rr-2010-25.pdf

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Part I

Section 163.—Interest

Rev. Rul. 2010-25

ISSUE
Whether indebtedness that is incurred by a taxpayer to acquire, construct, or
substantially improve a qualified residence can constitute “home equity indebtedness”
(within the meaning of § 163(h)(3)(C) of the Internal Revenue Code) to the extent it
exceeds $1 million.
FACTS
In 2009, an unmarried individual (Taxpayer) purchased a principal residence for
its fair market value of $1,500,000. Taxpayer paid $300,000 and financed the
remainder by borrowing $1,200,000 through a loan that is secured by the residence. In
2009, Taxpayer paid interest that accrued on the indebtedness during that year.
Taxpayer has no other debt secured by the residence.
LAW
Section 163(a) allows as a deduction all interest paid or accrued within the
taxable year on indebtedness. However, for individuals § 163(h)(1) disallows a

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deduction for personal interest. Under § 163(h)(2)(D), qualified residence interest is not
personal interest. Section 163(h)(3)(A) defines qualified residence interest as interest
paid or accrued during the taxable year on acquisition indebtedness or home equity
indebtedness secured by any qualified residence of the taxpayer. Under § 163(h)(4)(A),
“qualified residence” means a taxpayer’s principal residence, within the meaning of
§ 121, and one other residence selected and used by the taxpayer as a residence.
Section 163(h)(3)(B)(i) provides that acquisition indebtedness is any
indebtedness that is incurred in acquiring, constructing, or substantially improving a
qualified residence and is secured by the residence. However, § 163(h)(3)(B)(ii) limits
the amount of indebtedness treated as acquisition indebtedness to $1,000,000
($500,000 for a married individual filing separately). Accordingly, any indebtedness
described in § 163(h)(3)(B)(i) in excess of $1,000,000 is, by definition, not acquisition
indebtedness for purposes of § 163(h)(3).
Section 163(h)(3)(C)(i) provides that home equity indebtedness is any
indebtedness secured by a qualified residence other than acquisition indebtedness, to
the extent the fair market value of the qualified residence exceeds the amount of
acquisition indebtedness on the residence. However, § 163(h)(3)(C)(ii) limits the
amount of indebtedness treated as home equity indebtedness to $100,000 ($50,000 for
a married individual filing separately). Accordingly, any indebtedness described in
§ 163(h)(3)(C)(i) in excess of $100,000 is, by definition, not home equity indebtedness
for purposes of § 163(h)(3).

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In Pau v. Commissioner, T.C. Memo. 1997-43, the Tax Court limited the
taxpayers’ deduction for qualified residence interest to the interest paid on $1 million of
the $1.33 million indebtedness incurred to purchase their residence. The court stated
that § 163(h) restricts home mortgage interest deductions to interest paid on $1 million
of acquisition indebtedness and $100,000 of home equity indebtedness. Citing
§ 163(h)(3)(B), the court stated that acquisition indebtedness is defined as
indebtedness that is incurred in acquiring, constructing, or substantially improving any
qualified residence of the taxpayer, and is secured by the residence. Citing
§ 163(h)(3)(C), the court further stated that home equity indebtedness is defined as any
indebtedness (other than acquisition indebtedness) secured by a qualified residence.
The court concluded that the taxpayers failed to demonstrate that any of their debt was
not incurred in acquiring, constructing, or substantially improving their residence and
thus was not acquisition indebtedness. However, the court did not address the effect of
the $1 million limitation in § 163(h)(3)(B)(ii) on the definition of acquisition indebtedness
for purposes of § 163(h)(3). The Tax Court followed Pau
in Catalano v. Commissioner,
T.C. Memo. 2000-82.
ANALYSIS
Taxpayer may deduct, as interest on acquisition indebtedness under
§ 163(h)(3)(B), interest paid in 2009 on $1,000,000 of the $1,200,000 indebtedness
used to acquire the principal residence. The $1,200,000 indebtedness was incurred in
acquiring a qualified residence of Taxpayer and was secured by the residence. Thus,
indebtedness of $1,000,000 is treated as acquisition indebtedness under § 163(h)(3)(B).

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Taxpayer also may deduct, as interest on home equity indebtedness under
§ 163(h)(3)(C), interest paid in 2009 on $100,000 of the remaining indebtedness of
$200,000. The $200,000 is secured by the qualified residence, is not acquisition
indebtedness under § 163(h)(3)(B), and does not exceed the fair market value of the
residence reduced by the acquisition indebtedness secured by the residence. Thus,
$100,000 of the $200,000 is treated as home equity indebtedness under § 163(h)(3)(C).
Under § 163(h)(3)(A), the interest on both acquisition indebtedness and home
equity indebtedness is qualified residence interest. Therefore, for 2009 Taxpayer may
deduct interest paid on indebtedness of $1,100,000 as qualified residence interest. Any
interest Taxpayer paid on the remaining indebtedness of $100,000 is nondeductible
personal interest under § 163(h).
The Internal Revenue Service will not follow the decisions in Pau v.
Commissioner and Catalano v. Commissioner. The holding in Pau was based on the
incorrect assertion that taxpayers must demonstrate that debt treated as home equity
indebtedness “was not incurred in acquiring, constructing or substantially improving
their residence.” The definition of home equity indebtedness in § 163(h)(3)(C) contains
no such restrictions, and accordingly the Service will determine home equity
indebtedness consistent with the provisions of this revenue ruling, notwithstanding the
decisions in Pau
and Catalano.
HOLDING
Indebtedness incurred by a taxpayer to acquire, construct, or substantially
improve a qualified residence can constitute home equity indebtedness to the extent it

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exceeds $1 million (subject to the applicable dollar and fair market value limitations
imposed on home equity indebtedness by § 163(h)(3)(C)).
DRAFTING INFORMATION

The principal author of this revenue ruling is Sharon Hall of the Office of
Associate Chief Counsel (Income Tax & Accounting). For further information regarding
this revenue ruling, contact Ms. Hall at (202) 622-4950 (not a toll-free call).