OnPay vs UKG Pro

A detailed comparison of OnPay and UKG Pro. See how they stack up on features, pricing, and user ratings.

At a Glance

OnPay UKG Pro
Rating 4.8/5 4.2/5
Starting Price $40/mo N/A
Free Trial Yes No
Free Plan No No
Features 7 9
Best For SMB Enterprise

Key Differences

OnPay and UKG Pro share 7 features. UKG Pro has 2+ unique features.

Only in UKG Pro

  • Slack Integration
  • Zapier Integration

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.

Rating 4.8/5
Best for SMB
Free trial Yes
Free plan No
Start Free Trial →

UKG Pro

Enterprise HCM suite from UKG covering HR, payroll, talent, workforce management, and people analytics for large US-based organisations.

Rating 4.2/5
Best for Enterprise
Free trial No
Free plan No
Visit UKG Pro →

Feature Comparison

Feature OnPay UKG Pro
Workflow Automation
Reporting Dashboard
EEO/OFCCP Compliance
GDPR Compliance
API Access
HRIS Integration
Mobile App
Slack Integration
Zapier Integration

Pricing Comparison

OnPay

Standard $40/mo

UKG Pro

Custom Custom

Integrations

Both tools integrate with

Outlook QuickBooks Zapier

Only OnPay

Gmail Google Workspace Xero

Only UKG Pro

ADP Azure AD DocuSign LinkedIn Microsoft 365 Microsoft Teams Okta Outlook Calendar Slack

Pros & Cons

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

UKG Pro

Pros

  • +Exceptional US payroll processing with deep tax engine
  • +Industry-leading workforce management (inherited from Kronos)
  • +Strong employee experience focus with Great Place to Work integration
  • +Comprehensive benefits administration for US organisations

Cons

  • -Primarily US-focused — limited global payroll capabilities
  • -Custom pricing with no published rates
  • -Two product lines (UKG Pro and UKG Ready) can create confusion
  • -User interface varies between modules due to merger heritage

Which Should You Choose?

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 4.2)
  • • Simple, transparent pricing ($40 base + $6/person)
Try OnPay Free

Choose UKG Pro if:

  • • Your company is Enterprise size
  • • You need a more feature-rich solution (9 vs 7 features)
  • • Exceptional US payroll processing with deep tax engine
Visit UKG Pro

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.