The SIC code, or Standard Industrial Classification, for a company or business is used when determining the appropriate business tax. The classification of a company or business is based on "similar operating criteria" of other businesses that have the same or similar operations. However, as of 1987 the SIC code system was replaced with the six-digit North American Industrial Classification System (NAICS). Finding these codes for a company or business is done by doing a search online.
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Go to the OSHA web page for the United States Department of Labor.
Enter the name of the company or business in the “Enter the search keyword(s)” text box.
Click the “Submit” button to see a list of results. If no results are found, you will need to enter the type of operations for company or business.
Click the link for the company or business from the list. The SIC code is the four-digit code in front of the name.
Make a note of the SIC code on a piece of paper.
Go to the NAICS Association website and scroll down to the US NAICS Keyword Search section.
Enter type of operations for the company or business in the “Common Keywords” text box and then click the “NAICS Search” button. View the results on the next page to find the NAICS code for the description of operations that matches the company or business.
Enter the SIC code for the company or business in the “SIC Code” text box. Click the “SIC Search” button to see a list of results. The NAICS code will be listed in the first column.
Make a note of the NAICS code on a piece of paper.
Tips and warnings
- SIC codes and NAICS codes are based on the type of operations for a company or business and are typically not unique to a single business.
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