Notice to shareholders of appeals and other proceedings.

Except as provided in s. 71.745, any notice of determination by the department of any tax-option item may be contested by a tax-option corporation under subch. XIV. A tax-option corporation shall timely notify all shareholders of any administrative or judicial proceeding about the determination of any tax-option item. Each shareholder may participate in any such proceeding and shall be bound by the final determination in that proceeding.