Internal Revenue Service

Business-Specialty Tax Line

MO

800-829-4933

Federal Tax Information 

MO

800-829-1040

Local Taxpayer Advocate

MO

314-612-4610

National Taxpayer Advocate

MO

877-777-4778

TTY 

MO

800-829-4059

Tax Exempt/Government Entities

MO

877-829-5500

Tax Forms Only 

MO

800-829-3676

Tax Fraud Hotline 

MO

800-829-0433

Tele-Tax Information Line

MO

800-829-4477

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