Winnes Wong, CPA

A Professional Corporation

Group photo of Wong CPA.

Our principal has significant years of public accounting experience and her strong auditing background can minimize the risk of being audited by tax agencies.

Our firm has expertise in wholesale, import & export, physicians, legal, restaurants, retail, auto body & repair, construction company, merchant services, marketing, internet sales, real estate development, computer consulting, dentists, freight forwarding, veterinarians, money transfer, and other companies.

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Bilingual Communication

Our team members are fluent in English, Mandarin, Cantonese.

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We have significant years of accounting experience
in various industries.

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Effective Services

Providing personalized and comprehensive tax, audit and business consulting services to businesses and individuals


We provide a wide variety of services, from accounting to finance, if you could think of it, we have it here in Winnes Wong, CPA.

Accounting Services

Bookkeeping service, accounting system set-up, review and compilation services for financial statements.

Taxation Services

Our state of the art software enables us to help you prepare taxes among 50 states.

Finance Services

Loan file documentation, SBA loan packaging, business plans, and projections.

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-Michael Herman,
President, Mambo Trading

- "In today’s business world, it is increasingly difficult to find a reliable CPA who cares about your company and provides strategic financial consulting to help you grow. I realized that having a successful business in California takes more than just making sales; it makes careful tax planning to bring a successful business to the next level. I have been using the service of Winnes Wong, a certified public accounting firm, for approximately 5 months and they have become an extension of our business in many respects. The courteous staff always goes the extra mile to ensure we follow the right tax procedures. They are well-organized and efficient. My business operations run more efficiently because I have a competent firm who handles the complexity of tax rules and regulations. I would highly recommend Winnes Wong, C.P.A. to anyone who is looking for a new C.P.A. or needing tax/financial planning advice."

-"In business with Winnie Wong, C.P.A. firm, for almost 10 years, we are deeply impressed by their positive attitude and enthusiasm towards their work. With their professional knowledge, they have helped us work out every single problem. Their commitment to quality services to their customer is highly appreciated. We are here thank you for their assistance and effort throughout the years and wish them every success!!"

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-Ivonne Sudhartio
KrooUSA Inc.

-"I would like to wish you and your family a Merry Christmas and a prosperous New Year. Kindly also accept my gratitude and thanks for your professional services, especially this year when our company went through State Board of Equalization Tax Audit. Even though we have had our professional relationship in the last four years, but we never been worked so hard and so close together during the preparation materials for the audit representation. You were there for us through out the time. Certainly, we appreciate all your professional experiences and in-depth knowledge in preparing for the audit. You have guided us step by step from the very beginning until the representation of our company at the end. Furthermore, I am very grateful to know you as a person, a very nice and warm person to be around, with high integrity and professionalism. Most of all, I always joyful when receiving all my inquiries were replied in a prompt fashion by phone or e-mail. Definitely it could make my days gone by easier. Please do enjoy your Holiday Seasons. I am looking forward to working with you in the upcoming years. Hopefully, we can spare time, in between our hectic and busy schedules."

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-Richard A. Hugh, CFM
Senior Financial Advisor , Merrill Lynch

-"Winnes Wong and her staff have been handling my personal account for over 10 years. I am very satisfied with the service and received excellent advice from her in the past. I have highly recommended her to my friends and clients and will continue to do so in the future."

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-Richard A. Hugh, CFM
Sanisafe Food Safety & Sanitation

-"One Key factor in starting a business is having a very good honest credible accountant. Winnes W. is knowledgeable and gave me great advice and information from the beginning of my business. She is personable and reliable who immediately attends to my needs efficiently. Not only she relieves the burden during filings but facilitates matters productive and professional. She gets the work done. I am very confident to have Winnes and her staff handling my business affairs."

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-Arlene Villarin-Simonian
Home Mortgage Consultant, Wells Fargo Home Mortgage

-"Winnes Wong and her staff have been handling my personal account for over 10 years. I am very satisfied with the service and received excellent advice from her in the past. I have highly recommended her to my friends and clients and will continue to do so in the future."

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-Mohammad Hanif
Avis Rental Car

-"We are glad to use Winnes Wong CPA’s service because Winnes is very professional, intellectual and thoughtful. She helps us to simplify our accounting and payroll, it saves our time and tension. Since I used her service, I have a better sleep. I’m going to continue with her service, the same time we will use her professionalism. Currently, I have AVIS RENTAL CAR and REALTY business, I’m very happy with her service. At the same time, I will recommend my friends, and persuade them to use her service and gain happiness with the accounting. And she is the greatest CPA for me. I appreciate it again for what she brought me."

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-Jason Ma
C.F.O. , Kodec Development Inc.

-"If you are looking for professional, valuable & resourceful support, you have only one option, WINNES WONG, C.P.A.. Winnes has served our company for over 3 years and she is our good business partner."