(1)    Property and any income or increment derived from it held in a fiduciary capacity for the benefit of another person is presumed abandoned unless the owner, within 5 years after it has become payable or distributable, has increased or decreased the principal, accepted payment of principal or income, or otherwise indicated an interest as provided in s. 177.0210.

   (2)   Funds in an individual retirement account or a retirement plan for self-employed individuals or similar account or plan established pursuant to the U.S. internal revenue code are not payable or distributable within the meaning of sub. (1) unless, under the terms of the account or plan, distribution of all or part of the funds would then be mandatory.

   (3)   For the purpose of this section, a person who holds property as an agent for a business association is deemed to hold the property in a fiduciary capacity for that business association alone, unless the agreement between the holder and the business association provides otherwise.

   (4)   For the purposes of this section, a person who is deemed to hold property in a fiduciary capacity for a business association alone is the holder of the property only insofar as the interest of the business association in the property is concerned, and the business association is the holder of the property insofar as the interest of any other person in the property is concerned.