Do you need a contractor license in Washington?

When do you need a license?

Every contractor must register with L&I. Working, bidding or advertising without registration is a gross misdemeanor. (source: RCW 18.27.020 (opens in a new tab))

• Washington "registers" contractors. Electricians and plumbers are separately licensed or certified, also by L&I. (source: L&I: Register as a contractor (opens in a new tab), source: L&I: Electrician licensing (opens in a new tab))

Penalties for unregistered work

• Infractions include working, bidding or advertising unregistered, and hiring an unregistered subcontractor. Each day and each worksite counts separately. (source: RCW 18.27.200 (opens in a new tab))
• Fines are $200 to $10,000. For failure to register it is $1,200 to $10,000, which can drop to $600 for a first offense if you register within 10 days. (source: RCW 18.27.340 (opens in a new tab))