Colorado electrical license requirements and insurance
To work for yourself as an electrician in Colorado, you need the Master Electrician license. Colorado has 4 electrical license types, and which one you need depends on the work you take on. The state sets no minimum liability insurance, and workers' comp is required from the first employee. The state does not ask for a bond.
Who it applies to
1Who needs an electrical license in Colorado? What is this?
Electrical Contractor registration: any business that offers electrical work to the public. The person holds the license; the company holds the registration
| License | Who needs it | What it covers |
|---|---|---|
| Residential Wireman | Anyone who wires homes of one to four families and does not hold a journeyman or master license | Wiring in one- to four-family homes only. On a commercial job site you must be registered as an apprentice |
| Journeyman Electrician | Anyone who installs and repairs wiring in any building while working for a registered electrical contractor | Electrical work in homes and in commercial and industrial buildings, for a registered contractor |
| Master Electrician | The person who plans, lays out and supervises electrical work. Every electrical contractor must be one or employ one full time | Planning, laying out and supervising electrical work, and the right to be the master of record for one electrical contractor |
| Electrical Contractor registration | Any business that offers electrical work to the public. The person holds the license; the company holds the registration | Lets the company take electrical jobs, pull permits and employ apprentices. All work is supervised by the company's master electrician |
| Photovoltaic Installer registration | A contractor who fits solar photovoltaic systems with a NABCEP certified employee, and who is not a registered electrical contractor. A 2025 law created this registration | Photovoltaic electrical work on installations under 300 kilowatts of direct current. Only an electrical contractor or a registered photovoltaic installer may offer that work |
| Electrical Apprentice registration | Anyone learning the trade while employed by a registered electrical contractor under a licensed electrician | — |
Who runs it
2Who issues electrician licenses in Colorado? What is this?
Colorado State Electrical Board, inside the Division of Professions and Occupations at the Department of Regulatory Agencies (DORA) issues electrical licenses in Colorado.
See how this compares in every state: How to check a contractor's license, state by state
| Name | Colorado State Electrical Board, inside the Division of Professions and Occupations at the Department of Regulatory Agencies (DORA) |
|---|---|
| Website | dpo.colorado.gov |
| Look up a license | apps2.colorado.gov |
| The law | Colorado Revised Statutes, Title 12, Article 115 (the Electricians Practice Act) |
| The rulebook | State Electrical Board Rules and Regulations, 3 CCR 710-1 |
| City rules | Denver issues its own electrical contractor license at no charge, but only after you show your Colorado electrical contractor card and your master electrician's ID. Other cities have their own steps, so ask before you quote. |
Taken from the linked page, not separately checked
·7 official pages
- dpo.colorado.gov/Electrical
- apps2.colorado.gov/dora/licensing/Lookup/LicenseLookup.aspx
- colorado.public.law/statutes/crs_title_12_article_115
- sos.state.co.us/CCR/GenerateRulePdf.do?ruleVersionId=10967&fileName=3%20CCR%20720-1
- law.cornell.edu/regulations/colorado/department-700/division-710/3-CCR-710-1
- denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Contractor-Licensing/CL-Resources-and-Downloads/Fees-for-Contractor-Licenses-and-Supervisor-Certificates
- denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Contractor-Licensing/Contractor-Licenses/Apply-for-a-Contractor-License
Getting licensed
3How to become an electrician in Colorado What is this?
Colorado has 6 licenses that matter to an electrician: Residential Wireman, Journeyman Electrician, Master Electrician, Electrical Contractor registration, Photovoltaic Installer registration, Electrical Apprentice registration. Each is below, with what you need before you apply.
