Plumbing Contractor Permit Requirements in Columbia, SC

Complete permit and license guide for starting a plumbing contractor in Columbia, Richland County, South Carolina.

Updated 2026-03-14 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 South Carolina

1 stop

  1. South Carolina Department of Revenue — Retail License

    Required for all businesses selling tangible personal property at retail in South Carolina. South Carolina charges a 6% state sales tax; local jurisdictions may add up to 3% more. A $50 one-time license fee applies.

    Official government source

    $50 one-timeImmediate (online via MyDORWAY)

City of Columbia / Richland County

3 stops

  1. South Carolina Department of Labor, Licensing and Regulation — Plumbing Contractor License

    Plumbing contractors in South Carolina must be licensed by SC LLR. Requires passing a Master Plumber exam and demonstrating experience in the trade.

    Official government source

    $150–$250 (initial)4–8 weeks

  2. City of Columbia Business License Division — Business License

    The City of Columbia requires an annual Business License for all businesses with a location within city limits. The fee is based on gross revenues. 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. Richland County / Columbia 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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