If a transaction is a prohibited tax shelter transaction at the time any tax-exempt entity described in paragraph (1), (2), or (3) of subsection (c) becomes a party to the transaction, such entity shall pay a tax for the taxable year in which the entity becomes such a party and any subsequent taxable year in the amount determined under subsection (b)(1).
If any entity manager of a tax-exempt entity approves such entity as (or otherwise causes such entity to be) a party to a prohibited tax shelter transaction at any time during the taxable year and knows or has reason to know that the transaction is a prohibited tax shelter transaction, such manager shall pay a tax for such taxable year in the amount determined under subsection (b)(2).
The term “listed transaction” has the meaning given such term by section 6707A(c)(2).
The term “subsequently listed transaction” means any transaction to which a tax-exempt entity is a party and which is determined by the Secretary to be a listed transaction at any time after the entity has become a party to the transaction. Such term shall not include a transaction which is a prohibited reportable transaction at the time the entity became a party to the transaction.
The Secretary is authorized to promulgate regulations which provide guidance regarding the determination of the allocation of net income or proceeds of a tax-exempt entity attributable to a transaction to various periods, including before and after the listing of the transaction or the date which is 90 days after the date of the enactment of this section.