<klink type="cncpt">Tell me about depletion</klink>
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<p>Depletion is the using up of natural resources by mining, quarrying, drilling, or felling. If you own or operate a mining or timber business, you can take a depletion deduction as your property's reserves are used up over time. Calculating depletion can be complex; consult your tax professional. For more information, see IRS Publication 535, Business Expenses, Chapter 13, on the <alink type="xtnl" href="http://www.irs.gov">IRS Web site</alink>.</p>