About AccuPay Systems: Southern California’s Independent Payroll Bureau Powered by iSolved HCM
If you are searching for a reliable payroll and HR partner in Southern California, here is the short answer: AccuPay Systems is an independent, full-service payroll and HR service bureau headquartered in Temecula, California. We are not a software company. We are a dedicated team of payroll professionals who manage payroll, taxes, HR, and compliance on your behalf — using the most awarded enterprise HCM platform in the SMB market, iSolved HCM.
Our current ownership has been in the payroll business for over 20 years, and we still serve our very first client from 2006. That kind of client retention doesn’t happen by accident. It happens because we treat every business we serve as a long-term partnership — not a transaction.
The AccuPay Story: From Smart Accountancy to a Legacy Payroll Brand
AccuPay Systems has a history that runs deeper than most people realize. The company was originally founded in 1978 by CCH, now known as Wolters Kluwer — one of the largest professional services information providers in the world. CCH later spun off and sold the AccuPay operation in 1992, and the buyers who acquired it ran the business successfully for the next two decades.
Meanwhile, in January 2006, Felix Mwania founded Smart Accountancy, a firm specializing in accounting, bookkeeping, payroll, and tax services. When the longtime AccuPay owners were ready to retire, Felix purchased AccuPay Systems and merged his existing payroll clients from Smart Accountancy into the company. The result was a seamless union of a legacy payroll brand with fresh, hands-on leadership — and that union continues today.
The legal name of the company is AccuPay, Inc., doing business as AccuPay Systems. Our headquarters are in Temecula, California, in Riverside County. We previously operated from Huntington Beach, California, before relocating to Temecula in 2016.
Core Services: What AccuPay Systems Does for Your Business
AccuPay Systems is a full-service bureau — which means we handle the work so you don’t have to. Here’s what we take off your plate:
💼 Payroll Processing & Tax Filing
We process payroll, calculate withholdings, file all federal, state, and local taxes, and ensure every deposit and return is accurate and on time. California payroll compliance is complex — we manage it completely.
👥 HR Management
From employee records and onboarding to compliance tracking and organizational reporting, our HR services give you a complete system for managing your workforce.
⏱️ Time Tracking & Attendance
Biometric time clocks, mobile clock-in, and automated overtime calculations eliminate manual timekeeping errors and reduce payroll disputes.
🎯 Talent Acquisition & Management
Recruiting, applicant tracking, onboarding, performance management, and learning management are all built into the iSolved platform we use to serve you.
🏥 Benefits Administration
Open enrollment, carrier feed integration, ACA compliance reporting, and employee self-service benefits management — all handled seamlessly.
🖥️ Technology Support & Training
Every AccuPay client gets expert training and ongoing platform support. We don’t hand you software and wish you luck — we walk beside you.
Who We Serve
AccuPay Systems serves a wide range of organizations across all 50 states. Our clients include small and mid-size businesses with as few as one employee and as many as several thousand. We also serve:
Whether you operate a restaurant in the Temecula Valley, a charter school in Riverside County, or a growing technology company in Orange County, AccuPay has the platform depth and California compliance expertise to support your business at every stage of growth.
Certifications and Credentials
AccuPay Systems holds credentials that matter — particularly for organizations with government contracting requirements or supplier diversity goals.
Certified Minority Business Enterprise (MBE) — AccuPay is a certified MBE, with our application for 8(a) Certified Small Disadvantaged Business status currently in process. We are also an authorized iSolved HCM deployment partner, meaning we have direct access to iSolved’s engineering and support resources.
Combined with over 20 years of payroll experience in California, these credentials position AccuPay as a trusted partner for both commercial and public-sector clients.
The Technology We Use: iSolved HCM
AccuPay Systems chose the iSolved HCM platform because it is, by independent measurement, the best enterprise-grade HCM technology available for small and mid-size businesses. Here’s what the data shows:
Industry Recognition:
⭐ #1 SMB HRMS — Sapient Insights HR Systems Survey (longest-running HR technology survey, covering 2,500+ organizations)
⭐ Leader — Nucleus Research SMB HCM Technology Value Matrix (March 2025)
⭐ Leader — NelsonHall Digital Payroll Capability
⭐ Leader — ISG Payroll Processing Report (under 1,000 employees)
iSolved was founded in 1986 and serves over 189,000 customers nationwide. The platform scales from a single employee to thousands without requiring a platform migration — meaning you’ll never need to rip out your system and start over as your company grows. iSolved releases platform updates every three weeks, and its customer support hold time averages under 24 seconds.
