USC › Title 26 › §128726 U.S.C. § 1287Verified against govinfo.gov as of June 20, 2026View official text on govinfo.gov ↗Copy link(a)If any registration-required obligation is not in registered form, any gain on the sale or other disposition of such obligation shall be treated as ordinary income (unless the issuance of such obligation was subject to tax under section 4701).(b)For purposes of subsection (a)—(1)The term “registration-required obligation” has the meaning given to such term by section 163(f)(2).(2)The term “registered form” has the same meaning as when used in section 163(f).