Plumbing Contractor Permit Requirements in Oklahoma City, OK

1. EIN (Employer Identification Number)

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

   Official government source

   Free·Immediate (online application)

   Free

   Immediate (online application)

1. Oklahoma Tax Commission — Sales Tax Permit

   Required for any vendor selling taxable goods or services in Oklahoma. Register with the Oklahoma Tax Commission online through OkTAP. Oklahoma levies 4.5% state sales tax; cities and counties add their own local rates on top, so the combined rate depends on the delivery address — look it up on the OTC rate charts rather than assuming a statewide maximum.

   Official government source

   $20 for a three-year permit, plus $10 for each additional place of business (also valid three years), per 68 O.S. Sec 1364(A) and (E). Registration is not free.·Apply online via OkTAP. An initial application may be issued a probationary permit effective six (6) months that automatically renews for an additional thirty (30) months unless the Tax Commission gives written notice of refusal (68 O.S. Sec 1364(B)).

   $20 for a three-year permit, plus $10 for each additional place of business (also valid three years), per 68 O.S. Sec 1364(A) and (E). Registration is not free.

   Apply online via OkTAP. An initial application may be issued a probationary permit effective six (6) months that automatically renews for an additional thirty (30) months unless the Tax Commission gives written notice of refusal (68 O.S. Sec 1364(B)).

1. Oklahoma Construction Industries Board — Plumbing Contractor License

   Plumbing contractors in Oklahoma must hold a Plumbing Contractor License from the Construction Industries Board. The applicant must meet Journeyman-level experience plus one additional year in the trade and pass the CIB examination; CIB rules impose no separate 'Master Plumber' designation. An active contractor must maintain a $5,000 corporate surety bond payable to the Board (or $5,000 cash or a certificate of deposit held for bonding) and carry liability insurance of at least $50,000 with the Board notified of any change.

   Official government source

   $330 initial ($30 contractor application plus $300 initial contractor license fee); $200 annual renewal, with a $100 late fee (OAC 158:30-9-2).·Not published by CIB; contact the Board for current application and examination processing times.

   $330 initial ($30 contractor application plus $300 initial contractor license fee); $200 annual renewal, with a $100 late fee (OAC 158:30-9-2).

   Not published by CIB; contact the Board for current application and examination processing times.

2. City of Oklahoma City — Business Licensing (category-specific; no general business license)

   Oklahoma City does not require a general business license and has no 'Business Development Department.' The Business Licensing division (Development Services) licenses only an enumerated list of categories: advertising, airport/heliport, amusement, auction sales, beverage bottling, charitable solicitation, coin-operated devices, commercial vehicle parking, day care and day camp, dry cleaning, employment agency, food service establishment, hotel/motel, kennel, massage establishment, mobile home park, outdoor sellers, pawnbroker, used auto dealer, used merchandise, and vehicle food and frozen dessert sales. Most business types — including real estate, personal training, contracting trades (which instead require Contractor Registration), pest control, home bakery, landscaping, pressure washing, yoga and fitness studios, salons and barber shops, handyman, cleaning services, auto repair, photography, notary, pet sitting, and tutoring — need no City of Oklahoma City business license.

   Official government source

   Varies by category — for example Kennel $100/year, Massage Establishment $200/year, Food Service Establishment $140/year, Day Care and Day Camp $92.50 plus $1 per child, Hotel/Motel $110.40, Pawnbroker $80, Coin-Operated Device $50. Business types outside the licensed list pay nothing.·Varies by license category; confirm with the City of Oklahoma City Business Licensing division (Development Services, 405-297-2900).

   Varies by category — for example Kennel $100/year, Massage Establishment $200/year, Food Service Establishment $140/year, Day Care and Day Camp $92.50 plus $1 per child, Hotel/Motel $110.40, Pawnbroker $80, Coin-Operated Device $50. Business types outside the licensed list pay nothing.

   Varies by license category; confirm with the City of Oklahoma City Business Licensing division (Development Services, 405-297-2900).

3. City of Oklahoma City Plumbing Permit (per project)

   A plumbing permit must be pulled from City of Oklahoma City Development Services for each job, and inspections are required on completion. Plumbers must hold a state Construction Industries Board license and register with the City as a plumbing contractor. Oklahoma County does not issue trade permits inside city limits.

   Official government source

   Permit fees are set in Oklahoma City Municipal Code Title 42 and vary by job; the City's plumbing contractor registration is $100 per year. Confirm current permit amounts with Development Services (405-297-2948, option 3).·Not published; inspections are requested through the online portal or 405-316-5656 — confirm current turnaround with Development Services (405-297-2948, option 3).

   Permit fees are set in Oklahoma City Municipal Code Title 42 and vary by job; the City's plumbing contractor registration is $100 per year. Confirm current permit amounts with Development Services (405-297-2948, option 3).

   Not published; inspections are requested through the online portal or 405-316-5656 — confirm current turnaround with Development Services (405-297-2948, option 3).

Official Sources

• Oklahoma Construction Industries Board — Plumbing Contractor License
• City of Oklahoma City Business Development Department

Related Guides