Starting a Business in Missouri: 8 Steps (2027)

This post is for information only. You are responsible for reviewing and using this information appropriately. This content doesn’t contain and isn’t meant to provide legal, tax, or business advice. Requirements are updated frequently and you should make sure to do your own research and reach out to professional legal, tax, and business advisers, as needed. To sell products using the Shopify platform, you must comply with the laws of the jurisdiction of your business and your customers, the Shopify Terms of Service, the Shopify Acceptable Use Policy, and any other applicable policies.

Missouri retailers selling taxable goods or services must obtain a state sales tax license. Businesses may also need city or county licenses and professional permits before opening. Check the rules for the planned location and business activity before making sales.

The US Small Business Administration’s (SBA) 2026 Missouri profile reports 29,596 small businesses opened between March 2024 and March 2025.

This guide explains how to research a business idea, compare legal structures, and register with the state. It also covers the licensing, insurance, and financial decisions involved in starting a business in Missouri.

8 steps to starting a business in Missouri

Follow these eight steps to plan, register, and launch a business in Missouri:

1. Choose a business idea
2. Name your business
3. Create a business plan
4. Choose a business structure and get started
5. Obtain business licenses and permits
6. Examine business insurance options in Missouri
7. Understand financial considerations
8. Market your business

1. Choose a business idea

Choose a product or service for a specific customer group. Conduct market research to understand what prospective customers buy, what they pay, and which competitors already serve them.

Decide whether to sell to consumers or businesses, online or through a physical location. Estimate the selling price and cost of each sale, then calculate the sales volume needed to cover overhead and earn a profit. The SBA offers a break-even calculator for this calculation.

2. Name your business

Choose a memorable name, and check if it’s available using Missouri’s business search tool. Businesses must follow these naming rules:

• Distinguish the entity name. Names must be distinguishable in state records from existing and reserved entity names.
• Use the correct designation. Limited liability company (LLC) names need “limited liability company,” “limited company,” or an approved abbreviation. Corporation names need “corporation,” “company,” “incorporated,” “limited,” or an abbreviation. Names must avoid implying government affiliation.
• Register a trading name. A sole proprietor operates under the owner’s true name by default. Using another name calls for a Fictitious Name Registration, Missouri’s term for a DBA (“doing business as”). Filing costs $7 and lasts five years. Renew during the six months before expiration. Multiple businesses can register the same fictitious name.
• Reserve the entity name if needed. A $25 reservation fee ($30 for limited liability partnerships) holds a name for 60 days, with two additional 60-day extensions available.

Check domain and social handle availability before committing to a name.

3. Create a business plan

Write a business plan that explains what the business will sell and who will buy it. Describe how orders will be fulfilled and customers reached. Estimate startup costs and monthly expenses, then forecast revenue and funding needs.

In a 2025 Shopify survey of store owners, 34% said they wrote a business plan before starting.*

Use a template to organize the research and financial projections. The SBA provides sample plans for both detailed proposals and shorter, one-page plans.

4. Choose a business structure and get started

Compare these structures’ formation costs and ongoing obligations:

Sole proprietorship

A sole proprietorship is a business owned and operated by one person. The owner controls business decisions and reports profits on their personal tax return.

Limited liability company (LLC)

A limited liability company has one or more owners, called members. It generally protects members’ personal assets from business debts and offers flexibility in management and tax treatment.

Corporation

A C corporation is a separate legal entity that allows ownership by shareholders. It can raise money by issuing stock and generally protects shareholders’ personal assets from business debts.

Getting a federal employer identification number (EIN)

Corporations and employers generally need a federal employer identification number (EIN). Apply free through the IRS after forming the entity.

Incorporating within Missouri

File articles of organization for an LLC or articles of incorporation for a corporation. Appoint a registered agent with a Missouri street address to receive legal documents.

5. Obtain business licenses and permits

Check the city or county’s licensing rules and any professional licensing requirements before opening. Employers must also register for Missouri withholding and unemployment taxes when applicable.

Local business and merchant licenses have these fees and renewal schedules:

City and county licenses may both apply to the same business. Industry licenses, permits, and inspections may add charges.

Missouri retail sales license

Missouri businesses selling taxable goods or services to consumers must obtain a retail sales tax license before making sales. Apply through the Department of Revenue’s online registration portal. Registration is free.

The standard state sales tax rate is 4.225%, plus applicable city, county, and district taxes. Use Missouri’s address-based tax lookup to check the combined rate.

Unlicensed goods sales can trigger penalties of up to $500 for the first day and $100 per additional day, capped at $10,000. The statute provides a 20-day exception to this penalty for people opening their first Missouri business. Operating without a business license can also lead to criminal prosecution.

After registering, follow Shopify’s US sales tax setup. In the Shopify admin, go to Settings > Taxes and duties. In the Manage sales tax collection section, click United States. In the Regions you’re collecting in the section, click on Collect sales tax and select Missouri. Add the sales tax ID to configure collection.

6. Examine business insurance options in Missouri

Compare policies covering employee injuries, customer claims, and losses from interrupted operations:

• Workers’ compensation insurance. Covers job-related injuries and illnesses. Missouri employers with five or more employees generally need coverage. Construction employers need coverage with one or more. LLC members and corporate officers count toward the threshold, as do part-time and family employees. Sole proprietors and partners are excluded from this count.
• General liability insurance. Covers certain third-party injury and property damage claims, such as a customer’s slip-and-fall injury.
• Professional liability insurance. Covers claims involving errors, negligence, or harmful advice in professional services.
• Business interruption insurance. Helps replace lost income and pay ongoing expenses when covered property damage forces a temporary closure.

7. Understand financial considerations

Budget for the filings and licenses that apply to the business.

The state filing schedule has formation and name registration fees for further review.

Don’t forget to account for city and county business licenses, industry licenses, and any special permits needed.

Keep business income and expenses in a business bank account to separate personal spending and document business transactions.

Shopify Balance is a business financial account in the Shopify admin. With the main Balance account receiving Shopify Payments payouts, enable sales tax set-aside to reserve tax funds automatically. Reconcile those amounts with tax returns and arrange filing and payment separately.

8. Market your business

In a 2025 Shopify survey of store owners, 53% named word of mouth their most common first-year growth strategy, while 37% named marketing their single biggest first-year challenge.*

Use Shopify’s marketing plan template to define the target customer, set a budget, and plan initial campaigns. Choose one or two channels that reach those customers. Ask satisfied buyers for referrals, track which campaigns generate orders, and review results before increasing spending.

*Based on a 2025 survey of 500 Shopify merchants conducted in English across Australia, Canada, the United Kingdom, Ireland, New Zealand, and the United States. Respondents were established merchants with two or more years on the platform. Results reflect the experiences of this specific sample and may not be representative of all merchants.