Rancho Cucamonga CPA Firm
A Treasury-authorized CPA firm headquartered right here in Rancho Cucamonga, helping local businesses with tax resolution, audit defense, bookkeeping, and advisory since 2010.
G&S Accountancy is a full-service CPA firm at 8300 Utica Ave, Suite 283, Rancho Cucamonga, CA. Led by AJ Singh, CPA, EA, the firm provides tax resolution, EDD/IRS/CDTFA audit defense, bookkeeping, and business advisory to Rancho Cucamonga and the wider Inland Empire.
Our home base
The CPA firm Rancho Cucamonga businesses grow with
G&S Accountancy has called Rancho Cucamonga home since 2010. From our office on Utica Avenue, we serve owners across the Inland Empire, the construction contractors, logistics and trucking operators, nonprofits, and professional-service firms that make up this corner of San Bernardino County.
Being local matters when a tax problem or an audit lands on your desk. You are not routing your file to an out-of-state call center; you are working with a credentialed CPA and Enrolled Agent minutes from your business, backed by a 20-plus person team that has represented Inland Empire clients before the IRS and every major California tax agency.
Whether you need help resolving a balance with the IRS or Franchise Tax Board, defending an EDD worker-classification audit, cleaning up your books, or simply filing on time with a plan to owe less, we handle it under one roof.
How we help Rancho Cucamonga businesses
One Treasury-authorized CPA firm for the tax, compliance, and accounting work that keeps Rancho Cucamonga businesses running.
Tax Resolution
IRS, FTB, EDD, and CDTFA relief: installment agreements, penalty abatement, levy release, Offers in Compromise, and unfiled returns.
Learn more →Audit Defense
Representation for EDD payroll and worker-classification audits, IRS examinations, and CDTFA sales-tax audits.
Learn more →Bookkeeping
CPA-supervised monthly bookkeeping, catch-up and cleanup, and QuickBooks Desktop to Online migration in flat-rate packages.
Learn more →Trucking & IFTA
Fuel-tax and mileage workflows, IFTA preparation, and Federal Excise Tax support for carriers and logistics operators.
Learn more →Tax Preparation & Planning
Business and individual tax preparation with year-round planning to lower what you legally owe.
Learn more →Reviews & Financial Statements
Compiled, reviewed, and audited financial statements for lenders, bonding, and stakeholders.
Learn more →Built for the local economy
Industries we serve in Rancho Cucamonga
Rancho Cucamonga sits at the heart of the Inland Empire economy, where distribution, construction, and professional services drive growth. We focus where local owners need the most help.
Construction & Contractors
Job-costing, retention, and multi-year work-in-progress accounting, plus reviewed financials for bonding and bank financing.
Transportation & Logistics
IFTA, fuel tax, and Federal Excise Tax workflows for the carriers and warehouses that anchor the region.
Nonprofit Organizations
Fund accounting, board-ready reporting, and compliance for the local nonprofits serving San Bernardino County.
Professional Services & Small Business
Bookkeeping, payroll coordination, and tax planning for growing service firms and owner-operated businesses.
Retail & Restaurants
Sales-tax (CDTFA) compliance, cash-flow visibility, and clean books for consumer-facing businesses.
Real Estate & Investors
Entity structuring, rental and portfolio accounting, and planning for owners with property across the Inland Empire.
Why Rancho Cucamonga businesses choose G&S
A local CPA with the credentials of a national firm
You get the accessibility of a neighborhood accountant with the representation power of a Treasury-authorized firm. AJ Singh, CPA, EA, is authorized to represent taxpayers before all administrative levels of the IRS, and our team handles FTB, EDD, and CDTFA matters that trip up businesses across the region.
That combination is hard to find locally: many Rancho Cucamonga businesses end up hiring a bookkeeper for the day-to-day and a separate specialist when a tax agency comes calling. With G&S, the same firm that keeps your books can defend them.
- Led by AJ Singh, CPA, EA, a U.S. Treasury-authorized practitioner
- Representation before the IRS, FTB, EDD, and CDTFA
- 15+ years serving Inland Empire businesses
- Bilingual support in English and Spanish
- Headquartered at 8300 Utica Ave, minutes from anywhere in Rancho Cucamonga
What clients say
Trusted by clients across the Inland Empire
“Very responsive especially, Lorena. She helped me numerous times navigating tough tax resolutions with IRS and FTB in a timely manner. She is the problem solver!!”
“I have been with this company for quite some time now, about 10 years, and the staff is amazing. They respond quickly and won’t stop reaching out until the job is done.”
“Quality service, always on time. Lorena Contreras atiende y explica muy bien en Español.”
“Very proactive and will consistently check up with you to ensure everything goes smoothly.”
Rancho Cucamonga CPA FAQ
Rancho Cucamonga accounting questions, answered
Common questions from Rancho Cucamonga business owners about working with G&S Accountancy.
Book a Free Consultation →Our office is at 8300 Utica Ave, Suite 283, Rancho Cucamonga, CA 91730. We are open Monday through Friday, 9:00 AM to 5:00 PM, and you can reach us at (909) 217-7855.
Your Rancho Cucamonga CPA is a call away
Book a free consultation and find out how G&S can help your Rancho Cucamonga business with tax, audit defense, bookkeeping, and advisory.