Plumbing Contractor Permit Requirements in Columbus, OH

Complete permit and license guide for starting a plumbing contractor in Columbus, Franklin County, Ohio.

$500 -- $1500 6–10 weeks to obtain all licenses and permits 5 requirements

Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .

Columbus / Franklin County Requirements

2 requirements
1

City of Columbus Plumbing Contractor License

The City of Columbus, Department of Building and Zoning Services, requires all plumbing contractors working within the city to hold a Columbus Plumbing Contractor License. A Columbus-licensed Master Plumber must qualify the contracting license. Exams are administered locally. The license must be renewed annually.

$100/year (contractor license)2–4 weeks (includes exam if needed)
Official government source
2

Columbus Business License / Vendor's License

Businesses providing taxable services in Columbus must obtain a Vendor's License from the Ohio Department of Taxation. No separate city business license is required for contractors, but a vendor's license is needed if collecting sales tax on materials.

$25 (one-time vendor's license fee)1–3 days
Official government source

Ohio State Requirements

2 requirements
1

Ohio Plumbing License — State vs. Local

Ohio does not issue a statewide plumbing contractor license. Plumbing contractor licensing is handled at the municipal level. However, plumbers must hold a valid Ohio Plumber's license (Journeyman or Master) issued by the Ohio Construction Industry Licensing Board (OCILB) for residential work, or a city-issued license for commercial work.

$25–$75 (OCILB license)4–8 weeks
Official government source
2

Ohio Business Entity Registration (if applicable)

LLCs and corporations must register with the Ohio Secretary of State.

$99 (LLC filing fee)3–5 business days (online filing)
Official government source

Federal Requirements

1 requirement
1

EIN (Employer Identification Number)

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

FreeImmediate (online application)
Official government source

Official Sources

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