Sec. 28. Premium taxes and taxes on premiums paid for coverage of risks resident or located in Indiana by a purchasing group or any member of a purchasing group shall be:
(1) imposed at the same rate and subject to the same interest, fines, and penalties that apply to premium taxes and taxes on premiums paid for similar coverage from a similar insurance source by other insureds; and
(2) paid first by the insurance source, and if not by the insurance source, then by the insurance producer or broker for the purchasing group, and if not by the insurance producer or broker, then by the purchasing group, and if not by the purchasing group, then by each of its members.