(1)    A savings bank may be organized to exercise the powers conferred by this chapter with minimum capital, surplus and reserves for operating expenses as determined by the division. The division may not establish requirements for savings banks at a level less than that required for insurance of accounts. For a savings bank other than one resulting from the conversion from an existing financial institution, the division may establish capital requirements at least as stringent as those required under s. 214.43 (1).

   (2)   A stock savings bank may not commence business until it has a paid-in surplus equal to 20 percent of its capital. The division may waive this requirement for a financial institution that converts to a savings bank.

   (3)   A stock financial institution seeking to convert to a savings bank under s. 214.66 (1m) shall, before declaring a dividend on its capital stock, transfer not less than 50 percent of its net profits of the preceding half year to its paid-in surplus until it has paid-in surplus equal to 20 percent of capital stock.