Certificate of Incorporation is a legal document that officially establishes a new corporation, providing it with legal recognition as a separate entity from its owners and outlining its basic structure and purpose.

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Last Updated: February 26, 2026

This guide explains all the need-to-know facts about a Certificate of Incorporation, including what it is, what information is included on it, what business type requires it, and more.
According to the Small Business Administration (SBA), a Certificate of Incorporation is a comprehensive legal document that details the basic information about a corporate entity. A form of this document is required by each state to formally register a business to conduct business legally.
If an incorporator doesn’t file the Certificate of Incorporation with the state, they won’t have an official legal entity. Thus, properly filing the Certificate of Incorporation is essential for any new business owner intending to start a corporation.
Importantly, a Certificate of Incorporation isn’t called by that name in every state. For example, depending on what state the company is located in, Certificates of Incorporation might instead be referred to as:
No matter what this document is referred to in a particular state, know that it serves the same overall purpose for the corporation.
The exact information an entrepreneur must include in their Certificate of Incorporation (or equivalent formation document) depends on the state of incorporation. However, most states require similar information.
For example, a Certificate of Incorporation must typically include information such as:
As always, entrepreneurs will need to verify that all information is accurate before filing a Certificate of Incorporation.
Technically, not all businesses will need to file a Certificate of Incorporation for their small business. This is because only corporations use a Certificate of Incorporation during their formation process. Conversely, if an entrepreneur is registering a limited liability company, they’d need to file the Articles of Organization — also known in some states as a Certificate of Organization — as their required state formation document. In short, if an entrepreneur is forming a corporation, they’ll use a Certificate of Incorporation, but the form will vary for other entity types.
A Certificate of Incorporation is an important legal document that will serve as the official registration document for a corporation. This document goes by a number of different names in different states. However, regardless of the precise name used in a given state, the purpose of the form stays the same.
A corporation won’t be legally formed until the Certificate of Incorporation is correctly filed with the state. Business owners would be prudent to consult with a legal professional before submitting documents to help ensure that the form is correct.
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Disclaimer: The content on this page is for information purposes only and does not constitute legal, tax, or accounting advice. For specific questions about any of these topics, seek the counsel of a licensed professional.

Written by ZenBusiness Editorial Team
The ZenBusiness Editorial Team has more than 20 years of combined small business publishing experience and has helped over 850,000 entrepreneurs launch and grow their companies. The team’s writers and business formation experts are dedicated to providing accurate, practical, and trustworthy guidance so business owners can make confident decisions.
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