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Office of Management & Finance

Revenue Division

Arts Tax: 503-865-4278

Business Taxes: 503-823-5157

111 SW Columbia St, Suite 600, Portland, OR 97201

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Registration Requirements

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.