About Hahn CPAs

A Family Legacy of Trusted Accounting in the Treasure Valley

Since 1980, Hahn CPAs has built lasting relationships with individuals and businesses across Eagle and Boise. Today, we continue that tradition with personalized service, expanded expertise, and deep community roots.

A Legacy of Service Since 1980

Generations of Experience, Built Locally


Hahn CPAs was founded in 1980 by Dean Hahn’s father, who established the practice on the principles of integrity, professionalism, and a commitment to helping neighbors in the Treasure Valley. In 2009, Dean assumed leadership, carrying forward the family tradition while modernizing the practice with new technology and services.

In recent years, the firm merged with Kathleen Roma & Associates, a well-respected local accounting firm. This merger expanded the client base to over 2,500 individuals and businesses, strengthened the team’s collective knowledge, and reinforced the firm’s reputation as one of the Treasure Valley’s most trusted CPA firms. Through every transition, the personal touch and client-first approach have remained unchanged.

Our Team of Dedicated Professionals

Experienced, Credentialed & Personable

integrity, clarity, and care for each client

We believe that accounting is not just about compliance—it’s about providing insight and peace of mind. Our dedication to ongoing education ensures we bring the latest strategies to every client relationship.

Serving the Treasure Valley Community

Proud to be a Treasure Valley CPA firm

Lake with mountains in the background, blue water, and a person in a kayak. Sunny day with green trees.
  • Individuals & Families

    For over 40 years, Eagle and Boise residents have trusted us for accurate, stress-free tax preparation and year-round planning. We tailor our approach to each client, whether you’re managing retirement income, selling a home, or planning for the future.

  • Small Businesses & Entrepreneurs

    Local businesses across Meridian, Star, and Middleton rely on us for bookkeeping, payroll, and tax strategy. We partner closely with owners to streamline operations and provide financial insights that drive growth.

  • Community Organizations & Non-Profits

    As active members of the Treasure Valley, we understand the needs of local organizations. From non-profit accounting to advisory support, we help community-focused groups remain financially strong and mission-driven.

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Schedule Your Consultation Today

We’re here to answer your questions and provide expert tax and accounting guidance.