OnPay vs Justworks vs Patriot Payroll vs Paychex Flex Comparison
OnPay
Starting at $40 /Month
- Free Trial
- Freelancers / Consultants
- Large Enterprises
OnPay is an intuitive online payroll software designed to meet the needs of supervisors, managers, payroll specialists and people who manage pay for hourly or salaried staff. OnPay helps companies of all sizes reduce cos…
Justworks
Starting at $8 /user/month
- Free Trial
- Small Business
- Medium Business
Justworks is payroll software that offers international payroll, payroll tax filing and realtime benefits administration. The Justworks app is a simple way for teams to bill their hours directly from their iPhone or Andr…
Patriot Payroll
Starting at $14 /Month
- Free Trial
- Large Enterprises
- Medium Business
The Patriot's secure payroll solution is designed to lower the total cost of payroll administration, while helping you reduce your staffs' workload. With its fully integrated interface with Patriot's fund accounting and…
Paychex Flex
Starting at Contact for pricing
- Freelancers / Consultants
- Large Enterprises
Paychex Flex is a cloud-based payroll software for mid- to large-sized employers, delivering the tools you need to run your business and support your people. This payroll system provides everything you need in just one s…
OnPay leads on user satisfaction with a 4.8-star rating across 822 reviews.
SpotSaaS Analysis
OnPayJustworksPatriot Payroll
The core difference between OnPay and Justworks lies in their target audience and feature set; OnPay is tailored for small businesses with straightforward payroll needs, while Justworks offers a more integrated solution for small to mid-sized businesses that require payroll along with benefits management. Ideal buyers for OnPay are small business owners with up to 100 employees, whereas Justworks is suited for businesses ranging from 5 to 500 employees, particularly those in need of a comprehensive payroll and benefits platform.
- Best for small businesses with 1-100 employees - Focuses on simple, automated payroll processing - Excellent customer support - Ideal for industries like healthcare and nonprofits - Automates payroll calculations and tax filings - Priced at $40
- Designed for small to mid-sized businesses (5-500 employees) - Integrates payroll with benefits management - Low setup complexity for quick implementation - Suitable for startups and non-profits - Provides a streamlined payroll experience - Priced at $8
OnPay vs Justworks vs Patriot Payroll vs Paychex Flex — at a glance
| Feature | OnPay | Justworks | Patriot Payroll | Paychex Flex |
|---|---|---|---|---|
| Rating | 4.8 / 5 | 4.5 / 5 | 4.7 / 5 | 3.7 / 5 |
| Reviews | 822 | 238 | 3,876 | 3,034 |
| Starting price | $40 /Month | $8 /user/month | $14 /Month | Contact for pricing |
| Free trial | Yes | Yes | Yes | No |
| Free version | No | No | No | No |
| Best for | Freelancers / Consultants, Large Enterprises, Medium Business | Small Business, Medium Business, Large Enterprises | Large Enterprises, Medium Business, Small Business | Freelancers / Consultants, Large Enterprises, Medium Business |
| Category | Payroll Software | Payroll Software | Payroll Software | Payroll Software |
| Integrations | 10+ apps | — | 11+ apps | — |
| Platforms | SaaS/Web/Cloud | SaaS/Web/Cloud | SaaS/Web/Cloud | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS |
| API | — | — | Available | — |
| Support modes | Business Hours, Online | 24/7 (Live rep), Business Hours, Online | Business Hours, Online | 24/7 (Live rep) |
| Certifications | SOC 2, GDPR | SOC 2, GDPR | — | SOC 2, GDPR |
| Data residency | US | US | US | US |
Key differences between OnPay and Justworks
- Pricing: OnPay starts at $40 /Month, while Justworks starts at $8 /user/month.
- Target audience: OnPay is built for Freelancers / Consultants and Large Enterprises, while Justworks targets Small Business and Medium Business.
- User satisfaction: OnPay scores higher with a 4.8-star average.
- Deployment: OnPay supports SaaS/Web/Cloud; Justworks supports SaaS/Web/Cloud.
Compare OnPay vs Justworks vs Patriot Payroll vs Paychex Flex — and walk away knowing which one fits.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Payroll Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
Biggest differences
Start here before you go deeper into features.
Best for small businesses seeking simple, automated payroll with excellent support.
- You run a small business with 1-100 employees needing straightforward payroll processing.
- You want to automate payroll calculations and tax filings to reduce errors and save time.
- You value exceptional, responsive customer service and easy integration with accounting tools.
- You are a large enterprise requiring complex payroll customizations and advanced features.
- You need an all-in-one HR platform including recruitment or performance management.
Best for small to mid-sized businesses needing integrated payroll and benefits.
