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Bottomline Tax Service
“He's been doing my taxes for many years now and I've never had any issues”
Best Tax Preparation Services in Castro Valley, CA
15 companies listed · 7 in Castro Valley · 4 open weekends · 10 rated 4.5+
Data verified October 16, 2026
Avas Tax Services
“My husband and I have had Clare Flores prepare our tax documents for several years and we have been happy with her organization and professionalism.”
Parneet Gandhi CPA
“We have been working with Parneet Gandhi, CPA for past 7 years to file our personal taxes, incorporate/dissolve business and overall compliance.”
Hunter Tax Associates
“I highly recommend Hunter Tax Associates and can't wait to move forward with them for years to come.”
J C Tax Services
“JC Taxes is very professional my wife and I are very grateful for their excellent tax preparation.”
Sstar Services
“Stacy was very efficient and finished my taxes the same day I dropped my forms off to him!”
The 15 companies listed for Castro Valley, CA prepare and file tax returns for individuals and small businesses. What each says about its services and credentials comes from its own website; ratings and quotes come from public reviews.
Area overview: Castro Valley, CA
Of the 15 companies we list here, 7 are in Castro Valley itself and 8 come from San Ramon (3, 8 mi), Oakland (3, 10 mi) and Walnut Creek (2, 13 mi). 12 of the companies on this page have a rating, from 4.0 to 5.0 across 233 reviews; 2 have 50 or more reviews and 10 are rated 4.5 or higher. 4 are open on Saturdays and 1 on Sundays. 9 have ten or more years of experience, the longest 27 years. 1 is family- or locally-owned and 1 lists coupons or special offers. 1 has Spanish-speaking staff. We have a website on file for 14 of the companies on this page; 13 publish a contact page; 11 list a public email and 3 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
Are any tax preparers listed for Castro Valley open on Saturdays or Sundays?
4 of the 15 companies list weekend hours. Extended and weekend opening is common through the filing season and disappears afterward, so the hours shown here may not match what you find in the quiet part of the year. Call before you travel.
Minerva Bookkeeping & Tax Services
“Amada has been doing my taxes for a long time now and I know I can depend on her for her expertise!”
Ernst Wintter & Associates
Patten & Co. CPA
Brooker & Co., Cpas
Synergy Financial Services
Mueller & Strosberg
Better Taxes & Consulting
“We refer all our family's and friends and they love working with her too”
Bleske & Associates
“Andreas has proven that he has an inept and thorough understanding of the tax code which provides us the confidence that we are managing our business accordingly.”
Upscale Tax Professionals
“NicoleTysonWilliams was very professional while doing my taxes keep me updated on when my taxes will come and very respectful.”
Why these companies made our list
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