Chapter 1 — Normal taxes and surtaxes (Sections 1 to 1400Z-2)
Chapter 2 — Tax on Self-Employment Income (Sections 1401 to 1403)
Chapter 2A — Unearned Income Medicare Contribution (Section 1411)
Chapter 4 — Taxes to Enforce Reporting on Certain Foreign Accounts (Sections 1471 to 1474)
Chapter 5 — Tax on Transfers to Avoid Income Tax (Sections 1491 to 1494) [Repealed]
