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  5. OnPay-vs-Paychex Flex

Compare OnPay and Paychex Flex
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See this
side-by-side comparison of OnPay vs. Paychex Flex
based on preference data from user reviews. OnPay rates 4.9/5 stars with 144 reviews. By contrast, Paychex Flex rates 4.3/5 stars with 1,222 reviews. Each product's score is calculated with real-time data from verified user reviews, to help you make the best choice between these two options, and decide which one is best for your business needs.
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OnPay
OnPay
(144)
4.9 out of 5
OnPay
Optimized for quick response
Answer a few questions to help the OnPay community
Have you used OnPay before?
Yes
Paychex Flex
Paychex Flex
(1,222)
4.3 out of 5
Paychex Flex
Optimized for quick response
Answer a few questions to help the Paychex Flex community
Have you used Paychex Flex before?
Yes
Star Rating
OnPay
OnPay
144 reviews
Paychex Flex
Paychex Flex
1,222 reviews
Market Segments
OnPay
OnPay
Small-Business (97.1% of reviews)
Paychex Flex
Paychex Flex
Small-Business (75.8% of reviews)
Entry Level Price
OnPay
OnPay
$36 base fee + $4 per person per month
Paychex Flex
Paychex Flex
Contact Vendor for Pricing

OnPay vs Paychex Flex

When assessing the two solutions, reviewers found OnPay easier to use, set up, and administer. Reviewers also preferred doing business with OnPay overall.

  • Reviewers felt that OnPay meets the needs of their business better than Paychex Flex.
  • When comparing quality of ongoing product support, reviewers felt that OnPay is the preferred option.
  • For feature updates and roadmaps, our reviewers preferred the direction of OnPay over Paychex Flex.
Categories
Shared Categories
OnPay
OnPay
Paychex Flex
Paychex Flex
OnPay and Paychex Flex are categorized as Benefits Administration and Payroll
Unique Categories
OnPay
OnPay has no unique categories
Paychex Flex
Pricing
OnPay
OnPay Pricing
Simple, Transparent Pricing
$36 base fee + $4 per personper month
Free Trial
Paychex Flex
Paychex Flex Pricing
Contact Vendor
Contact Vendor for Pricing
Free Trial Unavailable
Ask a Question

Have questions for OnPay and Paychex Flex?