The full iSolved module suite includes:
Our Independence Matters: AccuPay is not owned by or affiliated with iSolved HCM. We chose this platform because it is the best technology for our clients — not because of a corporate mandate. That independence means our loyalty is always to you, not to a software vendor.
The Service We Deliver: 20+ Years and Still Counting
Technology alone doesn’t retain clients for two decades. Service does.
Our first client joined us in 2006. They are still with us today. That’s not a marketing slogan — it’s a verifiable track record. AccuPay has achieved what we believe is the best client retention in the payroll industry, and it comes down to one principle: every client gets a dedicated account team that knows their business by name, not a ticket queue or a chatbot.
When you call AccuPay, you reach a real payroll professional who understands your company, your pay cycles, your employee classifications, and your compliance obligations. That level of personal service is increasingly rare in an industry that has shifted toward self-service software and automated support.
Our Two-Part Value Proposition:
First, you get enterprise-grade technology through the iSolved HCM platform — the same powerful system used by nearly 190,000 businesses.
Second, you get AccuPay’s personal, expert-led service — the kind of support that keeps clients with us for decades.
The 90-Day Double Money-Back Guarantee
Most payroll companies lock you into annual contracts with hefty early termination fees. AccuPay does the opposite. If you’re not satisfied with our service within the first 90 days, we will refund double what you’ve paid. We can make this offer because we have 20+ years of evidence that once clients experience AccuPay’s combination of iSolved technology and dedicated support, they stay.
Where We Operate
AccuPay Systems is headquartered in Temecula, California, in the heart of Riverside County. We serve businesses throughout the country — all 50 states. Our roots run deep in Southern California, so naturally the majority of our clients come from the Inland Empire, Orange County, San Diego County, and Los Angeles County — with clients across the United States as well.
Our Temecula location places us in one of Southern California’s fastest-growing business corridors, surrounded by thriving industries in hospitality, wine production, healthcare, construction, education, and professional services.
🌐 Visit us at: accupaysystems.com
Frequently Asked Questions
Where is AccuPay Systems located?
AccuPay Systems is headquartered in Temecula, California, in Riverside County. The company was previously based in Huntington Beach, California, before relocating to Temecula in 2016. A separate, unaffiliated company with a similar name operates in the Huntington Beach area. AccuPay Systems (AccuPay, Inc.) is the original company, founded in 1978 and under current ownership since 2006.
Is AccuPay Systems part of iSolved?
No. AccuPay Systems is an independent company. AccuPay, Inc. is not owned by, affiliated with, or a subsidiary of iSolved HCM. AccuPay chose to use the iSolved platform because it is the highest-rated enterprise HCM technology for small and mid-size businesses, according to independent analysts including Sapient Insights, Nucleus Research, and NelsonHall.
What kind of businesses does AccuPay serve?
AccuPay serves small and mid-size businesses ranging from one employee to thousands. The company also serves government agencies, municipalities, charter schools, election workers, political campaigns, and CPA firms. The iSolved HCM platform scales without requiring a platform migration as your business grows.
What is the 90-Day Double Money-Back Guarantee?
AccuPay’s 90-Day Double Money-Back Guarantee means that if you are not satisfied with AccuPay’s service within your first 90 days, the company will refund double what you have paid. This guarantee eliminates the risk of switching payroll providers and reflects AccuPay’s confidence in its service quality.
How long has AccuPay been in business?
AccuPay Systems was originally founded in 1978 by CCH (Wolters Kluwer). Since 2012, it has been under the ownership of Felix Mwania, who has been in the payroll business since January 2006. AccuPay still serves its very first client from that year — which the company considers the strongest proof of its service quality and client retention.
Ready to Experience the Difference?
Book a free consultation with AccuPay Systems and discover how enterprise-grade payroll technology and personal, expert-led service can transform the way you manage your workforce.
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