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Office of Management & Finance

Revenue Bureau

Phone: 503-823-5157

Arts Tax: 503-865-4278

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

More Contact Info

Frequently Asked Questions

This information is designed to answer some of your questions about doing business in Portland and Multnomah County, and accessing your business account information online. Regulations vary for each business, so not all requirements are listed. Still have questions? Contact the Revenue Bureau for information and forms. Call us at (503) 823-5157 or visit our website.


About the Taxes

Learn about Portland and Multnomah County Business Taxes

Account Services

Online registration, setting up a PortlandOnline account, finding your business tax account #, file or pay online, managing your account online, certificates of compliance and forms issues

English Tax Info Sheet

Easy to print FAQ & contact info sheet for the City of Portland Business LIcense Tax and Multnomah County Business Income Tax

Pagina en Espanol de Informacion de Impuesto

Pagina facil de imprimir sobre las preguntas frecuentes del impuesto de negocio de la Ciudad de Portland y el Condado de Multnomah

Change in Business Structure

For existing businesses changing their tax entity

New Businesses & Registration

For new entrepreneurs or people thinking of opening a business

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.

PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.