Instructions for Form 6251 (2025) cite 26 U.S.C. §56(b)(5)(D), which does not exist

The 2025 Instructions for Form 6251 say the enhanced deduction for seniors is treated as a personal exemption and added back to alternative minimum taxable income “as an adjustment under section 56(b)(5)(D)”. Section 56(b) has no paragraph (5); the disallowance of personal exemptions is in section 56(b)(1)(D).

Consequence

Citation only: the amount added back on the form is not affected.

Proposed correction

Cite section 56(b)(1)(D), subject to the publisher's confirmation.

Jurisdiction

United States — federal

Act

IRS, Instructions for Form 6251 (2025)

Place

Instructions for Form 6251 (2025), page 1, “Enhanced deduction for seniors”

Record

Discrepancy

Class

Publication and consolidation

Where it arose

The official program or service

Arxo's conclusion

Confirmed

Official text

Unchanged at last check

Last checked

2026-10-24

Evidence

Contradiction within the text. Quotations are verbatim from the official material; translations are ours and marked.

The deduction is treated as a personal exemption that is added back to alternative minimum taxable income as an adjustment under section 56(b)(5)(D).

The standard deduction under section 63(c), the deduction for personal exemptions under section 151, and the deduction under section 642(b) shall not be allowed.

How to check it without Arxo's tools

1. Open IRS, Instructions for Form 6251 (2025) and find Instructions for Form 6251 (2025), page 1, Enhanced deduction for seniors. Compare the text with the quotation above. A copy is kept in this register: b130e87362006177-i6251-2025.pdf (SHA-256 b130e87362006177794ac29affd2637652cc4c8c03e54227891e2d1b9c976753, copy of the official file).
2. Open Office of the Law Revision Counsel, 26 U.S.C. §56 (online edition) and find 26 U.S.C. §56(b)(1)(D). Compare the text with the quotation above. A copy is kept in this register: 8ec358336644f294-irc56-live.html (SHA-256 8ec358336644f294c86c490ac70b3bfc943a75c2c95242c2e0fdb6bfd5121415, copy of the official file).
3. The finding holds if the quoted passages read as shown and the comparison gives the result stated at the top of this page. If it does not, write to us with the record ID.

How this finding was made

AI agents read the official texts, turned the provisions concerned into executable rules and ran the comparison; they also drafted this record. A person at Arxo checked the finding and approved the report before it was sent (2026-10-22).

Responsible institutions

• Internal Revenue Service, National Public Liaison — official IRS channel for the forms and instructions

Reported to

Responses

History

1. 2026-10-22Receipt confirmed: U.S. Government Accountability Office
2. 2026-10-22Reported to Office of the Law Revision Counsel, U.S. House of Representatives (e-mail)
3. 2026-10-22Reported to Joint Committee on Taxation (e-mail)
4. 2026-10-22Reported to Senate Committee on Finance (majority and minority tax staff) (e-mail)
5. 2026-10-22Reported to House Committee on Ways and Means (majority and minority tax staff) (e-mail)
6. 2026-10-22Reported to U.S. Department of the Treasury, Office of Tax Legislative Counsel (e-mail)
7. 2026-10-22Reported to Internal Revenue Service, National Public Liaison (e-mail)
8. 2026-10-22Reported to U.S. Government Accountability Office (e-mail)
9. 2026-10-24Confirmed by Arxo
10. 2026-10-25Entered in the register

Cite this record

Arxo Law, Arxo Findings Register, ARXO-2026-0002, https://arxo.io/findings/ARXO-2026-0002/ (status as of 2026-10-24). Data: ARXO-2026-0002.json.