| Business | Phone |
| Guzman Income Tax 112 E 19th St, South Sioux City 68776 | (402) 494-6170 |
| H & R Block Tax Svc 2601 Cornhusker Dr, South Sioux City 68776 | (402) 494-3060 |
| H & R Block Tax Svc 2727 Cornhusker Dr, South Sioux City 68776 | (402) 494-3368 |
| Income Tax Connection 1512 Dakota Ave, South Sioux City 68776 | (402) 412-2400 |
| Knight's Tax & Elec Filing 801 El Paso Dr, South Sioux City 68776 | (402) 494-5312 |