What is the WACC with 80% equity at 10% and 20% debt at 5%, taxed at 21%?

8.79%

With 80% equity costing 10% and 20% debt costing 5% before a 21% tax shield, the weighted average cost of capital is 8.79%.

How it is worked out

Weight each source of capital by its share of the total, then blend the costs. Debt is multiplied by (1 − tax rate) because interest is deductible; equity is not.

(80% × 10%) + (20% × 5% × (1 − 21%)) = 8.79%

The tax shield takes debt's effective cost from 5% to 3.95%.

Open the full WACC calculator to use your own figures.

Similar questions

Questions

What is the WACC with 80% equity at 10% and 20% debt at 5%, taxed at 21%?
With 80% equity costing 10% and 20% debt costing 5% before a 21% tax shield, the weighted average cost of capital is 8.79%. (80% × 10%) + (20% × 5% × (1 − 21%)) = 8.79%.
How is this worked out?
Weight each source of capital by its share of the total, then blend the costs. Debt is multiplied by (1 − tax rate) because interest is deductible; equity is not.
Can I use my own figures?
Yes — the WACC calculator takes any values and shows the full result.