Payroll · head to head
Justworks vs Paychex
Justworks
Payroll
Professional employer organisation with published per-employee pricing and a separate payroll-only tier
- From
- $8/month
- Rated
- -
Paychex
Accounting
Outsourced United States payroll, tax filing, benefits and HR services with an assigned service representative
- From
- $29/month
- Rated
- -
The short version
- Each has a real cost: Justworks the published per-employee fee is the platform charge, not your cost; health insurance premiums and workers' compensation are billed on top and are usually several times larger, so the transparent price is transparent about the smaller number.; Paychex pricing is quoted rather than published and varies between clients and between renewals, with separate charges for each payroll run, off cycle payments and year end processing, so two similar businesses regularly pay very different amounts for the same service and comparing quotes is difficult by design.
- They diverge on capability: Justworks covers Co-employment PEO, Paychex covers Payroll processing.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Justworks and Paychex actually diverge.
Identical on both: free tier (No), platforms (Web, iOS, Android), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Justworks
- Co-employment PEO
- Large-group benefits
- Payroll and filings
- Workers' compensation
- Compliance support
- Standalone payroll
- International contractors
- HR consulting
Only in Paychex
- Payroll processing
- Payroll tax filing
- Year end forms
- Multi state payroll
- Garnishments
- Time and attendance
- Benefits administration
- Retirement plans
What people use each for
The jobs each tool is most often brought in to do.
Justworks
- A twenty-person US startup that wants health insurance comparable to a large employer without an insurance broker relationshipnot Paychex
- A company hiring across several US states that does not want to register as an employer and file taxes in each of themnot Paychex
- A founder replacing a bookkeeper-run payroll with something that will not produce a state tax penalty noticenot Paychex
- A team that wants payroll and benefits administration only, without co-employment, at the $8 per employee tiernot Paychex
Paychex
- A United States business with employees in several states that does not want to track differing withholding and unemployment rules internallynot Justworks
- A small employer whose accountant recommends outsourcing payroll tax filing so the penalty risk sits with a service providernot Justworks
- A growing company that wants payroll, benefits enrolment and a retirement plan administered together rather than through three vendorsnot Justworks
- A small employer seeking benefits pricing through a professional employer organisation that it could not negotiate on its own headcountnot Justworks
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Justworks
- The published per-employee fee is the platform charge, not your cost; health insurance premiums and workers' compensation are billed on top and are usually several times larger, so the transparent price is transparent about the smaller number.
- Leaving a PEO is a project, not a cancellation: you must source your own health plan, obtain your own state employer registrations and unemployment accounts, and time the switch to a plan year, which typically takes months.
- Coverage is United States only, so the moment you hire your first employee in another country you are running a second system and Justworks handles them only as a contractor.
- PEO Basic looks like a cheaper way in but excludes the Justworks health plans, which is the main reason companies choose a PEO at all, so most buyers end up on Plus.
- Benefit plan choice is constrained to what Justworks has negotiated, and a company with strong preferences about carriers or network coverage in a specific region may find the options do not fit.
Paychex
- Pricing is quoted rather than published and varies between clients and between renewals, with separate charges for each payroll run, off cycle payments and year end processing, so two similar businesses regularly pay very different amounts for the same service and comparing quotes is difficult by design.
- Charging per payroll run rather than per month penalises employers who pay weekly or who run frequent off cycles, so a business with hourly staff on a weekly cycle pays several times what a monthly salaried business of the same size pays.
- Migrating mid year requires transferring year to date wage and tax figures for every employee in every jurisdiction, so in practice companies switch only at a calendar year end, which leaves you locked to the incumbent for the rest of the year whatever the service is like.
- The service model depends on an assigned representative, and reported experience varies sharply with who that person is and how often the assignment changes, which means the quality of what you bought is not a property of the product you evaluated.
- It is a United States service, so a company with employees abroad still needs a separate payroll provider in each country, and the group has no single view of employment cost without building one outside the system.
