IRS Iowa Customer Service Number, Internal Revenue Service Iowa Offices, Center Address, Hours, Phone Number

IRS Iowa Customer Service Number, Internal Revenue Service Iowa branch offices, addresses, customer service centers, locations, taxpayer centers, hours of operations, toll free helpline number, customer support number and email id with information like IRS application, inquiry, filing, payments, refunds, credits and deductions, help and resources, appointment information in Iowa and their cities.

Taxpayers who are looking IRS Iowa customer service phone number or toll free phone number of IRS Iowa, and Internal Revenue Service Iowa contact number, IRS Taxpayer Assistance Centers (TACs) in Iowa, etc. So, as this page we are sharing all contact information of IRS Iowa customer service department including Internal Revenue Service Iowa customer service office address, telephone number, fax number and official web page link.

IRS Iowa Customer Service Contact Details

Below, we are furnished the contact information of IRS Iowa customer service help teams. You can also get the details of IRS Iowa office address, important contact numbers and enquiry numbers. The customers who want to share their complaints, suggestions, feedback and reviews with the IRS (Internal Revenue Service) Iowa can use the various contact modes we are sharing in this article below.

IRS Branch Offices and Taxpayer Assistance Centers (TACs) in Iowa:

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CityOffice AddressWorking HoursPhone*
Cedar Rapids425 Second St. SE
Cedar Rapids, IA 52401
Monday – Friday 9:00 a.m.-4:30 p.m.
(Closed for lunch 12:00 noon – 1:00 p.m.)
(319) 375-9166
Davenport 101 W. 2nd St.
Davenport, IA 52801
Monday-Friday  9:00 a.m.-4:30 p.m.
(Closed for lunch 12:00 noon – 1:00 p.m.)
(563) 326-6052
Des Moines 210 Walnut St.
Des Moines, IA 50309
Monday-Friday 8:30 a.m.-4:30 p.m.(515) 564-6618
Sioux City 3539 Southern Hills Dr.
Sioux City, IA
Monday-Friday 8:30 a.m.-4:30 p.m.
(Closed for lunch 11:30 a.m. – 12:30 p.m.)
(712) 274-8019
Waterloo 201 Tower Park Dr.
Suite 102
Waterloo, IA 50701
**This office is closed until further notice**(319) 375-9167
Taxpayer Assistance
available at Eastside
Ministerial Alliance
205 Adams St.
Suite 1
Waterloo, IA 50703
Monday-Thursday 9:30 a.m.-4:00 p.m.;  Friday 9:00 a.m.-2:00 p.m.
(Closed for lunch 12:00 noon – 1:00 p.m.)


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Internal Revenue Service Iowa e-help Desk Toll-Free Number:
  • 1-866-255-0654 (Within the United States)
  • 1-512-416-7750 (outside the United States)
  • e-help desk Hours of Operations: Monday thru Friday 6:30 AM – 6:00 PM Central Time
IRS Iowa Customer Service Phone Number:
  • 1-800-829-1040 toll free for Individuals
  • 1-800-829-4933 toll free for Businesses
  • 1-877-829-5500 toll free for Exempt Organizations
  • 1-877-829-5500 toll free for Retirement Plan Administrators
  • 1-877-829-5500 toll free for Government Entities
  • 1-800-829-4059 TDD Toll-Free for people with hearing impairments
  • Hours of Operation: Monday – Friday, 7 a.m. – 7 p.m. your local time (Iowa & Iowa follow Pacific Time)

IRS Iowa Customer Service Email ID: Click here


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IRS Corporate Headquarters Office Address:

Location: Internal Revenue Service Headquarters Building, 1111 Constitution Avenue, Northwest, Washington, District of Iowa, DC, United States


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Useful Links of IRS Iowa Customer Service Support:

Click here for general help and support online

Click here to find local IRS Branch Offices

Click here to find Taxpayer Assistance Centers

Click here to get online Help and Resources

Click here to Contact your local Taxpayer Advocate

Click here to File Paper Tax Returns


If you are unable to connect with the IRS Iowa customer service representatives, kindly you can contact to the your local customer service support by following the above mentioned IRS Iowa customer service, local office address, telephone numbers, fax numbers, email ids and more. You can also contact to the offices located in your city or can visit the customer service office directly, send an email, and write a letter. For further details we recommend you to visit the official website of IRS.

IRS Official Website:

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1 Comment

  1. I just want to find out who I get a hold of about my ex spouse not filing taxes since 06 so he don’t have to pay child support.

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