26 CFR § 1.1366-3 - Treatment of family groups.
(a) In general. Under section 1366(e), if an individual, who is a member of the family of one or more shareholders of an S corporation, renders services for, or furnishes capital to, the corporation without receiving reasonable compensation, the Commissioner shall prescribe adjustments to those items taken into account by the individual and the shareholders as may be necessary to reflect the value of the services rendered or capital furnished. For these purposes, in determining the reasonable value for services rendered, or capital furnished, to the corporation, consideration will be given to all the facts and circumstances, including the amount that ordinarily would be paid in order to obtain comparable services or capital from a person (other than a member of the family) who is not a shareholder in the corporation. In addition, for purposes of section 1366(e), if a member of the family of one or more shareholders of the S corporation holds an interest in a passthrough entity (e.g., a partnership, S corporation, trust, or estate), that performs services for, or furnishes capital to, the S corporation without receiving reasonable compensation, the Commissioner shall prescribe adjustments to the passthrough entity and the corporation as may be necessary to reflect the value of the services rendered or capital furnished. For purposes of section 1366(e), the term family of any shareholder includes only the shareholder's spouse, ancestors, lineal descendants, and any trust for the primary benefit of any of these persons.
(b) Examples. The provisions of this section may be illustrated by the following examples: