Trades by State
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North Carolina contractor license requirements

What you need before your first paid job in North Carolina, one page for each trade. The license, the least insurance you must carry, whether the state asks for a bond, when you charge sales tax, and the deadlines that protect your right to be paid.

Checked by the Trades by State editor on 2026-09-16 Every figure on these pages links to the official page it came from Something wrong? Tell us

Plumbing in North Carolina

License you need
Plumbing Contractor, Class I Renew Annual. Every license expires December 31. Renew in January or pay $25 extra. After three years unrenewed you must retest
Insurance you must carry
No state minimum customers usually ask for $1,000,000
Workers' comp
Required as soon as you hire anyone
  • North Carolina does not ask a plumbing contractor for liability insurance or a bond to get or keep the license. Nothing in G.S. 87 Article 2 or the Board's rules sets an insurance minimum. Websites that list one are quoting another state or a city permit rule.
  • There is no continuing education. The Board dropped the requirement on December 31, 2012, and the CE rule (21 NCAC 50 .1401) is repealed.

HVAC in North Carolina

License you need
Heating Group No. 3 Contractor, Class I Renew Annual. Every license expires December 31. Renew in January or pay $25 extra. After three years unrenewed you must retest
Insurance you must carry
No state minimum customers usually ask for $1,000,000
Workers' comp
Required as soon as you hire anyone
  • North Carolina splits HVAC into three licenses by system type, not by size of business. Heating Group 3 covers 15 tons or less and every single-family home. Anything over 15 tons is Group 2, and Group 2 has no Class II residential option. Boilers and steam or hot water heat are Group 1. Window units need no license at all.
  • Replacing a whole central air conditioner, heating unit, or duct system is a capital improvement. You charge the customer no sales tax and pay tax yourself on the equipment. Replacing a coil, blower, condenser coil, control, or a section of duct is a taxable repair, and you charge tax on the whole bill, labor included.

Electrical in North Carolina

License you need
Limited (L) electrical contracting license Renew Every year. The license expires one year after the day it was issued, and the board sends a renewal notice about 60 days before
Insurance you must carry
No state minimum customers usually ask for $1,000,000
Workers' comp
Required as soon as you hire anyone
  • Electrical has its own board. Plumbing, heating and fire sprinkler share one board; electrical contractors answer to a different one, with different rules and a different renewal date.
  • Your license class is set by the size of a single job, not by your skill. Limited stops at $60,000, Intermediate at $150,000, Unlimited has no ceiling.

Across states

Sales tax on labor for plumbers and HVAC contractors by state. Which states tax the work itself, which tax only the parts, and how a repair differs from a new install.