Coronavirus (COVID-19) Alert

Staff is not available through the automated phone system at this time. You can still get information using the automated system. Assistance is also available online.

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


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.