About Us


CPA San FransicoTony Carion began his career in 1988 at Ernst & Young servicing pre-IPO clients as well as technology giants such as Apple, Genentech and Monster Cable. The experience gained and business relationships formed during his time at E&Y has been a valuable resource.

Tony obtained his CPA license in 1993 made partner at Smith, Lange & Phillips in 1997. Tony headed the firm's stock option group spending the majority of his time at the firm’s Redwood Shores office during the late 90's tech boom advising employees of the biggest companies in Silicon Valley including IBM, Cisco Systems, Genentech, Pixar, Intel, Microsoft, EA, Yahoo and HP. Tony’s more recent client additions are employees of Google, Apple, Twitter, Facebook, Foursquare, Opentable, Dropbox, Solarwinds, Uber, Airbnb and Tesla.

Tony’s unique ISO strategies not only resulted in immense tax savings for his clients during the tech boom but also preserved millions of dollars of wealth for his clients when the bubble burst in 2000 as a result of risk management strategies. Tony’s ability to analyze a client’s tax situation, equity plan and liquidity enables him to recommend best strategies for his clients based on their particular goals and risk tolerance.

Carion Doty LLP was formed in 2001 and is known for its expertise in the stock option arena, but the firm’s client base goes beyond stock option planning and includes real estate investors and small business owners such as dentists, physicians and consultants operating as sole proprietors, LLCs and corporations.

Tony received his Bachelors in Business Administration from San Francisco State University and obtained his Masters in Taxation from Golden Gate University with an emphasis in Estate Planning. He serves on the San Francisco Archdiocese Deposit and Loan Committee and is Chair of the Finance Council of Good Shepherd Parish.

Tony and Julie have been married since 1992 and have 3 children. Tony earned his black belt in Kajukenbo Karate and enjoys golf, chess, poker, and cruising the Embarcadero and Golden Gate Park on his Boosted Board. 

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Contact Info


Tax Service

Federal Income Tax Planning

We aid businesses with all aspects of federal income tax planning.  This includes implementing federal income tax strategies that maximize savings, increase profits and manage cash flows.

State and Local Tax Planning

Our team understands the structural and transactional underpinnings of state and local regulations in ways that allow us to create solutions that mitigate tax liabilities... Read More

Accounting Service


Carion Doty LLP, only audits privately held companies.  Concentrating on privately held companies means we are free from public company regulations reporting deadlines, disclosure complexities and risk management issues.  As a result, we can focus on what really matter to you and your business... Read More

Consulting Services

Business Valuation

Business valuations enable you to accurately determine the value of a business and its components.  It is essential that you know what a business is worth whether you are buying, selling, involved in litigation or planning your estate.  Our highly trained and experienced professionals work with attorneys, other accountants and financial institutions to ensure you are represented fairly.  Our business valuation team is comprised of Certified Valuation Analysts (CVA), Accredited Senior Appraisers (ASA) and accountants Accredited in Business Valuation (ABV)... Read More




The Aerospace industry develops and manufactures planes, engine and related components for the civil and defense markets. Over the last five years the industry's commercial segment rapidly rebounded with demand lifted by rising global air travel and fleet replacement. Rapid economic growth in emerging markets also increased global air travel and as a result has increased demand for exports of large commercial aircraft... Read More



The automotive industry involves the manufacturing of vehicles and parts for commercial and individual purposes. As the economy rebounded after 2010, consumer sentiment rose and interest rates at historically low levels combined with extra incentives increased demand. Prospects ahead are encouraging for the industry and profit is expected to trend upward over the next five years, as industry operators benefit from rising vehicle sales and the cost-cutting measures enacted during the downturn... Read More



The construction industry has strongly rebounded over recent years. Tight credit markets, lower consumer spending, and high unemployment slowed growth until recently as demand for new commercial and residential space has been low.... Read More


Please use this form to inquire about our services. Feel free to contact us via phone or fax. 415.362.4999