[Code of Federal Regulations]
[Title 26, Volume 7]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.617-1]

[Page 521-524]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.617-1  Exploration expenditures.

    (a) General rule. Section 617 prescribes rules for the treatment of 
expenditures paid or incurred after September 12, 1966, for ascertaining 
the existence, location, extent, or quality of any deposit of ore or 
other mineral for which a deduction for depletion is allowable under 
section 613 (other than oil or gas) paid or incurred by the taxpayer 
before the beginning of the development stage of the mine or other 
natural deposit. Such expenditures hereinafter in the regulations under 
section 617 will be referred to as exploration expenditures. The 
development stage of the mine or other natural deposit will be deemed to 
begin at the time when, in consideration of all the facts and 
circumstances (including the actions of the taxpayer), deposits of ore 
or other mineral are disclosed in sufficient quantity and quality to 
reasonably justify commercial exploitation by the taxpayer. For example, 
core drilling expenditures paid or incurred by the taxpayer to ascertain 
the existence of commercially marketable ore are exploration 
expenditures within the meaning of this section. Also, expenditures for 
exploratory drilling from within a producing mine to ascertain the 
existence of what appears (on the basis of all of the facts and 
circumstances known at the time of the expenditures) to be a different 
ore deposit are exploration expenditures within the meaning of this 
section. Expenditures paid or incurred in connection with core drilling 
to further delineate the extent and location of an existing commercially 
marketable deposit to facilitate its development are development 
expenditures. Under section 617(a), a taxpayer may deduct exploration 
expenditures paid or incurred for the exploration of any deposit of

[[Page 522]]

ore or other mineral subject to the limitation of section 617(h). Under 
section 617(b), a taxpayer shall recapture the exploration expenditures 
previously deducted under section 617(a) either through including in 
income an amount equal to the amount of the adjusted exploration 
expenditures (as defined in section 617(f)) or through disallowance of 
the deduction for depletion under section 611. Certain rules are 
provided in section 617(c) for recapture of exploration expenditures 
made with respect to property for which the taxpayer later receives a 
bonus or royalty. Under section 617(d), gain from dispositions of mining 
property, with respect to which exploration expenditures have been 
previously deducted, is to be recognized notwithstanding certain other 
provisions of the Code.
    (b) Expenditures to which section 617 is not applicable. (1) Section 
617 is not applicable to expenditures which would be allowed as 
deductions for the taxable year without regard to section 617.
    (2) Section 617 is not applicable to expenditures which are 
reflected in improvements subject to allowances for depreciation under 
sections 167 and 611. However, allowances for depreciation of such 
improvements which are used in the exploration of ores or minerals are 
considered exploration expenditures under section 617. If such 
improvements are used only in part for exploration during the taxable 
year, an allocable portion of the allowance for depreciation shall be 
treated as an exploration expenditure.
    (3) Section 617 is applicable to exploration expenditures paid or 
incurred by a taxpayer in connection with the acquisition of a 
fractional share of the working or operating interest to the extent of 
the fractional interest so acquired by the taxpayer. The expenditures 
attributable to the remaining fractional share shall be considered as 
the cost of his acquired interest and shall be recovered through 
depletion allowances. For example, taxpayer A owns mineral leases on 
unexplored mineral lands and agrees to convey an undivided three-fourths 
(\3/4\) interest in such leases to taxpayer B provided B will pay all of 
the expenses for ascertaining the existence, location, extent, or 
quality of any deposit of ore or other mineral which will be incurred 
before the beginning of the development stage. B may elect to treat 
three-fourths of such amount under section 617. B must treat one-fourth 
of such amount as part of the cost of his interest, recoverable through 
depletion.
    (4) Section 617 is not applicable to costs of exploration which are 
reflected in the amount which the taxpayer paid or incurred to acquire 
the property. Section 617 applies only to costs paid or incurred by the 
taxpayer for exploration undertaken directly or through a contract by 
the taxpayer. See, however, sections 381(a) and 381(c)(10) for special 
rules with respect to deferred exploration expenditures in certain 
corporate acquisitions.
    (5) Section 617 is not applicable to amounts paid or incurred for 
the purpose of ascertaining the existence, location, extent, or quality 
of any deposit of oil or gas or of any mineral with respect to which a 
deduction for percentage depletion is not allowable under section 613. 
The purpose of the expenditure shall be determined by reference to the 
facts and circumstances at the time the expenditure is paid or incurred.
    (c) Elections--(1) Election to deduct under section 617(a). (i) The 
election to deduct exploration expenditures under section 617(a) may be 
made by deducting such expenditures in the taxpayer's income tax return 
for his first taxable year ending after September 12, 1966, for which 
the taxpayer desires to deduct exploration expenditures which are paid 
or incurred by him during such taxable year and after September 12, 
1966. This election may be exercised by deducting such exploration 
expenditures either in the taxpayer's return for such taxable year or in 
an amended return filed before the expiration of the period for filing a 
claim for credit or refund of income tax for such taxable year. Where 
the election is made in an amended return for a taxable year prior to 
the most recent year for which the taxpayer has filed a return, the 
taxpayer shall file amended income tax returns, reflecting any increase 
or decrease in tax attributable to the election, for all subsequent 
taxable years affected by the election for which he has filed income tax 
returns before

