Gusto vs Paychex Flex

Gusto8.1/10

Paychex Flex7.2/10

Scored in Payroll Software

The short answer

Gusto prices every payroll plan on its site, from $49 a month plus $6 per person. Paychex Flex publishes one entry plan, Paychex Flex Essentials at $39 a month plus $5 per employee for businesses under 20 people, and quotes its four main packages.

By LeadChange Research TeamUpdated Nov 7, 2026Based on 22 sources, most recently checked Nov 14, 2026

Gusto

Starting price: $49/mo + $6/employee/mo1
Best for: US small businesses that want payroll tax filing on every plan

Choose Gusto if

You want every plan priced up front, from Simple to Premium.
You want benefits administration and HR tools in the same subscription.
You expect more than 20 people soon: Paychex's priced entry plan is for smaller businesses only.
You want 154 apps in an integration directory.

Gusto pricing Gusto 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 have fewer than 20 employees and want the lower list price: $39 a month plus $5 per employee on Essentials.
You want payroll support around the clock.
You need wage garnishments handled by the payroll provider.
You already use Sage Intacct, NetSuite, 7shifts or When I Work, which Paychex lists as integrations.

Paychex Flex pricing Alternatives to Paychex Flex

LeadChange Score: editorial assessment based on public information.

Scorecard

Gusto wins 0Paychex Flex wins 21 tie

Gusto vs Paychex Flex by dimension
Dimension	Gusto	Paychex Flex
PricingUnder 20 employees, Paychex Flex Essentials lists $39 a month plus $5 per employee against Gusto Simple's $49 plus $6: $89 against $109 a month at 10 employees. Essentials charges extra for tax administration and year-end forms, and Paychex's larger packages are quoted while Gusto prices all of its plans. Paychex Promise (delay the payroll debit up to 7 days): free for the first 3 months, then $99 per year, Payroll tax administration and W-2s and 1099s on Flex Essentials: "additional fees may apply" for tax administration; W-2s and 1099s at additional cost, Set-up and support upgrades (Assisted or Managed Set Up, Enhanced or Premium Customer Support) cost extra on the packages that do not include them, Add-ons available for all packages, no price published: Time & Attendance, HR Analytics, Talent Management, Business Insurance, Retirement Plans, Health Insurance, Workers’ Comp, HR Consulting3	$49/mo + $6/employee/mo	$39/mo + $5/employee/mo (up to 19 employees)
CapabilitiesBoth file payroll taxes automatically and allow unlimited pay runs. Gusto includes benefits administration and HR in its plans; Paychex handles garnishments and sells time, HR and insurance as add-ons. Payroll, Benefits, Time and attendance, Hiring and onboarding, HR, Compliance, Contractor payments, Money management4	11 of 12 core capabilities	12 of 12 core capabilities
Fit and supportPaychex states 24/7 payroll support and serves small and mid-market businesses. Gusto's phone, email and chat support runs on weekdays, with its online help center open around the clock. 24/7 payroll support5	Small businesses	Small businesses, mid-market companies

Key differences

Where Gusto and Paychex Flex differ (8)
Attribute	Gusto	Paychex Flex
Price transparency	Published1	Partly published6
Best for	Small businesses7	Small businesses, mid-market companies8
Deployment	Cloud9	Cloud, mobile8
Mobile apps	iOS (Gusto Mobile), Android (Gusto Mobile)10	Paychex Flex app (iOS), Paychex Flex app (Android), Paychex Flex Time Kiosk app11
Support channels	Phone, email, chat, online help center, dedicated account partner (Premium)12	Phone, chat, email, in-platform help center13
Founded	20127	197114
Headquarters	San Francisco, California, US15	Rochester, New York and Cincinnati, Ohio, US (dual headquarters)8
Ownership	Private7	Publicly traded8

Show 6 attributes where they are the same

Where they are the same (6)
Attribute	Gusto	Paychex Flex
Pricing model	Base fee + per employee1	Base fee + per employee2
Minimum employees	11	116
API	17	18
Webhooks	19	20
Automatic tax filing	1	13
Contractor payments	1	13

Price by headcount

Gusto Simple$49/mo base1 + $6/employee/mo1
Paychex Flex Essentials$39/mo base6 + $5/employee/mo6

Estimated list price per month by scenario
Employees	Gusto Simple	Paychex Flex Essentials
10	$109/mo	$89/mo (lowest)
50	$349/mo	$289/mo (lowest)
200	$1,249/mo	$1,039/mo (lowest)

The lowest monthly cost in each row is highlighted.

Monthly list price of each product’s entry plan with published per-employee pricing.

Analysis by dimension

Pricing. Under 20 employees, Paychex Flex Essentials lists $39 a month plus $5 per employee against Gusto Simple's $49 plus $6: $89 against $109 a month at 10 employees. Essentials charges extra for tax administration and year-end forms, and Paychex's larger packages are quoted while Gusto prices all of its plans.

Capabilities. Both file payroll taxes automatically and allow unlimited pay runs. Gusto includes benefits administration and HR in its plans; Paychex handles garnishments and sells time, HR and insurance as add-ons.

