Electrical Contractor Permit Requirements in St. Louis, MO

Complete permit and license guide for starting a electrical contractor in St. Louis, St. Louis City County, Missouri.

Updated 2026-03-14 5 stops $400–$1,500 est. 4–10 weeks to obtain all licenses
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Not legal advice. Requirements may change — always verify with your local government authority before applying. This guide was compiled from public and official sources (last updated ) and has not yet been independently source-verified — confirm each requirement before acting on it.

Federal — start here

1 stop

  1. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS.

    Official government source

    FreeImmediate (online application)

State of Missouri

1 stop

  1. Missouri Department of Revenue — Sales Tax License

    Required for all businesses selling taxable goods in Missouri. The state rate is 4.225%; local rates vary by city and county. Register online with the Missouri Department of Revenue.

    Official government source

    FreeImmediate (online application)

City of St. Louis / St. Louis City County

3 stops

  1. Missouri Electrical Contractor License (local jurisdictions)

    Missouri does not issue a statewide electrical contractor license; licensure is managed by local jurisdictions. Kansas City and St. Louis both require separate electrical contractor licenses.

    Official government source

    Varies by city ($100–$400)2–6 weeks

  2. City of St. Louis License Collector — Business License

    St. Louis City is an independent city (not part of St. Louis County) and requires a Business License from the License Collector's office. This license must be renewed annually and displayed at your place of business.

    Official government source

    $50–$500/year depending on business type and gross revenues1–3 weeks

  3. St. Louis City County / St. Louis Electrical Permit (per project)

    An electrical permit must be obtained from the local building department for each electrical project. A final inspection is required upon completion.

    Official government source

    $50–$400 per project1–5 business days

Terminus

Open for business — est. $400–$1,500 · 4–10 weeks to obtain all licenses

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Official Sources

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