Start a private conversation.
Ratings
Meets Requirements
OnPay
OnPay
9.8
Responses: 116
Paychex Flex
Paychex Flex
8.9
Responses: 1046
Ease of Use
OnPay
OnPay
9.6
Responses: 116
Paychex Flex
Paychex Flex
8.6
Responses: 1057
Ease of Setup
OnPay
OnPay
9.4
Responses: 73
Paychex Flex
Paychex Flex
8.4
Responses: 735
Ease of Admin
OnPay
OnPay
9.6
Responses: 73
Paychex Flex
Paychex Flex
8.7
Responses: 761
Quality of Support
OnPay
OnPay
9.7
Responses: 118
Paychex Flex
Paychex Flex
8.6
Responses: 1006
Ease of Doing Business With
OnPay
OnPay
9.9
Responses: 75
Paychex Flex
Paychex Flex
8.8
Responses: 758
Product Direction (% positive)
OnPay
OnPay
9.5
Responses: 110
Paychex Flex
Paychex Flex
7.8
Responses: 1046
Features
Employee Self Service
Web Portal
OnPay
OnPay
9.3
Responses: 86
Verified Feature
Paychex Flex
Paychex Flex
8.7
Responses: 696
Verified Feature
Benefits Manager
OnPay
OnPay
8.9
Responses: 31
Verified Feature
Paychex Flex
Paychex Flex
8.3
Responses: 428
Verified Feature
Mobile
OnPay
OnPay
8.5
Responses: 41
Verified Feature
Paychex Flex
Paychex Flex
8.5
Responses: 393
Verified Feature
Administration
Payroll Entry
OnPay
OnPay
9.5
Responses: 93
Verified Feature
Paychex Flex
Paychex Flex
8.8
Responses: 687
Verified Feature
Time Off Accrual
OnPay
OnPay
8.7
Responses: 49
Verified Feature
Paychex Flex
Paychex Flex
8.2
Responses: 425
Verified Feature
Direct Deposit
OnPay
OnPay
9.5
Responses: 80
Verified Feature
Paychex Flex
Paychex Flex
9.5
Responses: 758
Verified Feature
Expense Reimbursement
OnPay
OnPay
8.5
Responses: 36
Verified Feature
Paychex Flex
Paychex Flex
9.0
Responses: 297
Verified Feature
Pre-tax Deductions
OnPay
OnPay
9.3
Responses: 60
Verified Feature
Paychex Flex
Paychex Flex
9.1
Responses: 625
Verified Feature
Wage Garnishment
OnPay
OnPay
8.1
Responses: 25
Verified Feature
Paychex Flex
Paychex Flex
9.0
Responses: 441
Verified Feature
Approvals
OnPay
OnPay
9.2
Responses: 46
Verified Feature
Paychex Flex
Paychex Flex
8.8
Responses: 342
Verified Feature
Check/W-2 Printing
OnPay
OnPay
9.5
Responses: 64
Verified Feature
Paychex Flex
Paychex Flex
9.3
Responses: 632
Verified Feature
Check/W-2 Delivery
OnPay
OnPay
9.4
Responses: 54
Verified Feature
Paychex Flex
Paychex Flex
9.3
Responses: 672
Verified Feature
Taxes
Tax Calculation
OnPay
OnPay
9.7
Responses: 92
Verified Feature
Paychex Flex
Paychex Flex
9.2
Responses: 715
Verified Feature
Tax Filing
OnPay
OnPay
9.6
Responses: 89
Verified Feature
Paychex Flex
Paychex Flex
9.2
Responses: 677
Verified Feature
Automatic Tax Payment
OnPay
OnPay
9.7
Responses: 89
Verified Feature
Paychex Flex
Paychex Flex
9.2
Responses: 673
Verified Feature
Integration
API / Integration
OnPay
OnPay
8.7
Responses: 24
Verified Feature
Paychex Flex
Paychex Flex
8.1
Responses: 171
Verified Feature
Time Tracking Integration
OnPay
OnPay
8.2
Responses: 17
Verified Feature
Paychex Flex
Paychex Flex
8.1
Responses: 207
Verified Feature
Accounting Integration
OnPay
OnPay
8.7
Responses: 31
Verified Feature
Paychex Flex
Paychex Flex
7.9
Responses: 207
Verified Feature
Core HR Integration
OnPay
OnPay
8.0
Responses: 17
Verified Feature
Paychex Flex
Paychex Flex
8.0
Responses: 172
Verified Feature
Platform
Customization
OnPay
OnPay
9.4
Responses: 24
Paychex Flex
Paychex Flex
7.7
Responses: 203
Integration APIs
OnPay
OnPay
9.5
Responses: 17
Paychex Flex
Paychex Flex
8.1
Responses: 92
Internationalization
OnPay
OnPay
Feature Not Available
Paychex Flex
Paychex Flex
Feature Not Available
User, Role, and Access Management
OnPay
OnPay
9.6
Responses: 24
Paychex Flex
Paychex Flex
8.4
Responses: 278
Performance
OnPay
OnPay
9.8
Responses: 33
Paychex Flex
Paychex Flex
8.7
Responses: 285
Mobility
OnPay
OnPay
9.8
Responses: 23
Paychex Flex
Paychex Flex
8.3
Responses: 185
Reporting
OnPay
OnPay
9.7
Responses: 33
Paychex Flex
Paychex Flex
8.6
Responses: 279
Dashboards
OnPay
OnPay
9.8
Responses: 35
Paychex Flex
Paychex Flex
8.7
Responses: 293
Platform
Reporting and Dashboards
OnPay
OnPay
9.4
Responses: 91
Verified Feature
Paychex Flex
Paychex Flex
8.7
Responses: 706
Verified Feature
User, Role, and Access Management
OnPay
OnPay
9.5
Responses: 78
Verified Feature
Paychex Flex
Paychex Flex
8.7
Responses: 685
Verified Feature
Performance and Reliability
OnPay
OnPay
9.8
Responses: 91
Verified Feature
Paychex Flex
Paychex Flex
8.9
Responses: 714
Verified Feature
Scalability
OnPay
OnPay
9.6
Responses: 78
Verified Feature
Paychex Flex
Paychex Flex
8.8
Responses: 589
Verified Feature
Benefits Administration Platform Features
Benefits Record Management
OnPay
OnPay
9.8
Responses: 9
Paychex Flex
Paychex Flex
8.5
Responses: 178
Enrollment Planning
OnPay
OnPay
9.8
Responses: 7
Paychex Flex
Paychex Flex
8.1
Responses: 146
Third-Party Carrier Integration
OnPay
OnPay
Not enough data available
Paychex Flex
Paychex Flex
7.4
Responses: 77
Document Management
OnPay
OnPay
9.5
Responses: 7
Paychex Flex
Paychex Flex
8.6
Responses: 128
Total Compensation Statements
OnPay
OnPay
9.7
Responses: 12
Paychex Flex
Paychex Flex
8.8
Responses: 142
Self-Service Portal
OnPay
OnPay
9.4
Responses: 12
Paychex Flex
Paychex Flex
8.5
Responses: 168
Regulatory Compliance
OnPay
OnPay
9.4
Responses: 9
Paychex Flex
Paychex Flex
8.8
Responses: 158
Benefits Dashboards
OnPay
OnPay
9.2
Responses: 8
Paychex Flex
Paychex Flex
8.6
Responses: 171
Mobile Benefits Access
OnPay
OnPay
9.0
Responses: 7
Paychex Flex
Paychex Flex
8.3
Responses: 106
Integrations / APIs
OnPay
OnPay
8.6
Responses: 7
Paychex Flex
Paychex Flex
8.0
Responses: 70
Reviewers' Company Size
Reviewers of both OnPay and Paychex Flex were most often representing companies in the Small-Business segment.
Small-Business
(50 or fewer emp.)
OnPay
OnPay
97.1%
Paychex Flex
Paychex Flex
75.8%
Mid-Market
(51-1000 emp.)
OnPay
OnPay
2.9%
Paychex Flex
Paychex Flex
22.1%
Enterprise
(> 1000 emp.)
OnPay
OnPay
0%
Paychex Flex
Paychex Flex
2.1%
Reviewers' Industry
OnPay
OnPay Industry
Health, Wellness and Fitness
6.5%
Construction
6.5%
Retail
3.6%
Non-Profit Organization Management
3.6%
Medical Practice
3.6%
Other
76.3%
Paychex Flex
Paychex Flex Industry
Non-Profit Organization Management
7.1%
Construction
6.9%
Medical Practice
4.4%
Real Estate
3.8%
Hospital & Health Care
3.7%
Other
74.1%
Reviews
Most Helpful Favorable Review
OnPay
GP
Administrator in Primary/Secondary Education

