| Business | Phone |
| Auditor Of Accounts Office 820 N French St, Wilmington 19801 | (302) 577-3870 |
| Budget Office 820 N French St, Wilmington 19801 | (302) 577-8550 |
| Finance Dept 820 N French St, Wilmington 19801 | (302) 577-8979 |
| Revenue Division 820 N French St, Wilmington 19801 | (302) 577-8686 |