| License | Experience required | Training required | Exam |
|---|---|---|---|
| Residential Wireman | Two years of accredited training, or two years of practical experience wiring one- to four-family homes. For the exam the board counts that practical route as 4,000 hours, earned over no less than two years. An approved engineering or trade degree earns one year of credit | — | Yes, a board exam. Results come back as pass or fail only, and you cannot review your paper |
| Journeyman Electrician | 8,000 hours over at least four years as an apprentice or in practical electrical work. At least two of those years must be commercial or industrial work. The board may give credit for schooling, military training or training in fitting solar systems, but since a 2025 law it no longer has to | 288 hours of classroom training from the last eight years of your training, apprenticeship or practical experience, covering grounding, code changes, wiring methods, theory, and ten to forty hours of OSHA safety. The window was four years until a 2025 law widened it, and the board's own rule book still prints the old four years. The board does not approve courses in advance. Keep the papers for this training for three years, and your renewal training records for seven | Yes, a board exam. Results come back as pass or fail only |
| Master Electrician | There are three routes in the law, and you need one of them. A year of practical work planning, laying out, supervising and installing wiring beyond what the journeyman license asks. An electrical engineering degree plus one year of practical work in construction. Or a trade school or community college qualification plus four years of practical work. For the exam the board counts experience as 10,000 hours, earned over no less than five years | — | Yes, a board exam. Results come back as pass or fail only |
| Electrical Contractor registration | — | — | No. The master electrician has already passed it |
| Photovoltaic Installer registration | — | — | None stated in the law |
| Electrical Apprentice registration | — | — | — |
What it costs
4How much does an electrical license cost in Colorado? What is this?
The government fees on this page, added up.
| License | Application | First registration | Processing fee |
|---|---|---|---|
| Residential Wireman | null | — | — |
| Journeyman Electrician | null | — | — |
| Electrical Contractor registration | — | — | null |
| Electrical Apprentice registration | — | $30 | — |
Added up
| Government fees, added up | Not listed yet |
|---|
We print no total, because Colorado publishes none of its license fees. The law lets the board charge for the license, the exam and the registration, but no page, law or rule gives an amount. A 2025 fiscal note puts electrical fees somewhere between $109 and $229 each, as an estimate only. Insurance, tools, a vehicle and city permits come on top.
Our estimate
Insurance
5How much electrical contractor insurance do you need in Colorado? What is this?
Colorado sets no minimum liability insurance for this license. Customers and general contractors usually ask for $1,000,000 anyway. Workers' comp is required from the first employee.
| Minimum liability insurance | None required by the state |
|---|---|
| Type of policy | None required by the state. Neither the electricians law nor the board rules mention liability insurance |
| Who this applies to | Not applicable at state level. Cities may ask for a certificate before they issue permits, and most customers and builders will ask for one |
| Who must be named on the certificate | Not applicable |
| Workers' comp required? | Yes |
| Workers' comp: what to know | Every employer with one or more employees must carry it, through Pinnacol Assurance, a private insurer, or a self-insurance permit. The electrical board will not register your company until you show you comply. |
| Who can opt out | A corporate officer or an LLC member who owns at least 10 percent of the business and runs it can reject cover in writing, sent by certified mail. In construction, a contractor with no employees must still be covered, unless they file a rejection of coverage with the state |
| Workers' comp: if you skip it | Up to $250 a day for a first failure to carry cover, and $250 to $500 a day for any later one. The electrical board can also fine you $375 to $750 for breaking another state law such as the insurance law |
Checked by a person against the official page
·8 official pages
- sos.state.co.us/CCR/GenerateRulePdf.do?ruleVersionId=10967&fileName=3%20CCR%20720-1
- colorado.public.law/statutes/crs_12-115-110
- colorado.public.law/statutes/crs_8-40-203
- colorado.public.law/statutes/crs_8-44-101
- colorado.public.law/statutes/crs_8-41-202
- colorado.public.law/statutes/crs_8-43-409
- cdle.colorado.gov/dwc/employers/insurance-coverage
- cdle.colorado.gov/dwc/employers/independent-contractors-and-coverage-exemptions
Money checks
6Does Colorado check your credit for an electrician license? What is this?
Colorado does not check your credit for this license.
| Credit score you need | None. Colorado does not check your credit, net worth or bank balance for an electrical license or a contractor registration |
|---|---|
| If your score is lower | Not needed |
| How we know |
|
Checked by a person against the official page
Bonds
7Does an electrician need a bond in Colorado? What is this?
