(Slip Opinion) OCTOBER TERM, 2007 1
Syllabus
NOTE: Where it is feasible, a syllabus (headnote) will be released, as is
being done in connection with this case, at the time the opinion is issued.
The syllabus constitutes no part of the opinion of the Court but has been
prepared by the Reporter of Decisions for the convenience of the reader.
See United States v. Detroit Timber & Lumber Co., 200 U. S. 321, 337.
SUPREME COURT OF THE UNITED STATES
Syllabus
KNIGHT, TRUSTEE OF WILLIAM L. RUDKIN
TESTAMENTARY TRUST v. COMMISSIONER
OF INTERNAL REVENUE
CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR
THE SECOND CIRCUIT
No. 06–1286. Argued November 27, 2007—Decided January 16, 2008
Individuals may subtract from their federal taxable income certain
itemized deductions, 26 U. S. C. §63(d), but only to the extent the de
ductions exceed 2% of adjusted gross income, §67(a). A trust may
also take such deductions subject to the 2% floor, §67(e), except that
when the relevant cost is “paid or incurred in connection with the
administration of the . . . trust” and “would not have been incurred if
the property were not held in such trust,” the cost may be deducted
without regard to the floor, §67(e)(1). After petitioner Knight (Trus
tee), the trustee of a testamentary trust (Trust), hired the Warfield
firm to advise as to Trust investments, the Trust deducted in full on
its fiduciary income tax return the investment advisory fees paid to
Warfield. Respondent Commissioner found the fees subject to the 2%
floor and therefore allowed the deduction only to the extent the fees
exceeded 2% of the Trust’s adjusted gross income. The Tax Court de
cided for the Commissioner, and the Second Circuit affirmed, holding
that because such fees were costs of a type that could be incurred if
the property were held individually rather than in trust, their deduc
tion by the Trust was subject to the 2% floor.
Held: Investment advisory fees generally are subject to the 2% floor
when incurred by a trust. Pp. 5–13.
(a) In asking whether a particular type of cost incurred by a trust
“would not have been incurred” if the property were held by an indi
vidual, §67(e)(1) excepts from the 2% floor only those costs that it
would be uncommon (or unusual, or unlikely) for such a hypothetical
individual to incur. The question whether a trust-related expense is
2 KNIGHT v. COMMISSIONER
Syllabus
fully deductible turns on a prediction about what would happen if a
fact were changed—specifically, if the property were held by an indi
vidual rather than by a trust. Predictions are based on what would
customarily or commonly occur. Thus, in the context of making such
a prediction, when there is uncertainty about the answer, the word
“would” is best read to express concepts such as custom, habit, natu
ral disposition, or probability. Although the statutory text does not
expressly ask whether expenses are “customarily” incurred outside of
trusts, that is the direct import of the language in context. The Sec
ond Circuit’s approach, which asks whether the cost at issue could
have been incurred by an individual, flies in the face of the statutory
language. Had Congress intended the Court of Appeals’ reading, it
easily could have replaced “would” with “could” in §67(e)(1), and pre
sumably would have. The Trustee’s argument that the proper in
quiry is whether a particular expense of a particular trust was
caused by the fact that the property was held in trust fails because
the statute by its terms does not establish a straightforward causa
tion test, but instead looks to the counterfactual question whether an
individual would have incurred such costs in the absence of a trust.
Further, under the Trustee’s approach, every trust-related expense
would be fully deductible, thus allowing the exception to the 2% floor
in §67(e)(1) to swallow the general rule. Pp. 5–10.
(b) The Trust’s investment advisory fees are subject to the 2% floor.
The Trustee—who has the burden of establishing entitlement to the
deduction, see, e.g., INDOPCO, Inc. v. Commissioner, 503 U. S. 79,
84—has not demonstrated that it is uncommon or unusual for indi
viduals to hire an investment adviser. His argument is that indi
viduals cannot incur trust investment advisory fees, not that indi
viduals do not commonly incur investment advisory fees. Indeed, his
essential point is that he engaged an investment adviser because of
his fiduciary duties under Connecticut law, which requires a trustee
to invest and manage trust assets “as a prudent investor would.”
