Consider a lease vs buy decision, using a before-tax discount rate, where a commitment has already been made to acquire the asset, and all cash flows involved are certain. The purchase price is C0 and the single lease payment L is paid later. l is
the proportion of C0 which is immediately tax deductible (rate t) and the balance of C0 is deductible later (i.e. sufficient taxable income exists now and later to absorb the depreciation deductions). For a corporate lessee, leasing is better than buying if: