Internal Revenue Service

Come visit the IRS booth and get information to help you with small business tax questions, including publications, CD-ROMs and other free products developed especially for the Small Business/Self Employed person.

About Internal Revenue Service

The IRS, a branch of the Department of Treasury, deals directly with more Americans than any other institution, public or private. It also is one of the world’s most efficient tax agencies.

Customer Service Representatives can be reached toll-free at the following numbers:
Individual questions: 800-829-1040
Business questions: 800-829-4933
Assistance is available from 7:00 a.m. to 10:00 p.m. (local time) weekdays.

Many forms and publications are available on the IRS web site.

Here is more information on what Internal Revenue Service offers small businesses.

IRS Small Business Resources

Click here for a printable version

IRS Small Business & Self-Employed Tax Center
This section offers a broad range of resources across federal and state agencies, as well as industry/profession specific information for self-employed entrepreneurs, employers and businesses.  You will also find links to starting and operating a business, employment taxes, business-related forms and publications, and online learning options.

IRS Video Portal
Learn about tax topics through video and audio presentations, including the IRS Virtual Small Business Tax Workshop, which has interactive lessons designed to help new small business owners learn their tax rights and responsibilities.

Industry Specific Tax Information
Visit this page for tax information specific to certain industries and professions.

Self-Employed Individuals Tax Center
This page gives you the basics on your tax responsibilities if you are self-employed or an independent contractor.

Tax Reform – and (Taxpayer Advocate’s site)
Both of these sites have information on the Tax Cuts and Jobs Act and its effects on your taxes.

Paycheck Checkup/Withholding –
The IRS encourages everyone to use the Withholding Calculator to perform a “paycheck checkup.”  This is important because of recent changes to the tax law for 2018 that affect the amount of tax withholding.

Business and Specialty Tax Line 1-800-829-4933
For Small Businesses, Corporations, Partnerships and Trusts who need information and/or help related to their Business Returns or Business (BMF) Accounts. Services cover Employer Identification Numbers (EINs), 94x returns, 1041, 1065, 1120S, Excise Returns, Estate and Gift Returns, as well as issues related to Federal tax deposits.

IRS Tax Calendar for Businesses and Self-Employed
Use your computer or mobile device to view due dates and actions for each month. You can see all events or filter them by monthly depositor, semiweekly depositor, excise, or general event types.

Identity Protection: Prevention, Detection and Victim Assistance
A guide for identity theft victims with information on how to identify and report identity theft as well as how to minimize your chances of becoming a victim. Sections with information and links for individuals and businesses.

Electronic Filing Options for Business and Self-Employed Taxpayers
Find a complete list of business returns that can be filed electronically, as well as information on electronic payment options. Taxpayers can authorize an electronic funds withdrawal, use a credit card or enroll in the U.S. Treasury’s Electronic Federal Tax Payment System (EFTPS).  Payments can be made 24 hours a day, 7 days a week. The electronic funds withdrawal and EFTPS options are free!  To enroll in EFTPS, go to

Subscribe to e-News for Small Businesses
e-News for Small Businesses is a free electronic mail service designed to provide tax information for small business owners and self-employed individuals.