The WACC of T-Mobile US Inc (TMUS) is 7.0%.
| Range | Selected | |
| Cost of equity | 5.90% - 9.70% | 7.80% |
| Tax rate | 20.40% - 23.10% | 21.75% |
| Cost of debt | 5.10% - 5.80% | 5.45% |
| WACC | 5.5% - 8.5% | 7.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.45 | 0.86 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.90% | 9.70% |
| Tax rate | 20.40% | 23.10% |
| Debt/Equity ratio | 0.29 | 0.29 |
| Cost of debt | 5.10% | 5.80% |
| After-tax WACC | 5.5% | 8.5% |
| Selected WACC | 7.0% | |