Contractor licensing

Most states regulate construction contractors through a licensing board, and working without a required license can mean fines, no lien rights, and unenforceable contracts. There is no single federal contractor license — licensing is state (and sometimes local) law.

What a contractor license covers

A contractor license generally authorizes a person or company to perform, bid, or contract for certain classes of construction work in that state. Requirements commonly include a trade exam, a business/law exam, proof of experience, a bond, and proof of insurance or workers' compensation.

Why it matters

  • In states that require a license, an unlicensed contractor can be barred from enforcing a contract and can lose mechanic's lien rights.
  • Licensing class and limits vary by state — and sometimes by county or city.
  • Reciprocity (recognizing another state's license) is the exception, not the rule, and is negotiated state-to-state.
Check the source. GC Laws links each state to its licensing authority where that has been verified. For your state and trade, confirm requirements directly with the state board before you rely on them.

Related tools and support

Visit GC Experts for contractor business support. FedTrakker currently leads to the GC Experts site. For project-specific legal advice, find counsel.

Explore the $29 state packs and included templates.