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PayAdvisors vs ADP and Paychex: A Payroll Platform or a Payroll Team
ADP and Paychex sell payroll platforms that your team uses to run payroll, with tax filing included. PayAdvisors is a team of payroll professionals that runs your payroll for you, in the system you already use, including your own ADP account.
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At a glance
ADP and Paychex: platform plus tax filing, priced by quote
PayAdvisors: a payroll team that does the work, month to month
Already on ADP? You can keep it and hand us the payroll
Facts checked October 27, 2026
In short
Which one fits you?
Choose ADP or Paychex if you have someone in-house who will enter and approve payroll each pay period and you want one large provider for payroll, HR tools, benefits and time tracking.
Choose PayAdvisors if nobody on your team should be running payroll, your payroll person just left, or your ADP or Paychex setup keeps producing errors, and you want a payroll team to take the work off your plate.
Side by side
PayAdvisors, ADP and Paychex compared
Features as each company lists them on its own website, checked October 27, 2026.
| PayAdvisors | ADP (RUN, 1 to 49 employees) | Paychex | |
|---|---|---|---|
| What it is | A payroll team that runs your payroll | A payroll platform with tax filing | A payroll and HR platform with tax filing |
| Who enters and submits each payroll | Our team, and you approve every run | You or your staff, by computer, mobile app or phone | You or your staff, online or mobile, with the option of a dedicated payroll specialist |
| Payroll tax filing | Federal, state and local filings and agency notices handled by our team | ADP calculates, files, deposits and reconciles your payroll taxes, and responds to agency inquiries about them | Paychex Taxpay calculates, files and pays your payroll taxes |
| Which system | The one you already use, including ADP Workforce Now and RUN | ADP | Paychex Flex |
| Packages | One managed service, scoped to your payroll | Essential, Enhanced, Complete Payroll and HR Plus, HR Pro Payroll and HR | Basic, Foundations, Advanced, Complete |
| Price | Ask us on a short call | Quote only ("Get pricing") | Quote only (contact sales) |
| Term | Month to month, no minimum term | No contract; cancel any time (RUN, per ADP) | Ask Paychex |
| Setup | Weeks 1 to 2 onboarding, weeks 3 to 4 takeover and first live payroll | Ask ADP | Paychex says as few as 48 hours after signing up |
| Larger and full-service options | Same team as you grow | ADP Comprehensive Services (managed HR and payroll) and Comprehensive Outsourcing Services for large employers | HR PEO and HR Pro bundles |
The difference
The difference: who does the work each payday
With a payroll platform, the provider supplies the system and files the taxes from the numbers you enter. Someone at your company still collects hours, enters changes, handles new hires and terminations, catches mistakes and answers employee paycheck questions.
With PayAdvisors, that work moves to a team of 25+ payroll and HR professionals:
- Each payroll processed start to finish, and checked twice before it goes out
- New hires, terminations, deductions and garnishments
- Off-cycle runs and corrections
- Federal, state and local tax filings and agency notices
- W-2s and 1099s at year end
- Employee paycheck questions
- Backup coverage when someone is out
You stay the employer and you approve every run.
Keep your system
Already on ADP or Paychex? You may not have to switch
Many employers who search for "ADP vs Paychex" are not unhappy with the platform. They are short on the person who runs it. We can run payroll inside your existing ADP account, Workforce Now or RUN, so your employee records, history and reports stay where they are. Our leadership ran payroll at ADP.
See ADP payroll outsourcing with PayAdvisors.
On Paychex or another system? We work in any payroll system. See payroll processing.
If payday is at risk right now, start with emergency payroll support.
Best fit
Who each is best for
ADP or Paychex
Employers with in-house staff who will run payroll every pay period and want payroll, HR tools, benefits and time tracking from one large provider.
Either one, plus PayAdvisors
Employers who like their ADP account but need a payroll team to run it.
PayAdvisors
Employers who want payroll done for them by a payroll team, month to month, without hiring a payroll person.
Weighing that choice? See hire vs outsource payroll. Leaving a PEO? See PEO exit help.
Sources
Where these facts come from
ADP, RUN Powered by ADP, Workforce Now, Paychex, Paychex Flex and Taxpay are trademarks of their owners. PayAdvisors is an independent firm and is not affiliated with, sponsored by or endorsed by ADP or Paychex.
- RUN Powered by ADP payroll packages comparison: four packages for 1 to 49 employees (Essential, Enhanced, Complete Payroll and HR Plus, HR Pro Payroll and HR), each with "Get pricing"; payroll by computer, mobile app or phone call; tax filing ("We will calculate, file, deposit and reconcile your payroll taxes"); Enhanced adds ZipRecruiter, State Unemployment Insurance and garnishment payment service; FAQ: no long-term contract, and services can be terminated at any time; ADP says it responds to inquiries from taxing agencies (checked October 27, 2026)
- ADP Comprehensive Services: modular managed HR and payroll with designated professionals; ADP says it is a separate product from Comprehensive Outsourcing Services (checked October 27, 2026)
- ADP Comprehensive Outsourcing Services: ADP's large business payroll outsourcing with a designated team of specialists (checked October 27, 2026)
- Paychex compare payroll packages: Basic, Foundations, Advanced and Complete packages; "Complete payroll online from desktop or mobile with the option to work with a dedicated payroll specialist"; Taxpay tax administration; pricing through a Paychex representative; switching "in as few as 48 hours after signing up"; HR Pro and HR PEO options (checked October 27, 2026)
- PayAdvisors: Managed ADP payroll and Get started pages (checked October 27, 2026)
This is general information, not tax advice. Confirm your situation with your tax professional.
Related
Related
- ADP payroll outsourcing: keep ADP, hand us the payroll.
- Payroll tax filing and compliance: filings and agency notices, on time.
- PayAdvisors vs Gusto: a payroll app or a payroll team.
- PayAdvisors vs a PEO: co-employment or your own payroll team.
- All services
PayAdvisors vs ADP and Paychex questions
How is PayAdvisors different from ADP or Paychex?
ADP and Paychex provide payroll platforms that your team uses to enter and submit payroll, with tax filing included. PayAdvisors is a payroll team that does that work for you, in the payroll system you already use.
Can PayAdvisors run payroll in my ADP account?
Yes. We run payroll inside ADP Workforce Now and RUN. You keep your ADP account, your data and your reports, and you approve every run.
Is PayAdvisors part of ADP or Paychex?
No. PayAdvisors is an independent payroll team and is not affiliated with, sponsored by or endorsed by ADP or Paychex.
Do ADP and Paychex list their prices?
Not on the pages we checked on October 27, 2026. Both ask you to request pricing, which depends on your package and your payroll.
Is there a minimum commitment with PayAdvisors?
No. Service is month to month, with no minimum term.
How long does it take PayAdvisors to take over payroll?
Weeks 1 to 2 are onboarding and training. Weeks 3 to 4 are payroll takeover and your first live payroll with us. From week 5, we move into ongoing payroll optimization.
Next step
Keep your system. Hand us the payroll.
Book a call with our team to talk through your payroll. There is no obligation.