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24 companies listed · all 24 in Costa Mesa · 5 open weekends · 16 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
The 24 companies listed for Costa Mesa, 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.

All 24 companies we list here are in Costa Mesa itself. We have 31 companies in Costa Mesa on file; this page shows the highest-rated 24. 19 of the companies on this page have a rating, from 4.2 to 5.0 across 228 reviews; 16 are rated 4.5 or higher. When clients rate these companies on specific qualities, they most often praise professionalism (86%), responsiveness (76%) and quality (67%). 4 are open on Saturdays and 1 on Sundays. The services the companies on this page list most often on their websites are tax preparation (4), tax services (3), business consulting (2), business services (2) and irs payment plans (2). 1 shows a license on its website and 2 have a BBB rating of A or A+. Domain records put 15 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 2 offer payment plans; 7 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 23 of the companies on this page; 20 publish a contact page; 18 list a public email and 4 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book a consultation.
5 of the 24 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.