Mr Trump claimed some personal expenses as a business deduction. But, the contribution of these deductions to overall loss is lower than the depreciation of his real estate assets. Depreciation is the allocation of cost throughout the useful life of the assets. Thus, depreciation expense is a tax-deductible expense that is prepaid. Since depreciation is charged each year and not associated with actual cash payment, it is perceived as shrew planning to reduce taxes without actual spending. But in a real sense, the depreciation is not free as it represents the actual cost paid by the taxpayers that need financing in some ways.