The WACC of Balfour Beatty PLC (BBY.L) is 7.9%.
| Range | Selected | |
| Cost of equity | 8.50% - 10.70% | 9.60% |
| Tax rate | 13.70% - 27.30% | 20.50% |
| Cost of debt | 4.60% - 5.30% | 4.95% |
| WACC | 7.1% - 8.6% | 7.9% |
| Category | Low | High |
| Long-term bond rate | 4.0% | 4.5% |
| Equity market risk premium | 6.0% | 7.0% |
| Adjusted beta | 0.75 | 0.81 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.50% | 10.70% |
| Tax rate | 13.70% | 27.30% |
| Debt/Equity ratio | 0.44 | 0.44 |
| Cost of debt | 4.60% | 5.30% |
| After-tax WACC | 7.1% | 8.6% |
| Selected WACC | 7.9% | |