- You want a simple, streamlined payroll and benefits platform with low setup complexity.
- Your company size ranges from 5 to 500 employees, especially startups or non-profits.
- You need real-time benefits administration combined with transparent employee pay views.
- Your enterprise requires highly customized or complex payroll workflows.
- You need advanced global payroll capabilities beyond Justworks’ supported countries.
Best payroll software for small businesses needing simple, affordable solutions.
- You run a small to medium business with up to 100 employees.
- You want a user-friendly, streamlined payroll system with strong US-based support.
- You need integration with fund accounting and compliance tools for payroll automation.
- You require advanced, highly customizable payroll features for complex business needs.
- You are a large enterprise scaling beyond small to medium business capabilities.
Best for mid-sized businesses needing integrated payroll and HR compliance.
- You manage a company with 51-1000 employees requiring streamlined payroll and tax filing.
- You want a cloud-based platform with employee self-service for paystubs and tax forms.
- You value integrated payroll and HR management with strong customer support.
- You are a freelancer or very small business needing transparent, upfront pricing.
- You require highly customizable payroll workflows to fit unique business processes.
OnPay: Best for small businesses seeking simple, automated payroll with excellent support. Justworks: Best for small to mid-sized businesses needing integrated payroll and benefits.
Description | OnPay is an intuitive online payroll software designed to meet the needs of supervisors, managers, payroll specialists and people who manage pay for hourly or salaried staff. OnPay helps ... Read More about OnPay | Justworks is payroll software that offers international payroll, payroll tax filing and realtime benefits administration. The Justworks app is a simple way for teams to bill their hours ... Read More about Justworks | The Patriot's secure payroll solution is designed to lower the total cost of payroll administration, while helping you reduce your staffs' workload. With its fully integrated interface with ... Read More about Patriot Payroll | Paychex Flex is a cloud-based payroll software for mid- to large-sized employers, delivering the tools you need to run your business and support your people. This payroll system provides ... Read More about Paychex Flex |
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Spotsaas ScoreWhat's this? ↗ | 9.4/10 | 9.2/10 | 8.8/10 | 9.2/10 |
User RatingsBased on verified Spotsaas reviews | ||||
Best Company Size | 1-100 employeesSmall Business | 5-50 employees51-500 employees | 1-100 employeesSmall to medium businesses | 51-500 employees501-1000 employees |
Get pricing help | Get pricing help |
Where each option fits best
See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.
Based on buyer reviews and verified product data collected by Spotsaas.
Key strengths
- OnPay streamlines payroll processing, saving valuable hours each week by automating complex calculations and filings—so you can focus on running your business.
- With a user-friendly interface and intuitive dashboards, your team can effortlessly manage payroll, benefits, and taxes without needing extensive training.
- I appreciate how OnPay offers robust integration with popular accounting tools, enhancing efficiency and eliminating manual data entry headaches.
- Comprehensive Payroll & Benefits: Justworks combines payroll processing with benefits management, making it easier to administer health insurance, 401(k), and compliance in one platform.
- Compliance & Risk Mitigation: The platform stays current with tax filings and labor laws, helping companies avoid costly penalties and manage risk confidently.
- User-Friendly HR Tools: Justworks offers intuitive employee onboarding, time tracking, and document management, streamlining HR tasks and improving workforce management.
- Flexible Payroll Options: Choose between basic and full-service payroll, depending on whether you want to handle tax filing yourself or let Patriot do it.
- Easy-to-Use Interface: Designed with small business owners in mind, the platform simplifies payroll processing with intuitive navigation and clear workflows.
- Affordable Pricing & U.S. Support: Offers competitive rates with no hidden fees and access to expert, U.S.-based customer support when needed.
- Streamlined HR Management: With Paychex Flex, managers can effortlessly handle payroll, benefits, and compliance all in one platform. This not only saves time but also reduces the risk of errors—ensuring you can focus on strategic initiatives.
- Employee Empowerment: Employees appreciate the self-service capabilities that allow them to access pay stubs, manage benefits, and request time off at their convenience. This not only boosts engagement but also fosters a culture of responsibility and ownership.
- Scalable Solutions: Whether you’re a small business or a large enterprise, Paychex Flex grows with you. Its flexible architecture allows you to tailor features that fit your company’s unique needs, ensuring you’re always equipped for what lies ahead.
