The WACC of Microsoft Corp (MSFT) is 8.5%.
| Range | Selected | |
| Cost of equity | 7.40% - 9.90% | 8.65% |
| Tax rate | 15.40% - 17.20% | 16.30% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 7.3% - 9.8% | 8.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.76 | 0.91 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.40% | 9.90% |
| Tax rate | 15.40% | 17.20% |
| Debt/Equity ratio | 0.02 | 0.02 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 7.3% | 9.8% |
| Selected WACC | 8.5% | |