Contractor License Requirementsby State

The most important questions about contractor licensing answered in plain language.

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Which states have no statewide contractor license requirement?

Seventeen states have no statewide GC license or registration: Colorado, Delaware, Idaho (private work), Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Missouri, Nebraska, New Hampshire, New York, Ohio, Oklahoma, South Dakota, and Wyoming. In these states, licensing is handled at the city or county level. Texas is a notable example. The nation's largest construction market has no statewide GC license, but cities like Houston, Austin, and San Antonio each have their own requirements. Note that "no statewide license" doesn't mean no compliance. Most of these states still require specialty trade licenses (electricians, plumbers) and WC insurance for employees regardless of GC license status.

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What is NASCLA and which states accept it?

NASCLA (National Association of State Contractors Licensing Agencies) administers a standardized contractor exam accepted by 16 states as a substitute for their state-specific trade exam. Accepting states include Alabama, Arkansas, California, Georgia, Louisiana, Mississippi, North Carolina, New Mexico, South Carolina, Tennessee, Utah, Virginia, and West Virginia, among others. One NASCLA score can satisfy the trade exam requirement in all accepting states, significantly reducing the exam burden for multi-state contractors. Most states still require their own Business and Law exam even if they accept NASCLA for the trade portion.

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Do I need a separate license for every state I work in?

Generally yes, contractor licenses are state-specific and do not automatically transfer. The exceptions are reciprocity agreements, which allow contractors licensed in one state to obtain a license in a partner state without re-taking the trade exam. The southeastern states (AL, GA, LA, MS, NC, SC, TN) have particularly robust reciprocity networks. Check each state's individual guide for current reciprocity details.

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What is the difference between a residential and commercial contractor license?

Several states issue separate licenses for residential versus commercial work with different thresholds, exam requirements, and financial qualifications. In Maryland, only residential home improvement requires a license; commercial GC work has no state requirement. Mississippi uses two entirely separate boards: MSBOC for commercial and MRBC for residential. South Carolina uses CLB for commercial and RBC for residential. In states with a single license, the same credential covers both work types (California, Florida, Nevada).

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What insurance do contractors typically need to get licensed?

General liability insurance is required by most states that require a contractor license, typically ranging from $100,000 per occurrence to $500,000 or $1,000,000 depending on the state. Workers' compensation is required separately for contractors with employees in virtually every state. Even when insurance is not required by the licensing board, most commercial projects and general contractors require a certificate of insurance before work begins.

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What states require a surety bond for contractor licensing?

Most states with a statewide contractor license require a surety bond as a condition of licensing. Bond amounts vary widely: Washington State requires $30,000 for general contractors, West Virginia requires $10,000–$50,000 depending on classification. Some states like Maryland use a Guaranty Fund instead of a surety bond. Bond cost typically runs 1–3% of the bond amount annually depending on the contractor's credit profile.

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Which states have the highest licensing thresholds?

Alabama has the highest confirmed statewide threshold at $100,000. Many competitors incorrectly show $50,000, but the primary source confirms $100,000. Louisiana, Arkansas, and Mississippi all use $50,000 for commercial work. Tennessee uses $25,000. At the other extreme, North Dakota triggers licensing at $4,000, Virginia and California at $1,000, and Maryland at $500 for residential work.