Internal Revenue Service (IRS)

Business-Specialty Tax Line 

OK

800-829-4933

Federal Tax Forms 

OK

800-829-1040

Federal Tax Violations 

OK

800-829-0433

National Taxpayer Advocate 

OK

877-777-4778

TTY 

OK

800-829-4059

Tax Exempt/Government Entities 

OK

877-829-5500

Tax Forms Only 

OK

800-829-3676

Tele-Tax Information Line 

OK

800-829-4477

Business & Specialty Tax Line 

OK

800-829-4933

Tulsa 

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