Colorado does not require a state bond for this license. Some cities ask for one before they issue permits.
| Does the state require a bond? | No |
|---|---|
| Amount | None required by the state |
The state does not ask for a bond (a promise, backed by an insurance company, that customers can be paid if you do not finish the job). Neither the electricians law nor the board rules mention one. Cities may ask for their own bond before they let you pull permits, so check with your city.
Checked by a person against the official page
Showing your number
8Where must a Colorado electrician show the license number? What is this?
In Colorado: no state rule makes an electrical contractor print the license or registration number on ads, bids, invoices or trucks. Two rules do apply. A registered contractor may advertise only under the company name on file with the state, not under any other trade name. And every electrician must carry the license card, permit or registration on them while working.
| The rule |
|
|---|---|
| On ads | Only a licensed person may use the words master electrician, journeyman electrician or residential wireman in any ad. False or misleading advertising by a licensee or registrant is fined |
| If you forget | $375 for a first false or misleading ad, $750 for a second, and up to $2,000 a day after that |
Checked by a person against the official page
Tax
9Does an electrician charge sales tax on labor in Colorado? What is this?
In Colorado, colorado does not tax your labor on its own. The tax falls on the materials, and how it is paid depends on how you bill. The rest of the rules are below.
See how this compares in every state: Can you charge sales tax on labor? The rule in 25 states
| Labor | Colorado does not tax your labor on its own. The tax falls on the materials, and how it is paid depends on how you bill |
|---|---|
| Materials | You are treated as the final buyer of wire, conduit, panels and fixtures that become part of a building. You pay sales tax when you buy them |
| When you quote one total price | You pay tax at the supply house on what the materials cost you, and you do not charge the customer any tax |
| When you bill time and materials | You become a retailer for that job. You need a sales tax license, and you charge the customer tax on the marked-up price of the materials |
| When you are the subcontractor | A subcontractor is the user of the materials it buys and pays the tax on them |
| Homes versus businesses | No difference. The rule looks at how you bill, not at the kind of building |
| New buildings versus repairs | No difference. The same materials rule applies to a new building and to a repair |
| Tax-exempt customers | Materials that go into a building owned by a government body, a charity or a public school can be bought tax-free with an exemption certificate from the Department of Revenue |
| Do you register to collect tax? | Only if you bill time and materials or sell parts over the counter. The state does not issue a sales tax license to a contractor who only quotes fixed prices |
| Tax rate | 2.9 percent state, plus city, county and special district rates that vary by address |
Checked by a person against the official page
Getting paid
10Getting paid: lien and notice deadlines for a Colorado electrician What is this?
If you are not paid in Colorado, a lien on the property is your backstop, but only if your notice goes out on time: serve a notice of intent on the owner and on the main contractor at least ten days before you file the lien. To file on October 1 you serve it by September 21 at the latest. Proof of service is filed with the lien.
| Who has to send a notice | Everyone who wants to file a lien. There is no notice at the start of a job in Colorado, but a notice of intent must go out before any lien is filed |
|---|---|
| Send your notice by |
|
| File your lien by | Within four months after your last day of work or your last delivery (last day of work June 1 means you file by October 1). A worker claiming wages only has two months after the building is finished |
| File a lawsuit by | Within six months after your last day of work or the completion of the building (last day of work June 1 means you sue by December 1), with a notice of the lawsuit filed with the county clerk in the same window |
| What the owner can argue back | On a single-family home the owner lives in, or one the owner is building to live in, the owner can beat a subcontractor's lien by showing the main contractor was paid in full |
| Who can file a lien | Contractors, subcontractors, workers, suppliers, and the architects and engineers who drew the plans |
Checked by software against the official page
Keeping it
11How do you renew an electrical license in Colorado? What is this?
