Another section 6694, relating to failure to file information with respect to carryover basis property, which was added by Pub. L. 94–455, § 2005(d)(2), was renumbered section 6698 by Pub. L. 95–600, renumbered section 6698A by Pub. L. 96–222, and repealed by Pub. L. 96–223.

2007—Pub. L. 110–28, § 8246(a)(2)(F)(i)(I), substituted “tax return preparer” for “income tax return preparer” in section catchline.

Subsec. (a). Pub. L. 110–28, § 8246(b), amended heading and text of subsec. (a) generally. Prior to amendment, text read as follows: “If—

“(1) any part of any understatement of liability with respect to any return or claim for refund is due to a position for which there was not a realistic possibility of being sustained on its merits,

“(2) any person who is an income tax return preparer with respect to such return or claim knew (or reasonably should have known) of such position, and

“(3) such position was not disclosed as provided in section 6662 (d)(2)(B)(ii) or was frivolous,

Subsec. (b). Pub. L. 110–28, § 8246(b), amended heading and text of subsec. (b) generally. Prior to amendment, text read as follows: “If any part of any understatement of liability with respect to any return or claim for refund is due—

“(1) to a willful attempt in any manner to understate the liability for tax by a person who is an income tax return preparer with respect to such return or claim, or

“(2) to any reckless or intentional disregard of rules or regulations by any such person,

Subsec. (c)(1). Pub. L. 110–28, § 8246(a)(2)(F)(i)(II), substituted “a tax return preparer” for “an income tax return preparer”.

Subsec. (c)(2). Pub. L. 110–28, § 8246(a)(2)(F)(i)(III), substituted “the tax return preparer” for “the income tax return preparer”.

Subsec. (e). Pub. L. 110–28, § 8246(a)(2)(F)(i)(IV), substituted “this title” for “subtitle A”.

Subsec. (f). Pub. L. 110–28, § 8246(a)(2)(F)(i)(V), substituted “tax return preparer” for “income tax return preparer”.

1989—Subsec. (a). Pub. L. 101–239, § 7732(a), substituted “Understatements due to unrealistic positions” for “Negligent or intentional disregard of rules and regulations” in heading and amended text generally. Prior to amendment, text read as follows: “If any part of any understatement of liability with respect to any return or claim for refund is due to the negligent or intentional disregard of rules and regulations by any person who is an income tax return preparer with respect to such return or claim, such person shall pay a penalty of $100 with respect to such return or claim.”

Subsec. (b). Pub. L. 101–239, § 7732(a), substituted “Willful or reckless conduct” for “Willful understatement of liability” in heading and amended text generally. Prior to amendment, text read as follows: “If any part of any understatement of liability with respect to any return or claim for refund is due to a willful attempt in any manner to understate the liability for a tax by a person who is an income tax return preparer with respect to such return or claim, such person shall pay a penalty of $500 with respect to such return or claim. With respect to any return or claim, the amount of the penalty payable by any person by reason of this subsection shall be reduced by the amount of the penalty paid by such person by reason of subsection (a).”

Subsec. (c)(1). Pub. L. 101–239, § 7737(a), inserted at end “Nothing in this paragraph shall be construed to prohibit any counterclaim for the remainder of such penalty in a proceeding begun as provided in paragraph (2).”

Amendment by Pub. L. 110–28 applicable to returns prepared after May 25, 2007, see section 8246(c) of Pub. L. 110–28, set out as a note under section 6060 of this title.

Section 7732(b) of Pub. L. 101–239 provided that: “The amendment made by subsection (a) [amending this section] shall apply with respect to documents prepared after December 31, 1989.”