Mowing, planting, hardscape and grading need no Missouri state trade credential. Chemicals change that: applying or determining the need for any pesticide on the lands of another for compensation requires a Certified Commercial Applicator license from the Missouri Department of Agriculture (RSMo § 281.035), certified in Category 3 — Ornamental and Turf Pest Control (2 CSR 70-25.100) — with at least $50,000 per-occurrence insurance or bond (§ 281.065).
Crew members who spray general-use products under a certified applicator's direct supervision need a $35 Pesticide Technician license in Category 3. Line-voltage lighting circuits are electrical contracting; the statewide electrical act excludes class two and three power-limited circuits (§ 324.915(6)), though local codes may still regulate low-voltage work.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
Pesticide licensing is state-only and preempts local ordinances (RSMo § 281.005). Everything else — business licenses, retaining-wall and grading permits, irrigation and electrical permits — is set by the city or county.
The local offices section below names the exact permit desk for every Missouri county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
Missouri issues no state landscaping license, so the state-fee line is genuinely $0. Your costs are local licenses, permits and insurance.
Applying — or deciding a client needs — any pesticide for pay is commercial application, including general-use weed-and-feed products.
RSMo § 281.005 preempts local pesticide ordinances, so applicator rules don't change from city to city.
A practical sequence for a new landscaping contractor in Missouri. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Violating the Pesticide Use Act or its rules is a misdemeanor, licensed or not.
The director may assess civil penalties and order restitution after inquiry and hearing.
An employer who knowingly fails to insure its workers' compensation liability commits a crime and owes the state a separate money penalty; a repeat offense is a felony.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
Every fact in this file was checked against these official sources on October 2026.
Pending verification: Whether any Missouri city requires a local license for landscape irrigation or backflow work · Whether specific Missouri cities require an electrical license for low-voltage landscape lighting · Specific contractor-licensing requirements of St. Louis City, St. Louis County, Springfield and Columbia (not retrieved from those governments' sites)
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.