How to Start a Business in Missouri

Select the legal structure that best fits your business needs: Sole Proprietorship, Partnership, Corporation (C-Corp or S-Corp), or Limited Liability Company (LLC). Each has different liability protection, tax implications, and compliance requirements.

Research your market, competitors, and target customers. Create a comprehensive business plan to guide your operations and attract potential investors or lenders.

Determine your funding needs and explore options such as personal savings, loans, grants, or investors. Missouri offers various programs to help businesses get started.

Select a unique business name that complies with Missouri naming requirements. Search for availability and consider reserving the name while you complete other formation steps.

File the appropriate formation documents with the Missouri Secretary of State based on your chosen business structure. This legally establishes your business entity.

Appoint someone to receive legal documents on behalf of your LLC or corporation in Missouri. This can be yourself, an employee, or a professional service.

Get a free Employer Identification Number from the IRS for tax and banking purposes. Required for most business structures and essential for opening business bank accounts.

Register with the Missouri Department of Revenue for applicable state taxes including sales tax, withholding tax, and use tax depending on your business activities.

Research and obtain all necessary business licenses and permits at the federal, state, and local levels. Requirements vary significantly by industry and location.

If you plan to hire employees, understand and comply with Missouri employment laws including workers' compensation insurance, unemployment insurance, and new hire reporting requirements.

Draft essential internal documents such as Operating Agreements for LLCs or Bylaws for Corporations that outline ownership structure, management responsibilities, and operational procedures.

Separate your business and personal finances by opening a dedicated business bank account. This is essential for tax purposes and maintaining your legal entity status.

Protect your business with appropriate insurance coverage including general liability, professional liability, property insurance, and workers' compensation if you have employees.

Implement an accounting system to track income, expenses, and tax obligations. Consider using accounting software or hiring a professional accountant or bookkeeper.

Understand and comply with annual filing requirements to maintain your business in good standing with the Missouri Secretary of State. Requirements vary by business structure.

Maintain ongoing compliance with federal, state, and local tax obligations including annual tax filings, quarterly payroll taxes, and estimated tax payments as applicable.