Square Payroll vs Paychex Flex

Square Payroll7.7/10

Paychex Flex7.2/10

Scored in Payroll Software

The short answer

Square Payroll costs $35 a month plus $6 per person and imports time cards and tips from Square POS. Paychex Flex publishes Flex Essentials at $39 a month plus $5 per employee for businesses with fewer than 20 employees and quotes its Basic to Complete packages.

By LeadChange Research TeamUpdated Nov 7, 2026Based on 14 sources, most recently checked Nov 14, 2026

Square Payroll

Starting price: $35/mo + $6/employee/mo1
Best for: Square POS sellers that import time cards, tips and commissions into payroll

Choose Square Payroll if

Your time cards and tips are in Square POS.
You pay staff in several states on the base plan.
You close for the off-season: inactive months are free.
Your security review asks for SOC 2 Type II and ISO 27001.

Square Payroll plans and prices Square Payroll alternatives

Paychex Flex

Starting price: $39/mo + $5/employee/mo (up to 19 employees)2
Best for: Businesses with fewer than 20 employees that want a listed price

Choose Paychex Flex if

You want payroll support at any hour.
You expect to add HR: handbooks, applicant tracking and learning come in higher packages.
You want employees to check paychecks before payroll runs.
You want the option to delay the payroll debit up to 7 days (Paychex Promise).

Paychex Flex pricing Paychex Flex alternatives

LeadChange Score: editorial assessment based on public information.

Scorecard

Square Payroll wins 1Paychex Flex wins 31 tie

Square Payroll vs Paychex Flex by dimension
Dimension	Square Payroll	Paychex Flex
PricingSquare lists $35 a month plus $6 per person; Paychex Flex Essentials lists $39 plus $5 for businesses under 20 employees, with W-2s and 1099s at extra cost. For 10 employees that is $95 with Square and $89 with Paychex before year-end forms.	$35/mo + $6/employee/mo	$39/mo + $5/employee/mo (up to 19 employees)
CapabilitiesBoth run unlimited payrolls with tax filing and pay contractors. Paychex Flex adds HR, benefits and workers' comp modules and higher packages with applicant tracking and learning management; Square adds tip import and free Square Shifts scheduling. Run payroll in as little as 30 seconds, Unlimited payroll processing, Automated payroll tax calculation, filing and payment (Taxpay), Multi-state payroll tax compliance, Paychex Pre-check employee paycheck review, Intelligent payroll automation that flags missing hours and data errors before payroll, 1099 contractor reporting and payments, Paychex Flex mobile app3	7 of 12 core capabilities	12 of 12 core capabilities
IntegrationsPaychex Flex connects to QuickBooks, Sage Intacct, Xero, NetSuite, 7shifts and When I Work, with a REST API and webhooks. Square Payroll connects to Square POS, the Square Team App and QuickBooks Online. Intuit QuickBooks, Sage Intacct, Xero, Oracle NetSuite, Jirav, Connecteam, SwyftOps, When I Work, Mindbody, 7shifts, Employee Navigator, BambooHR, Clover, Instant Financial, goHappy4	7 documented	15 documented
Fit and supportPaychex Flex serves small and mid-size businesses with 24/7 payroll support. Square serves small businesses, with payroll specialists on weekdays from 6 a.m. to 6 p.m. PT. Small businesses, mid-market companies5	Small businesses	Small businesses, mid-market companies
SecuritySquare Payroll states SOC 2 Type II and ISO 27001. Paychex Flex names no security certification on the pages we reviewed. Yes6	SOC 2, ISO 27001	SOC 2 (type not stated)

Key differences

Where Square Payroll and Paychex Flex differ (6)
Attribute	Square Payroll	Paychex Flex
Price transparency	Published7	Partly published8
Best for	Small businesses7	Small businesses, mid-market companies5
Mobile apps	Square Team App1	Paychex Flex app (iOS), Paychex Flex app (Android), Paychex Flex Time Kiosk app9
Support channels	Phone, chat1	Phone, chat, email, in-platform help center3
Founded	200910	197111
Headquarters	Oakland, California, US12	Rochester, New York and Cincinnati, Ohio, US (dual headquarters)5

Show 4 attributes where they are the same

Where they are the same (4)
Attribute	Square Payroll	Paychex Flex
Pricing model	Base fee + per employee1	Base fee + per employee2
Automatic tax filing	1	3
Contractor payments	13	3
Ownership	Publicly traded10	Publicly traded5

Analysis by dimension

Pricing. Square lists $35 a month plus $6 per person; Paychex Flex Essentials lists $39 plus $5 for businesses under 20 employees, with W-2s and 1099s at extra cost. For 10 employees that is $95 with Square and $89 with Paychex before year-end forms.

Capabilities. Both run unlimited payrolls with tax filing and pay contractors. Paychex Flex adds HR, benefits and workers' comp modules and higher packages with applicant tracking and learning management; Square adds tip import and free Square Shifts scheduling.

Integrations. Paychex Flex connects to QuickBooks, Sage Intacct, Xero, NetSuite, 7shifts and When I Work, with a REST API and webhooks. Square Payroll connects to Square POS, the Square Team App and QuickBooks Online.

Fit and support. Paychex Flex serves small and mid-size businesses with 24/7 payroll support. Square serves small businesses, with payroll specialists on weekdays from 6 a.m. to 6 p.m. PT.

Security. Square Payroll states SOC 2 Type II and ISO 27001. Paychex Flex names no security certification on the pages we reviewed.

Neither one?

Patriot Payroll

Patriot Payroll has the highest LeadChange Score in Payroll Software after excluding these two (8.7/10).

