Justworks vs OnPay
A head-to-head comparison to help you pick the right tool
Last updated: September 14, 2026
Justworks is our recommended pick for most teams — small businesses wanting fortune 500 benefits.
Try Justworks →Read our full Justworks review →Justworks
Justworks is a Professional Employer Organization (PEO) that gives small businesses access to Fortune 500-level benefits and simplified payroll. By co-employing your team, Justworks handles compliance, payroll taxes, and benefits administration. It is ideal for small businesses that want premium benefits without an in-house HR team.
OnPay
OnPay is a full-service payroll and HR platform designed for small and mid-size businesses. It offers unlimited payroll runs, automatic tax filing, and built-in HR tools at an affordable flat rate. OnPay is consistently rated as one of the best value payroll solutions for small businesses and supports a wide range of industries including restaurants, farms, and nonprofits.
Pros
- ✓Access to high-quality health, dental, and vision benefits typically reserved for large companies
- ✓Simple flat-rate pricing with no hidden fees
- ✓Excellent customer support with fast response times
- ✓Handles all compliance and payroll tax filings
Cons
- ✗More expensive than software-only alternatives due to PEO model
- ✗Only available for US-based employees
- ✗Less flexible than standalone HR software for customization
Pros
- ✓Excellent value — flat monthly pricing with no per-run fees
- ✓Supports multiple pay schedules and unlimited payroll runs
- ✓Strong industry-specific features for restaurants, farms, and nonprofits
- ✓US-based customer support included on all plans
Cons
- ✗US-only — no international payroll support
- ✗Mobile app is less polished than competitors
- ✗Limited advanced HR features compared to full HRIS platforms
Justworks vs OnPay: Side by Side
| Factor | Justworks | OnPay |
|---|---|---|
| User Rating | 4.6/5 ★ | N/A |
| Category | HR Software | Payroll Software |
| Pricing Model | Paid | Paid |
| Starting Price | $59/employee/mo | $40/mo + $6/person |
| Best For | Small businesses wanting Fortune 500 benefits | Small businesses wanting affordable, full-service payroll with no hidden fees |
| Our Pick | 🏆 Recommended | — |
Justworks Features
- ✓PEO co-employment
- ✓payroll
- ✓benefits access
- ✓compliance
- ✓HR support
OnPay Features
- ✓Unlimited payroll runs
- ✓automatic tax filing
- ✓direct deposit
- ✓employee self-service
- ✓HR tools
- ✓benefits administration
- ✓PTO management
- ✓integrations
Pricing Comparison
Justworks
PaidStarts at $59/employee/mo
Justworks: $59/employee/mo · Plus: $99/employee/mo
See full pricing →Best Use Cases
Justworks
- →US startups and small businesses wanting full PEO services
- →Companies wanting to offer Fortune 500 benefits to small teams
- →Businesses wanting to outsource HR compliance
Who Should NOT Use These Tools
Justworks is NOT ideal for:
- ✗Companies with international employees
- ✗Businesses wanting full control over HR processes
- ✗Large enterprises with dedicated HR teams
Integrations
Justworks
QuickBooks, Xero, Slack, Google Workspace, Microsoft 365, Greenhouse
Our Take
Choose Justworks if small businesses wanting fortune 500 benefits. Choose OnPay if small businesses wanting affordable, full-service payroll with no hidden fees.
Best For
Small businesses wanting Fortune 500 benefits
Best For
Small businesses wanting affordable, full-service payroll with no hidden fees
Also Consider
If neither Justworks nor OnPay is the right fit, Breezy HR is worth evaluating.
Breezy HR
Small businesses and startups needing simple recruiting
From $9/user/mo
Frequently Asked Questions
What is the difference between Justworks and OnPay?
Justworks is best for small businesses wanting fortune 500 benefits. OnPay is best for small businesses wanting affordable, full-service payroll with no hidden fees.
Which is better, Justworks or OnPay?
Choose Justworks if small businesses wanting fortune 500 benefits. Choose OnPay if small businesses wanting affordable, full-service payroll with no hidden fees.
How much does Justworks cost?
Justworks starts at $59/employee/mo. Pricing model: Paid.
How much does OnPay cost?
OnPay starts at $40/mo + $6/person. Pricing model: Paid.
Who should use Justworks?
Small businesses wanting Fortune 500 benefits
Who should use OnPay?
Small businesses wanting affordable, full-service payroll with no hidden fees