View all text of Subchapter A [§ 6601 - § 6603]
§ 6603. Deposits made to suspend running of interest on potential underpayments, etc.
(a) Authority to make deposits other than as payment of tax
(b) No interest imposed
(c) Return of deposit
(d) Payment of interest
(1) In general
(2) Disputable tax
(A) In general
(B) Safe harbor based on 30-day letter
(3) Other definitions
For purposes of paragraph (2)—
(A) Disputable item
The term “disputable item” means any item of income, gain, loss, deduction, or credit if the taxpayer—
(i) has a reasonable basis for its treatment of such item, and
(ii) reasonably believes that the Secretary also has a reasonable basis for disallowing the taxpayer’s treatment of such item.
(B) 30-day letter
(4) Rate of interest
(e) Use of deposits
(1) Payment of tax
(2) Returns of deposits
(Added Pub. L. 108–357, title VIII, § 842(a), Oct. 22, 2004, 118 Stat. 1598; amended Pub. L. 116–25, title I, § 1001(b)(1)(D), July 1, 2019, 133 Stat. 985.)