Missouri stands out as one of the cheapest, lowest-maintenance states to run an LLC in: a $50 filing fee, no franchise tax, and no annual report to remember every year. What starting a business in Missouri actually involves in 2026 is covered step by step below.
1. Which business structure fits you?
Before registering anything, decide which legal structure actually fits how you plan to run the business.
- Sole proprietorship: the default with no filing required, though you and the business share the exact same legal identity, liability and all.
- Partnership: functionally the same liability picture as a sole proprietorship, just split between two or more owners.
- LLC: the most widely used structure for small Missouri businesses, since it separates business debts and lawsuits from your personal assets.
- Corporation, S-corp or C-corp: more formal and paperwork-heavy, typically adopted once outside investors or multiple shareholders enter the picture.
Our guide on choosing a business structure covers the tradeoffs in more detail if you want to dig further.
The Missouri Secretary of State is the agency that handles LLC and corporation filings statewide. Sole proprietorships and general partnerships never need to appear there.
2. Register your business
Forming an LLC
Missouri LLCs form by filing Articles of Organization with the Secretary of State, for $50 online or $105 by mail. Online submissions are usually approved within a few business days.
Missouri LLCs must maintain a registered agent at a physical in-state address, available during business hours, whether that's you or a hired service. One notable exception: active-duty military members don't pay formation fees at all.
Missouri doesn't mandate an operating agreement by law, but it's the document that spells out how decisions and profits get divided, so multi-member LLCs shouldn't skip it.
Sole proprietorships and DBAs
Sole proprietorships have no reason to file with the Secretary of State to launch. A fictitious name is the exception: that does get registered with the Secretary of State directly, for a small fee, a state-level filing rather than something handled at the county level.
3. Get an EIN
Getting an EIN from the IRS is free and takes roughly 15 minutes online. You'll need one to open a business bank account, bring on employees, or file most business tax forms, even if your LLC is a single-member operation with no staff.
4. Check licenses and permits
There's no single statewide license required in Missouri either. It varies by industry and city: professional licensing for regulated fields, local licenses in some cities, and a retail sales license from the Department of Revenue if you sell taxable goods. Our guides on professional licensing by industry and zoning laws for home businesses cover more.
5. Understand Missouri taxes
Missouri's personal income tax is graduated, topping out at 4.95% after starting at 2%. There's no franchise tax to worry about for pass-through LLCs, since Missouri did away with its corporate franchise tax back in 2016. Elect corporate treatment for your LLC and you'll instead face a flat 4% corporate income tax.
The state-level sales tax base of 4.225% is on the low side nationally, but local additions in places like St. Louis and Kansas City can push the combined rate past 10%.
6. Stay compliant
This section stays short: Missouri is among the handful of states that skip an annual report requirement for LLCs entirely, with no fee to worry about. What's left is keeping a registered agent on file and staying current on whichever state taxes actually apply to your business.
Missouri business costs at a glance
| Item | Cost |
|---|---|
| Articles of Organization (LLC) | $50 online / $105 mail |
| Annual report | Not required |
| Registered agent service (optional) | $50 to $200/year |
| EIN | Free (IRS) |
| State income tax | 2% to 4.95% (progressive) |
| State sales tax | 4.225% + local, up to ~10%+ |
Frequently asked questions
Does Missouri require an annual report for LLCs?
No. Missouri is one of the few states with no annual report requirement at all, and no associated fee.
How much does it cost to form an LLC in Missouri?
$50 online or $105 by mail, with online filings typically approved within a few business days.
What's the personal income tax rate in Missouri?
Graduated, from 2% up to 4.95% at the top.
How high is sales tax in Missouri?
A 4.225% state base, but local additions can push combined rates above 10% in cities like St. Louis and Kansas City.
Are active-duty military members exempt from Missouri's LLC formation fee?
Yes, active-duty military members are exempt from formation fees entirely.
Costs and rates above come from the Missouri Secretary of State and Department of Revenue as of 2026 and may shift over time, so confirm before filing. This isn't legal or tax advice; consult a Missouri-licensed attorney or CPA about your specific situation.