The WACC of T-Mobile US Inc (TMUS) is 7.6%.
| Range | Selected | |
| Cost of equity | 6.60% - 10.70% | 8.65% |
| Tax rate | 20.40% - 22.50% | 21.45% |
| Cost of debt | 4.60% - 5.10% | 4.85% |
| WACC | 5.9% - 9.2% | 7.6% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.6 | 1.04 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.60% | 10.70% |
| Tax rate | 20.40% | 22.50% |
| Debt/Equity ratio | 0.29 | 0.29 |
| Cost of debt | 4.60% | 5.10% |
| After-tax WACC | 5.9% | 9.2% |
| Selected WACC | 7.6% | |