[Code of Federal Regulations]
[Title 26, Volume 1]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.179-1]

[Page 217-220]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.179-1  Election to expense certain depreciable assets.

    (a) In general. Section 179(a) allows a taxpayer to elect to expense 
the cost (as defined in Sec. 1.179-4(d)), or a portion of the cost, of 
section 179 property (as defined in Sec. 1.179-4(a)) for the taxable 
year in which the property is placed in service (as defined in Sec. 
1.179-4(e)). The election is not available for trusts, estates, and 
certain noncorporate lessors. See paragraph (i)(2) of this section for 
rules concerning noncorporate lessors. However, section 179(b) provides 
certain limitations on the amount that a taxpayer may elect to expense 
in any one taxable year. See Sec. Sec. 1.179-2 and 1.179-3 for rules 
relating to the dollar and taxable income limitations and the carryover 
of disallowed deduction rules. For rules describing the time and manner 
of making an election under section 179, see Sec. 1.179-5. For the 
effective date, see Sec. 1.179-6.
    (b) Cost subject to expense. The expense deduction under section 179 
is allowed for the entire cost or a portion of the cost of one or more 
items of section 179 property. This expense deduction is subject to the 
limitations of section 179(b) and Sec. 1.179-2. The taxpayer may select 
the properties that are subject to the election as well as the portion 
of each property's cost to expense.
    (c) Proration not required--(1) In general. The expense deduction 
under section 179 is determined without any proration based on--
    (i) The period of time the section 179 property has been in service 
during the taxable year; or
    (ii) The length of the taxable year in which the property is placed 
in service.
    (2) Example. The following example illustrates the provisions of 
paragraph (c)(1) of this section.

    Example. On December 1, 1991, X, a calendar-year corporation, 
purchases and places in service section 179 property costing $20,000. 
For the taxable year ending December 31, 1991, X may elect to claim a 
section 179 expense deduction on the property (subject to the 
limitations imposed under section 179(b)) without proration of its cost 
for the number of days in 1991 during which the property was in service.

    (d) Partial business use--(1) In general. If a taxpayer uses section 
179 property for trade or business as well as other purposes, the 
portion of the cost of the property attributable to the trade or 
business use is eligible for expensing under section 179 provided that 
more than 50 percent of the property's use in the taxable year is for 
trade or business purposes. The limitations of section179(b) and Sec. 
1.179-2 are applied to the portion of the cost attributable to the trade 
or business use.
    (2) Example. The following example illustrates the provisions of 
paragraph (d)(1) of this section.


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    Example. A purchases section 179 property costing $10,000 in 1991 
for which 80 percent of its use will be in A's trade or business. The 
cost of the property adjusted to reflect the business use of the 
property is $8,000 (80 percent x $10,000). Thus, A may elect to expense 
up to $8,000 of the cost of the property (subject to the limitations 
imposed under section 179(b) and Sec. 1.179-2).