Pricing, plan by plan
Justworks
$8/month- Payroll$8/month
- Plus a $50 monthly base fee
- Payroll, tax filing and benefits administration
- No co-employment, so no access to Justworks health plans at PEO rates
- PEO Basic$79/month
- Full co-employment PEO
- Payroll, tax filing and compliance
- Does not include access to Justworks-sponsored health plans
- PEO Plus$109/month
- Everything in Basic
- Access to Justworks health, dental and vision plans
- Premiums are billed separately and are the larger cost
- Dedicated HR consulting$30/month
- Add-on to PEO plans
- Named HR adviser support
Paychex
$29/month- Flex Essentials$39/month
- Payroll
- Tax administration
- Direct deposit
- Flex Select$59/month
- HR administration
- State unemployment insurance
- New hire reporting
Which should you pick?
Choose Justworks if
- You need co-employment peo.
- You work on Web, iOS, Android.
- You also want large-group benefits.
Choose Paychex if
- You need payroll processing.
- You work on Web, Ios, Android.
- You also want payroll tax filing.
Questions people ask
- Is Justworks or Paychex better?
- Neither clearly leads. Justworks starts at $8/month and Paychex at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Justworks or Paychex?
- Justworks starts at $8/month and Paychex at $29/month.
- Does Justworks or Paychex run on more platforms?
- Justworks runs on Web, iOS, Android. Paychex runs on Web, Ios, Android.
- What is Justworks best used for?
- Justworks is most often used for a twenty-person us startup that wants health insurance comparable to a large employer without an insurance broker relationship, a company hiring across several us states that does not want to register as an employer and file taxes in each of them, a founder replacing a bookkeeper-run payroll with something that will not produce a state tax penalty notice, a team that wants payroll and benefits administration only, without co-employment, at the $8 per employee tier. Of those, a twenty-person us startup that wants health insurance comparable to a large employer without an insurance broker relationship and a company hiring across several us states that does not want to register as an employer and file taxes in each of them are not what Paychex is typically brought in for.
- What can Justworks do that Paychex cannot?
- Justworks covers Co-employment PEO, Large-group benefits, Payroll and filings, Workers' compensation. Paychex covers Payroll processing, Payroll tax filing, Year end forms, Multi state payroll.
Answered from the vendors’ own pages
Justworks: What does co-employment actually mean?
Justworks becomes the employer of record for payroll tax and benefits purposes while you retain full control over hiring, management and day-to-day work. It is a legal arrangement, not an outsourcing of your team.
Paychex: How much does it cost?
Paychex quotes per client rather than publishing rates, and the structure typically includes a base fee plus a per employee per payroll charge with extras for year end and off cycle runs. Get the full fee schedule in writing, including what a mid year change of plan costs.
Justworks: Is the $79 figure my total monthly cost per employee?
No. It is the platform fee. Health insurance premiums, dental, vision and workers' compensation are additional and typically dwarf it.
Paychex: Who is liable if payroll taxes are filed late or wrongly?
Contractually the provider generally accepts responsibility for errors it makes, but the employer remains the party the tax authorities pursue. Read the specific indemnity language rather than relying on the sales description.
Justworks: Can Justworks employ people outside the US?
No. It can pay international contractors, but it is not an employer of record abroad.
Paychex: Can I switch providers mid year?
Technically yes, but you must carry year to date figures across for every employee and jurisdiction, and errors there surface at year end on employee tax forms. Most businesses switch effective 1 January for that reason.
Justworks: What is the difference between the Payroll plan and the PEO?
The Payroll plan handles payroll and benefits administration under your own EIN at $8 per employee per month plus a base fee. The PEO adds co-employment and pooled large-group insurance at $79 or $109.
Paychex: What is the difference between the standard service and the professional employer organisation option?
Under the professional employer organisation arrangement Paychex becomes a co-employer for tax and benefits purposes, which changes your benefits access and some of your employment administration. It costs more and it is harder to unwind, so treat it as a different decision from buying payroll.
Paychex: Does it work with my accounting software?
It exports a general ledger file and connects to the mainstream accounting products. Confirm the mapping to your chart of accounts during onboarding, because a generic export means your bookkeeper recodes every run.
Paychex: Is it suitable if we only have a few employees?
It will serve you, but very small employers often find the per run charges and the service tiering expensive relative to self service payroll products. The case improves once multi state complexity or benefits administration enters the picture.
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