Do You Need a Contractor License? How to Tell, State by State

“Do I need a license for this?” is really four separate questions stacked on top of each other: what does my state require, does the job’s size matter, does my specific trade have its own rule, and does my city add anything on top. Skipping straight to a state’s licensing board page without asking all four is how contractors miss a local permit requirement or a specialty-trade license even after correctly confirming the state itself needs nothing.

Step 1: Identify your state’s regime

Every state falls into one of five buckets, and the bucket determines what “do I need a license” even means there:

• State general contractor license (22 states + DC): a state board issues a competency-based license, usually with an experience requirement and a trade or business exam. If you build or remodel structures here without one, you are operating outside the law.
• State registration (13 states): the state requires you to register or certify as a contractor, typically tied to insurance or a bond, without a standalone competency exam.
• Specialty trades only (4 states): no general contractor license exists, but electrical, plumbing, or HVAC work is licensed on its own.
• Local-only (7 states): the state has no contractor licensing scheme; individual cities and counties run their own.
• No license at all (5 states): neither the state nor, typically, local governments run a contractor-specific licensing scheme, though general business registration still applies.

See the 50-state comparison to look up your specific state, and states with no contractor license for the detail on the last three buckets.

Step 2: Check whether a dollar threshold changes the answer

Many state-GC and state-registration states carve out an exemption for small jobs under a set dollar value, often called a minor-work or handyman exemption. California, for example, exempts work under a set threshold from its contractor licensing requirement (see the handyman vs contractor license guide for how California specifically draws that line). Thresholds and rules differ by state, and some states have no threshold at all, so confirm the number for your specific state rather than assuming one figure applies everywhere.

Step 3: Confirm your specific trade separately

Even in states with no general contractor license, electrical, plumbing, and often HVAC work is licensed as its own trade, almost everywhere in the country. This is the single most common blind spot: a contractor correctly confirms their state has no general contracting license, then unknowingly performs licensed electrical or plumbing work without the separate trade credential that state still requires. Check the specific trade board, not just the general contracting answer.

Step 4: Check what your city or county adds

Local rules layer on top of, or sometimes instead of, the state answer. In local-only states this is the entire answer: there is no state list to check, only your specific municipality. But even in state-GC states, cities commonly add their own registration, a local business license, or additional permitting for specific project types (roofing, pools, demolition) regardless of what the state already requires. Never treat “the state says I’m fine” as the final word without a quick check of the city or county building department for the job’s actual location.

Putting it together

Run all four steps for any state or city that is new to you, in order: state regime, dollar threshold, trade-specific license, and local rules. Skipping a step is how a licensed-in-your-home-state contractor ends up doing unlicensed work three states away, not because the rules are secretive, but because the four questions live in four different places.

Sources: this site’s national comparison matrix (state-matrix.json, generated 2026-07-24); CSLB minor-work exemption (cslb.ca.gov, reviewed 2026-07-19). See /compare/ for per-state sourcing and verification status.