[Code of Federal Regulations]
[Title 26, Volume 13]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR]

[Page 512-516]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
Procedure and Administration--Table of Contents
 
Sec.  1.6664-4  Reasonable cause and good faith exception to section 
6662 penalties.

    (a) In general. No penalty may be imposed under section 6662 with 
respect to any portion of an underpayment upon a showing by the taxpayer 
that there was reasonable cause for, and the taxpayer acted in good 
faith with respect to, such portion. Rules for determining whether the 
reasonable cause and good faith exception applies are set forth in 
paragraphs (b) through (h) of this section.
    (b) Facts and circumstances taken into account--(1) In general. The 
determination of whether a taxpayer acted with reasonable cause and in 
good faith is made on a case-by-case basis, taking into account all 
pertinent facts and circumstances. (See paragraph (e) of this section 
for certain rules relating to a substantial understatement penalty 
attributable to tax shelter items of corporations.) Generally, the most 
important factor is the extent of the taxpayer's effort to assess the 
taxpayer's proper tax liability. Circumstances that may indicate 
reasonable cause and good faith include an honest misunderstanding of 
fact or law that is reasonable in light of all of the facts and 
circumstances, including the experience, knowledge, and education of the 
taxpayer. An isolated computational or transcriptional error generally 
is not inconsistent with reasonable cause and good faith. Reliance on an 
information return or on the advice of a professional tax advisor or an 
appraiser does not necessarily demonstrate reasonable cause and good 
faith. Similarly, reasonable cause and good faith is not necessarily 
indicated by reliance on facts that, unknown to the taxpayer, are 
incorrect. Reliance on an information return, professional advice, or 
other facts, however, constitutes reasonable cause and good faith if, 
under all the circumstances, such reliance was reasonable and the 
taxpayer acted in good faith. (See paragraph (c) of this section for 
certain rules relating to reliance on the advice of others.) For 
example, reliance on erroneous information (such as an error relating to 
the cost or adjusted basis of property, the date property was placed in 
service, or the amount of opening or closing inventory) inadvertently 
included in data compiled by the various divisions of a multidivisional 
corporation or in financial books and records prepared by those 
divisions generally indicates reasonable cause and good faith, provided 
the corporation employed internal controls and procedures, reasonable 
under the circumstances, that were designed to identify such factual 
errors. Reasonable cause and good faith ordinarily is not indicated by 
the mere fact that there is an appraisal of the value of property. Other 
factors to consider include the methodology and assumptions underlying 
the appraisal, the appraised value, the relationship between appraised 
value and purchase price, the circumstances under which the appraisal 
was obtained, and the appraiser's relationship to the taxpayer or to the 
activity in which the property is used. (See paragraph (g) of this 
section for certain rules relating to appraisals for charitable 
deduction property.) A taxpayer's reliance on erroneous information 
reported on a Form W-2, Form 1099, or other information return indicates 
reasonable cause and good faith, provided the taxpayer did not know or 
have reason to know that the information was incorrect. Generally, a 
taxpayer knows, or has reason to know, that the information on an 
information return is incorrect if such information is inconsistent with 
other information reported or otherwise furnished to the taxpayer, or 
with the taxpayer's knowledge of the transaction. This knowledge 
includes, for example, the taxpayer's knowledge of the terms of his 
employment relationship or of the rate of return on a payor's 
obligation.

[[Page 513]]

    (2) Examples. The following examples illustrate this paragraph (b). 
They do not involve tax shelter items. (See paragraph (e) of this 
section for certain rules relating to the substantial understatement 
penalty attributable to the tax shelter items of corporations.)

