To start a general contractor business, you confirm whether your state requires a contractor license, meet its experience and exam requirements, form an LLC or corporation, secure general liability and workers’ compensation insurance plus a surety bond, apply through the state licensing board, and set up the safety, worker-classification, and contract practices that keep you legal once you’re working. How to start a general contractor business depends heavily on your state: roughly a third of states don’t require a state-level contractor license, while the rest run programs that demand verified field experience, a passing trade exam, bonding, and insurance before you can bid.
Check Whether Your State Licenses Contractors
About 18 states, including Colorado, Kansas, Missouri, New York, Ohio, and Texas, do not require a state-level general contractor license. In most of them, licensing authority sits with cities and counties. A contractor working in Denver still needs a local license even though Colorado has no state requirement. Other states in this group, like New Jersey and Nebraska, skip a full license but require contractors to register with a state agency before performing certain types of work.
The remaining states run licensing programs through a construction licensing board, a department of professional regulation, or a similar agency. These programs set minimum experience thresholds, require trade exams, and mandate financial protections like surety bonds. If your state doesn’t license contractors, focus on your city or county building department’s rules; the business formation, insurance, worker classification, and OSHA sections below still apply.
Meet Experience and Exam Requirements
States that license general contractors almost universally require verified work experience. A common benchmark is four years of journey-level or supervisory experience within the last ten years in the classification you’re applying for. Journey-level means working independently in the trade, not fetching materials. The experience typically must be confirmed by someone with firsthand knowledge of your work, such as a former employer, supervising contractor, or project engineer.
Formal education can shorten that clock. Many boards grant credit for degrees in construction management, engineering, or related fields. An associate’s degree might substitute for a year or slightly more; a four-year degree in construction management or a related engineering discipline could replace up to three years. At least one year of hands-on experience is almost always required regardless of education.
Once you meet the experience requirement, you take a trade exam. The National Association of State Contractors Licensing Agencies offers an Accredited Examination for Commercial General Building Contractors that roughly 17 states accept in place of their own trade exams.1National Association of State Contractors Licensing Agencies. NASCLA Commercial Exam Passing it lets you send your results to any participating state through NASCLA’s National Examination Database, which simplifies multi-state licensing.2National Association of State Contractors Licensing Agencies. Apply for NASCLA Exams States outside the NASCLA program administer their own exams, which generally cover project management, building codes, safety, and business law.
Residential vs. Commercial Classifications
Most licensing states separate residential and commercial classifications. A residential license usually limits you to single-family homes and small multi-unit buildings. A commercial license covers larger-scale construction, industrial facilities, and public infrastructure. Each classification carries its own exam and may have different bonding and insurance thresholds. Some contractors start residential and upgrade to commercial as their experience and project scope grow.
Reciprocity Between States
If you already hold a license in one state and want to work in another, check whether a reciprocity agreement exists. Some states waive part or all of the exam for contractors who hold an active license in good standing from a reciprocal state, though they still require you to meet their bonding, insurance, and experience standards. The NASCLA exam functions as a form of reciprocity for general building contractors in participating states. Outside that network, contact the target state’s licensing board about its specific policies.
Form the Business Entity and Get an EIN
You need a legally organized business before applying for a license. Most contractors form a Limited Liability Company or a corporation to separate personal assets from business liabilities. You register the entity with your state’s secretary of state, which involves filing articles of organization (for an LLC) or articles of incorporation (for a corporation) and paying a filing fee.
Once the entity exists, apply for a Federal Employer Identification Number. The fastest route is the online application at IRS.gov/EIN, which issues the number immediately.3Internal Revenue Service. About Form SS-4, Application for Employer Identification Number (EIN) You can also file a paper Form SS-4 by mail or fax, but the online method takes minutes instead of weeks.4Internal Revenue Service. Instructions for Form SS-4 The EIN serves as the business’s tax ID for hiring, filing returns, and opening bank accounts.
If you plan to hire, register with your state’s unemployment insurance agency. Every state runs its own unemployment tax program and generally requires employers to register as soon as workers come on. The Federal Unemployment Tax Act imposes a 6.0% tax on the first $7,000 of each employee’s wages, with a credit of up to 5.4% if you pay state unemployment taxes on time, dropping the effective federal rate to 0.6%.5Internal Revenue Service. Instructions for Form 940
Line Up Insurance and a Surety Bond
Licensing boards require proof of specific coverage before processing an application. Two policies are non-negotiable.
General liability insurance covers third-party bodily injury and property damage during construction. If a visitor trips over materials on your site or your crew damages a neighboring structure, this policy responds. Minimum coverage amounts vary by state and license classification.
Workers’ compensation insurance is required in virtually every state as soon as you have employees. It pays for medical treatment, rehabilitation, and a portion of lost wages when a worker is injured on the job. Going without it exposes you to personal liability for workplace injuries and, in many states, criminal penalties.
Most licensing states also require a surety bond. Unlike insurance, a bond doesn’t protect you; it protects the public. If you violate licensing laws or breach a contract, a consumer can file a claim against the bond. Bond amounts range widely, from as low as $2,500 in some states to $100,000 or more for higher-value commercial licenses. The amount depends on your classification, project value cap, and sometimes the municipality where you’re working. You buy bonds through surety companies or insurance agencies, and the premium is a percentage of the bond amount based on your credit and financial history.
