| Business | Phone |
| Upshur County Auditor Po Box 730, Gilmer 75644 | (903) 843-4001 |
| Upshur County Tax Assessor-Car 215 Titus St, Gilmer 75644 | (903) 843-3088 |
| Upshur County Tax Assessor-Tax 215 Titus St, Gilmer 75644 | (903) 843-3085 |
| Upshur County Treasurer 100 W Tyler St, Gilmer 75644 | (903) 843-4027 |