Welcome!

Thank you for visiting us online!

Abacus Bookkeeping & Tax Service is a full-service tax and accounting firm, dedicated to providing our clients with professional, personalized services and guidance in a wide range of financial and business needs.

Founded in 1947, Abacus serves over 700 clients today with two locations: one in Berkeley, CA and the other in Alamo, CA.  Most of our clients live or work in the San Francisco Bay Area; however, a portion of our practice is dedicated to US citizens living abroad and non-resident aliens who have unique tax situations.

On this website, you will find information about Abacus Bookkeeping & Tax Service, including our list of services. We have also provided you with online resources to assist in the tax process and financial decision-making. These tools include downloadable tax forms and publications, financial calculators, news and links to other useful sites. Whether you are an individual or business in the Bay Area or beyond, Abacus Tax Service's years of valuable experience can help you, too, with a broad range of financial issues.

We welcome any questions or comments you may have. Feel free to contact us at any time:

• Alamo Office

• 3200A Danville Boulevard
• Suite 201
• Alamo, CA 94507



• Berkeley Office

• 1600 Shattuck Avenue
• Suite 205
• Berkeley, CA 94709

You can also get driving directions or send us a message directly through the contact pages of this website: the Alamo Office and the Berkeley Office.