What is the tax advantage of debt financing often referred to as?

• A. Tax shields due to interest deduction
• B. Tax credits for dividends
• C. Tax exemptions on interest
• D. No tax benefit

Answer: (A)

Debt financing yields a tax shield because interest expense is deductible from taxable income. This means each dollar of interest reduces the amount of tax the company has to pay, lowering the overall cost of debt after taxes. If the tax rate is t and the interest expense is I, the tax saving from the interest deduction is t × I, and the after-tax cost of debt becomes I × (1 − t). For example, with a 30% tax rate and 6% pre-tax interest, the after-tax cost is 6% × (1 − 0.30) = 4.2%, and the tax savings from the interest deduction are 30% of the interest.

This tax shield—often referred to as the interest tax shield—is the fundamental tax advantage of debt financing. The other options describe different or incorrect tax treatments: dividends tax credits pertain to equity, not debt; tax exemptions on interest are not the standard mechanism for corporate debt in most systems; and having no tax benefit contradicts how interest deductions work.