Principal purpose of tax avoidance.
(1) Principal purpose of tax avoidance. Except as provided in paragraph (b) of this section, for purposes of part I of subchapter J, chapter 1 of the Internal Revenue Code, and section 6048, any property (within the meaning of paragraph (f) of this section) that is transferred to a United States person by another person (an intermediary) who has received property from a foreign trust will be treated as property transferred directly by the foreign trust to the United States person if the intermediary received the property from the foreign trust pursuant to a plan one of the principal purposes of which was the avoidance of United States tax.