excess benefit transaction
(4) Authority to include certain other private inurement To the extent provided in regulations prescribed by the Secretary, the term “excess benefit transaction” includes any transaction in which the amount of any economic benefit provided to or for the use of a disqualified person is determined in whole or in part by the revenues of 1 or more activities of the organization but only if such transaction results in inurement not permitted under paragraph (3) or (4) of section 501(c), as the case may be. In the case of any such transaction, the excess benefit shall be the amount of the inurement not so permitted.