The Internal Revenue Service (IRS) provides assistance with federal tax information for businesses and the self-employed, including questions about federal tax forms, employee and payroll taxes, and business tax credits.

You can also get information about:

• Employer ID numbers
• Employment taxes
• Small business and self-employed tax center
• Small business events
• Tax calendar
• Tax credits and provisions

Online

Learn more about business taxes.

By Phone

• Agency: United States Department of the Treasury
• Division: Internal Revenue Service Business and Specialty Tax Line
• Phone Number: (800) 829-4933
• Business Hours: Monday - Friday: 7 AM - 7 PM
• Staff is available through the automated phone system during business hours.