CPA & Insurance
★★★★★ (110 reviews)21343 Cold Spring Ln, Diamond Bar, CA 91765
(909) 479-9639
Website: wendyliu-cpa.com
Hours: {"Friday":["9 AM–7 PM"],"Monday":["9 AM–7 PM"],"Saturday":["10 AM–2 PM"],"Sunday":["Closed"],"Thursday":["9 AM–7 PM"],"Tuesday":["9 AM–7 PM"],"Wednesday":["9 AM–9 PM"]}
Christopher G Carmona CPA, APC
★★★★★ (24 reviews)745 Panhandle Dr, Diamond Bar, CA 91765
(800) 227-2891
Website: www.settlemytaxdebts.com
Hours: {"Friday":["9 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}
Bharti Sudan, CPA Inc.
★★★★½ (20 reviews)23341 Golden Springs Dr Ste 204, Diamond Bar, CA 91765
(909) 861-5642
Website: www.cpaofdiamondbar.com
Hours: {"Friday":["10 AM–5 PM"],"Monday":["10 AM–5 PM"],"Saturday":["10 AM–2 PM"],"Sunday":["Closed"],"Thursday":["10 AM–5 PM"],"Tuesday":["10 AM–5 PM"],"Wednesday":["10 AM–5 PM"]}
Frontier Tax Consulting, CPA | 藍海會計師事務所 (加州）
★★★★½ (19 reviews)1370 Valley Vista Dr Ste 210, Diamond Bar, CA 91765
(626) 699-9959
Website: frontiertax.us
Hours: {"Friday":["9:30 AM–6 PM"],"Monday":["9:30 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9:30 AM–6 PM"],"Tuesday":["9:30 AM–6 PM"],"Wednesday":["9:30 AM–6 PM"]}
Grace Tax Group
★★★★★ (16 reviews)20955 Pathfinder Rd, Diamond Bar, CA 91765
(909) 843-6321
Website: www.gracetaxgroup.com
Hours: {"Friday":["9:30 AM–5 PM"],"Monday":["9:30 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9:30 AM–5 PM"],"Tuesday":["9:30 AM–5 PM"],"Wednesday":["9:30 AM–5 PM"]}
Harry C. Lin, CPA A Professional Corporation 林清吉聯合會計師事務所
★★★★½ (13 reviews)888 S Brea Canyon Rd Suite 225, Diamond Bar, CA 91789
(626) 810-3403
Website: www.harrylincpa.com
Hours: {"Friday":["9 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}
PFS Global
★★★★★ (10 reviews)556 N Diamond Bar Blvd UNIT 101, Diamond Bar, CA 91765
(909) 294-7372
Website: www.pfsonline.com
Hours: {"Friday":["8 AM–6 PM"],"Monday":["8 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["8 AM–6 PM"],"Tuesday":["8 AM–6 PM"],"Wednesday":["8 AM–6 PM"]}
California & Federal Tax Services - Taxmasters Inc.
★★★★★ (5 reviews)20855 Golden Springs Dr Ste 104, Diamond Bar, CA 91789
(909) 594-9926
Hours: {}
Diamond Tax Service
★★★½☆ (6 reviews)588 N Diamond Bar Blvd, Diamond Bar, CA 91765
(909) 569-1878
Hours: {"Friday":["9 AM–6:30 PM"],"Monday":["9 AM–6:30 PM"],"Saturday":["9 AM–5 PM"],"Sunday":["Closed"],"Thursday":["9 AM–6:30 PM"],"Tuesday":["9 AM–6:30 PM"],"Wednesday":["9 AM–6:30 PM"]}
Parikh Mehta & Associates
★★★★★ (4 reviews)22632 Golden Springs Dr, Diamond Bar, CA 91765
(909) 861-8100
Website: www.pmaadvisors.com
Hours: {"Friday":["8:30 AM–4:30 PM"],"Monday":["8:30 AM–4:30 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["8:30 AM–4:30 PM"],"Tuesday":["8:30 AM–4:30 PM"],"Wednesday":["8:30 AM–4:30 PM"]}
UEHLE TAX SERVICES LLC
★★★★★ (3 reviews)23555 Golden Springs Dr a2, Diamond Bar, CA 91765
(909) 860-6626
Website: uehletax.com
Hours: {}
Mooneem
★★★★★ (3 reviews)556 N Diamond Bar Blvd #201-B, Diamond Bar, CA 91765
(909) 839-6789
Website: www.mooneem.com
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}
David Shin & Co., CPA
★★★☆☆ (4 reviews)22632 Golden Springs Dr UNIT 105, Diamond Bar, CA 91765
(909) 594-5052
Website: cpashin.com
Hours: {"Friday":["9 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}
nbs Tax Services
★★★½☆ (3 reviews)1155 S Diamond Bar Blvd, Diamond Bar, CA 91765
(909) 861-6003