From $37/mo + $5/employee/mo (Full Service Payroll plan)14

Patriot Payroll review

More Square Payroll comparisons

More Paychex Flex comparisons

Frequently asked questions

Is Square Payroll cheaper than Paychex?

At 10 employees, Paychex Flex Essentials lists less: $89 a month against Square’s $95. Paychex then bills W-2s and 1099s and may add tax administration fees, while Square only charges $3 per paper form mailed if you opt in. From 20 employees, Paychex prices by quote.

Does Square Payroll or Paychex Flex offer health insurance?

Square offers health insurance through SimplyInsured, where the employer pays at least half the premiums; it is not offered in HI, MN, ND, SD, VT or DC. Paychex Flex sells group health insurance and 401(k) plans as add-ons, and every package includes Paychex Perks, an employee perks marketplace.

When can I reach Square Payroll and Paychex support?

Paychex offers 24/7 payroll support by phone, chat and email. Square’s payroll specialists take calls and chats Monday to Friday, 6 a.m. to 6 p.m. PT.

What is Paychex Promise?

Paychex Promise lets you delay the payroll debit by up to 7 days; it is free for the first 3 months and then costs $99 a year. Square Payroll offers employees early pay to a debit card for 1.75% of net pay, free with Cash App.

Can Square Payroll and Paychex Flex pay contractors?

Yes. Square’s contractor-only plan costs $6 per contractor a month, with no base fee, and pays by direct deposit, check or Cash App. Paychex Flex handles 1099 contractor reporting and payments in its payroll.

How quickly can I start with Square Payroll or Paychex Flex?

Paychex’s online setup is self-guided, and a first payroll can run as soon as the same day. Square Payroll charges no setup fee and bills monthly with no long-term contract.

Is Square Payroll or Paychex Flex more secure?

Square Payroll states SOC 2 Type II and ISO 27001 (unverified for Paychex Flex).

How this page was made

What it is built from
35 verified facts, each checked against the vendor's own pages or another primary source, most recently on Nov 14, 2026.
Method
Scored and compared with the LeadChange methodology, version 1.5. Read the methodology
Independent review
Not reviewed yet by our independent reviewer. How we review
Hands-on testing
We have not tested either product hands-on: this page uses public information only.
Who made it
The LeadChange Research Team, following a written research process. No named expert has reviewed this page. About us
Independence and errors
Who pays us never changes a score or a rank. If something here is wrong, tell us and we correct it publicly. Request a correction

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Sources

The 14 pages this page's facts come from. The date beside each is our last check of the facts taken from it (the oldest, when they differ). The numbers beside the figures above link here.

Quotes from the sources

Square squareup.com/us/en/payroll/pricing“For full-service payroll, the cost is $35 per month, plus $6 per person paid per month.” “Manage your team and run payroll anytime, from anywhere, with the Square Team App.”
Paychex paychex.com/payroll/paychex-flex-essentials“Our most affordable option: Only $39/mo. + $5 per employee”
Paychex paychex.com/payroll“Run payroll in as little as 30 seconds with Paychex Flex®. … Allow employees to review their own paychecks in advance for accuracy using Paychex Pre-check SM . … Intelligent automation proactively flags missing hours, incorrect data, and other potential errors before they become problems.” “Have any questions? We offer flexible support options via phone, chat, or email to help you when you need it.”
Paychex paychex.com/integrations“Featured Integrations Accounting Intuit Quickbooks Sage Intacct Xero Oracle Netsuite Jirav Time & Attendance Connecteam SwyftOps When I Work Mindbody 7shifts Other Popular Apps Employee Navigator BambooHR Clover Instant Financial goHappy”
U.S. SEC (Paychex Form 10-K, fiscal 2026) sec.gov/Archives/edgar/data/723531/000119312526307785/payx-20260531.htm“Paychex Flex® is our proprietary HCM SaaS platform for small and medium-sized businesses. Paycor® is our primary SaaS-based HCM platform for larger businesses with more complex needs.” “maintains dual corporate headquarters in Rochester, New York and Cincinnati, Ohio”
Square trust.squareup.com“SOC 2 Type II” “ISO 27001:2022”
Square squareup.com/us/en/payroll/small-business“Transparent pricing with no hidden fees or long-term commitments.” “Square full-service payroll and team management solutions were designed with small businesses in mind.”
Paychex paychex.com/payroll/compare-payroll-solutions“Basic Essential Payroll & HR Request Pricing Foundations AI & HR Features Best Value Request Pricing Advanced Enhanced Service Needs Request Pricing Complete Premium Services Request Pricing”
Paychex paychex.com/apps/mobile-app“Employees can download the Paychex Flex® app for free from the Apple App Store or Google Play Store and log in using their Paychex account credentials.”
Block, Inc. investors.block.xyz/resources/investor-faqs/default.aspx“Block, Inc. was incorporated in June 2009 in Delaware.” “You’ll find our stock under the symbol XYZ on the New York Stock Exchange (NYSE)”
Paychex paychex.com/corporate“Paychex was founded in 1971 with an insight by B. Thomas Golisano.”
Square squareup.com/us/en/legal/general/privacy“your Square entity is Block, Inc., 1955 Broadway, Suite 600, Oakland, CA 94612, United States.”
Square squareup.com/us/en/payroll“Square Payroll for Contractors will generate, prepare, and file Form 1099-NEC online for you.”
Patriot Software patriotsoftware.com/pricing“Basic Payroll is $17/month + $4 per worker paid; Full Service Payroll is $37/month + $5 per worker paid.”