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Internal Revenue Code, § 7121. Closing Agreements

I.R.C. § 7121(a) Authorization
The Secretary is authorized to enter into an agreement in writing with any person relating to the liability of such person (or of the person or estate for whom he acts) in respect of any internal revenue tax for any taxable period.
I.R.C. § 7121(b) Finality
If such agreement is approved by the Secretary (within such time as may be stated in such agreement, or later agreed to) such agreement shall be final and conclusive, and, except upon a showing of fraud or malfeasance, or misrepresentation of a material fact--
I.R.C. § 7121(b)(1)
the case shall not be reopened as to the matters agreed upon or the agreement modified by any officer, employee, or agent of the United States, and
I.R.C. § 7121(b)(2)
in any suit, action, or proceeding, such agreement, or any determination, assessment, collection, payment, abatement, refund, or credit made in accordance therewith, shall not be annulled, modified, set aside, or disregarded.
(Aug. 16, 1954, ch. 736, 68A Stat. 849; Oct. 4, 1976, Pub. L. 94-455, title XIX, 1906(b)(13)(A), 90 Stat. 1834.)
Background Notes
Amendments
1976--Subsecs. (a), (b). Pub. L. 94-455 struck out “or his delegate” after “Secretary”.
Cross References
Deduction for deficiency dividends, see section 547 of this title.
Fraud and false statements, see section 7206 of this title.
Joint returns of income tax by husband and wife, see section 6013 of this title.
Mitigation of effect of limitations and other provisions, see section 1313 of this title.
Section Referred to in Other Sections
This section is referred to in sections 547, 860, 1313, 6013, 7206 of this title.