Examples of types of income which would cause an association to fail to meet the requirements of this paragraph if, in the aggregate, they equal or exceed 25 percent of gross income, are: The excess of gains over losses from sales of real property (other than foreclosed property); rental income (other than on foreclosed property and the portion of property used in the association's business); premiums, commissions, and fees (other than commitment fees) on loans which have never been held by the association; and insurance brokerage fees.
For purposes of this paragraph, gross income is also computed without regard to items of income which an association establishes arise out of transactions which are necessitated by exceptional circumstances and which are not undertaken as recurring business activities for profit. Thus, for example, an association would meet the investing in loans requirement if it can establish that it would otherwise fail to meet that requirement solely because of the receipt of a nonrecurring item of income due to exceptional circumstances. For this purpose, transactions necessitated by an excess of demand for loans over savings capital in the association's area are not to be deemed to be necessitated by exceptional circumstances. For purposes of paragraph (c)(3)(ii)(c) of this section, the term "sales of participations" means sales by an association of interests in loans, which sales meet the requirements of the regulations of the Federal Home Loan Bank Board relating to sales of participations, or which meet substantially equivalent requirements of State law or regulations relating to sales of participations.
other than obligations the interest on which is excludable from gross income under section 103 and the regulations thereunder.
26 C.F.R. §301.7701-13A