    Example 1. A, an individual calendar year taxpayer, engages B, a 
professional tax advisor, to give A advice concerning the deductibility 
of certain state and local taxes. A provides B with full details 
concerning the taxes at issue. B advises A that the taxes are fully 
deductible. A, in preparing his own tax return, claims a deduction for 
the taxes. Absent other facts, and assuming the facts and circumstances 
surrounding B's advice and A's reliance on such advice satisfy the 
requirements of paragraph (c) of this section, A is considered to have 
demonstrated good faith by seeking the advice of a professional tax 
advisor, and to have shown reasonable cause for any underpayment 
attributable to the deduction claimed for the taxes. However, if A had 
sought advice from someone that A knew, or should have known, lacked 
knowledge in the relevant aspects of Federal tax law, or if other facts 
demonstrate that A failed to act reasonably or in good faith, A would 
not be considered to have shown reasonable cause or to have acted in 
good faith.
    Example 2. C, an individual, sought advice from D, a friend who was 
not a tax professional, as to how C might reduce his Federal tax 
obligations. D advised C that, for a nominal investment in Corporation 
X, D had received certain tax benefits which virtually eliminated D's 
Federal tax liability. D also named other investors who had received 
similar benefits. Without further inquiry, C invested in X and claimed 
the benefits that he had been assured by D were due him. In this case, C 
did not make any good faith attempt to ascertain the correctness of what 
D had advised him concerning his tax matters, and is not considered to 
have reasonable cause for the underpayment attributable to the benefits 
claimed.
    Example 3. E, an individual, worked for Company X doing odd jobs and 
filling in for other employees when necessary. E worked irregular hours 
and was paid by the hour. The amount of E's pay check differed from week 
to week. The Form W-2 furnished to E reflected wages for 1990 in the 
amount of $29,729. It did not, however, include compensation of $1,467 
paid for some hours E worked. Relying on the Form W-2, E filed a return 
reporting wages of $29,729. E had no reason to know that the amount 
reported on the Form W-2 was incorrect. Under the circumstances, E is 
considered to have acted in good faith in relying on the Form W-2 and to 
have reasonable cause for the underpayment attributable to the 
unreported wages.
    Example 4. H, an individual, did not enjoy preparing his tax returns 
and procrastinated in doing so until April 15th. On April 15th, H 
hurriedly gathered together his tax records and materials, prepared a 
return, and mailed it before midnight. The return contained numerous 
errors, some of which were in H's favor and some of which were not. The 
net result of all the adjustments, however, was an underpayment of tax 
by H. Under these circumstances, H is not considered to have reasonable 
cause for the underpayment or to have acted in good faith in attempting 
to file an accurate return.

    (c) Reliance on opinion or advice--(1) Facts and circumstances; 
minimum requirements. All facts and circumstances must be taken into 
account in determining whether a taxpayer has reasonably relied in good 
faith on advice (including the opinion of a professional tax advisor) as 
to the treatment of the taxpayer (or any entity, plan, or arrangement) 
under Federal tax law. For example, the taxpayer's education, 
sophistication and business experience will be relevant in determining 
whether the taxpayer's reliance on tax advice was reasonable and made in 
good faith. In no event will a taxpayer be considered to have reasonably 
relied in good faith on advice (including an opinion) unless the 
requirements of this paragraph (c)(1) are satisfied. The fact that these 
requirements are satisfied, however, will not necessarily establish that 
the taxpayer reasonably relied on the advice (including the opinion of a 
tax advisor) in good faith. For example, reliance may not be reasonable 
or in good faith if the taxpayer knew, or reasonably should have known, 
that the advisor lacked knowledge in the relevant aspects of Federal tax 
law.
    (i) All facts and circumstances considered. The advice must be based 
upon all pertinent facts and circumstances and the law as it relates to 
those facts and circumstances. For example, the advice must take into 
account the taxpayer's purposes (and the relative weight of such 
purposes) for entering into a transaction and for structuring a 
transaction in a particular manner. In addition, the requirements of 
this paragraph (c)(1) are not satisfied if the taxpayer fails to 
disclose a fact that it knows, or reasonably should know, to be relevant 
to the proper tax treatment of an item.

