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Taxpayer Information Lines | Internal Revenue Service

1222 Spruce Street, Saint Louis, MO 63103

Eligibility

No Restrictions

Required documents

No Documentation Required

Hours

Mon-Fri - 8:30am to 4:30pm
800-829-4933
Voice·

Tax information (businesses)

314-612-4610
Voice·

Taxpayer advocate (local)

800-829-1040
Voice·

Tax information (individuals)

844-545-5640
Voice·

Main

877-777-4778
Voice·

Toll Free

Languages

  • English
  • Spanish

Application process

Call For Service

Fees

No Fees

Service area

  • Illinois State
  • Missouri State
Provides general information on state and federal income tax laws, collection, filing, and payment. Services include Individual Taxpayer Identification Numbers, Federal Tax Collection Agencies, Tax Forms, Federal Income Tax Information, Local Income Tax Information, State Income Tax Information, Taxpayer Information Lines and Tax Preparation Assistance. ALSO KNOWN AS IRS

Last Assured

06/03/2026

Providing organization

INTERNAL REVENUE SERVICE
Provides general information on state and federal income tax laws, collection, filing, and payment. Services include Individual Taxpayer Identification Numbers, Federal Tax Collection Agencies, Tax Forms, Federal Income Tax Information, Local Income Tax Information, State Income Tax Information, Taxpayer Information Lines and Tax Preparation Assistance. ALSO KNOWN AS IRS