This information can then be used to determine if a gain exists. The basis of the claim must also be determined in order to ascertain if there is any excess basis. Also see IRC section 1254 for property placed in service after 1986. This amount is shown as an Alternative Minimum Tax adjustment item and is the difference between the recomputed Alternative Minimum Tax expense and the expense claimed on the return. Consider also the calculation for Depreciation and Depletion.
Most miners tend to have some heavy equipment with sizable basis.
The recalculation of the depreciation or depletion and subsequent changes can have an effect on the Alternative Minimum Tax.