Plumbing Contractor Permit Requirements in New Orleans, LA

Complete permit and license guide for starting a plumbing contractor in New Orleans, Orleans County, Louisiana.

$400 -- $1200 4–10 weeks to obtain all licenses 5 requirements

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

New Orleans / Orleans County Requirements

3 requirements
1

Louisiana State Plumbing Board — Master Plumber License

Plumbing contractors in Louisiana must hold a Master Plumber License from the Louisiana State Plumbing Board. Requires journeyman experience and passing a state board exam.

$150–$300 (initial)4–8 weeks
Official government source
2

City of New Orleans Bureau of Revenue / Department of Safety and Permits — Business License

New Orleans requires a City Business License (Annual Business Tax) and a Certificate of Occupancy for all businesses. The Bureau of Revenue handles business taxes; the Department of Safety and Permits handles occupancy and zoning. This license must be renewed annually and displayed at your place of business.

$50–$500/year depending on business type and gross revenues1–3 weeks
Official government source
3

Orleans County / New Orleans 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.

$50–$300 per project1–5 business days
Official government source

Louisiana State Requirements

1 requirement
1

Louisiana Department of Revenue — Sales Tax Registration

Required for all businesses selling taxable goods or services in Louisiana. Louisiana's state sales tax rate is 4.45%. Louisiana has a complex tax structure with local parish sales taxes that can bring the total rate to 8–12%. Register with the Louisiana Department of Revenue and separately with each applicable parish.

Free1–5 business days (online)
Official government source

Federal Requirements

1 requirement
1

EIN (Employer Identification Number)

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

FreeImmediate (online application)
Official government source

Official Sources

Get your personalized permit checklist

Find out exactly which permits and licenses your plumbing contractor needs in New Orleans, LA — with costs, timelines, and official links.

Get Your Permit Report — $9.99
Ready in ~60 seconds Secure payment via Stripe Official links & citations

Related Guides

Stop guessing about permits

Know exactly what permits your business needs

Get a personalized permit report with every license, registration, and permit required for your business — with costs, timelines, and official application links.

Ready in ~60 seconds Secure payment via Stripe 50 states, 4,000+ jurisdictions