Fallahi Zaher, Attorney At Law, CPA
“And that's why I never hesitate to refer my family and friends for all their legal and financial matters to him.”
Best Accountants in Costa Mesa, CA
22 firms listed · all 22 in Costa Mesa · 5 open weekends · 14 rated 4.5+
Data verified October 18, 2026
Bere
“They ensured that every deduction and credit I was eligible for was included in my filing, which resulted in a much larger refund than I anticipated.”
Levy Accounting
“I'm so thankful he has helped us navigate through tax season every year and made the process as stress free as possible.”
Nguyen & Company, CPA
“They strive to ensure their clients understand the process and are satisfied.”
Donna Stern CPA
“Not only is she knowledgeable in all facets of tax preparation, but she prepared a court ordered accounting for a special needs trust I manage.”
Irene Mack CPA
“They are a wealth of knowledge and have made some great suggestions with regard to saving money and being forthright with deductions that may have gone unnoticed without this knowledge.”
The 22 firms listed for Costa Mesa, CA prepare accounts, statements and returns for businesses and individuals. What each says about its services and software comes from its own website; ratings and quotes come from public reviews.
Area overview: Costa Mesa, CA
All 22 firms we list here are in Costa Mesa itself. 18 of the firms on this page have a rating, from 4.0 to 5.0 across 171 reviews; 14 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (96%), quality (75%) and responsiveness (75%). 4 are open on Saturdays and 2 on Sundays. The services the firms on this page list most often on their websites are tax preparation (4), business consulting (2), individual tax (2), non-filed tax returns (2) and tax planning (2). 2 have a BBB rating of A or A+. Domain records put 17 websites of the firms on this page at ten or more years old; the oldest dates from 1999. 3 offer payment plans and 5 offer a free initial consultation. We have a website on file for 20 of the firms on this page; 20 publish a contact page; 12 list a public email and 1 takes bookings online. We count these figures across the firms on this page; hours and prices change, so confirm the details with the firm before you book a consultation.
Which accounting firms listed for Costa Mesa describe their services online?
20 of the 22 firms on this page have a website on file. Most list the industries they serve and the bookkeeping software they support, which is the fastest way to find a fit. Everything there is the firm's own description of itself.
Weyer Crellin & Custer
“All of them are very knowledgeable and easy to work with.”
Kempton Accountancy
“He has many years of experience and knows how to navigate the tax world efficiently.”
Vertical Advisors
“Without a doubt, Peter Degregori & the staff there at Vertical Advisors are the most knowledgeable, helpful & professional CPA's that I have worked with.”
Goodrich, Thomas, Cannon & Reeds
Izumi & Co. Accountancy Corporation
“I have worked internationally at both Japanese and American companies and Izumi-san is an expert at filing in both territories.”
Clear Choice Tax Solutions
Mesa Verde Consulting
Prizer & Flores Cpas & Business Advisors
“I have been a client with Prizer & Flores for many years and have been satisficed with there Excellent service.”
David A. Vasquez, CPA
“He's very easy to work with, very knowledgeable in his field, and gets our forms and paperwork back in a timely manner.”
Coast Accountancy Corporation
Olmsted & Associates Accountancy Corporation
“They are excellent and extremely professional.”
OC Probate & Trust Services
Michael A Darany, CFP , EA
Schonwit & Co
“I highly recommend their services and will be a client for life.”
Alfred M Clancy CPA
Century Business Services
Why these companies made our list
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