Plumbing Contractor Permit Requirements in Casper, WY

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. Wyoming Department of Revenue — Sales Tax License

   Required for all businesses selling taxable goods or services in Wyoming. Wyoming charges a 4% state sales tax; counties may add up to 2% and optional resort taxes may apply. Register with the Wyoming Department of Revenue online.

   Official government source

   $60 one-time sales/use tax license fee (W.S. § 39-15-106(a))·Immediate (online)

   $60 one-time sales/use tax license fee (W.S. § 39-15-106(a))

   Immediate (online)

1. Wyoming Plumbing Board — Plumbing Contractor License

   Plumbing contractors in Wyoming must hold a Plumbing Contractor License from the Wyoming Plumbing Board. A Master Plumber must be designated. Requires passing a state exam.

   $100–$200 (initial)·4–8 weeks

   $100–$200 (initial)

   4–8 weeks

2. City of Casper City Clerk — Business License

   Casper requires a Business License for regulated businesses within city limits. Contact the City Clerk for requirements specific to your business type. This license must be renewed annually and displayed at your place of business.

   Official government source

   $50–$500/year depending on business type and gross revenues·1–3 weeks

   $50–$500/year depending on business type and gross revenues

   1–3 weeks

3. Natrona County / Casper 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.

   Official government source

   $50–$300 per project·1–5 business days

   $50–$300 per project

   1–5 business days

Official Sources

• Wyoming Plumbing Board — Plumbing Contractor License
• City of Casper City Clerk

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