# How to Calculate the Net Advantage of Leasing Based on the Incremental After-Tax

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One of the toughest decisions a business faces involves whether to lease or to purchase property or equipment. While buying provides the business with a significant asset, it also involves a substantial outlay of capital. When businesses compare the costs of leasing versus purchasing, the incremental after-tax effect of the decision is often ignored, yet taxes can greatly influence the business’s decision.

There are a number of costs associated with either buying or leasing. There can also be complex terms of lease and inflexible loan terms. The net advantage to leasing is in spending less on leasing than purchasing an asset outright. Each business will have a unique set of circumstances that will influence the best decision between the two.

A few key factors that should be analyzed to compare the benefits of buying or leasing are cash flows and the potential tax outcomes associated with either decision.

## What Is the Comparison Methodology?

The comparison methodology typically used involves a net present value analysis of the cash flows resulting from each option to purchase and the option to lease. In this method, the business forecasts the costs incurred through each purchase and lease of the asset during each year of the asset’s life. For a purchase, this is the initial acquisition cost and continuing maintenance and financing costs. For a lease, these are the annual lease payments.

A discount rate (typically equivalent to the firm’s marginal borrowing costs) is used to compute the net present value of each year’s expenditures. The method (lease or purchase) with the lowest net present value typically is the preferred method for acquiring the asset.

## How Are Taxes Affected?

In incremental after-tax analysis, the annual costs are adjusted to account for the value of the deductions allowed for income tax purposes. For example, owners of real property can claim an annual depreciation deduction to account for the declining value of an owned asset.

For a taxpayer paying a marginal tax rate of 40 percent, the IRS allows a depreciation deduction of \$100 has a net cash value of \$40. This means that the income tax paid by the taxpayer is reduced by \$40 as a result of the depreciation deduction. This benefit of an income tax deduction is deducted from the annual cost of the asset when forecasting annual costs for purposes of the net present value analysis.

## Are There Other Tax Deductions?

In addition to a depreciation deduction, which is typically the largest deduction available to owners of property or equipment, owners may claim a tax deduction for financing costs that do not represent a reduction of the principal balance owed. Lessees may generally deduct the amount of rent paid during a year or the amount of rent expense accrued during a year. The IRS does not typically allow taxpayers to deduct rent paid in advance.