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ADP and Paychex
The same fields for both, from each vendor's own pages and the SEC, read on the dates shown. This table does not say which to choose: that depends on your requirements, and the guide's checklist is how to test them.
Published 29 October 2026; vendor pages read 29 October 2026.
| Field | ADP | Paychex |
|---|---|---|
| Described as (our words) | Payroll, HR, tax and benefits services for businesses from one employee to large enterprises. Products include RUN, Workforce Now and global payroll. | Payroll, HR, benefits and compliance services for businesses of all sizes. Its integrations page lists accounting and time tools. |
| In its own words | Experience better HR and payroll(adp.com, read 29 October 2026) | Paychex has HR and Payroll solutions to fit the needs of any size business.(paychex.com, read 29 October 2026) |
| Lists on its site | RUN Powered by ADP®; ADP TotalSource®; ADP Workforce Now®; ADP® Global Payroll; Payroll Taxes (adp.com) | No module list taken from the pages we read. |
| Pricing | Not published on the pages we read, 29 October 2026. Ask for a quote. | Not published on the pages we read, 29 October 2026. Ask for a quote. |
| Integrations it names | No integrations taken from the pages we read. | Intuit Quickbooks; Sage Intacct; Xero; Oracle Netsuite; When I Work; 7shifts (paychex.com integrations) |
| Public company | SEC registrant: AUTOMATIC DATA PROCESSING INC, ticker ADP (EDGAR filings, CIK 8670). | SEC registrant: PAYCHEX INC, ticker PAYX (EDGAR filings, CIK 723531). |
| Guides it appears in | Payroll | Payroll |
Ask both of them
From the Payroll guide. Put the same questions to each vendor and compare the answers against your checklist.
- Which returns and deposits will you make in our name, in which jurisdictions, and how do we see confirmation of each?
- If you make an error that causes a penalty, what does the contract say you pay?
- Show a pay change, its approval and the audit log.
- Show the journal entry for one payroll in our chart of accounts.
- How do we confirm tax deposits independently, and how do your reports line up with EFTPS?
- What does an off-cycle payroll cost, and how fast can you run one?
Sources
- ADP. adp.com/, read 29 October 2026.
- SEC EDGAR. sec.gov/
cgi-bin/ browse-edgar?action=getcompany&CIK=0000008670&type=10-K, read 29 October 2026. - Paychex. paychex.com/, read 29 October 2026.
- Paychex. paychex.com/
integrations, read 29 October 2026. - SEC EDGAR. sec.gov/
cgi-bin/ browse-edgar?action=getcompany&CIK=0000723531&type=10-K, read 29 October 2026.