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Amy Ott, CPA

Amy Ott, CPA

Amy Ott is a Bates Consulting Expert and Certified Public Accountant located in Central Oregon. She has 20 years' experience as an independent Tax Consultant. Her focus has been tax controversy (tax examinations and litigation support) for income tax and property tax at the federal and state levels. Ms. Ott also has extensive experience with Research and Development and Orphan Drug Tax credits, including computations for tax provisions and returns, and audit defense.

Ms. Ott started her career in Portland, Oregon in the tax department of Arthur Andersen. She later moved to the Silicon Valley to embark on a consulting career. While in California, some of her major projects included work at Oracle Corporation, Sun Microsystems, Genentech, and Ultragenyx. In addition, she worked on major government contract re-negotiation projects and cost/workforce reduction projects.

Amy is a consultant and subject matter expert in these Practice Areas and Services:



Bates Group LLC, Consulting Expert, 2019 - Present
Independent Tax Consultant (Controversy/R&D Tax credits), 1999 – 2019
Ultragenyx Pharmaceutical, Inc., Consultant, Novato, CA, 2015 – 2019
R&D Tax Credits (for return and provision) and Property Tax
VPTax, Inc., Consultant, Tax Examination Management and Support, R&D Tax Credits and Property Tax,
Burlingame, CA, 2006 – 2019
Genentech, Consultant, Tax Examination Support and Management, Litigation Support, 2002 – 2006
Sun Microsystems, Consultant, Tax Examination Support and Management, 2003 – 2005
Oracle, Consultant, Tax Examinations, 2001 – 2002
Emery Airfreight, Consultant, Government Contract Negotiations, Economic Analysis, 1999 – 2001
Consolidated Freightways, Tax Examinations and Litigation Support, Benchmarking/Re-Engineering, and Internal Audit, 1993 – 1998
Arthur Andersen, Tax, 1990 – 1993


Bachelor of Arts (BA), Accounting, Tax and Finance, Portland State University, Portland, OR


CPA (Certified Public Accountant)