Hours: {}
ABC Financial & Tax Services
★★★★★ (2 reviews)23341 Golden Springs Dr #101, Diamond Bar, CA 91765
(909) 396-5272
Hours: {"Friday":["10 AM–5 PM"],"Monday":["10 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["10 AM–5 PM"],"Tuesday":["10 AM–5 PM"],"Wednesday":["10 AM–5 PM"]}
Ray Park CPA
★★★★★ (2 reviews)2707 S Diamond Bar Blvd #203, Diamond Bar, CA 91765
(909) 444-1888
Hours: {}
G&L CPA Inc
★★★★★ (2 reviews)660 N Diamond Bar Blvd STE 208, Diamond Bar, CA 91765
(626) 337-6138
Hours: {"Friday":["9:30 AM–5:30 PM"],"Monday":["9:30 AM–5:30 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9:30 AM–5:30 PM"],"Tuesday":["9:30 AM–5:30 PM"],"Wednesday":["9:30 AM–5:30 PM"]}
Christopher C Koo Accountancy
★★½☆☆ (3 reviews)2705 S Diamond Bar Blvd STE 218, Diamond Bar, CA 91765
(909) 895-8888
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}
KWL LLP
★★★★★ (1 reviews)3333 S Brea Canyon Rd STE 206, Diamond Bar, CA 91765
(909) 575-8168
Website: kwlllp.com
Hours: {}
Exact Accounting & Tax Services Inc.
★★★★★ (1 reviews)23555 Golden Springs Dr, Diamond Bar, CA 91765
(626) 217-5038
Website: exactacc.com
Hours: {}
A & N Accounting
★★★★★ (1 reviews)1345 S Diamond Bar Blvd # Z, Diamond Bar, CA 91765
(909) 396-0081
Hours: {}
Adcon
★★★★★ (1 reviews)1100 Seneca Pl, Diamond Bar, CA 91765
(909) 896-8005
Hours: {"Friday":["8:30 AM–5:30 PM"],"Monday":["8:30 AM–5:30 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["8:30 AM–5:30 PM"],"Tuesday":["8:30 AM–5:30 PM"],"Wednesday":["8:30 AM–5:30 PM"]}
Subhash Tax & Financial Services
★★★★★ (1 reviews)2914 Rising Star Dr, Diamond Bar, CA 91765
(909) 598-4001
Hours: {}
PW CPA, A PROFESSIONAL CORP
★★★★★ (1 reviews)3230 Fallow Field Dr Suite 208, Diamond Bar, CA 91765
(626) 283-1132
Hours: {"Friday":["9:30 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}
Jean & Co CPAs PC
★★★★★ (1 reviews)21671 Gateway Center Dr # 109, Diamond Bar, CA 91765
(909) 860-1800
Hours: {}
Taxperts Inc
★☆☆☆☆ (3 reviews)920 N Diamond Bar Blvd, Diamond Bar, CA 91765
(909) 861-5300
Hours: {}
CCZ Accounting, LLP
★☆☆☆☆ (1 reviews)20627 Golden Springs Dr #1C, Diamond Bar, CA 91789
(909) 598-8331
Website: ccztax.com
Hours: {"Friday":["9 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}
Happy Tax
23545 Palomino Dr, Diamond Bar, CA 91765
(951) 662-0899
Hours: {"Friday":["Closed"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["9 AM–5 PM"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}
FAN & LI LLP, CPA
660 N Diamond Bar Blvd STE 188, Diamond Bar, CA 91765
(626) 231-9818
Website: www.fanandli.us
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}
Next-Gen Tax Solutions
1350, Diamond Bar, CA 91765
(909) 670-2310
Hours: {"Friday":["10:30 AM–6 PM"],"Monday":["10:30 AM–6 PM"],"Saturday":["1–4 PM"],"Sunday":["Closed"],"Thursday":["10:30 AM–6 PM"],"Tuesday":["10:30 AM–6 PM"],"Wednesday":["10:30 AM–6 PM"]}
Millennial CPA, Tax & Accounting
20955 Pathfinder Rd #100, Diamond Bar, CA 91765
(909) 843-6402
Website: www.taxcpasolution.com
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}
Jiao Yu EA Inc
91765, California, Diamond Bar, N Diamond Bar Blvd, Jiao Yu EA Inc
(626) 275-4912
Website: jiaoyuea.com
Hours: {"Friday":["9:30 AM–6 PM"],"Monday":["9:30 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9:30 AM–6 PM"],"Tuesday":["9:30 AM–6 PM"],"Wednesday":["9:30 AM–6 PM"]}
K&R Bookkeeping-Payroll LLC
