Idaho Contractor License BondsTrade-Specific: $2,000-$10,000

No. Idaho does not require statewide licensing for general contractors. However, specific trades -- plumbing, HVAC, and electrical -- require state licensing through the Division of Occupational and Professional Licenses (DOPL, formerly Division of Building Safety). Additionally, individual cities require contractor registration with bonds ranging from $10,000 to $25,000.

Through DOPL: Plumbing contractors need a $2,000 bond ($22.50 application fee). HVAC contractors need a $2,000 bond ($35 application fee). Electrical bonds range from $2,000 for journeymen to $10,000 for electrical contractors. As of October 2025, the Idaho Contractors Board has begun transitioning to biennial registration cycles.

The City of Boise requires contractors to register and post a $25,000 surety bond before performing construction work within city limits. Registration must be renewed annually. Both general contractors and specialty contractors need Boise registration if working within the city.

Costs depend on the bond amount and your credit. A $2,000 trade bond costs $20-$200 per year. A $10,000 Nampa municipal bond costs $100-$400. A $25,000 Boise bond costs $250-$1,000 per year. Contractors with excellent credit often qualify for rates as low as 1-2% of the bond amount.

Potentially yes. If you are a plumber, HVAC tech, or electrician, you need a state bond through DOPL AND a municipal bond for each city where you work. General contractors only need municipal bonds since there is no state general contractor license. Working in multiple cities means multiple municipal bonds.

As of October 2025, the Idaho Contractors Board began transitioning to biennial (2-year) registration. This affects renewal cycles for registered contractors. Check the Board News section on dopl.idaho.gov for details on how your specific renewal cycle will be affected and answers to frequently asked questions.