Plumbing Contractor Permit Requirements in Annapolis, MD

Complete permit and license guide for starting a plumbing contractor in Annapolis, Anne Arundel County, Maryland.

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 Maryland

1 stop

  1. Maryland Comptroller — Sales Tax Registration

    Required for all businesses selling taxable goods or services in Maryland (6% state rate; Maryland has no local sales taxes). Retail product sales are taxable. Some services are also taxable — notably cleaning of a COMMERCIAL or industrial building (janitorial/commercial cleaning) under Md. Tax-General §11-101(m): commercial cleaning businesses must collect 6% on the service itself, while residential cleaning is not taxable. Sales of photographs (portrait/wedding) are taxable as tangible personal property. Registration with the Comptroller of Maryland is free.

    Official government source

    FreeImmediate (online via bFile)

City of Annapolis / Anne Arundel County

3 stops

  1. Maryland Board of Plumbing — Master Plumber License

    Master Plumbers in Maryland must be licensed by the Maryland Board of Plumbing. Requires passing a state exam and demonstrating apprenticeship experience.

    Official government source

    $200 (initial)4–8 weeks

  2. City of Annapolis Department of Finance — Business License

    The City of Annapolis requires a Business License in addition to any state or county requirements. 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. Anne Arundel County / Annapolis 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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