    (3) Additional rules that may apply. If a section 179 election is 
made for ``listed property'' within the meaning of section 280F(d)(4) 
and there is personal use of the property, section 280F(d)(1), which 
provides rules that coordinate section 179 with the section 280F 
limitation on the amount of depreciation, may apply. If section 179 
property is no longer predominantly used in the taxpayer's trade or 
business, paragraphs (e) (1) through (4) of this section, relating to 
recapture of the section 179 deduction, may apply.
    (e) Change in use; recapture--(1) In general. If a taxpayer's 
section 179 property is not used predominantly in a trade or business of 
the taxpayer at any time before the end of the property's recovery 
period, the taxpayer must recapture in the taxable year in which the 
section 179 property is not used predominantly in a trade or business 
any benefit derived from expensing such property. The benefit derived 
from expensing the property is equal to the excess of the amount 
expensed under this section over the total amount that would have been 
allowable for prior taxable years and the taxable year of recapture as a 
deduction under section 168 (had section 179 not been elected) for the 
portion of the cost of the property to which the expensing relates 
(regardless of whether such excess reduced the taxpayer's tax 
liability). For purposes of the preceding sentence (i) the ``amount 
expensed under this section'' shall not include any amount that was not 
allowed as a deduction to a taxpayer because the taxpayer's aggregate 
amount of allowable section 179 expenses exceeded the section 179(b) 
dollar limitation, and (ii) in the case of an individual who does not 
elect to itemize deductions under section 63(g) in the taxable year of 
recapture, the amount allowable as a deduction under section 168 in the 
taxable year of recapture shall be determined by treating property used 
in the production of income other than rents or royalties as being 
property used for personal purposes. The amount to be recaptured shall 
be treated as ordinary income for the taxable year in which the property 
is no longer used predominantly in a trade or business of the taxpayer. 
For taxable years following the year of recapture, the taxpayer's 
deductions under section 1688(a) shall be determined as if no section 
179 election with respect to the property had been made. However, see 
section 280F(d)(1) relating to the coordination of section 179 with the 
limitation on the amount of depreciation for luxury automobiles and 
where certain property is used for personal purposes. If the recapture 
rules of both section 280F(b)(2) and this paragraph (e)(1) apply to an 
item of section 179 property, the amount of recapture for such property 
shall be determined only under the rules of section 280F(b)(2).
    (2) Predominant use. Property will be treated as not used 
predominantly in a trade or business of the taxpayer if 50 percent or 
more of the use of such property during any taxable year within the 
recapture period is for a use other than in a trade or business of the 
taxpayer. If during any taxable year of the recapture period the 
taxpayer disposes of the property (other than in a disposition to which 
section 1245(a) applies) or ceases to use the property in a trade or 
business in a manner that had the taxpayer claimed a credit under 
section 38 for such property such disposition or cessation in use would 
cause recapture under section 47, the property will be treated as not 
used in a trade or business of the taxpayer. However, for purposes of 
applying the recapture rules of section 47 pursuant to the preceding 
sentence, converting the use of the property from use in trade or 
business to use in the production of income will be treated as a 
conversion to personal use.
    (3) Basis; application with section 1245. The basis of property with 
respect to which there is recapture under paragraph (e)(1) of this 
section shall be increased immediately before the event resulting in 
such recapture by the amount recaptured. If section 1245(a) applies to a 
disposition of property,

[[Page 219]]

there is no recapture under paragraph (e)(1) of this section.
    (4) Carryover of disallowed deduction. See Sec. 1.179-3 for rules 
on applying the recapture provisions of this paragraph (e) when a 
taxpayer has a carryover of disallowed deduction.
    (5) Example. The following example illustrates the provisions of 
paragraphs (e)(1) through (e)(4) of this section.

    Example. A, a calendar-year taxpayer, purchases and places in 
service on January 1, 1991, section 179 property costing $15,000. The 
property is 5-year property for section 168 purposes and is the only 
item of depreciable property placed in service by A during 1991. A 
properly elects to expense $10,000 of the cost and elects under section 
168(b)(5) to depreciate the remaining cost under the straight-line 
method. On January 1, 1992, A converts the property from use in A's 
business to use for the production of income, and A uses the property in 
the latter capacity for the entire year. A elects to itemize deductions 
for 1992. Because the property was not predominantly used in A's trade 
or business in 1992, A must recapture any benefit derived from expensing 
the property under section 179. Had A not elected to expense the $10,000 
in 1991, A would have been entitled to deduct, under section 168, 10 
percent of the $10,000 in 1991, and 20 percent of the $10,000 in 1992. 
Therefore, A must include $7,000 in ordinary income for the 1992 taxable 
year, the excess of $10,000 (the section 179 expense amount) over $3,000 
(30 percent of $10,000).

