If the reporting corporation brings an action under subparagraph (A) or (B), the running of any period of limitations under section
6501 (relating to assessment and collection of tax) or under section
6531 (relating to criminal prosecutions) with respect to any affected taxable year shall be suspended for the period during which such proceeding, and appeals therein, are pending. In no event shall any such period expire before the 90th day after the day on which there is a final determination in such proceeding. For purposes of this subparagraph, the term “affected taxable year” means any taxable year if the determination of the amount of tax imposed for such taxable year is affected by the treatment of the transaction to which the summons relates.