An IRS principal business code is a designated six-digit number that classifies the main type of products or related services the business sells. This code categorizes sole proprietorships or independent contractor jobs by an activity they are heavily involved in to facilitate the administration of the IRS.
What is the principal activity of a business?
Principal activity is defined in stages from the section level to the most detailed level of the standard industrial classification. The principal activity of an enterprise is usually determined by the industry of the establishment that generates most value added during an accounting period.
What are the IRS principal business activity codes?
This list of Principal Business Activities and their associated codes is designed to classify an enterprise by the type of activity in which it is engaged to facilitate the administration of the Internal Revenue Code. These Principal Business Activity Codes are based on the North American Industry Classification System.
How is the principal business code of a business determined?
The Principal Business Code of a business is based on the business activity that generates the most revenue. Primary business activity is determined through the relative share of production costs, or by capital investment. Principal business codes are based on the North American Industry Classification System, NAICS.
Which is an example of a principal business activity?
This list provides each principal business activity with its associated IRS code designed to classify an enterprise by type of activity. 333100 – Agriculture, construction and mining machinery. 333200 – Industrial machinery. 333310 – Commercial and service industry machinery.
How to find NAICS codes for principal business?
NAICS Codes for Principal Business Activity for New York State Tax Purposes The following list includes North American Industry Classification System (NAICS) codes for NewYork State tax purposes. Select the code that best matches your primary business activity. The list is arranged by type of industry.