This prudent investor standard plainly does not refer to a prudent
trustee, but looks instead to what a prudent investor with the same
investment objectives handling his own affairs would do—i.e., a pru
dent individual investor. Because a hypothetical prudent investor in
petitioner’s position would reasonably have solicited investment ad
vice, it is quite difficult to say that the investment advisory fees
“would not have been incurred”—i.e., that it would be unusual or un
common for such fees to have been incurred—if the property were
held by an individual investor with the same objectives as the Trust
in handling his own affairs. While Congress’s decision to phrase the
pertinent inquiry in terms of a prediction about a hypothetical situa
tion inevitably entails some uncertainty, that is no excuse for judicial
Cite as: 552 U. S. ____ (2008) 3
Syllabus
amendment of the statute. The Code elsewhere poses similar ques
tions, see, e.g., §§162(a), 212, and the inquiry is in any event what
§67(e)(1) requires. Although some trust-related investment advisory
fees may be fully deductible if an investment adviser were to impose
a special, additional charge applicable only to its fiduciary accounts,
there is nothing in the record to suggest that Warfield did so, or
treated the Trust any differently than it would have treated an indi
vidual with similar objectives, because of the Trustee’s fiduciary obli
gations. Nor does the Trust assert that its investment objectives or
balancing of competing interests were so distinctive that any com
parison with those of an individual investor would be improper.
Pp. 10–13.
467 F. 3d 149, affirmed.
ROBERTS, C. J., delivered the opinion for a unanimous Court.
Cite as: 552 U. S. ____ (2008) 1
Opinion of the Court
NOTICE: This opinion is subject to formal revision before publication in the
preliminary print of the United States Reports. Readers are requested to
notify the Reporter of Decisions, Supreme Court of the United States, Wash
ington, D. C. 20543, of any typographical or other formal errors, in order
that corrections may be made before the preliminary print goes to press.
SUPREME COURT OF THE UNITED STATES
_________________
No. 06–1286
_________________
MICHAEL J. KNIGHT, TRUSTEE OF THE WILLIAM L.
RUDKIN TESTAMENTARY TRUST, PETITIONER
v. COMMISSIONER OF INTERNAL REVENUE
ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF
APPEALS FOR THE SECOND CIRCUIT
[January 16, 2008]
CHIEF JUSTICE ROBERTS delivered the opinion of the
Court.
Under the Internal Revenue Code, individuals may
subtract from their taxable income certain itemized deduc
tions, but only to the extent the deductions exceed 2% of
adjusted gross income. A trust may also claim those
deductions, also subject to the 2% floor, except that costs
incurred in the administration of the trust, which would
not have been incurred if the trust property were not held
by a trust, may be deducted without regard to the floor. In
the case of individuals, investment advisory fees are sub
ject to the 2% floor; the question presented is whether
such fees are also subject to the floor when incurred by a
trust. We hold that they are and therefore affirm the
judgment below, albeit for different reasons than those
given by the Court of Appeals.
I
The Internal Revenue Code imposes a tax on the “tax
able income” of both individuals and trusts. 26 U. S. C.
§1(a). The Code instructs that the calculation of taxable
2 KNIGHT v. COMMISSIONER
Opinion of the Court
income begins with a determination of “gross income,”
capaciously defined as “all income from whatever source
derived.” §61(a). “Adjusted gross income” is then calcu
lated by subtracting from gross income certain “above-the
line” deductions, such as trade and business expenses and
losses from the sale or exchange of property. §62(a).
Finally, taxable income is calculated by subtracting from
adjusted gross income “itemized deductions”—also known
as “below-the-line” deductions—defined as all allowable
deductions other than the “above-the-line” deductions
identified in §62(a) and the deduction for personal exemp
tions allowed under §151 (2000 ed. and Supp. V). §63(d)
(2000 ed.).
Before the passage of the Tax Reform Act of 1986, 100
Stat. 2085, below-the-line deductions were deductible in
full. This system resulted in significant complexity and
potential for abuse, requiring “extensive [taxpayer] re
cordkeeping with regard to what commonly are small
expenditures,” as well as “significant administrative and
enforcement problems for the Internal Revenue Service.”
