Washington Revised Code Title 51. Industrial Insurance § 51.08.195. “Employer” and “worker”--Additional exception

(1) The individual has been and will continue to be free from control or direction over the performance of the service, both under the contract of service and in fact; and

(2) The service is either outside the usual course of business for which the service is performed, or the service is performed outside all of the places of business of the enterprise for which the service is performed, or the individual is responsible, both under the contract and in fact, for the costs of the principal place of business from which the service is performed; and

(3) The individual is customarily engaged in an independently established trade, occupation, profession, or business, of the same nature as that involved in the contract of service, or the individual has a principal place of business for the business the individual is conducting that is eligible for a business deduction for federal income tax purposes; and

(4) On the effective date of the contract of service, the individual is responsible for filing at the next applicable filing period, both under the contract of service and in fact, a schedule of expenses with the internal revenue service for the type of business the individual is conducting; and

(5) On the effective date of the contract of service, or within a reasonable period after the effective date of the contract, the individual has established an account with the department of revenue, and other state agencies as required by the particular case, for the business the individual is conducting for the payment of all state taxes normally paid by employers and businesses and has registered for and received a unified business identifier number from the state of Washington; and

(6) On the effective date of the contract of service, the individual is maintaining a separate set of books or records that reflect all items of income and expenses of the business which the individual is conducting.