TAXPAYER SERVICES | INTERNAL REVENUE SERVICE
3539 Southern Hills Drive, Sioux City, IA 51106
Open to anyone
Varies by service
Mon 8:30 am - 4:30 pm Tue 8:30 am - 4:30 pm Wed 8:30 am - 4:30 pm Thu 8:30 am - 4:30 pm Fri 8:30 am - 4:30 pm Sat 8:30 am - 4:30 pm Sun 8:30 am - 4:30 pm
Hotline | Appointment Line
Main | Local Office Line
English
Call for information or visit for services
None
Iowa Nebraska
Information about tax accounts. Processes applications for Federal Tax Identification Numbers.
Taxpayer Advocacy Services provide free, independent, and confidential tax assistance to taxpayers unable to resolve their tax problems through normal channels or individuals experiencing a hardship. Helps individual and business taxpayers resolve problems with the IRS.
INTERNAL REVENUE SERVICE
Federal tax agency.