Starting a service business in Missouri

Form your business in Missouri

You form a Missouri LLC by filing Articles of Organization (form LLC-1) with the Corporations Division. The Secretary of State's schedule of fees lists the filing at $50 online and $105 on paper, as listed by the Missouri Secretary of State in October 2026, which makes the online portal at bsd.sos.mo.gov the obvious route. On the paper LLC-1 form you list the company name (ending in LLC, L.L.C., LC or a similar ending), its purpose, a registered agent with a Missouri street address, whether members or managers run it, how long it lasts (perpetual is allowed), and every organizer's signature. The same schedule notes that active duty service members, including the Missouri National Guard, can create a new business with no Secretary of State filing fee under the Startup for Soldiers program.

Ongoing state filings

Missouri's fee schedule lists annual and biennial registration reports under its corporation fees ($20 online, $45 on paper for an annual report) but lists no report fee in its LLC section. We could not find a Secretary of State page that states the LLC rule in plain words, so confirm with the Corporations Division at (866) 223-6535 before you assume nothing is due. Changes to your LLC, such as an amendment, run $25 on the same schedule.

Using a business name (DBA)

If you trade under a name other than your own legal name or your LLC's exact name, register it as a fictitious name with the Secretary of State. The Registration of Fictitious Name (Corp. 56) costs $7, as listed by the Missouri Secretary of State in October 2026, and you can file or renew it online. The form says plainly that the registration expires five years from the filing date and gives the name no protection: another business can still adopt the same name. Renewal is also $7.

Not sure whether you need an LLC at all? Read LLC vs sole proprietor for contractors, then get your free EIN from the IRS.

Licensing for service trades

Missouri has no single state board that licenses general contractors, plumbers or HVAC techs; the Division of Professional Registration's list of boards includes electrical contractors and no general building or plumbing board. Most trade licenses, permits and inspections come from the city or county where the job sits, so rules in St. Louis can differ from those in Springfield or Columbia; ask the building or licensing office in each city where you take work. Electricians get an unusual middle option. Since 2019 the Office of Statewide Electrical Contractors has issued a statewide electrical contractor license, and its own FAQ calls that license "optional, not mandatory": if you only work where you already hold a local license, or where none is required, you can stay local. The appeal is portability, because a city cannot make a statewide license holder pass its own proficiency exam, though it can still require a plain business license. The state also does not issue electrical permits or inspect the work; that stays with the local office. Lawn and pest outfits face a real state license: anyone applying pesticides on someone else's property for pay needs certification as a Commercial Applicator from the Missouri Department of Agriculture.

• Office of Statewide Electrical Contractors (Division of Professional Registration): Optional statewide electrical contractor license, recognized by every city and county in place of a local exam-based license
• Missouri Department of Agriculture, Bureau of Pesticide Control: Commercial Applicator certification ($65 a year as listed in October 2026) and Pesticide Technician licenses for lawn, ornamental, structural and termite work done for hire
• Missouri Division of Professional Registration: Directory of state boards; use it to confirm whether your occupation has a state license before you rely on city rules alone

Workers' compensation

The Missouri Division of Workers' Compensation tells employers they must carry coverage once they have five or more employees, and that construction businesses must carry it with one or more. The division defines construction as employers who "erect, demolish, alter or repair improvements," which can pull in remodelers, roofers, deck builders and many handyman shops. A cleaning company or lawn crew with four workers may fall under the threshold, but the division warns that exempt employers who skip coverage stay exposed to civil lawsuits from injured workers. Missouri is not a state-fund-only state: most employers buy a policy from an insurance carrier, businesses that cannot find one can go to the residual market (the assigned risk pool), and larger employers or groups can apply to the division to self-insure.

More on coverage: business insurance for contractors.

Sales tax on services

Missouri's 4.225 percent state sales tax, plus local rates, applies to tangible goods and a defined list of taxable services, per the Department of Revenue. Its taxable services list covers admissions and amusement, utilities, telecommunications, lodging and meals, certain passenger transport, and labor used to fabricate a product sold at retail. Cleaning, mowing, washing and repair labor do not appear on that list, but anything you sell as a product (a part, a bag of mulch, a filter handed to the customer) can be taxable. If you make taxable sales, the department says you need a sales tax license through its online registration system or Form 2643, and you must file a return for each period even when no tax is due. Ask the department about your exact mix of labor and materials before your first invoice.

Recording business calls in Missouri

Under RSMo 542.402, it is not unlawful to record a wire communication you are a party to, or one where any party has agreed to the recording, as long as you are not doing it to commit a crime or a tort. So a Missouri business can record its own customer calls, but if a caller is in an all-party state, the stricter rule may reach you, so a short recording notice is the safer habit. Setup tips are in our call recording guide.

See our guide to recording business calls before you turn on call recording or an AI receptionist.

How the seasons shape the work

Missouri sits where hot, humid summers meet ice storms, so the work calendar swings hard. Lawn, pest and pressure washing demand runs from spring green-up through the long, sticky summer, while late-spring severe storms and hail drive roofing, gutter and tree work. Winters vary across the state: the north sees more snow and freezing, the Bootheel stays milder, and a single ice event around St. Louis or Kansas City can fill a snow and salting crew's schedule overnight.

Statewide electrician license versus city licenses

If you plan to wire jobs in both Kansas City and its suburbs, or along the I-70 corridor, look hard at the statewide electrical contractor license. The Office of Statewide Electrical Contractors says a holder must carry $500,000 in liability insurance, and that cities may still ask for a general business license but cannot require their own exam. Permits and inspections still come from each local building department, so the statewide license saves testing, not paperwork.

Pesticide licensing for lawn care

Weed and feed programs are where a mowing business most often crosses into state licensing. The Department of Agriculture requires Commercial Applicators to pass a core exam and at least one category exam, show proof of insurance or a bond, and renew the license every year. Crew members applying general use products under a certified applicator's supervision need a Pesticide Technician license.

Then set up the back end that gets you hired

The paperwork makes you legal. Customers still have to find you, reach you and pay you. Before your first job, set up a business phone number, email on your own domain, a Google Business Profile, a simple website, and a way to send quotes and take card payments. The launch checklist lays out the order.

Missouri questions