H. R. Rep. No. 99–426, p. 109 (1985).
In response, Congress enacted what is known as the “2%
floor” by adding §67 to the Code. Section 67(a) provides
that “the miscellaneous itemized deductions for any taxable
year shall be allowed only to the extent that the aggregate
of such deductions exceeds 2 percent of adjusted gross
income.” The term “miscellaneous itemized deductions” is
defined to include all itemized deductions other than cer
tain ones specified in §67(b). Investment advisory fees are
deductible pursuant to 26 U. S. C. §212. Because §212 is
not listed in §67(b) as one of the categories of expenses
that may be deducted in full, such fees are “miscellaneous
itemized deductions” subject to the 2% floor. 26 CFR §1.67–
1T(a)(1)(ii) (2007).
Section 67(e) makes the 2% floor generally applicable
Cite as: 552 U. S. ____ (2008) 3
Opinion of the Court
not only to individuals but also to estates and trusts,1 with
one exception relevant here. Under this exception, “the
adjusted gross income of an estate or trust shall be com
puted in the same manner as in the case of an individual,
except that . . . the deductions for costs which are paid or
incurred in connection with the administration of the
estate or trust and which would not have been incurred if
the property were not held in such trust or estate . . . shall
be treated as allowable” and not subject to the 2% floor.
§67(e)(1).
Petitioner Michael J. Knight is the trustee of the Wil
liam L. Rudkin Testamentary Trust, established in the
State of Connecticut in 1967. In 2000, the Trustee hired
Warfield Associates, Inc., to provide advice with respect to
investing the Trust’s assets. At the beginning of the tax
year, the Trust held approximately $2.9 million in mar
ketable securities, and it paid Warfield $22,241 in invest
ment advisory fees for the year. On its fiduciary income
tax return for 2000, the Trust reported total income of
$624,816, and it deducted in full the investment advisory
fees paid to Warfield. After conducting an audit, respon
dent Commissioner of Internal Revenue found that these
investment advisory fees were miscellaneous itemized
deductions subject to the 2% floor. The Commissioner
therefore allowed the Trust to deduct the investment
advisory fees, which were the only claimed deductions
subject to the floor, only to the extent that they exceeded
2% of the Trust’s adjusted gross income. The discrepancy
resulted in a tax deficiency of $4,448.
The Trust filed a petition in the United States Tax
Court seeking review of the assessed deficiency. It argued
that the Trustee’s fiduciary duty to act as a “prudent
investor” under the Connecticut Uniform Prudent Investor
——————
1 Because this case is only about trusts, we generally refer to trusts
throughout, but the analysis applies equally to estates.
4 KNIGHT v. COMMISSIONER
Opinion of the Court
Act, Conn. Gen. Stat. §§45a–541a to 45a–541l (2007),2
required the Trustee to obtain investment advisory ser
vices, and therefore to pay investment advisory fees. The
Trust argued that such fees are accordingly unique to
trusts and therefore fully deductible under 26 U. S. C.
§67(e)(1). The Tax Court rejected this argument, holding
that §67(e)(1) allows full deductibility only for expenses
that are not commonly incurred outside the trust setting.
Because investment advisory fees are commonly incurred
by individuals, the Tax Court held that they are subject to
the 2% floor when incurred by a trust. Rudkin Testamen
tary Trust v. Commissioner, 124 T. C. 304, 309–311 (2005).
The Trust appealed to the United States Court of Ap
peals for the Second Circuit. The Court of Appeals con
cluded that, in determining whether costs such as invest
ment advisory fees are fully deductible or subject to the
2% floor, §67(e) “directs the inquiry toward the counterfac
tual condition of assets held individually instead of in
trust,” and requires “an objective determination of
whether the particular cost is one that is peculiar to trusts
and one that individuals are incapable of incurring.” 467
F. 3d 149, 155, 156 (2006). The court held that because
investment advisory fees were “costs of a type that could
be incurred if the property were held individually rather
than in trust,” deduction of such fees by the Trust was
subject to the 2% floor. Id., at 155–156.
——————
2 Forty-four
States and the District of Columbia have adopted ver
sions of the Uniform Prudent Investor Act. See 7B U. L. A. 1–2 (2006)
(listing States that have enacted the Uniform Prudent Investor Act).
