Arts Tax: 503-865-4278
Business Taxes: 503-823-5157
111 SW Columbia St, Suite 600, Portland, OR 97201
New businesses are required to register with the City of Portland and Multnomah County (PDF form or online). Existing businesses changing their tax entity, and sole proprietors/single-member LLCs reopening their business should re-register and provide their business tax account number.