(a) Intangible property and any income or increment derived therefrom held in a fiduciary capacity for the benefit of another person is presumed abandoned unless the owner, within five years after it has become payable or distributable, has increased or decreased the principal, accepted payment of principal or income, communicated concerning the property, or otherwise indicated an interest as evidenced by a memorandum or other record on file prepared by the fiduciary.

(b) Funds in an individual retirement account or a retirement plan for self-employed individuals or similar account or plan established pursuant to the internal revenue laws of the United States are not payable or distributable within the meaning of subsection (a) of this Code section unless, under the terms of the account or plan, distribution of all or part of the funds would then be mandatory.

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

(d) For the purposes of this article, 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.