To register, complete a Business License Application with Business Licensing. Go to DOR's web site at bls. dor.wa.Washington, unlike many other states, does not have an income tax. The procedures for compensating yourself for your efforts in carrying on a trade or business will depend on the type of business structure you elect. Withholding Tax Forms for 2017 Filing Season (Tax Year 2016) (Please note the Office of Tax and Revenue is no longer producing and mailing booklets. Washington corporation formation requirements from BizFilings. Our Washington guide provides WA incorporation requirements for your business. The tables below reflect withholding amounts in dollars and cents. Please select the appropriate link from below to open your desired PDF document.