OnPay makes payroll incredibly easy! It’s exactly what I need. Quick, simple, and amazing customer support.

Paychex Flex
GB
Executive Sponsor in Business Supplies and Equipment

Paychex has an easy to understand and update HR sight. It was used extensively to post policies andbenefit renewal information. The Performance Review creation options are very customizable...for both Employee and Manager input. The time off request...

Most Helpful Critical Review
OnPay
GA
User in Retail

The interface is a little clunky, startup was confusing as they kept sending "ready to run payroll" messages even though they did not have the account complete. However today a client made a simple mistake and sent her payroll through twice. She emailed...

Paychex Flex
GN
Administrator in Non-Profit Organization Management

Paychex Preview cannot handle cross period reporting so if you have a fiscal calendar you are in for a world of hurt. Paychex has an integrated system and their component systems, Preview, HR Online and Time & Labor Online do not talk to each other...

Top Alternatives
OnPay
OnPay Alternatives
Gusto Payroll
Gusto Payroll
Rippling
Rippling
Patriot Payroll
Patriot Payroll
SurePayroll
SurePayroll
Paychex Flex
Paychex Flex Alternatives
Paylocity
Paylocity
Ceridian Dayforce
Ceridian Dayforce
UKG Pro (formerly Ultimate Software UltiPro)
UKG Pro (formerly Ultimate Software UltiPro)
Workday HCM
Workday HCM
Discussions
OnPay
OnPay Discussions
Monty the Mongoose crying
OnPay has no discussions with answers
See all discussions
Paychex Flex
Paychex Flex Discussions
We have reduced employees, yet still pay the same bi-monthly fee. Shouldn't it be lower?
7 comments
KL
I believe the service fee is through a range employee count not individually.Read more
Paycheck Stubs
3 comments
MW
15 minutes does not seem like an inordinate amount of time for a payroll to be processed, especially if you are submitting it on a day when a multitude of...Read more
How do i setup managers correctly
2 comments
LC
There are tutorials in the portal as well as you were assigned a dedicated specialist to assist you with any issue.Read more
See all discussions
Screenshots
OnPay
OnPay Screenshots
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Paychex Flex
Paychex Flex Screenshots
1 of 4
2 of 4
3 of 4
4 of 4
Videos
OnPay
OnPay Videos
Video Preview

See everything OnPay does to make payroll and benefits easy for small businesses.

Paychex Flex
Paychex Flex Videos
Video Preview
Downloads
OnPay
OnPay Downloads
Download
OnPay Features, Reviews and Pricing

Paychex Flex
Paychex Flex Downloads
Download
Whitepaper

Ask OnPay a QuestionContact OnPayAsk Paychex Flex a QuestionContact Paychex Flex
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OnPay
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Paychex Flex
Paychex Flex
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