OnPay vs Greenhouse
A head-to-head comparison to help you pick the right tool
Last updated: April 30, 2026
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.
Greenhouse
Greenhouse is a leading applicant tracking system built for structured, data-driven hiring. It helps companies design consistent interview processes, reduce bias, and make better hiring decisions. Greenhouse is the ATS of choice for mid to large companies with high-volume or technical hiring needs.
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
Pros
- ✓Best-in-class structured hiring tools with scorecards and interview kits
- ✓Extensive integration ecosystem with 300+ HR and productivity tools
- ✓Powerful reporting and hiring analytics
- ✓Strong DEI tools to reduce bias in hiring
Cons
- ✗Expensive for small companies with limited hiring volume
- ✗Complex to set up and requires dedicated admin resources
- ✗No built-in HRIS — requires integration with a separate HR system
OnPay vs Greenhouse: Side by Side
| Factor | OnPay | Greenhouse |
|---|---|---|
| User Rating | N/A | N/A |
| Category | Payroll Software | Applicant Tracking |
| Pricing Model | Paid | Paid |
| Starting Price | $40/mo + $6/person | Custom pricing |
| Best For | Small businesses wanting affordable, full-service payroll with no hidden fees | Mid to large companies with high-volume hiring |
| Our Pick | — | — |
OnPay Features
- ✓Unlimited payroll runs
- ✓automatic tax filing
- ✓direct deposit
- ✓employee self-service
- ✓HR tools
- ✓benefits administration
- ✓PTO management
- ✓integrations
Greenhouse Features
- ✓Job postings
- ✓candidate tracking
- ✓interview scheduling
- ✓reporting
- ✓integrations
Pricing Comparison
Which Should You Choose?
Choose OnPay if...
- →Small businesses wanting affordable, full-service payroll with no hidden fees
Our Take
Choose OnPay if small businesses wanting affordable, full-service payroll with no hidden fees. Choose Greenhouse if mid to large companies with high-volume hiring.
Best For
Small businesses wanting affordable, full-service payroll with no hidden fees
Best For
Mid to large companies with high-volume hiring
Also Consider
If neither OnPay nor Greenhouse is the right fit, Multiplier is worth evaluating.
Multiplier
Startups and SMBs hiring internationally on a budget
From $40/contractor/mo
Frequently Asked Questions
What is the difference between OnPay and Greenhouse?
OnPay is best for small businesses wanting affordable, full-service payroll with no hidden fees. Greenhouse is best for mid to large companies with high-volume hiring.
Which is better, OnPay or Greenhouse?
Choose OnPay if small businesses wanting affordable, full-service payroll with no hidden fees. Choose Greenhouse if mid to large companies with high-volume hiring.
How much does OnPay cost?
OnPay starts at $40/mo + $6/person. Pricing model: Paid.
How much does Greenhouse cost?
Greenhouse starts at Custom pricing. Pricing model: Paid.
Who should use OnPay?
Small businesses wanting affordable, full-service payroll with no hidden fees
Who should use Greenhouse?
Mid to large companies with high-volume hiring