Five of the remaining six States have adopted their own versions of the
prudent investor standard. See Del. Code Ann., Tit. 12, §3302 (1995 ed.
and 2006 Supp.); Ga. Code Ann. §53–12–287 (1997); La. Stat. Ann.
§9:2127 (West 2005); Md. Est. & Trusts Code Ann. §15–114 (Lexis
2001); S. D. Codified Laws §55–5–6 (2004). Kentucky, the only remain
ing State, applies the prudent investor standard only in certain circum
stances. See Ky. Rev. Stat. Ann. §286.3–277 (Lexis 2007 Cum. Supp.);
§§386.454(1), 386.502 (Supp. 2007).
Cite as: 552 U. S. ____ (2008) 5
Opinion of the Court
The Courts of Appeals are divided on the question pre
sented. The Sixth Circuit has held that investment advi
sory fees are fully deductible. O’Neill v. Commissioner,
994 F. 2d 302, 304 (1993). In contrast, both the Fourth
and Federal Circuits have held that such fees are subject
to the 2% floor, because they are “commonly” or “custom
arily” incurred outside of trusts. See Scott v. United
States, 328 F. 3d 132, 140 (CA4 2003); Mellon Bank, N. A.
v. United States, 265 F. 3d 1275, 1281 (CA Fed. 2001).
The Court of Appeals below came to the same conclusion,
but as noted announced a more exacting test, allowing
“full deduction only for those costs that could not have
been incurred by an individual property owner.” 467
F. 3d, at 156 (emphasis added). We granted the Trustee’s
petition for certiorari to resolve the conflict, 551 U. S. __
(2007), and now affirm.
II
“We start, as always, with the language of the statute.”
Williams v. Taylor, 529 U. S. 420, 431 (2000). Section
67(e) sets forth a general rule: “[T]he adjusted gross in
come of [a] . . . trust shall be computed in the same man
ner as in the case of an individual.” That is, trusts can
ordinarily deduct costs subject to the same 2% floor that
applies to individuals’ deductions. Section 67(e) provides
for an exception to the 2% floor when two conditions are
met. First, the relevant cost must be “paid or incurred in
connection with the administration of the . . . trust.”
§67(e)(1). Second, the cost must be one “which would not
have been incurred if the property were not held in such
trust.” Ibid.
In applying the statute, the Court of Appeals below
asked whether the cost at issue could have been incurred
by an individual.3 This approach flies in the face of the
——————
3 The Solicitor General embraces this position in this Court, arguing
6 KNIGHT v. COMMISSIONER
Opinion of the Court
statutory language. The provision at issue asks whether
the costs “would not have been incurred if the property
were not held” in trust, ibid., not, as the Court of Appeals
would have it, whether the costs “could not have been
incurred” in such a case, 467 F. 3d, at 156. The fact that
an individual could not do something is one reason he
would not, but not the only possible reason. If Congress
had intended the Court of Appeals’ reading, it easily could
have replaced “would” in the statute with “could,” and
presumably would have. The fact that it did not adopt
this readily available and apparent alternative strongly
supports rejecting the Court of Appeals’ reading.4
——————
that the Court of Appeals’ approach represents the best reading of the
statute and establishes an easily administrable rule. See Brief for
Respondent 17–20, 22. Indeed, after the Court of Appeals’ decision, the
Commissioner adopted that court’s reading of the statute in a proposed
regulation. See Section 67 Limitations on Estates or Trusts, 72 Fed.
Reg. 41243, 41245 (2007) (notice of proposed rulemaking) (a trust-
related cost is exempted from the 2% floor only if “an individual could
not have incurred that cost in connection with property not held in an
estate or trust” (emphasis added)). The Government did not advance
this argument before the Court of Appeals. See Brief for Appellee in
No. 05–5151–AG (CA2), pp. 3–4, 22–24. In fact, the notice of proposed
rulemaking appears to be the first time the Government has ever taken
this position, and we are the first Court to which the argument has
been made in a brief. See Brief for United States in Mellon Bank v.
United States, No. 01–5015 (CA Fed.), p. 27 (“[I]f a trust-related admin
istrative expense is also customarily or habitually incurred outside of
trusts, then it is subject to the two-percent floor”); Brief for United
States in Scott v. United States, No. 02–1464 (CA4), p. 27 (same).
