View all text of Subjgrp 2 [§ 1.507-1 - § 1.509(e)-1]
§ 1.509(d)-1 - Definition of support.
For purposes of section 509(a)(2), the term support does not include amounts received in repayment of the principal of a loan or other indebtedness. See, however, section 509(e) as to amounts received as interest on a loan or other indebtedness.