The WACC of Amazon.com Inc (AMZN) is 7.8%.
| Range | Selected | |
| Cost of equity | 6.80% - 9.10% | 7.95% |
| Tax rate | 15.20% - 17.80% | 16.50% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 6.7% - 8.9% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.63 | 0.75 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.80% | 9.10% |
| Tax rate | 15.20% | 17.80% |
| Debt/Equity ratio | 0.04 | 0.04 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 6.7% | 8.9% |
| Selected WACC | 7.8% | |