Plumbing Contractor Permit Requirements in Columbia, SC

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. South Carolina Department of Revenue — Retail License

   Every person who engages in business in South Carolina as a retailer must obtain a Retail License from the SC Department of Revenue before making any retail sales subject to sales and use tax, including internet sales and infrequent sales. A separate licence is required for each retail outlet. The licence does not have to be renewed while the same taxpayer keeps operating at the same location, but a new application is required after a change of ownership or after 24 months with no sales.

   Official government source

   $50 per location, non-refundable, and it is a one-time fee rather than an annual charge (S.C. Code Section 12-36-510(A)(1)). The statewide sales and use tax rate is 6%; SCDOR states counties may impose an additional 1% local sales tax where voters approve it, and the applicable local rates are published in forms ST-500 and ST-575.·Not published by SCDOR. Applying through MyDORWAY is the fastest route — confirm current issuance time when you apply.

   $50 per location, non-refundable, and it is a one-time fee rather than an annual charge (S.C. Code Section 12-36-510(A)(1)). The statewide sales and use tax rate is 6%; SCDOR states counties may impose an additional 1% local sales tax where voters approve it, and the applicable local rates are published in forms ST-500 and ST-575.

   Not published by SCDOR. Applying through MyDORWAY is the fastest route — confirm current issuance time when you apply.

1. South Carolina Contractor's Licensing Board — Mechanical (Plumbing) Contractor License

   South Carolina does not issue a standalone 'plumbing contractor' license. Plumbing work above the statutory threshold is licensed by LLR's Contractor's Licensing Board under the Mechanical contractor classification, which also covers electrical and HVAC (S.C. Code Title 40, Chapter 11). Applicants pass the examination for the classification and demonstrate experience; a surety bond and financial statement are required depending on the license group. Mechanical contractor licenses expire 31 October of every odd-numbered year.

   Official government source

   $350 initial General and Mechanical Contractor license fee, per LLR's published Contractor's Licensing Board fee schedule. Biennial renewal is $135 if paid on time; reinstatement is $350.·Not published by the board. Timing depends on exam scheduling and review of the required financial statement — confirm with the Contractor's Licensing Board.

   $350 initial General and Mechanical Contractor license fee, per LLR's published Contractor's Licensing Board fee schedule. Biennial renewal is $135 if paid on time; reinstatement is $350.

   Not published by the board. Timing depends on exam scheduling and review of the required financial statement — confirm with the Contractor's Licensing Board.

2. City of Columbia Business License

   Every business with a location inside Columbia city limits must hold a general business licence from the City of Columbia Business Licensing Division. The licence is renewed each year and must be displayed at your place of business. Applications and renewals are handled through the Business Licensing Self-Service Portal. Zoning compatibility for the business address is confirmed separately through Planning & Development.

   Official government source

   Based on gross income and the NAICS rate class under the SC Business License Tax Standardization Act (S.C. Code Section 6-1-400 et seq.) — there is no flat fee. For a new business the fee is projected from the start-of-business date through December 31; at renewal it is based on the previous year’s reported gross income. Use the city’s rate-class schedule to calculate your amount.·All Columbia business licences expire April 30, with the licence year running May 1 to April 30 and renewal season opening in February. Fastest through the Self-Service Portal; the city warns that mailed renewals can take six to eight weeks between February and June.

   Based on gross income and the NAICS rate class under the SC Business License Tax Standardization Act (S.C. Code Section 6-1-400 et seq.) — there is no flat fee. For a new business the fee is projected from the start-of-business date through December 31; at renewal it is based on the previous year’s reported gross income. Use the city’s rate-class schedule to calculate your amount.

   All Columbia business licences expire April 30, with the licence year running May 1 to April 30 and renewal season opening in February. Fastest through the Self-Service Portal; the city warns that mailed renewals can take six to eight weeks between February and June.

3. City of Columbia Plumbing Permit

   Plumbing work on a commercial or multi-family project inside Columbia requires a Plumbing Permit from the Planning & Development Department’s Development Center, filed on the city’s Plumbing Permit Application or through the Access Columbia portal, with contractor qualifications on file. Inspections are required as the work progresses and at completion. Outside city limits the permit comes from Richland County instead.

   Official government source

   Plumbing permits are billed on the city’s Building and Trade Permit schedule by value of work: $50.00 for $1 to $5,000; $50.00 for the first $5,000 plus $9.00 per $1,000 or fraction from $5,001 to $100,000; $905.00 for the first $100,000 plus $4.00 per $1,000 from $100,001 to $1,000,000. A plan review fee equal to 30% of the permit fee is due if plans go to a third review.·Not published by the city. Applications go through the Access Columbia portal or by email to the Development Center (803-545-3420); inspections are requested at 803-545-3422.

   Plumbing permits are billed on the city’s Building and Trade Permit schedule by value of work: $50.00 for $1 to $5,000; $50.00 for the first $5,000 plus $9.00 per $1,000 or fraction from $5,001 to $100,000; $905.00 for the first $100,000 plus $4.00 per $1,000 from $100,001 to $1,000,000. A plan review fee equal to 30% of the permit fee is due if plans go to a third review.

   Not published by the city. Applications go through the Access Columbia portal or by email to the Development Center (803-545-3420); inspections are requested at 803-545-3422.

Official Sources

• South Carolina Department of Labor, Licensing and Regulation — Plumbing Contractor License
• City of Columbia Business License Division

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