Justworks vs OnPay
A detailed comparison of Justworks and OnPay. See how they stack up on features, pricing, and user ratings.
At a Glance
| Justworks | OnPay | |
|---|---|---|
| Rating | 4.6/5 | 4.8/5 |
| Starting Price | $59/mo | $40/mo |
| Free Trial | No | Yes |
| Free Plan | No | No |
| Features | 9 | 7 |
| Best For | SMB | SMB |
Key Differences
Justworks and OnPay share 7 features. Justworks has 2+ unique features.
Only in Justworks
- Slack Integration
- Zapier Integration
Justworks
PEO and payroll platform for small businesses offering HR, benefits, compliance, and payroll through a professional employer organisation model.
OnPay
Straightforward cloud payroll solution for small businesses with full-service payroll, automatic tax filing, HR tools, and benefits administration at a simple flat-rate monthly price.
Feature Comparison
| Feature | Justworks | OnPay |
|---|---|---|
| Workflow Automation | ||
| Reporting Dashboard | ||
| EEO/OFCCP Compliance | ||
| GDPR Compliance | ||
| API Access | ||
| HRIS Integration | ||
| Slack Integration | ||
| Zapier Integration | ||
| Mobile App |
Pricing Comparison
Justworks
OnPay
Integrations
Both tools integrate with
Only Justworks
Pros & Cons
Justworks
Pros
- +Access to enterprise-grade benefits (medical, dental, vision) at group rates
- +Simple, transparent pricing with no hidden fees
- +Handles compliance, tax filings, and workers comp automatically
- +24/7 customer support with dedicated HR consultants
Cons
- -Per-employee pricing gets expensive for larger teams
- -Only available for US-based employees
- -PEO model means Justworks is the co-employer (some companies dislike this)
- -Less customisable than DIY HR software
OnPay
Pros
- +Simple, transparent pricing ($40 base + $6/person)
- +Full-service payroll with tax filing
- +HR tools and benefits admin included
- +Excellent for small businesses under 50 employees
Cons
- -No time tracking built in
- -US-only payroll
- -Limited to smaller companies
- -Fewer integrations than Gusto or Rippling
Which Should You Choose?
Choose Justworks if:
- • Your company is SMB size
- • You need a more feature-rich solution (9 vs 7 features)
- • Access to enterprise-grade benefits (medical, dental, vision) at group rates
Choose OnPay if:
- • Your company is SMB size
- • You want to try before committing (free trial available)
- • Higher user ratings matter to you (4.8 vs 4.6)
- • Budget is a priority (starts from $40/mo vs $59/mo)
- • Simple, transparent pricing ($40 base + $6/person)
How we evaluate tools
Our ratings combine verified user reviews from G2 and Capterra with hands-on feature analysis. Pricing is checked against official sources. We may earn a commission through affiliate links, but this never influences our rankings or recommendations. Read our full methodology.