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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

More Contact Info

Tax Entity Changes

Existing businesses changing their tax entity (for example incorporating your sole proprietor business) need to re-register and provide their current business tax account number. You will generally be issued a new tax account number for your new tax entity.