At James Accounting Service in Rancho Cucamonga, clients receive top-tier financial guidance from a seasoned professional. With years of experience and a deep understanding of tax laws and QuickBooks, James offers a comprehensive suite of services that cater to both personal and business needs. Praised for his professionalism, responsiveness, and quality, James is known for his ability to navigate the complexities of cash flows and tax regulations. His proactive approach ensures that clients are well-informed about new laws, helping them to optimize their financial strategies. Whether it's meticulous bookkeeping, tax preparation, or strategic business advice, James Accounting Service is a trusted partner for those seeking to secure their financial future.
Google Review
5 stars
James has taken a load off my back. I can't even begin telling all the bad experiences I've gone thru other accountants. From the beginning, I had a good feeling about James, and he didn't let me down. I look forward now, to getting my taxes done in a timely manner with the help of James.
- Abel Rodriguez - Sep 03, 2025
Google Review
5 stars
- Joseph Alexander - Mar 25, 2025
Google Review
5 stars
As a small business owner like myself who wants to expand and grow will need accountant like James who is very attentive and professional for my business.
- Steph Stapornkul - May 16, 2024
Google Review
5 stars
Fast. Clear. Concise. James made filing taxes a breeze for a 25-year old!
- Professor J - Apr 09, 2024
Google Review
5 stars
James Accounting Service has been an indispensable asset to our company since 2017, propelling our growth through its exceptional tax preparation and accounting services. The professionalism exhibited by James and his team is noteworthy, as they consistently display a high level of competence and dedication to maintaining the precision and compliance of our financial records. Their accessibility and prompt responsiveness set them apart, providing us with the confidence that our inquiries are addressed promptly and thoroughly. James's expertise in tax preparation ensures accurate and comprehensive filing, taking advantage of all eligible deductions and credits. The proactive approach to staying abreast of the latest tax laws has saved us money and provided peace of mind. James Accounting Service is a reliable, efficient, and highly recommended partner in navigating tax and accounting complexities for business success. We eagerly anticipate a continued and prosperous partnership.
- Roger - Mar 01, 2024
Google Review
5 stars
You can only get very efficient and accurate service from James and we are very happy that he is our accountant for both personal and business.
- Edith Sales - Nov 07, 2022
Google Review
4 stars
James Accounting has been our financial guide and tax authority for many years. The service is excellent and they keep us abreaat of any new laws and conditions concerning our personal and business tax situation. Timely and responsive.
- John Sullivan - Nov 03, 2022
Google Review
5 stars
Excellent service and results!
- MJay Wiessner - Nov 03, 2022
Google Review
5 stars
Positive: Professionalism, Quality, Responsiveness

This is a one-stop-shop! Not only is James a top-tier accountant, he's also a Quickbooks professional advisor—one that can handle quickbooks database works as well. It doesn't get any better.

I started using James services 10 years ago and there has never been any issue that couldn't be reconciled. He's a sources of sound business advice with years of experience, and multitudes of clients under his belt.

His understanding of cash flows and tax law are essential for anyone trying to find their way through this complicated and tumultuous landscape. I personally would never start a business without consulting with James first.

Moreover, James is also rich in referrals. His services include the services of his trusted customers, ones that have helped me many times over. Love this place.
- GrowoniX Water Systems - Oct 27, 2020
Google Review
5 stars
Positive: Professionalism, Quality, Responsiveness, Value

James always takes care of all of our needs.
- Geof Kine - Oct 19, 2020
Google Review
5 stars
Positive: Professionalism, Responsiveness

James has done my taxes for years and always stays up to date with the new tax laws. Thank you James
- Rm P - Oct 18, 2020
Facebook Review
5 stars
- Ryan Oshima - Oct 17, 2020
Google Review
5 stars
Positive: Professionalism, Responsiveness

As a small business owner like myself who wants to expand and grow will need accountant like James who is very attentive and professional for my business.
- Steph Stapornkul - Oct 16, 2020
Google Review
5 stars
Positive: Professionalism, Responsiveness

James is very professional and definitely knows his stuff very well. Would highly recommend to those who love save time and being organized by a REAL professional bookkeeper!
- Robert Su - Oct 16, 2020

Frequently Asked Questions

FAQ's from customer experiences

What types of accounting services does James Accounting Service provide?
James Accounting Service offers tax preparation, bookkeeping, QuickBooks reconciliation, and general accounting services for both personal and business clients.
How does James Accounting Service handle communication and responsiveness?
Clients report that James Accounting Service is prompt and clear in communication, responding quickly to inquiries and providing thorough explanations of financial matters.
Is James Accounting Service experienced with small businesses and up-to-date on tax laws?
Yes, James Accounting Service is experienced with small businesses and stays current with federal and state tax codes to ensure accurate filings and maximize eligible deductions.


James Accounting Service | 10950 Arrow RTE, Rancho Cucamonga CA 91730, United States