Any person who is a licensed real estate salesperson or an associate real estate broker, affiliated with licensed real estate broker or a licensed insurance agent affiliated with a licensed insurance agency, under written agreement, remunerated on a commission only basis and who qualifies as an independent contractor for state tax purposes or for federal tax purposes under the Internal Revenue Code of 1986 (Public Law 99-514, 26 U.S.C. § 1 ET seq.) is exempt from coverage under the Workers' Compensation Act.