4 In pressing the Court of Appeals’ approach, the Solicitor General
argues that “to say that a team would not have won the game if it were
not for the quarterback’s outstanding play is to say that the team could
not have won without the quarterback.” Brief for Respondent 19. But
the Solicitor General simply posits the truth of a proposition—that the
team would not have won the game if it were not for the quarterback’s
outstanding play—and then states its equivalent. The statute, in
contrast, does not posit any proposition. Rather, it asks a question:
whether a particular cost would have been incurred if the property
were held by an individual instead of a trust.
Cite as: 552 U. S. ____ (2008) 7
Opinion of the Court
Moreover, if the Court of Appeals’ reading were correct,
it is not clear why Congress would have included in the
statute the first clause of §67(e)(1). If the only costs that
are fully deductible are those that could not be incurred
outside the trust context—that is, that could only be in
curred by trusts—then there would be no reason to place
the further condition on full deductibility that the costs be
“paid or incurred in connection with the administration of
the . . . trust,” §67(e)(1). We can think of no expense that
could be incurred exclusively by a trust but would never
theless not be “paid or incurred in connection with” its
administration.
The Trustee argues that the exception in §67(e)(1) “es
tablishes a straightforward causation test.” Brief for
Petitioner 22. The proper inquiry, the Trustee contends, is
“whether a particular expense of a particular trust or
estate was caused by the fact that the property was held
in the trust or estate.” Ibid. Investment advisory fees
incurred by a trust, the argument goes, meet this test
because these costs are caused by the trustee’s obligation
“to obtain advice on investing trust assets in compliance
with the Trustees’ particular fiduciary duties.” Ibid. We
reject this reading as well.
On the Trustee’s view, the statute operates only to
distinguish costs that are incurred by virtue of a trustee’s
fiduciary duties from those that are not. But all (or nearly
all) of a trust’s expenses are incurred because the trustee
has a duty to incur them; otherwise, there would be no
reason for the trust to incur the expense in the first place.
See G. Bogert & G. Bogert, Law of Trusts and Trustees
§801, p. 134 (2d rev. ed. 1981) (“[T]he payment for ex
penses must be reasonably necessary to facilitate admini
stration of the trust”). As an example of a type of trust-
related expense that would be subject to the 2% floor, the
Trustee offers “expenses for routine maintenance of real
property” held by a trust. Brief for Petitioner 23. But
8 KNIGHT v. COMMISSIONER
Opinion of the Court
such costs would appear to be fully deductible under the
Trustee’s own reading, because a trustee is obligated to
incur maintenance expenses in light of the fiduciary duty
to maintain trust property. See 1 Restatement (Second) of
Trusts §176, p. 381 (1957) (“The trustee is under a duty to
the beneficiary to use reasonable care and skill to preserve
the trust property”).
Indeed, the Trustee’s formulation of its argument is
circular: “Trust investment advice fees are caused by the
fact the property is held in trust.” Brief for Petitioner 19.
But “trust investment advice fees” are only aptly described
as such because the property is held in trust; the statute
asks whether such costs would be incurred by an individ
ual if the property were not. Even when there is a clearly
analogous category of costs that would be incurred by
individuals, the Trustee’s reading would exempt most or
all trust costs as fully deductible merely because they
derive from a trustee’s fiduciary duty. Adding the modi
fier “trust” to costs that otherwise would be incurred by an
individual surely cannot be enough to escape the 2% floor.
What is more, if the Trustee’s position were correct,
then only the first clause of §67(e)(1)—providing that the
cost be “incurred in connection with the administration of
the . . . trust”—would be necessary. The statute’s second,
limiting condition—that the cost also be one “which would
not have been incurred if the property were not held in
such trust”—would do no work; we see no difference in
saying, on the one hand, that costs are “caused by” the fact
that the property is held in trust and, on the other, that
costs are incurred “in connection with the administration”
of the trust. Thus, accepting the Trustee’s approach
“would render part of the statute entirely superfluous,
something we are loath to do.” Cooper Industries, Inc. v.
Aviall Services, Inc., 543 U. S. 157, 166 (2004).
