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Accounting · head to head

ADP vs Paychex

ADP logo

ADP

Accounting

Always Designing for People

From
$29/month
Rated
-
Paychex logo

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: ADP no pricing is published; every quote is custom and driven by employee count and which services are taken; 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: ADP covers Payroll, Paychex covers Payroll processing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ADP and Paychex actually diverge.

Attributes where ADP and Paychex differ
AttributeADPPaychex
Founded19491971

Identical on both: starting price ($29/month), pricing model (subscription), free tier (No), platforms (Web, Ios, Android), user rating (Not yet rated), category (Accounting).

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 ADP

  • Payroll
  • Tax services
  • HR management
  • Time & attendance
  • QuickBooks
  • Sage
  • Oracle
  • SOC 1/2

Only in Paychex

  • Payroll processing
  • Payroll tax filing
  • Year end forms
  • Multi state payroll
  • Garnishments
  • Time and attendance
  • Retirement plans
  • Workers compensation

Both cover

  • Benefits administration

What people use each for

The jobs each tool is most often brought in to do.

ADP

  • Payroll processing and tax filingnot Paychex
  • HR administration and employee recordsnot Paychex
  • Time and attendance trackingnot Paychex
  • Benefits administrationnot Paychex
  • Talent management on the mid-market and enterprise productsnot Paychex

Paychex

  • A United States business with employees in several states that does not want to track differing withholding and unemployment rules internallynot ADP
  • A small employer whose accountant recommends outsourcing payroll tax filing so the penalty risk sits with a service providernot ADP
  • A growing company that wants payroll, benefits enrolment and a retirement plan administered together rather than through three vendorsnot ADP
  • A small employer seeking benefits pricing through a professional employer organisation that it could not negotiate on its own headcountnot ADP

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ADP

  • No pricing is published; every quote is custom and driven by employee count and which services are taken
  • Split into three separate products by company size, RUN for 1 to 49 employees, Workforce Now for 50 and above, and Lyric HCM for enterprise, so growing across a threshold means changing product rather than plan

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

ADP

$29/month
  • Essential$79/month
    • Payroll
    • Tax filing
    • Direct deposit
  • Enhanced$139/month
    • HR tools
    • Background checks
    • Job posting

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 ADP if

  • You need payroll.
  • You work on Web, Ios, Android.
  • You also want tax services.

Choose Paychex if

  • You need payroll processing.
  • You work on Web, Ios, Android.
  • You also want payroll tax filing.

Questions people ask

Is ADP or Paychex better?
Neither clearly leads. ADP starts at $29/month and Paychex at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ADP or Paychex?
ADP starts at $29/month and Paychex at $29/month.
Does ADP or Paychex run on more platforms?
Both run on Web, Ios, Android, so platform support will not decide this one for you.
What is ADP best used for?
ADP is most often used for payroll processing and tax filing, hr administration and employee records, time and attendance tracking, benefits administration. Of those, payroll processing and tax filing and hr administration and employee records are not what Paychex is typically brought in for.
What can ADP do that Paychex cannot?
ADP covers Payroll, Tax services, HR management, Time & attendance. Paychex covers Payroll processing, Payroll tax filing, Year end forms, Multi state payroll. Both handle Benefits administration.

Answered from the vendors’ own pages

ADP: How is ADP pricing organized?

ADP organizes pricing by business size: Small Business (1-49 employees), Midsized (50-999 employees), and Enterprise (1,000+ employees). Each segment receives customized pricing tailored to specific business needs.

Source
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.

ADP: Is there a current promotional offer for ADP payroll?

ADP currently offers 3 months free when signing up for small business payroll (promotion ends 9/24). Contact sales at 800-225-5237 for details and to request pricing based on your employee count.

Source
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.

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.

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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