Plumbing Contractor Permit Requirements in Indianapolis, IN
Complete permit and license guide for starting a plumbing contractor in Indianapolis, Marion County, Indiana.
Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .
Indianapolis / Marion County Requirements
3 requirementsIndiana Plumbing Commission — Master Plumber License
All plumbing contractors in Indiana must hold a Master Plumber License issued by the Indiana Plumbing Commission. Requires 4 years of apprenticeship and passing a state exam.
Indianapolis Department of Business and Neighborhood Services — Business License
Indianapolis (Marion County) requires a Commercial Zoning Certificate and may require a Business License depending on the business type. This license must be renewed annually and displayed at your place of business.
Marion County / Indianapolis 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.
Indiana State Requirements
1 requirementIndiana Department of Revenue — Registered Retail Merchant Certificate
Required for all businesses selling tangible personal property at retail in Indiana. Indiana charges a flat 7% state sales tax with no additional local sales tax. Register online via INBiz.
Federal Requirements
1 requirementEIN (Employer Identification Number)
Required if you have employees or operate as an LLC or corporation. Free from the IRS.
Official Sources
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