The Internal Revenue Service (IRS) has put together links to basic federal tax information to help people who are starting a business. This information can help new business owners in making basic business decisions.
Even so, the IRS warns that their list should not be considered all-inclusive, and different steps may be needed for specific types of businesses.
The IRS provides information on specific industries on its Industries/Professions page.
For information regarding state-level requirements for starting and operating a business, the IRS recommends owners refer to their state's website.