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About Us

Founded in 1980

Hamilton Tharp, LLP (formerly known as Hamilton Accountancy Corporation) has assembled a team of top tax and accounting professionals to assist clients in reaching their financial and life goals. By applying our service team approach to client needs, we identify a course of action needed for financial, tax and life management success – our clients’ successes are our successes. Whether you are an entrepreneur with start-up issues, a professional athlete with multi-state tax returns to file, or a high net worth individual with wealth management concerns, we can select a team from our qualified staff to develop solutions for financial success and independence. With expertise in financial planning, estate and trust taxation, business entity taxation, multi-state taxation and complex individual taxation issues, our vision is to offer a complete service tailored to each client’s unique needs and goals. Every client receives the personal attention of a seasoned advisor who acts as the quarterback for the financial team and is dedicated to offering highly individualized and creative solutions. For a description of services provided by the team, please refer to the Services section.

In 1981, the company formed the Professional Athlete Services to address the unique tax and financial issues of professional athletes. By providing services that include residence analysis, contract negotiation support and multi-state taxation, this division now represents more than 100 athletes, former athletes and coaches in baseball, football, basketball and volleyball team sports. Additionally, the Professional Athlete Services provides litigation support and consulting services on multi-state and residence issues for professional athletes.


Aprio Firm Alliance

We are proud to be a member of Firm Alliance, a national accounting firm association designed by accounting professionals for progressive CPA firms.

As part of Firm Alliance, we have access to the resources, experience, and professional knowledge base of a national organization while still providing the level of service and attention that only a locally owned, independent accounting firm can offer.

We accepted an invitation to become affiliated with this association because of our commitment to clients and our determination to stay on the cutting edge of developments affecting accounting and consulting firms.

Our membership in Firm Alliance gives us access to professionals serving a diverse range of industries. The combination of our own experience and the resources of Firm Alliance allows us unlimited flexibility in customizing our service to fit your unique business situation. As your business grows, we can tap into additional tools and resources of a national organization to assist you.



Hamilton Tharp recognizes the demand to provide our clients with resources to help them address opportunities in a global economy. To assist our clients with increasing international needs, we have a strategic partnership with audittrust – an independent association of accounting firms in Europe, Latin America, The Middle East, Asia-Pacific, and Africa (EMEA). Should the need arise, we can access the knowledge and resources to provide comprehensive support in 100+ foreign countries worldwide. 

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Community Service

We strive to be leaders in everything we do and believe that giving back to our community is the right thing to do.

Hamilton Tharp encourages and supports involvement in giving back to our communities through our involvement on boards, in charitable organizations, professional associations and civic activities. Furthermore, each year we support several organizations through our financial contributions.

We are proud and humbled that our team members choose to serve so many worthy causes including:

  • Kim Spinardi Named 2023 Rising Aztecs

  • Congratulations to

    The SDSU class of 2020!

  • Active Board Member of

    SDSU Alumni Board

  • Armed Services YMCA Secret Santa Program

  • Proud Supporter of

    san diego state womens basketball team

  • Proud Sponsor Of

    Solana Beach Little League

  • Annual participants in

    Lee National Denim Day

  • Proud sponsor of

    Community Resource Center

  • Proud supporter of

    Susan G. Komen Race for the Cure

Supported Causes

  • Susan G. Komen
  • National Psoriasis Foundation
  • Rancho Coastal Humane Society
  • Rady Children’s Hospital
  • Solana Beach Little League
  • Solana Beach Chamber of Commerce
  • Armed Services YMCA