Answer: 5.36%
Explanation:
The after-tax cost of debt refers to the interest that is paid on debt which is then less the income tax savings as a result of the deductible interest expenses.
When calculating the after-tax cost of debt, the effective tax rate of a company should be subtracted from 1, after which the difference will be multiplied by the cost of debt. This will therefore be:
= Rate (10,8% × 1000, -960 + 20, 1000) × (1-40%)
=5.36%
