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BEST RATED FONTANA, CA ACCOUNTING FIRMS

3 Best Accounting Firms in Fontana, CA

Expert-recommended Top 3 Accounting Firms in Fontana, California. All of our accounting firms actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

Luis Castillo, CPA - Fontana, CA Accounting Firms
11+ YEARS IN TBR
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LUIS CASTILLO, CPA

(5.0 Score)
8456 Sierra Avenue,
Fontana, CA 92335 Directions

Since 2009

Specialty:

✓ Audit ✓ Accounting ✓ Tax ✓ Consulting ✓ Tax Preparation ✓ Financial Reporting ✓ Compliance ✓ Bookkeeping Services ✓ Tax Planning ✓ Business Consulting ✓ Payroll and HR ✓ Tax Problems

“Luis Castillo, CPA, provides accounting, consulting, and tax preparation services to small and medium-sized companies with the goal of supporting profitability. The firm focuses on timely and accurate reporting and compliance while working to manage income taxes. Luis Castillo serves as the firm’s accountant and has over 19 years of experience across industries such as transportation, manufacturing, development, construction, retail, nonprofit, governmental, and public accounting. He also assists clients who are starting a business by offering guidance on selecting an appropriate business structure. Contact Luis Castillo, CPA for consultation.”

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License #3863158

Contact:

(909) 997-3081

Mon-Fri: 10am - 5pm
Sat & Sun: By Appointment

TBR® Inspection Report:

Guzman & Associates - Fontana, CA Accounting Firms
Guzman & Associates - Fontana, CA Accounting Firms
11+ YEARS IN TBR
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GUZMAN & ASSOCIATES

(5.0 Score)
7672 Sierra Avenue,
Fontana, CA 92336 Directions

Since 1986

Specialty:

✓ Accounting and Bookkeeping ✓ Bank Reconciliation ✓ Expense Tracking ✓ Financial Statement Preparation ✓ Sales Tax Return Filing ✓ Payroll Services ✓ Handle Paycheck Distribution ✓ Federal and State Tax Deposits ✓ L Income Tax Preparation ✓ S-corporation and LLC Filing ✓ Corporate Tax Returns ✓ Non-profit Tax Preparation ✓ IRS Tax and Audit Representation ✓ Business Valuation

"Guzman & Associates provides accounting solutions designed to support clients in managing their financial goals. The team works with individuals and businesses seeking financial guidance. The firm offers tax, accounting, and consulting services tailored to client needs. Guzman & Associates implements practical solutions to manage internal functions, allowing clients to focus on their operations. Services include payroll, banking support, and check writing. The firm provides tax planning and preparation services and is equipped to prepare tax returns for all fifty states. Guzman & Associates focuses on accuracy and efficiency while delivering services suited to each client’s requirements.

2026 Update: Guzman & Associates prepares reports that evaluate market trends, industry conditions, and financial data to determine a business’s value. The firm has served the Fontana community for over 30 years."

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Contact:

(909) 829-1777

Mon-Fri 9am - 5pm
Sat & Sun: Closed

TBR® Inspection Report:

Cesar Rubio CPA - Fontana, CA Accounting Firms
Cesar Rubio CPA - Fontana, CA Accounting Firms
8+ YEARS IN TBR
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CESAR RUBIO CPA

(4.7 Score)
Fontana & Surrounding Areas,
Fontana, CA 92336

Since 2003

Specialty:

✓ Accounting Consulting Services ✓ Bookkeeping Consulting ✓ Tax Planning ✓ QuickBooks Support ✓ Business and Financial Consulting ✓ New Business Advisor ✓ Budgeting ✓ QuickBooks Consulting ✓ Tax Returns for Corporations ✓ Partnerships and Individuals ✓ Alternative Minimum Tax Planning ✓ Tax Alternatives and Ways To Reduce Your Taxes ✓ E-file

"Cesar Rubio CPA is a full-service firm that provides accounting and bookkeeping services to individuals and small businesses. The firm focuses on delivering reliable accounting and tax services with a personalized and responsive approach. Cesar Rubio CPA offers tax strategies aimed at supporting financial planning and business operations. Cesar Rubio is the firm’s accountant and has over 15 years of experience in accounting, tax, small business consulting, controllership, and QuickBooks consulting. He is a member of the California Society of Certified Public Accountants (CalCPA) and the American Institute of Certified Public Accountants (AICPA), and he is a certified QuickBooks ProAdvisor. The team works to build long-term client relationships and is available for appointments.

2026 Update: Cesar Rubio CPA provides a range of business consulting services, including strategic business planning and financial management. The firm aims to simplify the tax planning and preparation process by delivering timely and relevant information while helping manage current and future tax liabilities. Free initial consultation is available."

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Contact:

(626) 386-8291

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TBR® Inspection Report:

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LUIS CASTILLO, CPA REVIEWS

My family and I have been long-time clients of WWSA. Approximately 30 years or so. That proves that they can get the job done and that we're very satisfied. Jason and Mark are both great! They make a very efficient team. I highly recommend using.

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GUZMAN & ASSOCIATES REVIEWS

I have been dealing with Juan Guzman for years and he is a true professional. Juan will prepare your taxes promptly and give you the best advise. Thank you, Juan.

CESAR RUBIO CPA REVIEWS

They can help you minimize your taxes and save money. They also offer tax preparation services to businesses and individuals

TBR® Inspection Score Report

LUIS CASTILLO, CPA Total Inspection Points: 120/120
Acknowledgments: 10
Business Hours: 10
Contact Info: 10
License: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Review Analysis: 10
Reviews Accuracy of : 10
Reviews Study: 10
Social Media: 10
Website Source: 10

TBR® Inspection Score Report

GUZMAN & ASSOCIATES Total Inspection Points: 119/120
Business Images: 9
Business Hours: 10
Contact Info: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Review Analysis: 10
Reviews Accuracy of : 10
Reviews Study: 10
Website Source: 10

TBR® Inspection Score Report

CESAR RUBIO CPA Total Inspection Points: 113/120
Current Evaluation: 8
Social Media: 8
Acknowledgments: 9
Business Images: 9
Experience: 9
Contact Info: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Review Analysis: 10
Reviews Accuracy of : 10