Washington state has specific requirements for individuals and businesses seeking to become contractors. The state's Department of Labor & Industries (L&I) oversees contractor registration and licensing. Here are some key points to consider if you want to become a contractor in Washington:

1. Business Structure: You need to establish a legal business entity in Washington if you don't already have one. This can be a sole proprietorship, partnership, limited liability company (LLC), or corporation.
2. UBI Number: You'll need a Unified Business Identifier (UBI) number, which is issued by the Washington State Department of Revenue. This number is used for tax purposes and to identify your business in the state.
3. License and Registration: Depending on the type of contracting work you plan to do, you may need a contractor's license or registration. Washington distinguishes between general contractors and specialty contractors.

• General Contractors: These contractors typically perform work that involves multiple trades and may require a general contractor's license. This license is issued by the Washington State Department of Labor & Industries. To obtain this license, you'll need to meet specific education, experience, and testing requirements.
• Specialty Contractors: If you plan to work in a specialized trade, such as electrical, plumbing, or HVAC, you may need a specialty contractor's license. Requirements for specialty licenses can vary, but they typically involve experience in the field and passing an exam.

1. Insurance: Contractors in Washington are generally required to carry liability insurance. The specific insurance requirements can vary depending on the type of work you do and your license type.
2. Surety Bond: Depending on your license type and the scope of your work, you may be required to post a surety bond. The bond serves as a financial guarantee to protect customers from any issues with your work.
3. Register with L&I: You'll need to register your business with the Washington State Department of Labor & Industries. This registration is separate from obtaining a contractor's license and is needed to legally operate as a contractor in the state.
4. Continuing Education: General contractors may be required to complete continuing education courses to maintain their license. These courses help contractors stay current with industry standards and regulations.
5. Taxes: You'll need to be aware of and comply with Washington state tax requirements, including sales tax, business and occupation (B&O) tax, and possibly other local taxes.



It's important to note that the requirements for becoming a contractor in Washington can be complex and vary depending on your specific trade and scope of work. It's advisable to visit the Washington State Department of Labor & Industries website or contact them directly for the most up-to-date and detailed information on licensing and registration. Additionally, seeking legal and financial advice from professionals with expertise in the construction industry can be helpful in navigating the regulatory landscape.