The Trustee’s reading is further undermined by our
inclination, “[i]n construing provisions . . . in which a
Cite as: 552 U. S. ____ (2008) 9
Opinion of the Court
general statement of policy is qualified by an exception,
[to] read the exception narrowly in order to preserve the
primary operation of the provision.” Commissioner v.
Clark, 489 U. S. 726, 739 (1989). As we have said, §67(e)
sets forth a general rule for purposes of the 2% floor estab
lished in §67(a): “For purposes of this section, the adjusted
gross income of an estate or trust shall be computed in the
same manner as in the case of an individual.” Under the
Trustee’s reading, §67(e)(1)’s exception would swallow the
general rule; most (if not all) expenses incurred by a trust
would be fully deductible. “Given that Congress has en
acted a general rule . . . , we should not eviscerate that
legislative judgment through an expansive reading of a
somewhat ambiguous exception.” Ibid.
More to the point, the statute by its terms does not
“establis[h] a straightforward causation test,” Brief for
Petitioner 22, but rather invites a hypothetical inquiry
into the treatment of the property were it held outside a
trust. The statute does not ask whether a cost was in
curred because the property is held by a trust; it asks
whether a particular cost “would not have been incurred if
the property were not held in such trust,” §67(e)(1). “Far
from examining the nature of the cost at issue from the
perspective of whether it was caused by the trustee’s
duties, the statute instead looks to the counterfactual
question of whether individuals would have incurred such
costs in the absence of a trust.” Brief for Respondent 9.
This brings us to the test adopted by the Fourth and
Federal Circuits: Costs incurred by trusts that escape the
2% floor are those that would not “commonly” or “customar
ily” be incurred by individuals. See Scott, 328 F. 3d, at 140
(“Put simply, trust-related administrative expenses are
subject to the 2% floor if they constitute expenses commonly
incurred by individual taxpayers”); Mellon Bank, 265 F. 3d,
at 1281 (§67(e) “treats as fully deductible only those trust-
related administrative expenses that are unique to the
10 KNIGHT v. COMMISSIONER
Opinion of the Court
administration of a trust and not customarily incurred
outside of trusts”). The Solicitor General also accepts this
view as an alternative reading of the statute. See Brief for
Respondent 20–21. We agree with this approach.
The question whether a trust-related expense is fully
deductible turns on a prediction about what would happen
if a fact were changed—specifically, if the property were
held by an individual rather than by a trust. In the con
text of making such a prediction, when there is uncer
tainty about the answer, the word “would” is best read as
“express[ing] concepts such as custom, habit, natural
disposition, or probability.” Scott, supra, at 139. See
Webster’s Third New International Dictionary 2637–2638
(1993); American Heritage Dictionary 2042, 2059 (3d ed.
1996). The Trustee objects that the statutory text “does
not ask whether expenses are ‘customarily’ incurred out
side of trusts,” Reply Brief for Petitioner 15, but that is the
direct import of the language in context. The text requires
determining what would happen if a fact were changed;
such an exercise necessarily entails a prediction; and
predictions are based on what would customarily or com
monly occur. Thus, in asking whether a particular type of
cost “would not have been incurred” if the property were
held by an individual, §67(e)(1) excepts from the 2% floor
only those costs that it would be uncommon (or unusual,
or unlikely) for such a hypothetical individual to incur.
III
Having decided on the proper reading of §67(e)(1), we
come to the application of the statute to the particular
question in this case: whether investment advisory fees
incurred by a trust escape the 2% floor.
It is not uncommon or unusual for individuals to hire an
investment adviser. Certainly the Trustee, who has the
burden of establishing its entitlement to the deduction,
has not demonstrated that it is. See INDOPCO, Inc. v.
Cite as: 552 U. S. ____ (2008) 11
Opinion of the Court
Commissioner, 503 U. S. 79, 84 (1992) (noting the “ ‘famil
iar rule’ that ‘an income tax deduction is a matter of legis
lative grace and that the burden of clearly showing the
right to the claimed deduction is on the taxpayer’ ” (quot
ing Interstate Transit Lines v. Commissioner, 319 U. S.
590, 593 (1943))); Tax Court Rule 142(a)(1) (stating that
the “burden of proof shall be upon the petitioner,” with
certain exceptions not relevant here). The Trustee’s ar
gument is that individuals cannot incur trust investment
advisory fees, not that individuals do not commonly incur
investment advisory fees.
