Plumbing Contractor Permit Requirements in Hilo, HI
Complete permit and license guide for starting a plumbing contractor in Hilo, Hawaii County, Hawaii.
Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .
Hilo / Hawaii County Requirements
3 requirementsHawaii Board of Plumbing — Plumbing Contractor License
Plumbing contractors in Hawaii must hold a C-42 Plumbing Contractor License from the Hawaii Contractors License Board. Requires a Master Plumber and passing a state exam.
County of Hawaii Finance Department — Business License
Hilo (Hawaii County) requires a County business registration and applicable permits. Contact the County Finance Department for business license requirements. This license must be renewed annually and displayed at your place of business.
Hawaii County / Hilo 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.
Hawaii State Requirements
1 requirementHawaii Department of Taxation — General Excise Tax License
Hawaii does not have a traditional sales tax but requires all businesses to pay a General Excise Tax (GET) on gross income from business activities. The GET rate is 4% (4.5% in Honolulu). All businesses must register for a GET license with the Hawaii Department of Taxation.
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
Related Guides
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