ADP RUN vs Paychex Flex: prices and state program coverage
Prices read November 9, 2026Help docs read November 7, 2026Listed alphabetically, not ranked
Short answer
Neither ADP RUN nor Paychex Flex publishes a price. Both quote by request, according to their product pages as read November 9, 2026.
Of the 33 state paid leave and retirement programs The Mandate Monitor tracks, we’ve read help documentation covering 13 for ADP RUN and 14 for Paychex Flex. A program missing from either list may still be supported.
What do ADP RUN and Paychex Flex cost?
| Plan | List price a month | 10 people | ||
|---|---|---|---|---|
| ADP RUNSold as Essential Payroll, Enhanced Payroll, Complete Payroll & HR+ and HR Pro Payroll & HR. | Not published. ADP RUN quotes by request. | |||
| Paychex FlexSold as Basic, Foundations, Advanced and Complete. | Not published. Paychex Flex quotes by request. | |||
List prices from ADP RUN’s product page (read Nov 9, 2026) and Paychex Flex’s product page (read Nov 9, 2026), before discounts and add-ons. The team-size figures are our arithmetic: the base fee plus the per-person fee for that many people.
Plans for each
The free route for state programs
You don’t need a payroll company to meet a state program’s rules. Each paid leave and retirement program page shows how to register and report directly with the state, which charges nothing to register.
ADP RUN
RUN Powered by ADP is ADP’s online payroll and HR service for small businesses.
No published price; ADP RUN quotes by request.
Paychex Flex
Paychex Flex is Paychex’s online payroll and HR platform, sold in packages priced on request.
No published price; Paychex Flex quotes by request.
Listed alphabetically. We may earn a commission from these links; it never decides who’s listed or the order. How we make money.
Which state programs does each one cover?
We’ve read help documentation covering no state paid leave programs and 13 state retirement programs for ADP RUN, and no state paid leave programs and 14 state retirement programs for Paychex Flex. Of the 14 in the table, 13 are documented for both, none for ADP RUN only and 1 for Paychex Flex only.
| State program | Type | ADP RUN | Paychex Flex |
|---|---|---|---|
| CalSavers CaliforniaRetirement mandate | Retirement mandate | None found yet | Help docread Nov 7, 2026 |
| Colorado SecureSavings ColoradoRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| MyCTSavings ConnecticutRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| Delaware EARNS DelawareRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| My Illinois Savings IllinoisRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| MERIT MaineRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| MarylandSaves MarylandRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| Minnesota Secure Choice MinnesotaRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| Nevada Employee Savings Trust (NEST) NevadaRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| RetireReady NJ New JerseyRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| New York Secure Choice New YorkRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| OregonSaves OregonRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| Vermont Saves VermontRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
| RetirePath Virginia VirginiaRetirement mandate | Retirement mandate | Help docread Nov 7, 2026 | Help docread Nov 7, 2026 |
A help doc is the company’s own article, or the state program’s help page naming the company. “None found yet” means we haven’t read one. It doesn’t mean the system can’t handle the program. 19 of the 33 programs we track aren’t in this table because we’ve found no help doc for either system.
Do they file payroll taxes, and in more than one state?
Filing payroll taxes
- ADP RUN
- ADP’s RUN product page says RUN calculates payroll taxes automatically and can file federal, state and local payroll taxes for you with proper authorization. Their page, Nov 9, 2026
- Paychex Flex
- Paychex’s small business payroll page says it calculates, withholds and files federal, state and local payroll taxes. Their page, Nov 9, 2026
More than one state
- ADP RUN
- The page we read doesn’t say.
- Paychex Flex
- The page we read doesn’t say.
Filing new hire reports
- ADP RUN
- An ADP article dated July 5, 2023 says new hire reporting is included in many RUN packages, and names Essential, Enhanced, Complete and HR Pro. Their page, Nov 10, 2026
- Paychex Flex
- We haven’t found a page of theirs that says.
Questions employers ask
What do ADP RUN and Paychex Flex cost for 10 employees?
Neither company publishes a price. ADP RUN and Paychex Flex both quote by request, so the cost for 10 employees depends on the quote each one gives you (product pages read November 9, 2026).
Which state paid leave programs do ADP RUN and Paychex Flex handle?
We haven’t found help documentation for a state paid leave program for ADP RUN or Paychex Flex yet, which doesn’t mean either can’t handle one.
Do ADP RUN and Paychex Flex work with state retirement programs?
For ADP RUN we’ve read help documentation covering state retirement programs in Colorado, Connecticut, Delaware, Illinois, Maine, Maryland, Minnesota, Nevada, New Jersey, New York, Oregon, Vermont and Virginia. For Paychex Flex we’ve read help documentation covering state retirement programs in California, Colorado, Connecticut, Delaware, Illinois, Maine, Maryland, Minnesota, Nevada, New Jersey, New York, Oregon, Vermont and Virginia.
Do ADP RUN and Paychex Flex file payroll taxes for you?
ADP’s RUN product page says RUN calculates payroll taxes automatically and can file federal, state and local payroll taxes for you with proper authorization. Paychex’s small business payroll page says it calculates, withholds and files federal, state and local payroll taxes.
Do ADP RUN and Paychex Flex file new hire reports with the state?
An ADP article dated July 5, 2023 says new hire reporting is included in many RUN packages, and names Essential, Enhanced, Complete and HR Pro. We haven’t found a Paychex Flex page that says whether it files new hire reports.
Every payroll system side by side · Which system documents which state program
Sources
- ADP RUN product page (read Nov 9, 2026)
- Paychex Flex product page (read Nov 9, 2026)
- The help document for each state program is linked in the table above. The full lists are on the ADP RUN and Paychex Flex pages.