Title 26Internal Revenue CodeRelease 119-73

§616 Development expenditures

Title 26 › Subtitle Subtitle A— - Income Taxes › Chapter CHAPTER 1— - NORMAL TAXES AND SURTAXES › Subchapter Subchapter I— - Natural Resources › Part PART I— - DEDUCTIONS › § 616

Last updated Apr 6, 2026|Official source

Summary

You can deduct costs you pay to develop a mine or other natural deposit (not oil or gas wells) after it is shown that saleable ores or minerals exist. You cannot use this rule for buying or improving property that is depreciated, although allowed depreciation is treated as a development cost for this rule. You may choose, under the government’s rules, to treat these costs as deferred and write them off gradually as the units of ore or mineral are sold. If the mine is still in its development stage, that choice only applies to the part of costs that is more than the year’s net receipts from sales. The choice must cover the whole amount for the mine and is binding for that tax year. Deferred costs are added to the mine’s adjusted basis but are ignored when figuring depletion. For a mine or deposit located outside the United States (not oil, gas, or geothermal wells), the normal and deferred rules above do not apply. Instead you can either add the costs to basis for purposes of computing depletion (without regard to section 613), or, if you do not do that, you must deduct the costs evenly over a 10-taxable-year period starting in the year you paid them. An election for 10-year amortization is available under section 59(e).

Full Legal Text

Title 26, §616

Internal Revenue Code — Source: USLM XML via OLRC

(a)Except as provided in subsections (b) and (d), there shall be allowed as a deduction in computing taxable income all expenditures paid or incurred during the taxable year for the development of a mine or other natural deposit (other than an oil or gas well) if paid or incurred after the existence of ores or minerals in commercially marketable quantities has been disclosed. This section shall not apply to expenditures for the acquisition or improvement of property of a character which is subject to the allowance for depreciation provided in section 167, but allowances for depreciation shall be considered, for purposes of this section, as expenditures.
(b)At the election of the taxpayer, made in accordance with regulations prescribed by the Secretary, expenditures described in subsection (a) paid or incurred during the taxable year shall be treated as deferred expenses and shall be deductible on a ratable basis as the units of produced ores or minerals benefited by such expenditures are sold. In the case of such expenditures paid or incurred during the development stage of the mine or deposit, the election shall apply only with respect to the excess of such expenditures during the taxable year over the net receipts during the taxable year from the ores or minerals produced from such mine or deposit. The election under this subsection, if made, must be for the total amount of such expenditures, or the total amount of such excess, as the case may be, with respect to the mine or deposit, and shall be binding for such taxable year.
(c)The amount of expenditures which are treated under subsection (b) as deferred expenses shall be taken into account in computing the adjusted basis of the mine or deposit, except that such amount, and the adjustments to basis provided in section 1016(a)(9), shall be disregarded in determining the adjusted basis of the property for the purpose of computing a deduction for depletion under section 611.
(d)In the case of any expenditures paid or incurred with respect to the development of a mine or other natural deposit (other than an oil, gas, or geothermal well) located outside of the United States—
(1)subsections (a) and (b) shall not apply, and
(2)such expenditures shall—
(A)at the election of the taxpayer, be included in adjusted basis for purposes of computing the amount of any deduction allowable under section 611 (without regard to section 613), or
(B)if subparagraph (A) does not apply, be allowed as a deduction ratably over the 10-taxable year period beginning with the taxable year in which such expenditures were paid or incurred.
(e)For election of 10-year amortization of expenditures allowable as a deduction under subsection (a), see section 59(e).

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

1988—Subsec. (e). Pub. L. 100–647 substituted “section 59(e)” for “section 58(i)”. 1986—Subsec. (a). Pub. L. 99–514, § 411(b)(2)(C)(i), inserted reference to subsec. (d). Subsecs. (d), (e). Pub. L. 99–514, § 411(b)(2)(A), added subsec. (d) and redesignated former subsec. (d) as (e). 1982—Subsec. (d). Pub. L. 97–248 added subsec. (d). 1976—Subsec. (b). Pub. L. 94–455 struck out “or his delegate” after “Secretary”.

Statutory Notes and Related Subsidiaries

Effective Date

of 1988 AmendmentAmendment by Pub. L. 100–647 effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, Pub. L. 99–514, to which such amendment relates, see section 1019(a) of Pub. L. 100–647, set out as a note under section 1 of this title.

Effective Date

of 1986 AmendmentAmendment by Pub. L. 99–514 applicable to costs paid or incurred after Dec. 31, 1986, in taxable years ending after such date, with transition rule, see section 411(c) of Pub. L. 99–514 set out as a note under section 263 of this title.

Effective Date

of 1982 AmendmentAmendment by Pub. L. 97–248 applicable to taxable years beginning after Dec. 31, 1982, see section 201(e)(1) of Pub. L. 97–248, set out as a note under section 5 of this title.

Reference

Citations & Metadata

Citation

26 U.S.C. § 616

Title 26Internal Revenue Code

Last Updated

Apr 6, 2026

Release point: 119-73