[[Page 523]]

making the election. See section 617(a)(2)(C) and subparagraph (4) of 
this paragraph for provisions relating to extension of the period of 
limitations for the assessment of any deficiency for any taxable year to 
the extent the deficiency is attributable to an election or revocation 
of an election under section 617(a). In applying the election to the 
years affected, there shall be taken into account the effect that any 
adjustments resulting from the election shall have on other items 
affected thereby (such as the deduction for charitable contributions, 
the foreign tax credit, net operating loss, and other deductions or 
credits the amount of which is limited by the taxpayer's income) and the 
effect that adjustments of any such items have on items of other taxable 
years. Amended returns filed for taxable years subsequent to the taxable 
year for which the election under section 617(a) is made by amended 
return shall, where appropriate, apply the recapture rules of 
subsections (b), (c), and (d) of section 617. See Sec. Sec. 1.617-3 and 
1.617-4.
    (ii) A taxpayer who makes or has made an election under section 
617(a) shall state clearly on his income tax return for each taxable 
year for which he deducts exploration expenditures the amount of the 
deduction claimed under section 617(a) with respect to each property or 
mine. Such property or mine shall be identified by a description 
adequate to permit application of the recapture rules of section 617 
(b), (c), and (d).
    (iii) A taxpayer who has made an election under section 617(a) may 
not make an election under section 615(e) unless, within the period set 
forth in section 615(e), he revokes his election under section 617(a). A 
taxpayer who has made and has not revoked an election under section 
617(a) may not, in his return for the taxable year for which the 
election is made or for any subsequent taxable year, charge to capital 
account any exploration expenditures which are deductible by him under 
section 617(a); and he must deduct all such expenditures as expenses in 
computing adjusted gross income. Any exploration expenditures paid or 
incurred after December 31, 1969, which are not deductible by the 
taxpayer under section 617(a) solely because of the application of 
section 617(h) shall be charged to capital account.
    (2) Time for making elections. The election under section 617(a) may 
be made at any time before the expiration of the period prescribed for 
filing a claim for credit or refund of the tax imposed by chapter 1 for 
the first taxable year for which the taxpayer desires to deduct 
exploration expenditures under section 617(a).
    (3) Revocation of election to deduct. (i) A taxpayer may revoke an 
election made by him under section 617(a) by filing with the Internal 
Revenue service center with which the taxpayer's income tax return is 
required to be filed, within the period set forth in subdivision (ii) of 
this subparagraph, a statement, signed by the taxpayer or his authorized 
representative, which sets forth that the taxpayer is revoking the 
section 617(a) election previously made by him and states with whom and 
where the document making the election was filed. A taxpayer revoking a 
section 617(a) election shall file amended income tax returns which 
reflect any increase or decrease in tax attributable to the revocation 
of election for all taxable years affected by the revocation of election 
for which he has filed income tax returns before revoking the election. 
See section 617(a)(2)(C) and subparagraph (4) of this paragraph for 
provisions relating to extension of the period of limitations for the 
assessment of any deficiency attributable to an election or revocation 
of an election under section 617(a). In applying the revocation of 
election to the years affected, there shall be taken into account the 
effect that any adjustments resulting from the revocation of election 
shall have on other items affected thereby (such as the deduction for 
charitable contributions, the foreign tax credit, net operating loss, 
and other deductions or credits the amount of which is limited by the 
taxpayer's income) and the effect that adjustments of any such items 
have on items of other taxable years.
    (ii) An election under section 617(a) may be revoked before the 
expiration of the last day of the third month following the month in 
which the final regulations under section 617(a) are

[[Page 524]]

published in the Federal Register. After the expiration of this period, 
a taxpayer who has made an election under section 617(a) may not revoke 
that election unless he obtains the prior consent of the Commissioner of 
Internal Revenue. Consent will not be granted where a principal purpose 
for the revocation of the election is to circumvent the recapture 
provisions of section 517 (b), (c), or (d). The request for consent 
shall be made in writing to the Commissioner of Internal Revenue, 
Attention T:I:E, Washington, DC 20224. The request shall include in 
detail:
    (a) The reason or reasons for the revocation of election under 
section 617(a);
    (b) An itemization of the taxpayer's deductions under section 
617(a);
    (c) A description of all properties and detailed information of the 
exploration activities with respect to which the taxpayer has taken 
deductions under section 617(a);
    (d) A description of any development or production activities on all 
properties with respect to which exploration expenditures were deducted 
under section 617(a); and
    (e) A recomputation of the tax for each prior taxable year affected 
by the revocation. A letter setting forth the Commissioner's 
determination will be mailed to the taxpayer. If consent is granted, a 
copy of the letter granting such consent shall be filed with the 
director of the Internal Revenue service center with which the 
taxpayer's income tax return is required to be filed and shall be 
accompanied by an amended return or returns, if necessary.
    (iii) If, before revoking his election, the taxpayer has transferred 
any mineral property with respect to which he deducted exploration 
expenditures under section 617(a), to another person in a transaction as 
a result of which the basis of such property in the hands of the 
transferee is determined in whole or in part by reference to the basis 
in the hands of the transferor, the statement submitted pursuant to 
subdivision (i) of this paragraph shall state that such property has 
been so transferred, shall identify the transferee, the property 
transferred, the date of the transfer, and shall indicate the amount of 
the adjusted exploration expenditures with respect to such property on 
such date.
    (4) Deficiency attributable to election or revocation of election. 
The statutory period for the assessment of any deficiency for any 
taxable year, to the extent such deficiency is attributable to an 
election or revocation of an election under section 617(a), shall not 
expire before the last day of the 2-year period which begins on the day 
after the date on which such election or revocation of election is made; 
and such deficiency may be assessed at any time before the expiration of 
such 2-year period, notwithstanding any law or rule which would 
otherwise prevent such assessment.

[T.D. 7192, 37 FR 12942, June 30, 1972]