Plumbing Contractor Permit Requirements in Tulsa, OK

Complete permit and license guide for starting a plumbing contractor in Tulsa, Tulsa County, Oklahoma.

Updated 2026-03-15 5 stops $400–$1,200 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 Oklahoma

1 stop

  1. Oklahoma Tax Commission — Sales Tax Permit

    Required for all businesses selling taxable goods or services in Oklahoma. Oklahoma charges a 4.5% state sales tax; local jurisdictions may add up to 7%, making total rates as high as 11.5% in some cities. Register with the Oklahoma Tax Commission online.

    Official government source

    FreeImmediate (online via OkTAP)

City of Tulsa / Tulsa County

3 stops

  1. Oklahoma Construction Industries Board — Plumbing Contractor License

    Plumbing contractors in Oklahoma must hold a Plumbing Contractor License from the CIB. A Master Plumber must be designated. Requires passing a state exam.

    Official government source

    $150–$300 (initial)4–8 weeks

  2. City of Tulsa Finance Department — Sales Tax Division — Business License

    Tulsa requires a Business License and collects a local sales tax. Regulated businesses require additional permits from applicable city departments. 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. Tulsa County / Tulsa Plumbing Permit (per project)

    A separate permit must be pulled with the local building/plumbing department for each job. Inspections are required upon job completion.

    Official government source

    $50–$300 per project1–5 business days

Terminus

Open for business — est. $400–$1,200 · 4–10 weeks to obtain all licenses

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Official Sources

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