ADP TotalSource vs Paychex PEO: Side-by-Side Comparison
| ADP TotalSource | Paychex PEO | |
|---|---|---|
| Provider type | PEO source (opens in new window) | PEO source (opens in new window) |
| Minimum worksite employees | 5 employees (serves small to midsized businesses from 5 to 1,000+ employees) source (opens in new window) | Not verified |
| States registered | All 50 U.S. states (benefits coverage and payroll, tax, and HR compliance support nationwide) source (opens in new window) | TX: all 11 Paychex PEO entities hold REGULAR PEO licenses per the TDLR license dataset (expirations Sep 2026-Jul 2027); FL checked on the FLDOE registry (capture on file). Other states in progress. source (opens in new window) |
| IRS-certified PEO | True source (opens in new window) | True source (opens in new window) |
| ESAC accredited | True source (opens in new window) | True source (opens in new window) |
| Published pricing model | Custom quote (contact ADP TotalSource for a quote) source (opens in new window) | Not published; varies by company size, industry, services, and employee count (request a quote) source (opens in new window) |
| Standard contract term | Initial term from the Effective Date; renews automatically on the anniversary date for successive one-year terms; either party may terminate on 30 days' written notice or immediately for Cause source (opens in new window) | Initial term plus automatic renewal terms, set in the Signature Packet or Service Agreement Initiation Request; service ends on the last day of payroll responsibility, not the invoice or last-paycheck date source (opens in new window) |
| Notice required to exit | 30 days' written notice, or immediately for cause (form Client Services Agreement) source (opens in new window) | Written notice per the Signature Packet waives the transition fee; Paychex may terminate on 30 days' notice source (opens in new window) |
Verdict by buyer
We publish a verdict only when both provider records clear the data gate. A comparison written from marketing copy is worth less than no comparison.
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