| Business | Phone |
| Nashua Finance Dept 229 Main St, Nashua 3060 | (603) 589-3170 |
| Nashua Property Tax Collection 229 Main St, Nashua 3060 | (603) 589-3190 |
| Nashua Tax Assessor's Office 229 Main St, Nashua 3060 | (603) 589-3040 |
| Nashua Tax Collector 229 Main St # 140, Nashua 3060 | (603) 594-3315 |