Businesss & Specialty Tax Line
Federal Tax Forms
Federal Tax Violations
National Taxpayer Advocate
TTY
Tax Exempt-Government Entities
Tax Forms Only
Tele-Tax Information Line
WI | 800-829-4477 | |
Automated Refund Info | 800-829-1954 | |
Business Specialty Tax Line | 800-829-4933 | |
National Taxpayer Advocate Service | 877-777-4778 | |
Tele-Tax Information Line | 800-829-4477 | |