Welcome to the IRS Tax Center
Links and services provided to you directly from the Internal Revenue Service
Need an IRS form or publication?
Contact My Local Office
IRS Taxpayer Assistance Centers are your one-stop resource for face-to-face tax help and solutions to tax problems, every business day.
Taxpayer Advocate Service
The Taxpayer Advocate is an independent organization within the IRS. They help taxpayers resolve problems with the IRS and recommend changes that will prevent the problems.
Starting, Operating or Closing a Business
Whether you are a budding entrepreneur, or an established business owner, you will find everything you need to start and manage your business venture.
The form of business you operate determines what taxes you must pay and how you pay them.
Tax Information for Businesses
If you run a small business or are self-employed, the IRS web site offers a wide variety of information to help you.
This checklist provides the basic steps you should follow to start a business.
When beginning a business, you must decide what structure to use. Legal and tax considerations enter into this decision.
Employer ID Numbers (EINs)
An Employer Identification Number (EIN) is also known as a Federal Tax Identification Number, and is used to identify a business entity. Generally, businesses need an EIN.
Apply online for the Employer Identification Number (EIN), also known as a Federal Tax Identification Number.
Businesses with Employees
Information about hiring, recordkeeping, and other topics for business owners with employees.
Before you can determine how to treat payments you make for services, you must first know the business relationship that exists between you and the person performing the services.
If you have employees, you are responsible for Federal Income Tax Withholding, Social Security and Medicare taxes and Federal Unemployment Tax Act (FUTA).
IRS Withholding Calculator
This easy-to-use calculator can help you figure your employees’ Federal Income Tax Withholding so you can withhold the correct amount from their pay.
Retirement Plans for Small Businesses
Are you looking for information on employee retirement plans in order to provide better service to all your employees?