Plumbing Contractor Permit Requirements in Newark, NJ

Complete permit and license guide for starting a plumbing contractor in Newark, Essex County, New Jersey.

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 New Jersey

1 stop

  1. New Jersey Division of Taxation — Sales Tax Certificate of Authority

    Required for all businesses selling taxable goods or services in New Jersey. New Jersey charges a 6.625% state sales tax. Most services are exempt; retail product sales and certain services are taxable. Register free online via the State of New Jersey Business Registration portal.

    Official government source

    FreeImmediate to 3 business days (online)

City of Newark / Essex County

3 stops

  1. New Jersey Board of Examiners of Master Plumbers — Master Plumber License

    Plumbing contractors in New Jersey must hold a Master Plumber License from the NJ Board of Examiners of Master Plumbers. Requires 3 years of apprenticeship and passing a state exam.

    Official government source

    $150 (initial)4–8 weeks

  2. City of Newark Division of Revenue & Finance — Business License

    The City of Newark requires a Business Registration Certificate for all businesses operating within city limits. Certain business types require additional permits from the Division of Health and Community Wellness. 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. Essex County / Newark 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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