Keystone CPA
“I have used their business advisory service and tax services for 3 businesses and for my personal taxes as well.”
Best CPAs in Fullerton, CA
15 firms listed · 7 in Fullerton · 1 open weekends · 14 rated 4.5+
Data verified October 16, 2026
Ferguson, Timar & Company
“Jim really knows the tax codes like the back of his palm, and provides you with the best possible solutions for your business.”
Arrietacpa
“I'm no longer afraid to do my personal and business taxes because Favio makes things easy!”
Duran Michael w CPA
Husami & Associates
Suzanne Linn CPA a Professional Corporation
“We got all of our questions answered and was kind enough to accommodate meeting us in her very busy schedule.”
The 15 firms listed for Fullerton, CA are accounting practices that serve businesses and organizations. What each states about its CPA license and assurance work comes from its own website; ratings and quotes come from public reviews.
Area overview: Fullerton, CA
7 of the 15 firms we list are based in Fullerton; the other 8 serve Fullerton from towns including Orange (8 mi), Brea (5 mi) and City of Industry (11 mi). The firms on this page are rated from 4.1 to 5.0 across 396 reviews; 4 have 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the firms on this page are "efficient", "knowledge" and "patient". 1 is open on weekends. The services the firms on this page list most often on their websites are tax services (4), accounting services (2), tax planning (2) and tax preparation (2). 2 have a BBB rating of A or A+. 13 have ten or more years of experience, the longest 42 years. 2 offer payment plans and 3 offer a free initial consultation. We have a website on file for all 15 of the firms on this page; 14 publish a contact page; 10 list a public email and 2 take bookings online. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Do any accounting firms listed for Fullerton offer a free scoping call?
An initial consultation is offered without charge by 3 of the 15 firms. For assurance work that call is about scope and timing rather than advice, and it usually ends with a request list. Have the requirement letter from your lender or funder in front of you.
Anderson Donovan L CPA
“Wonderfully professional, caring, and extraordinary thorough!”
Tax Law Advocates - Tax Relief Company
“They Immediately took on the state and then tackled the IRS.”
Stan Diliberto, Cpa, CFP
“I like to get them done early--in February--and Stan always prepares me with an outline of items to include.”
ESY TAX Group
“I strongly recommend anyone who wants to work with someone who is friendly, honest, and knowledgeable should not hesitate to give ESY Tax Group a call and set up an appointment.”
MY TAX DOC Inc, Cpa's
“He helped me set up everything to get started with my new company.”
HRL TAX Solutions
“Henry was very helpful, attentive, personable & professional, I highly recommend & makes doing your taxes a much more pleasant experience.”
Scott Hukriede, CPA
“Thank you for all your knowledge, professionalism and accuracy to details.”
Nexus Square
“Nexus Square has been doing my taxes for several years now and they have made the process so convenient and easy!!!”
Pelletier & Leo
“Everything will be handled and resolved for us with enthusiasm,”
Why these companies made our list
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