金管家會計師及財務規劃
“The service attitude is good and the professional tax return manager can help with many professional issues related to personal finance👍👍👍 …”
Best Tax Preparation Services in Diamond Bar, CA
15 companies listed · 12 in Diamond Bar · 4 open weekends · 10 rated 4.5+
Data verified October 31, 2026
ABC Financial & Tax Services
“Personal relation and way of handing tax matters are very professionally handled”
Book onlineBook
Christopher G Carmona CPA
“Once again, Chris proved to be so helpful and answered my many questions and of course completion of my tax return.”
Harry C. Lin, CPA A Professional Corporation 林清吉聯合會計師事務所
“Good help for my taxes and accounting.”
Book onlineBook
Mooneem
“Highly recommend to speak with them before hiring anybody”
PFS Global
“Aaron and his team have been helping my family for years....”
The 15 companies listed for Diamond Bar, 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: Diamond Bar, CA
Of the 15 companies we list here, 12 are in Diamond Bar itself and 3 come from Pomona (2, 5 mi) and Walnut (1, 3 mi). 12 of the companies on this page have a rating, from 4.4 to 5.0 across 453 reviews; 4 have 50 or more reviews and 10 are rated 4.5 or higher. 4 are open on Saturdays and 1 on Sundays. The services the companies on this page list most often on their websites are tax services (3), accounting services (2) and payroll services (2). 1 has a BBB rating of A or A+. Domain records put 6 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 1 offers a free initial consultation. We have a website on file for 12 of the companies on this page; 8 publish a contact page; 5 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.
Why are tax preparers outside Diamond Bar shown on this page?
12 of the 15 companies are located in Diamond Bar. The others come from other towns within 10 mi. Since most returns are handled through a portal, what matters is whether the preparer files in your state. Distances are straight-line.
Mead, Coley and Company Cpa's
“We have been using them for our business for many years and they are professional and knowledgeable.”
California & Federal Tax Services - Taxmasters
“We totally trust her and are confident that our taxes are being done properly and thoroughly.”
Vinoo Bookkeeping & Tax Services
“I have used Vinoo Bookkeeping in Diamond Bar for my business tax and accounting.”
Jiao Yu EA
Patrick W. Medlock, CPA
FAN & LI
Zamora Services #1 Taxes & Immigration
“Did my taxes somewhere else and my Tax bill was $15,600, came to Zamora services to get a 2nd opinion and they lowered my tax bill!”
Book onlineBook
Diamonds Tax
“Dalia at Diamonds Tax has been doing my taxes for 15 years and I would never go anywhere else!”
Online Tax Filer
“I received the refund promise by them.”
Why these companies made our list
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