Your application will also require a qualifying individual, the person whose experience and exam results support the license. In a sole proprietorship, that’s you. In an LLC or corporation, it can be an owner, officer, or responsible managing employee. You’ll also need a registered agent with a physical address in your state of formation to receive legal notices. Some boards additionally ask for proof of financial solvency, such as a recent balance sheet showing minimum net worth or a line of credit.
Submit the License Application
Most licensing boards offer online portals where you upload digital copies of insurance certificates, your bond, exam scores, and experience verification. If no digital option exists, the package goes by certified mail. Either way, expect a non-refundable application fee, typically a few hundred dollars depending on classification.
After you file, the board runs a background check and may require fingerprinting. You’ll need to disclose criminal convictions and any history of bankruptcy, judgments, or liens related to construction. Failing to disclose a conviction is treated as falsifying the application and is grounds for automatic denial. Processing for a complete application generally runs four to twelve weeks while the board verifies experience, checks financial records, and reviews your background.
Once approved, the board issues a license number that must appear on your advertising, contracts, and in many states, your business vehicles. That number is how clients and regulators verify you’re authorized to work.
Set Up OSHA Compliance Before Your First Job
A contractor license authorizes you to do construction work. Federal OSHA regulations under 29 CFR 1926 dictate how you do it safely, and they apply in every state regardless of whether you need a license. Construction consistently ranks among the most dangerous industries, and OSHA enforces aggressively.
Every construction employer must develop and maintain safety programs addressing the hazards present on their sites.6Occupational Safety and Health Administration. Construction eTool – Safety and Health Program At a minimum, that means written programs covering emergency response, fire prevention, hazard communication, and fall protection. Fall protection alone draws more OSHA citations in construction than any other standard.
If your company has more than ten employees at any point in a calendar year, you must maintain OSHA injury and illness records on the OSHA 300 log.7Occupational Safety and Health Administration. 1904.1 – Partial Exemption for Employers With 10 or Fewer Employees Companies with ten or fewer employees are generally exempt from routine recordkeeping but must still report any workplace fatality or serious injury.
OSHA’s 10-hour and 30-hour Outreach Training courses are voluntary at the federal level, but many states and local jurisdictions require them. The 10-hour course targets entry-level workers; the 30-hour version is for supervisors and safety personnel. Even where not required, running your crew through these courses reduces jobsite risk.
Classify Workers Correctly From Day One
This is where new contractors get into expensive trouble. The IRS uses a three-factor test to determine whether someone working for you is an employee or an independent contractor: behavioral control (do you direct how the work is done?), financial control (do you supply tools and reimburse expenses?), and the type of relationship (is there a written contract, benefits, or an expectation of permanence?).8Internal Revenue Service. Independent Contractor (Self-Employed) or Employee? No single factor is decisive; the IRS looks at the overall picture.
Getting this wrong is costly. Treating employees as independent contractors to avoid payroll taxes and workers’ comp premiums exposes you to back taxes, penalties, and potential fraud charges from both the IRS and your state labor agency. In construction, where crews show up to your site, use your tools, and follow your daily instructions, the relationship looks like employment to regulators regardless of what the paperwork says.
Legitimate subcontractors are independently licensed businesses that control their own methods, carry their own insurance, and serve multiple clients. Before hiring one, verify their license status and insurance coverage. In many states, a general contractor who hires an unlicensed sub can lose the right to collect payment for that sub’s portion of the work. Some insurance policies also exclude coverage for damage caused by unlicensed subs, leaving you personally exposed.
Use Written Contracts and Protect Your Payment Rights
Every project should be governed by a written contract. In many states, unlicensed or unwritten work leaves you with no legal recourse if the client refuses to pay. A solid contract includes the scope of work, a payment schedule tied to project milestones, start and completion dates, and the process for handling change orders.
A dispute resolution clause saves time and money. Most construction contracts specify mediation or arbitration before either party can file a lawsuit, which keeps disputes out of court where litigation costs can quickly exceed the amount at stake on smaller projects.
Mechanic’s liens are the strongest payment tool available to contractors. A lien places a legal claim against the property you improved, which prevents the owner from selling or refinancing until it’s resolved. Filing deadlines and procedural requirements vary by state, so learn your state’s rules early. Missing a lien deadline by a day can forfeit your right to file, and most states require you to be properly licensed to use the lien process at all.
Keep the License and the Business Clean
A contractor license isn’t permanent. Most states require renewal on a one-year or two-year cycle, with fees that vary by state and classification. Missing a renewal triggers automatic suspension in most jurisdictions, and working on a suspended license carries the same consequences as working without a license: fines, voided contracts, and potential criminal charges. Some states impose administrative fines starting at $1,000 per violation, with criminal penalties escalating for repeat offenses.
Many licensing states also require continuing education for renewal. Hours vary considerably: some states ask for two or three hours per year, others 14 or more per renewal cycle. Topics typically include code updates, licensing law changes, safety, and business management. Your board’s website lists approved providers and any mandatory courses.
If you formed an LLC or corporation for liability protection, that protection only holds up when you actually treat the business as separate. Open a dedicated business bank account and run every business transaction through it. When personal and business funds mix, courts can pierce the corporate veil and hold you personally responsible for business debts and judgments. Clean separation also makes tax reporting straightforward and gives you accurate data on project profitability, which matters because contractors with poor financial hygiene tend to underbid future projects without knowing their true costs.