Title 26 › Subtitle A — Income Taxes › CHAPTER 1 — NORMAL TAXES AND SURTAXES › Subchapter I — Natural Resources › PART I — DEDUCTIONS › § 616
You can deduct development costs you pay in a year for a mine or other natural deposit (but not an oil or gas well) if you pay them after it’s found that the ores or minerals exist in amounts you can sell. Costs for buying or improving things that get depreciation are not covered here, though any depreciation taken counts as a development cost for these rules. You may choose, following IRS rules, to treat those costs as deferred and write them off as the minerals you get are sold. If the mine is still in development, you can only defer the amount that is more than that year’s mineral income. Deferred costs are added to the mine’s basis, but they are ignored when figuring the depletion deduction. For foreign mines (not oil, gas, or geothermal wells), the normal rules don’t apply: you can either put the costs into basis for depletion or, if you don’t, deduct them evenly over 10 taxable years starting when paid.
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Internal Revenue Code, Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 616
Title 26, Internal Revenue Code
Last Updated
Sep 22, 2026
Release point: 119-110