    (f) Basis--(1) In general. A taxpayer who elects to expense under 
section 179 must reduce the depreciable basis of the section 179 
property by the amount of the section 179 expense deduction.
    (2) Special rules for partnerships and S corporations. Generally, 
the basis of a partnership or S corporation's section 179 property must 
be reduced to reflect the amount of section 179 expense elected by the 
partnership or S corporation. This reduction must be made in the basis 
of partnership or S corporation property even if the limitations of 
section 179(b) and Sec. 1.179-2 prevent a partner in a partnership or a 
shareholder in an S corporation from deducting all or a portion of the 
amount of the section 179 expense allocated by the partnership or S 
corporation. See Sec. 1.179-3 for rules on applying the basis 
provisions of this paragraph (f) when a person has a carryover of 
disallowed deduction.
    (3) Special rules with respect to trusts and estates which are 
partners or S corporation shareholders. Since the section 179 election 
is not available for trusts or estates, a partner or S corporation 
shareholder that is a trust or estate may not deduct its allocable share 
of the section 179 expense elected by the partnership or S corporation. 
The partnership or S corporation's basis in section 179 property shall 
not be reduced to reflect any portion of the section 179 expense that is 
allocable to the trust or estate. Accordingly, the partnership or S 
corporation may claim a depreciation deduction under section 168 or a 
section 38 credit (if available) with respect to any depreciable basis 
resulting from the trust or estate's inability to claim its allocable 
portion of the section 179 expense.
    (g) Disallowance of the section 38 credit. If a taxpayer elects to 
expense under section 179, no section 38 credit is allowable for the 
portion of the cost expensed. In addition, no section 38 credit shall be 
allowed under section 48(d) to a lessee of property for the portion of 
the cost of the property that the lessor expensed under section 179.
    (h) Partnerships and S corporations--(1) In general. In the case of 
property purchased and placed in service by a partnership or an S 
corporation, the determination of whether the property is section 179 
property is made at the partnership or S corporation level. The election 
to expense the cost of section 179 property is made by the partnership 
or the S corporation. See sections 703(b), 1363(c), 6221, 6231(a)(3), 
6241, and 6245.
    (2) Example. The following example illustrates the provisions of 
paragraph (h)(1) of this section.

    Example. A owns certain residential rental property as an 
investment. A and others form ABC partnership whose function is to rent 
and manage such property. A and ABC partnership file their income tax 
returns on a calendar-year basis. In 1991, ABC partnership purchases and 
places in service office furniture costing $20,000 to be used in the 
active conduct of ABC's business. Although the office furniture is used 
with respect to an investment activity of A, the furniture is being used 
in the active conduct of ABC's trade or

[[Page 220]]

business. Therefore, because the determination of whether property is 
section 179 property is made at the partnership level, the office 
furniture is section 179 property and ABC may elect to expense a portion 
of its cost under section 179.

    (i) Leasing of section 179 property--(1) In general. A lessor of 
section 179 property who is treated as the owner of the property for 
Federal tax purposes will be entitled to the section 179 expense 
deduction if the requirements of section 179 and the regulations 
thereunder are met. These requirements will not be met if the lessor 
merely holds the property for the production of income. For certain 
leases entered into prior to January 1, 1984, the safe harbor provisions 
of section 168(f)(8) apply in determining whether an agreement is 
treated as a lease for Federal tax purposes.
    (2) Noncorporate lessor. In determining the class of taxpayers 
(other than an estate or trust) for which section 179 is applicable, 
section 179(d)(5) provides that if a taxpayer is a noncorporate lessor 
(i.e., a person who is not a corporation and is a lessor), the taxpayer 
shall not be entitled to claim a section 179 expense for section 179 
property purchased and leased by the taxpayer unless the taxpayer has 
satisfied all of the requirements of section 179(d)(5) (A) or (B).
    (j) Application of sections 263 and 263A. Under section 
263(a)(1)(G), expenditures for which a deduction is allowed under 
section 179 and this section are excluded from capitalization under 
section 263(a). Under this paragraph (j), amounts allowed as a deduction 
under section 179 and this section are excluded from the application of 
the uniform capitalization rules of section 263A.
    (k) Cross references. See section 453(i) and the regulations 
thereunder with respect to installment sales of section 179 property. 
See section 1033(g)(3) and the regulations thereunder relating to 
condemnation of outdoor advertising displays. See section 1245(a) and 
the regulations thereunder with respect to recapture rules for section 
179 property.

[T.D. 8121, 52 FR 410, Jan. 6, 1987, as amended by T.D. 8455, 57 FR 
61316, Dec. 24, 1992]