7702. Definitions. 7703. Corporations. 7704. Articles of incorporation. 7705. Capital stock. 7706.This method uses the current earnings, the 5 year average earnings and stockholder equity to determine the capital stock value. Capital stock is the number of common and preferred shares that a company is authorized to issue, and is recorded in shareholders' equity. Section 155.28 - Capital stock value methods-fixed formula (a)Prior methods inapplicable. Overview. The bank and trust company shares tax is imposed on every bank and trust company having capital stock and doing business in Pennsylvania.