Debt instrument.
Debt instrument. Except as provided in section 1275(a)(1)(B) (relating to certain annuity contracts; see paragraph (j) of this section), debt instrument means any instrument or contractual arrangement that constitutes indebtedness under general principles of Federal income tax law (including, for example, a certificate of deposit or a loan). Nothing in the regulations under sections 163(e), 483, and 1271 through 1275, however, shall influence whether an instrument constitutes indebtedness for Federal income tax purposes. See 1.3853 for rules that treat certain instruments that otherwise would be treated as indebtedness as stock for Federal tax purposes.