Idaho Contractor & Trade License Requirements
Idaho uses a split system: specialty trades (electrical, plumbing, HVAC) are licensed statewide through the Division of Occupational and Professional Licenses (DOPL), while general contractors and roofing contractors only need to register with the Idaho Contractors Board (no exam required). Registration applies to any construction work exceeding $2,000 in materials and labor. As of 2025-2026, Idaho is transitioning from annual to biennial registration cycles.
General Contractor
Not requiredElectrician
RequiredPlumber
RequiredHVAC Technician
RequiredRoofing Contractor
Not requiredIdaho Licensing Overview
Idaho requires statewide licensing for 3 of 5 contractor trades. The licensed trades — electrician, plumber, hvac technician — are regulated by 3 separate agencies: Division of Occupational and Professional Licenses — Electrical Board (DOPL), Division of Occupational and Professional Licenses — Plumbing Board (DOPL), Division of Occupational and Professional Licenses — HVAC Board (DOPL). General Contractor and Roofing Contractor licensing is handled at the city and county level rather than statewide. Across all licensed trades, initial costs range from $135 to $257, including application fees, exams, and license issuance.
Idaho Contractor License Cost Summary
| Trade | Application | Exam | License | Bond | Est. Total |
|---|---|---|---|---|---|
| General Contractor | Local — no statewide fees | ||||
| Electrician | $15 | $75 | $55 | — | $145 |
| Plumber | $35 | $75 | $147 | $2,000 | $257 |
| HVAC Technician | $35 | $100 | — | $2,000 | $135 |
| Roofing Contractor | Local — no statewide fees | ||||
Estimated totals include application, exam, license, and fingerprinting fees. Bond amounts are separate and typically paid as an annual premium.
Key Facts About Idaho Contractor Licensing
- Minimum $300,000 single-limit general liability insurance required. Policy must include products and completed operations coverage. Workers comp required for all employers; sole proprietors may file an exemption.
- Idaho does not require a statewide license for general contractor or roofing contractors. Local permits may still apply.
- 2026 change: Transitioning to biennial registration — even-year births move to 2-year cycle in 2026, with fee doubling to cover both years
- 2024 change: NASCLA exams now required — applicants must pass the NASCLA exam before applying for licensure
- 2025 change: Continuing education is no longer required for electrical license renewal
Frequently Asked Questions
Does Idaho require a contractor license?
Yes, Idaho requires statewide licensing for 3 of 5 trades: electrician, plumber, hvac technician. General Contractor and Roofing Contractor do not require a statewide license.
How much does a contractor license cost in Idaho?
Initial licensing costs range from $135 to $257 depending on the trade, including application, exam, and license fees.
Does Idaho have license reciprocity with other states?
Idaho does not currently have reciprocity agreements with other states. Contractors from other states must apply and meet the full requirements.
What trades require a state license in Idaho?
Idaho requires statewide licenses for: electrician, plumber, hvac technician. General Contractor and Roofing Contractor licensing is handled at the local level.
Do I need workers compensation insurance in Idaho?
Minimum $300,000 single-limit general liability insurance required. Policy must include products and completed operations coverage. Workers comp required for all employers; sole proprietors may file an exemption.