2361 Canyon Park Dr, Diamond Bar, CA 91765
(714) 858-4252
Hours: {"Friday":["8 AM–8 PM"],"Monday":["8 AM–8 PM"],"Saturday":["10 AM–6 PM"],"Sunday":["12–9 PM"],"Thursday":["8 AM–8 PM"],"Tuesday":["8 AM–8 PM"],"Wednesday":["8 AM–8 PM"]}
Pagan Orien J
23555 Golden Springs Dr # A2, Diamond Bar, CA 91765
(909) 860-6626
Hours: {}
Mead, Coley and Company CPA's
3333 S Brea Canyon Rd STE 119, Diamond Bar, CA 91765
(909) 444-0252
Website: meadcoley.com
Hours: {"Friday":["9:30 AM–4 PM"],"Monday":["9:30 AM–4 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9:30 AM–4 PM"],"Tuesday":["9:30 AM–4 PM"],"Wednesday":["9:30 AM–4 PM"]}
R & L Accountancy Corporation
2705 S Diamond Bar Blvd STE 378, Diamond Bar, CA 91765
(909) 598-7510
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}
About Tax Preparers in Diamond Bar, CA
Diamond Bar, California, is home to a diverse mix of professionals, small business owners, and families, many of whom commute to nearby hubs like Los Angeles or Orange County. The city’s economy is anchored by retail centers, medical offices, and service-based businesses, which often create unique tax situations—such as self-employment income, home office deductions, or multi-state filing requirements. A local tax preparer familiar with Diamond Bar’s economic landscape can help navigate these complexities while ensuring compliance with both state and federal regulations.
Residents and business owners in Diamond Bar may need a tax preparer for several reasons. Changes in income, investments, or family status (like marriage or a new child) can complicate a tax return. Others may want to maximize deductions or credits, such as those for education or energy-efficient home improvements. A qualified preparer can also help avoid costly errors and provide year-round planning advice.
When choosing a tax professional in Diamond Bar, look for someone with relevant experience and clear communication. Check credentials, read reviews, and ask about their approach to your specific situation. The right preparer will make the process smoother and give you confidence in your filings.
Frequently Asked Questions
What qualifications should a tax preparer have?
At minimum, a paid tax preparer must have an IRS-issued PTIN. Look for additional credentials like Enrolled Agent (EA) status, CPA license, or completion of the IRS Annual Filing Season Program. These indicate higher levels of training and accountability.
How much does tax preparation cost?
Simple individual returns (W-2 income only) typically cost $100-$300. Returns with itemized deductions, self-employment income, or rental properties can cost $300-$800 or more. Always ask for a fee estimate upfront before committing.
What documents do I need to bring to my tax preparer?
Bring all W-2s, 1099 forms, records of deductible expenses, last year's tax return, Social Security numbers for all family members, bank account information for direct deposit, and any IRS correspondence you have received.
BeforeTaxUSA.com is a free informational directory. Listings are compiled from publicly available data and do not constitute an endorsement or recommendation. Verify credentials, licensing, and reviews independently before engaging any professional. Listings appear in no particular order unless otherwise noted.
Business owners: to update or remove a listing, email info@beforetaxusa.com.