How do I register a business name?

How to Register a Business Name in South Dakota

Registering your business name in South Dakota is a key step when starting a business. It ensures your business identity is unique and legally recognized for operations, marketing, and compliance.

Step-by-Step Process

• Choose a Business Structure: Decide whether your business will be a sole proprietorship, partnership, LLC, corporation, or other entity. This affects the registration process.
• Check Name Availability: Search the South Dakota Secretary of State’s business name database to confirm your desired name is not already in use or too similar to existing names.
• Register Your Business Name:
  • For LLCs, Corporations, and Partnerships: File the formation documents with the South Dakota Secretary of State, which includes registering your business name officially.
  • For Sole Proprietorships or DBAs: File a Trade Name Registration (also called a "Doing Business As" or DBA) with the county where your business operates.
• Pay Required Fees: Fees vary depending on the type of registration. As of 2026, check the Secretary of State’s website for current fee schedules.

Additional Operational Considerations

• Business Licenses and Permits: After registering your name, verify if your business requires local or state licenses to operate legally.
• Tax Registration: Register for applicable state taxes with the South Dakota Department of Revenue, especially if you will collect sales tax or have employees.
• Recordkeeping: Maintain copies of your registration documents and renewal notices for compliance and bookkeeping purposes.
• Renewals: Some registrations may require periodic renewal. Monitor deadlines to keep your business name active.