Wisconsin Statutes Banking and Finance (Ch. 214 to 225) § 214.43. Capital maintenance

(1) A savings bank shall maintain total capital of not less than 6 percent of total assets. This is the minimum capital level acceptable for a savings bank that is well-managed and whose overall financial condition is fundamentally sound. If the division determines that the financial condition or history, management or earnings prospects of a savings bank are not adequate, the division may require a higher minimum capital level for the savings bank.

(2) A savings bank shall maintain total capital necessary to ensure the continuation of insurance of its deposit accounts by a deposit insurance corporation.

(3) The board of directors may establish and maintain specific reserves, as it considers to be advisable, to provide for losses or liabilities. Losses may be charged to those reserves as the board of directors may determine.