[[Page 514]]

    (ii) No unreasonable assumptions. The advice must not be based on 
unreasonable factual or legal assumptions (including assumptions as to 
future events) and must not unreasonably rely on the representations, 
statements, findings, or agreements of the taxpayer or any other person. 
For example, the advice must not be based upon a representation or 
assumption which the taxpayer knows, or has reason to know, is unlikely 
to be true, such as an inaccurate representation or assumption as to the 
taxpayer's purposes for entering into a transaction or for structuring a 
transaction in a particular manner.
    (iii) Reliance on the invalidity of a regulation. A taxpayer may not 
rely on an opinion or advice that a regulation is invalid to establish 
that the taxpayer acted with reasonable cause and good faith unless the 
taxpayer adequately disclosed, in accordance with Sec.  1.6662-3(c)(2), 
the position that the regulation in question is invalid.
    (2) Advice defined. Advice is any communication, including the 
opinion of a professional tax advisor, setting forth the analysis or 
conclusion of a person, other than the taxpayer, provided to (or for the 
benefit of) the taxpayer and on which the taxpayer relies, directly or 
indirectly, with respect to the imposition of the section 6662 accuracy-
related penalty. Advice does not have to be in any particular form.
    (3) Cross-reference. For rules applicable to advisors, see e.g., 
Sec. Sec.  1.6694-1 through 1.6694-3 (regarding preparer penalties), 31 
CFR 10.22 (regarding diligence as to accuracy), 31 CFR 10.33 (regarding 
tax shelter opinions), and 31 CFR 10.34 (regarding standards for 
advising with respect to tax return positions and for preparing or 
signing returns).
    (d) Underpayments attributable to reportable transactions. If any 
portion of an underpayment is attributable to a reportable transaction, 
as defined in Sec.  1.6011-4(b) (or Sec.  1.6011-4T(b), as applicable), 
then failure by the taxpayer to disclose the transaction in accordance 
with Sec.  1.6011-4 (or Sec.  1.6011-4T, as applicable) is a strong 
indication that the taxpayer did not act in good faith with respect to 
the portion of the underpayment attributable to the reportable 
transaction.
    (e) Pass-through items. The determination of whether a taxpayer 
acted with reasonable cause and in good faith with respect to an 
underpayment that is related to an item reflected on the return of a 
pass-through entity is made on the basis of all pertinent facts and 
circumstances, including the taxpayer's own actions, as well as the 
actions of the pass-through entity.
    (f) Special rules for substantial understatement penalty 
attributable to tax shelter items of corporations--(1) In general; facts 
and circumstances. The determination of whether a corporation acted with 
reasonable cause and in good faith in its treatment of a tax shelter 
item (as defined in Sec.  1.6662-4(g)(3)) is based on all pertinent 
facts and circumstances. Paragraphs (f)(2), (3), and (4) of this section 
set forth rules that apply, in the case of a penalty attributable to a 
substantial understatement of income tax (within the meaning of section 
6662(d)), in determining whether a corporation acted with reasonable 
cause and in good faith with respect to a tax shelter item.
    (2) Reasonable cause based on legal justification--(i) Minimum 
requirements. A corporation's legal justification (as defined in 
paragraph (f)(2)(ii) of this section) may be taken into account, as 
appropriate, in establishing that the corporation acted with reasonable 
cause and in good faith in its treatment of a tax shelter item only if 
the authority requirement of paragraph (f)(2)(i)(A) of this section and 
the belief requirement of paragraph (f)(2)(i)(B) of this section are 
satisfied (the minimum requirements). Thus, a failure to satisfy the 
minimum requirements will preclude a finding of reasonable cause and 
good faith based (in whole or in part) on the corporation's legal 
justification.
    (A) Authority requirement. The authority requirement is satisfied 
only if there is substantial authority (within the meaning of Sec.  
1.6662-4(d)) for the tax treatment of the item.
    (B) Belief requirement. The belief requirement is satisfied only if, 
based on all facts and circumstances, the corporation reasonably 
believed, at the time the return was filed, that the tax treatment of 
the item was more likely

