How do I check if a business name is available?

How to Check if a Business Name is Available in Illinois

Before registering your business in Illinois, it is essential to verify that your desired business name is available. This step helps avoid conflicts with existing businesses and ensures compliance with state naming rules.

Steps to Check Business Name Availability

• Use the Illinois Secretary of State's Online Database: Visit the Illinois Secretary of State’s website and access the Corporation/LLC Name Search tool. This database allows you to search existing business entities to see if your proposed name is already in use or reserved.
• Check for Trademarks: Conduct a search on the United States Patent and Trademark Office (USPTO) website to ensure the name is not federally trademarked. This prevents potential trademark infringement issues.
• Review Naming Guidelines: Make sure your business name complies with Illinois naming requirements, such as avoiding prohibited words and including the appropriate entity designators (e.g., LLC, Inc.).
• Consider Domain Name Availability: For operational efficiency and branding, check if the domain name matching your business name is available for your website and email setup.

Additional Operational Considerations

• Business Registration: After confirming name availability, proceed with registering your business name with the Illinois Secretary of State as part of your formation process.
• Recordkeeping: Keep documentation of your name search and reservation or registration confirmation for your business records and compliance audits.
• Licensing and Permits: Some local licenses or permits may require the exact registered business name, so ensure consistency across all filings.
• Automation Tools: Utilize business management platforms that integrate name availability checks and registration to streamline operations.

As of 2026, using the official Illinois Secretary of State online resources remains the most reliable and efficient method to verify business name availability before proceeding with registration and licensing steps.