Aspen HR empowers your business to grow with confidence through certified, white-glove PEO solutions built to simplify payroll, protect your company from tax liability, and elevate your employee experience.
Certified to Serve You Better
In 2017, the IRS introduced a game-changing designation: Certified Professional Employer Organization (CPEO). It was designed to offer small and mid-sized businesses the security, compliance, and service quality they deserve when outsourcing HR and payroll.
Aspen HR is proud to be among a select group of IRS-Certified PEOs. As a CPEO, we assume full responsibility for federal payroll tax filings so you can focus on growing your business, not worrying about tax deadlines.
Why Certification Matters to Your Business
There’s a difference between a service provider and a true partner. Aspen HR delivers more than outsourced HR, we deliver peace of mind backed by certified compliance.
Federal Tax Assurance
We file and remit your federal employment taxes and assume legal responsibility for them.
Shielded from Liability
Unlike non-certified PEOs, CPEOs bear the burden of tax compliance, reducing your exposure to costly errors.
Streamlined Payroll Processing
Simplify your payroll. Stay compliant. Save time.
Simplified Workers Comp
We offer integrated workers compensation support so your team stays protected.
Preserve Access to Tax Credits
A CPEO helps maintain eligibility for tax credits like the Work Opportunity Tax Credit (WOTC).
CPEO vs. Non-Certified PEOs
Not all PEOs can deliver the same level of protection, reliability, and compliance. Here’s how a Certified PEO like Aspen HR compares:

Built for Small Business. Backed by Big Expertise.
Aspen HR was founded to raise the bar in PEO client service.
Today, we serve the world’s leading alternative investment funds, FinTech firms, professional services companies, and a growing portfolio of clients in healthcare, biotech, technology, manufacturing, life sciences, remote work, labor-intensive sectors, and VC- and PE-backed startups with the kind of attention and PEO expertise they can’t get anywhere else.
What we deliver:
All with the support of a certified, responsive team that’s built around your goals—not just your to-do list.
Inside the Certification Process
Becoming a CPEO is no small task.
To become IRS-certified, Aspen HR completed a multi-stage review that included:
- Submitting audited financial statements
- Maintaining positive working capital
- Passing IRS background and compliance checks
- Posting surety bond coverage
- Submitting to ongoing IRS compliance reviews
Why Aspen HR?
Our clients don’t choose Aspen HR just because we’re certified.
They stay because we back that certification with service that’s proactive, personal, and performance-driven.
- 97% Client Retention
- 9.8/10 Satisfaction Score
- 75% Faster Response Time than SLA benchmarks
We work with startups, growth-stage companies, and private equity-backed firms across the U.S. to help them scale faster with fewer distractions and greater confidence.
FAQ
What is the difference between a PEO and a certified PEO?
A Certified PEO is IRS-approved and assumes legal liability for federal employment tax filings. A non-certified PEO does not.
What does CPEO stand for?
Certified Professional Employer Organization
What is the difference between HR and a CPEO?
HR is typically your internal team managing people ops. A CPEO is an outsourced provider that takes on legal and operational responsibility for HR, payroll, and federal tax compliance.