Best fit
- 1-100 employees
- Healthcare, SaaS, Consulting, Professional Services, Nonprofits, Financial Services, Marketing Agencies
- HR Managers, Payroll Administrators, Office Managers, Finance Managers, Small Business Owners
- 5–500 employees
- Technology, professional services, startups, non-profits, healthcare, and small to medium enterprises
- HR Managers, Payroll Specialists, Business Owners, Finance Directors, and Operations Managers
- 1–100 employees
- Retail, construction, professional services, healthcare, nonprofit, and manufacturing
- Small Business Owners, Accountants, Payroll Managers, Office Managers, and HR Coordinators
- 1 to 1,000 employees
- HR Services, Professional Services, Retail, Healthcare, and Nonprofit Organizations
- HR Managers, Payroll Administrators, Business Owners, and Operations Managers
Reasons buyers look elsewhere
- Users may explore alternatives if they require more advanced HR management features, such as extensive employee onboarding, robust benefit administration, or detailed performance tracking.
- Companies seeking greater scalability might prefer alternatives that easily accommodate rapid growth, complex payroll structures, or increased employee counts without compromising system performance.
- Businesses operating internationally or with global teams might consider alternatives offering broader international payroll support and compliance tools for multiple regions and currencies.
- Businesses seeking a combined payroll, benefits, and compliance platform with simplified user experience.
- Companies needing streamlined HR tools alongside payroll to manage employee lifecycle efficiently.
- Organizations looking for a cloud-based solution with strong compliance support for tax and labor laws.
- Small businesses looking for simple payroll solutions with affordable, transparent pricing and U.S.-based support.
- Companies needing basic or full-service payroll options with the flexibility to manage taxes internally or outsource.
- Businesses prioritizing user-friendly software without the complexity of enterprise-level platforms.
- Users may seek alternatives to Paychex Flex due to its pricing structure, as smaller businesses or startups often find the costs prohibitive compared to other payroll solutions that offer similar services at lower rates.
- Some businesses might require more customizable features than Paychex Flex provides, leading them to explore platforms that allow for tailored payroll configurations to better meet their unique operational needs.
- Integration capabilities with existing accounting or HR systems can be a concern; users may prefer alternatives that offer seamless connectivity to their preferred software tools for streamlined operations and data management.
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How do OnPay, Justworks, Patriot Payroll and Paychex Flex Compare on Features?
Total Features | 13 Features | 13 Features | 10 Features | 29 Features |
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Unique Features | No unique features | No unique features | No unique features | No unique features |
Get Quote | Get Quote |
Compare OnPay, Justworks, Patriot Payroll and Paychex Flex on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Other Details
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | ✓ Yes | ✓ Yes |
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HIPAA | ✗ No | ✗ No |
GDPR | ✓ Yes | ✓ Yes |
Single Sign-On (SSO) | ✓ Yes | ✓ Yes |
Multi-Factor Auth (MFA) | ✓ Yes | ✓ Yes |
Data Encryption | ✓ Yes | ✓ Yes |
Audit Logs | ✓ Yes | ✓ Yes |
Data Residency | 🇺🇸 US | 🇺🇸 US |
OnPay vs Justworks vs Patriot Payroll User Reviews & Rating Comparison
User Ratings | ||||
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Rating Distribution | ||||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyers overwhelmingly praise OnPay for its ease of use, automation capabilities, and excellent customer support, especially among small businesses and nonprofits. What buyers like
Common complaints
| Buyer sentiment Buyers generally express high satisfaction with Justworks for its ease of use, comprehensive features, and cost savings, especially among small to medium businesses. What buyers like
Common complaints
| Buyer sentiment Overall, users praise Patriot Payroll for its ease of use, affordability, and strong customer support, with minor setup challenges noted. What buyers like
Common complaints
| Buyer sentiment Overall positive sentiment highlights ease of use and comprehensive features, tempered by concerns about pricing transparency and some feature inflexibility. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product | No reviews available for the product | No reviews available for the product |
Integrations
Integration with other apps | No Integration information available. | No Integration information available. |
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List of Customers
Customers |  BlueBird  Cartecay  Evergreen |  Qubit | No Customers information available. |  Wells Fargo  First Citizens Bank  Huntington National Bank |
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Media and Screenshots
Screenshots |  7 Screenshots | No screenshots available. |
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Videos |  3 Videos |  2 Videos |
Alternatives
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, OnPay or Justworks?
- OnPay edges out the other on user ratings (4.8 vs 4.5). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do OnPay and Justworks offer a free trial?
- Yes, both OnPay and Justworks offer a free trial.
- What is the starting price of OnPay vs Justworks?
- OnPay starts at $40 /Month. Justworks starts at $8 /user/month.
- What are the top alternatives to OnPay?
- Top alternatives to OnPay include Patriot Payroll, Paychex Flex, Paycor, SurePayroll, Square Payroll.
- What are the top alternatives to Justworks?
- Top alternatives to Justworks include Patriot Payroll, Paychex Flex, Paycor, Freshbooks, Rippling.