Main Number 617-626-5075
| Accounts Control Division | 617-626-6893 |
| Audit | 617-626-6820 |
| Certified Assessments | 617-626-5750 |
| Employer Liability Registrations | 617-626-5050 |
| Experience Rating | 617-626-6893 |
| Fair Share Contributions | 617-626-6080 |
| Refund Unit | 617-626-5090 |
| Revenue Enforcement | 617-626-5750 |
| Reimbursable Unit | 617-626-5790 |
| Reports Processing | 617-626-5243 |
| UHI Department | 617-626-5243 |