Answer:
After tax cost of debt = 0.049 or 4.9%
Step-by-step explanation:
The after tax cost of debt is the rate of debt after deducting the benefit from tax savings due to interest payments required by the debt which are deductible before calculating tax. The after tax cost of debt is somewhat an effective cost of debt. It is calculated using the following formula,
After tax cost of debt = Cost of debt * (1 - tax rate)
After tax cost of debt = 0.07 * (1 - 0.3)
After tax cost of debt = 0.049 or 4.9%