning an additional 2 % of net sales. A copywriter’s annual earnings can be expected to be, at lowest, approximately $45,000 per annum, and at highest, around $71,000 per annum