Indeed, the essential point of the Trustee’s argument is
that he engaged an investment adviser because of his
fiduciary duties under Connecticut’s Uniform Prudent
Investor Act, Conn. Gen. Stat. §45a–541a(a) (2007). The
Act eponymously requires trustees to follow the “prudent
investor rule.” See n. 2, supra. To satisfy this standard, a
trustee must “invest and manage trust assets as a prudent
investor would, by considering the purposes, terms, distri
bution requirements and other circumstances of the trust.”
§45a–541b(a) (emphasis added). The prudent investor
standard plainly does not refer to a prudent trustee; it
would not be very helpful to explain that a trustee should
act as a prudent trustee would. Rather, the standard
looks to what a prudent investor with the same invest
ment objectives handling his own affairs would do—i.e., a
prudent individual investor. See Restatement (Third) of
Trusts (Prudent Investor Rule) Reporter’s Notes on §227,
p. 58 (1990) (“The prudent investor rule of this Section has
its origins in the dictum of Harvard College v. Amory, 9
Pick. (26 Mass.) 446, 461 (1830), stating that trustees
must ‘observe how men of prudence, discretion, and intel
ligence manage their own affairs, not in regard to specula
tion, but in regard to the permanent disposition of their
funds, considering the probable income, as well as the
probable safety of the capital to be invested’ ”). See also,
12 KNIGHT v. COMMISSIONER
Opinion of the Court
e.g., In re Musser’s Estate, 341 Pa. 1, 9–10, 17 A. 2d 411,
415 (1941) (noting the “general rule” that “a trustee must
exercise such prudence and diligence in conducting the
affairs of the trust as men of average diligence and discre
tion would employ in their own affairs”). And we have no
reason to doubt the Trustee’s claim that a hypothetical
prudent investor in his position would have solicited in
vestment advice, just as he did. Having accepted all this,
it is quite difficult to say that investment advisory fees
“would not have been incurred”—that is, that it would be
unusual or uncommon for such fees to have been in
curred—if the property were held by an individual inves
tor with the same objectives as the Trust in handling his
own affairs.
We appreciate that the inquiry into what is common may
not be as easy in other cases, particularly given the absence
of regulatory guidance. But once you depart in the name of
ease of administration from the language chosen by Con
gress, there is more than one way to skin the cat: The
Trustee raises administrability concerns in support of his
causation test, Reply Brief for Petitioner 6, but so does the
Government in explaining why it prefers the Court of Ap
peals’ approach to the one it has successfully advanced
before the Tax Court and two Federal Circuits. Congress’s
decision to phrase the pertinent inquiry in terms of a pre
diction about a hypothetical situation inevitably entails
some uncertainty, but that is no excuse for judicial amend
ment of the statute. The Code elsewhere poses similar
questions—such as whether expenses are “ordinary,” see
§§162(a), 212; see also Deputy, Administratrix v. Du Pont,
308 U. S. 488, 495 (1940) (noting that “[o]rdinary has the
connotation of normal, usual, or customary”)—and the
inquiry is in any event what §67(e)(1) requires.
As the Solicitor General concedes, some trust-related
investment advisory fees may be fully deductible “if an
investment advisor were to impose a special, additional
Cite as: 552 U. S. ____ (2008) 13
Opinion of the Court
charge applicable only to its fiduciary accounts.” Brief for
Respondent 25. There is nothing in the record, however,
to suggest that Warfield charged the Trustee anything
extra, or treated the Trust any differently than it would
have treated an individual with similar objectives, because
of the Trustee’s fiduciary obligations. See App. 24–27. It
is conceivable, moreover, that a trust may have an un
usual investment objective, or may require a specialized
balancing of the interests of various parties, such that a
reasonable comparison with individual investors would be
improper. In such a case, the incremental cost of expert
advice beyond what would normally be required for the
ordinary taxpayer would not be subject to the 2% floor.
Here, however, the Trust has not asserted that its invest
ment objective or its requisite balancing of competing
interests was distinctive. Accordingly, we conclude that
the investment advisory fees incurred by the Trust are
subject to the 2% floor.
The judgment of the Court of Appeals is affirmed.
It is so ordered.