The Electrical Contractor registration renews every three years, with a sixty-day grace period and a late fee inside it.
| License | Renewal | Training hours each renewal |
|---|---|---|
| Residential Wireman | Every three years, timed to the board's adoption of the National Electrical Code, with a sixty-day grace period and a late fee inside it. The current licenses all end on 30 September 2026 and can be renewed up to 30 November 2026 | — |
| Journeyman Electrician | Every three years, timed to the board's adoption of the National Electrical Code, with a sixty-day grace period and a late fee inside it. The current licenses all end on 30 September 2026 and can be renewed up to 30 November 2026 | — |
| Master Electrician | Every three years, timed to the board's adoption of the National Electrical Code, with a sixty-day grace period and a late fee inside it. The current licenses all end on 30 September 2026 and can be renewed up to 30 November 2026 | — |
| Electrical Contractor registration | Every three years, with a sixty-day grace period and a late fee inside it | — |
Renewal fees are in what the license costs. The official page for each license is linked under how you get it.
Watch out
12What catches people out in Colorado What is this?
The things people get wrong or do not expect about Colorado, in a few sentences.
- Experience is counted in hours and in years at the same time. A journeyman needs 8,000 hours spread over at least four years, and a master needs 10,000 hours over at least five.
- Two of a journeyman's four years must be commercial or industrial work, and you must show 288 hours of classroom training. A 2025 law widened the window for those hours from the last four years to the last eight, so training you had written off may still count.
- Solar work has its own registration since 2025. A contractor fitting photovoltaic systems who is not a registered electrical contractor must register as a photovoltaic installer by 31 December 2026.
- Colorado will not hand out a master electrician license by reciprocity. A journeyman license can come from another state, and a master from another state goes through the board's endorsement route instead.
- Licenses and registrations run three years so they line up with the board's adoption of the National Electrical Code. Twenty-four hours of training per cycle, at least four of them on code changes.
- A registered contractor may advertise only under the company name on file with the state. No rule puts your license number on ads or trucks, which is the opposite of the plumbing rule.
- Denver charges nothing for its electrical contractor license, but it will not issue one until you show the state contractor card and your master's ID.
Checked by a person against the official page
·3 official pages
- sos.state.co.us/CCR/GenerateRulePdf.do?ruleVersionId=10967&fileName=3%20CCR%20720-1
- colorado.public.law/statutes/crs_12-115-110
- denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Contractor-Licensing/CL-Resources-and-Downloads/Fees-for-Contractor-Licenses-and-Supervisor-Certificates
13Where these numbers come from
The labels under each table are explained on how to read a page.
- dpo.colorado.gov/Electrical
- apps2.colorado.gov/dora/licensing/Lookup/LicenseLookup.aspx
- colorado.public.law/statutes/crs_title_12_article_115
- sos.state.co.us/CCR/GenerateRulePdf.do?ruleVersionId=10967&fileName=3%20CCR%20720-1
- law.cornell.edu/regulations/colorado/department-700/division-710/3-CCR-710-1
- denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Contractor-Licensing/CL-Resources-and-Downloads/Fees-for-Contractor-Licenses-and-Supervisor-Certificates
- denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Contractor-Licensing/Contractor-Licenses/Apply-for-a-Contractor-License
- leg.colorado.gov/bills/hb25-1096
- leg.colorado.gov/bills/sb25-165
- colorado.public.law/statutes/crs_12-115-110
- colorado.public.law/statutes/crs_12-115-103
- dpo.colorado.gov/Electrical/ApprenticeInfo
- colorado.public.law/statutes/crs_8-40-203
- colorado.public.law/statutes/crs_8-44-101
- colorado.public.law/statutes/crs_8-41-202
- colorado.public.law/statutes/crs_8-43-409
- cdle.colorado.gov/dwc/employers/insurance-coverage
- cdle.colorado.gov/dwc/employers/independent-contractors-and-coverage-exemptions
- colorado.public.law/statutes/crs_12-115-112
- law.cornell.edu/regulations/colorado/title-1/agency-201/division-5
- colorado.public.law/statutes/crs_39-26-708
- colorado.public.law/statutes/crs_39-26-106
- tax.colorado.gov/sites/tax/files/documents/FYI_Sales6.pdf
- colorado.public.law/statutes/crs_38-22-109
- colorado.public.law/statutes/crs_38-22-110
- colorado.public.law/statutes/crs_38-22-102
- colorado.public.law/statutes/crs_38-22-101