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Office of Management & Finance

Revenue Bureau

Revenue is being re-organized under the Bureau of Revenue and Financial Services.

Phone: 503-823-5157

Arts Tax: 503-865-4278

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

More Contact Info

Penalty & Interest Calculator

The Revenue Bureau has added a 2011 Penalty & Interest Calculator for tax software developers. Information is available on our Technical Specifications page.

Disclaimer: This is a tool to assist developers in creating and testing penalty and interest calculations. It is a simplified version of the same calculator that is used to calculate penalties and interest as the original Combined Tax Returns are processed. The Revenue Bureau cannot fully guarantee the accuracy of calculations.