[[Page 515]]

than not the proper treatment. For purposes of the preceding sentence, a 
corporation is considered reasonably to believe that the tax treatment 
of an item is more likely than not the proper tax treatment if (without 
taking into account the possibility that a return will not be audited, 
that an issue will not be raised on audit, or that an issue will be 
settled)--
    (1) The corporation analyzes the pertinent facts and authorities in 
the manner described in Sec.  1.6662-4(d)(3)(ii), and in reliance upon 
that analysis, reasonably concludes in good faith that there is a 
greater than 50-percent likelihood that the tax treatment of the item 
will be upheld if challenged by the Internal Revenue Service; or
    (2) The corporation reasonably relies in good faith on the opinion 
of a professional tax advisor, if the opinion is based on the tax 
advisor's analysis of the pertinent facts and authorities in the manner 
described in Sec.  1.6662-4(d)(3)(ii) and unambiguously states that the 
tax advisor concludes that there is a greater than 50-percent likelihood 
that the tax treatment of the item will be upheld if challenged by the 
Internal Revenue Service. (For this purpose, the requirements of 
paragraph (c) of this section must be met with respect to the opinion of 
a professional tax advisor.)
    (ii) Legal justification defined. For purposes of this paragraph 
(e), legal justification includes any justification relating to the 
treatment or characterization under the Federal tax law of the tax 
shelter item or of the entity, plan, or arrangement that gave rise to 
the item. Thus, a taxpayer's belief (whether independently formed or 
based on the advice of others) as to the merits of the taxpayer's 
underlying position is a legal justification.
    (3) Minimum requirements not dispositive. Satisfaction of the 
minimum requirements of paragraph (f)(2) of this section is an important 
factor to be considered in determining whether a corporate taxpayer 
acted with reasonable cause and in good faith, but is not necessarily 
dispositive. For example, depending on the circumstances, satisfaction 
of the minimum requirements may not be dispositive if the taxpayer's 
participation in the tax shelter lacked significant business purpose, if 
the taxpayer claimed tax benefits that are unreasonable in comparison to 
the taxpayer's investment in the tax shelter, or if the taxpayer agreed 
with the organizer or promoter of the tax shelter that the taxpayer 
would protect the confidentiality of the tax aspects of the structure of 
the tax shelter.
    (4) Other factors. Facts and circumstances other than a 
corporation's legal justification may be taken into account, as 
appropriate, in determining whether the corporation acted with 
reasonable cause and in good faith with respect to a tax shelter item 
regardless of whether the minimum requirements of paragraph (f)(2) of 
this section are satisfied.
    (g) Tranactions between persons described in section 482 and net 
section 482 transfer price adjustments. [Reserved]
    (h) Valuation misstatements of charitable deduction property--(1) In 
general. There may be reasonable cause and good faith with respect to a 
portion of an underpayment that is attributable to a substantial (or 
gross) valuation misstatement of charitable deduction property (as 
defined in paragraph (h)(2) of this section) only if--
    (i) The claimed value of the property was based on a qualified 
appraisal (as defined in paragraph (h)(2) of this section) by a 
qualified appraiser (as defined in paragraph (h)(2) of this section); 
and
    (ii) In addition to obtaining a qualified appraisal, the taxpayer 
made a good faith investigation of the value of the contributed 
property.
    (2) Definitions. For purposes of this paragraph (h):
    Charitable deduction property means any property (other than money 
or publicly traded securities, as defined in Sec.  1.170A-13(c)(7)(xi)) 
contributed by the taxpayer in a contribution for which a deduction was 
claimed under section 170.
    Qualified appraisal means a qualified appraisal as defined in Sec.  
1.170A-13(c)(3).
    Qualified appraiser means a qualified appraiser as defined in Sec.  
1.170A-13(c)(5).
    (3) Special rules. The rules of this paragraph (h) apply regardless 
of whether Sec.  1.170A-13 permits a taxpayer

[[Page 516]]

to claim a charitable contribution deduction for the property without 
obtaining a qualified appraisal. The rules of this paragraph (h) apply 
in addition to the generally applicable rules concerning reasonable 
cause and good faith.

[T.D. 8381, 56 FR 67508, Dec. 31, 1991; T.D. 8381, 57 FR 6166, Feb. 20, 
1992, as amended by T.D. 8617, 60 FR 45666, Sept. 1, 1995; T.D. 8790, 63 
FR 66435, Dec. 2, 1998; T.D. 9109, 68 FR 75128, Dec. 30, 2003]