How to Get a Contractor License in Columbia County

Columbia County, with Lake City as its county seat, sits where I-75 meets I-10 in north Florida. Its Building Department administers a county certificate of competency for contractors and keeps a simple filing process for state certified contractors. Here is what the county publishes.

Certified vs. registered in Columbia County

A state certified contractor (license number starting with "C") passed the state exams and can contract anywhere in Florida without meeting local competency rules (F.S. 489.105). A state registered contractor (license number starting with "R") holds a local competency license and can contract only where that local license is recognized (F.S. 489.117).

Columbia County Code Section 26-81 makes it unlawful to carry on the trade of general, building, residential, sheet metal, roofing, A/C, mechanical, pool, electrical, plumbing, solar or specialty contractor in the county without a Columbia County certificate of competency. Section 26-82 makes the Columbia County Building Department responsible for reviewing qualifications, collecting fees and issuing certificates.

Filing a state certified license

For state certified contractors the county uses a one-page form: "With a valid Certified Contractors license the process for putting your license on file is simple." It asks for current (not expired) copies of:

Registered contractors and reciprocity

State registered contractors file the Registered Contractor Application. To use a competency exam from another county, the county's reciprocity sheet (published 10/2025) requires:

• A passing grade of 75% or higher on an exam prepared, proctored and administered by an approved testing authority. The list includes Prometric, Experior/Block and Associates, Pearson VUE and Professional Testing Inc.
• An original reciprocity letter on the sponsoring county's letterhead, the test scores with dates, and five years of complaint history.

The county notes that it "only honors Master license types, not journeyman licenses."

Business tax receipt

The Columbia County Tax Collector issues local business tax receipts on behalf of the Board of County Commissioners, which requires a local business tax for anyone providing merchandise or services to the public. Businesses inside Lake City or Fort White should also check with the city.

Building Department

The Building Department is at 135 NE Hernando Avenue, Lake City, with office hours Monday to Friday, 8:00 AM to 4:30 PM. Forms, including blanket and job-specific agent authorizations, are in the county's Building and Zoning document library.

Cities in Columbia County

Lake City (county seat) and Fort White.

State license guides

The county steps above come after the state license. For the state side, start with the Florida licensing hub and the trade guides: general contractor, roofing, HVAC, plumbing and electrical. Every CILB construction license, Division I or II, requires the Business and Finance exam: 120 questions, 6.5 hours, 70% to pass. Pearson VUE exam performance reports show a 56% first-time pass rate statewide for that exam in 2025.

Columbia County FAQ

How much does it cost to file my state certified license? The county form lists a $15 application fee.

Will Columbia County accept my journeyman card from another county? No. The county honors only master license types for reciprocity.

Which testing companies does Columbia accept for reciprocity? Approved authorities include Prometric, Block and Associates, Pearson VUE and Professional Testing Inc., with 75% or higher.

Who issues the business tax receipt? The Columbia County Tax Collector.

Next step

A state certificate is a simpler way to work here and statewide. Start with Business and Finance using our Florida Business and Finance Exam Prep.