Integrations. Gusto's App Directory lists 154 apps; Paychex names its integrations, including QuickBooks, Sage Intacct, Xero and NetSuite, without a total count. Both document a REST API and webhooks.

Fit and support. Paychex states 24/7 payroll support and serves small and mid-market businesses. Gusto's phone, email and chat support runs on weekdays, with its online help center open around the clock.

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)21

Patriot Payroll review

More Gusto comparisons

More Paychex Flex comparisons

Frequently asked questions

Is Gusto cheaper than Paychex Flex?

Not for businesses under 20 people. Paychex Flex Essentials lists $39 a month plus $5 per employee, against $49 plus $6 for Gusto Simple: $89 against $109 a month at 10 employees. Paychex's other packages are quoted, and Essentials charges extra for tax administration and year-end forms.

What are the downsides of Gusto payroll?

Gusto runs payroll in the US only, new accounts start on slower direct deposits, and faster pay costs extra on the lower plans. It lists no free trial.

Who is Paychex's biggest competitor?

Among the payroll products we review, Paychex Flex shares its category with ADP RUN, Gusto and QuickBooks Payroll. Against Gusto, the difference is a lower entry price under 20 employees versus a fully priced plan line-up with benefits included.

Does Paychex Flex offer 24/7 support?

Yes. Paychex states 24/7 payroll support; the channels included depend on the package. Gusto's human support is available on weekdays.

Do Gusto and Paychex Flex have mobile apps?

Both do. Gusto has the Gusto Mobile app for iOS and Android, and Paychex lists the Paychex Flex app for iOS and Android plus a Paychex Flex Time Kiosk app for clocking in. Both include unlimited payroll runs.

Is Gusto or Paychex Flex more secure?

Gusto states HIPAA (unverified for Paychex Flex).

How this page was made

What it is built from
45 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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Gusto vs Paychex Flex

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Sources

The 22 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

Gusto gusto.com/product/pricing“Simple Run basic payroll in one state. $49/mo + $6/mo per person” “Simple, transparent pricing Payroll, benefits, and HR all in one place. No hidden fees. Cancel any time.”
Paychex paychex.com/payroll/paychex-flex-essentials“Our most affordable option: Only $39/mo. + $5 per employee”
Paychex paychex.com/paychex-promise“Paychex Promise is free for the first three months of service. After the initial 3-month period, the annual subscription is $99 per year.”
Gusto gusto.com/product“With Gusto, you can pay employees and contractors in just a few clicks. Plus, we automatically file your taxes, help with compliance, and identify tax credits to help save you money”
Paychex paychex.com/corporate/security“Payroll support is available 24/7, 365 days per year.”
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”
Gusto gusto.com/about“Our small business platform helps businesses take care of their hardworking teams.” “Launched in 2012 as ZenPayroll, Gusto serves more than 500,000 businesses nationwide.”
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.” “Paychex Flex ® is our proprietary HCM SaaS platform for small and medium-sized businesses.”
Gusto gusto.com/security“Gusto uses Amazon Web Services (AWS) to host its production servers, databases, and supporting services.” “We follow HIPAA guidelines to safeguard our customers’ protected health information (PHI). Additionally, we maintain business associate agreements (BAAs) between employers and Gusto, along with any third parties, like insurance companies.”
Gusto Payroll (Gusto)“Yes, you can run payroll, check payroll status, add and view team members and manage your team all from the Gusto mobile app. Download the iOS app here and the Google Play app here.”
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.”
Gusto gusto.com/about/contact“Our sales and support teams at Gusto are available to help you via phone, email, and chat Monday through Friday 6am – 6pm MST. For expedited support, sign in to your Gusto account.”
Paychex paychex.com/payroll“Have any questions? We offer flexible support options via phone, chat, or email to help you when you need it.” “We automatically calculate, file, and pay your payroll taxes for you.”
Paychex paychex.com/corporate“Paychex was founded in 1971 with an insight by B. Thomas Golisano.”
Gusto gusto.com/about/privacy“Gusto, Inc. Attn: Legal Privacy 525 20th Street San Francisco, CA 94107”
Paychex paychex.com/payroll/one-employee-payroll“Payroll Services for One Employee Running your business on your own is no small feat – running payroll shouldn’t make it harder.”
Gusto docs.gusto.com“Leverage Gusto's API to build your own in-app payroll solution, customized for your users' needs, with Gusto Embedded.”
Paychex paychex.com/integrations“Plus, Paychex APIs and developer resources make building applications, connections, and solution integrations easier than ever.”
Gusto docs.gusto.com/embedded-payroll/docs/webhooks“A webhook is an HTTP request that delivers information about an event as it happens.”
Paychex developer.paychex.com/getting-started/paychex-webhooks“Webhooks allow your application to receive real-time notifications whenever specific events occur in Paychex systems (such as record creation, updates, or deletions).”
Patriot Software patriotsoftware.com/pricing“Basic Payroll is $17/month + $4 per worker paid; Full Service Payroll is $37/month + $5 per worker paid.”
Gusto gusto.com/product/integrations“Showing 1–20 of 154”