Paychex vs ADP (2026): Two Quote-Only Payroll Providers Compared
ADP edges ahead on tax filing, integrations, round-the-clock support and range from 1 to 1,000+ employees. Paychex is the easier tool with in-house 401(k) and insurance. Neither publishes a price, so the real comparison is two written quotes.
Paychex or ADP: which should you choose?
Choose ADP if tax compliance, integrations, 24/7 support or a path past 250 employees matter most. Choose Paychex if you want an easier tool with in-house 401(k), insurance and a dedicated HR professional. Neither publishes a price, so get both quotes in writing and compare the full bill.
Verdict from HR Stacks editors, based on vendor pages and both full reviews.
Choose Paychex if
- You want 401(k) and insurance from one vendor
- You want a dedicated HR professional through HR Pro
- Your team is about 20 to 250 people
Choose ADP if
- You need strong tax filing and multi-state payroll
- You want a 24/7 support line on RUN
- You may grow past 250 into Workforce Now
- HR and benefits depthPaychexHR and benefits 4.4 of 5; in-house 401(k) and insurance
- Ease of usePaychexScores 4.0 of 5 vs 3.8
- Tax complianceADPTax filing 4.8 of 5 vs 4.4, in every bundle
- SupportADP24/7 line on RUN; score 3.7 vs 3.5 and no Paychex hours
- IntegrationsADPPlatform and integrations 4.2 of 5 vs 3.8
- Size rangeADPOne vendor from 1 to 1,000+; Paychex fits about 20 to 250
Paychex vs ADP at a glance
Every figure below comes from the vendor’s own pricing or product pages, or from our reviews, checked in November 2026. Where a vendor publishes nothing, the cell says so. Shaded cells mark the provider that leads on that row.
| Paychex | ADP | |
|---|---|---|
| Built around | Payroll and HR for US employers, with an HR PEO and a non-PEO HR Pro option | US payroll through RUN (1 to 49) and Workforce Now (50 to 999, and 1,000+) |
| Price | Quote only on every package; setup fee amount not published | Quote only on every bundle and package; setup fee not published |
| Co-employment | Yes, through its HR PEO package | Through a separate ADP PEO, outside our review |
| Employees abroad | Not described; Paychex presents itself as a US provider | A global payroll product exists; no country count in our review |
| Tax filing | Handled for you; Tax Center and Penalty Tracker | Federal, state and local filing plus W-2 and 1099 e-filing in every bundle |
| Benefits | Health, dental, vision and workers’ comp through its own insurance agency | Benefits and insurance are add-ons through ADP affiliates |
| Support | Phone, chat and email on all plans; hours not published | 24/7 support line on all four RUN bundles |
| Security | SOC 1 Type 2, SOC 2 Type 2 and ISO 27001 listed | SOC 1 and SOC 2 Type 2, ISO 27001 listed |
| Integrations | QuickBooks, Sage Intacct, Xero, NetSuite and others; 15 featured, no total | 16 named, including QuickBooks, Xero, Workday and SAP, plus ADP Marketplace |
| Contract terms | No standard minimum published; the free-months offer needs a one-year agreement | No fixed term; 30 days’ written notice to cancel |
| Free trial | None advertised; limited free-months offers instead | None; up to six free months for new RUN clients who start by Nov 26, 2026 |
HRS score is our editorial rating from the full Paychex review and ADP review. Each product is scored on eight parameters, and the two sets differ slightly.
The core difference: a payroll-and-HR suite or a payroll platform that scales up
Paychex sells four payroll packages named Basic, Foundations, Advanced and Complete, plus HR Pro, a non-PEO option with a dedicated HR professional, and an HR PEO that adds co-employment. Every package is a quote, so the usual route is a sales call, a setup fee and a one-year agreement if you take the free-months offer.
ADP splits by size. RUN serves 1 to 49 employees in four bundles, Essential, Enhanced, Complete and HR Pro, and Workforce Now serves 50 and above in Select, Plus and Premium. Both are quotes too. The real gap is less about features than about scale and depth: ADP covers a wider size range, while Paychex leans on in-house retirement, insurance and HR guidance.
Paychex: payroll first, PEO when you need it
ADP: payroll that scales from 1 to 1,000+
Paychex vs ADP pricing, and what you actually pay
Neither vendor publishes a rate. Paychex quotes four payroll packages, HR Pro and the HR PEO. ADP quotes four RUN bundles and three Workforce Now packages, with the per-employee rate set in the sales order.
That means no table can rank them on price. Both run limited free-months offers for new clients, which change the first-year cost but not the underlying rate. The useful move is to ask each for a written all-in quote at your headcount, then compare setup, add-ons, year-end forms and the renewal uplift.
Paychex
- Payroll packagesBasic, Foundations, Advanced and CompleteQuote only
- HR ProNon-PEO, with a dedicated HR professionalQuote only
- HR PEOCo-employment with payroll, benefits, HR guidance and riskQuote only
- Setup feeExists; the amount is set in the quoteUnpublished
- Time and attendance, 401(k)Billed outside payrollExtra
ADP
- RUN, 1 to 49 employeesEssential, Enhanced, Complete and HR ProQuote only
- Workforce Now, 50 and overSelect, Plus and PremiumQuote only
- PEOSeparate product, outside our reviewQuote only
- Setup feeOnly timeclock hardware installation is statedUnpublished
- Time tracking, benefits, insuranceAdd-onsExtra
Costs that don’t appear on either pricing page
Setup fee
Paychex: a setup fee applies and the amount is set in your quote.
ADP: not published. Only timeclock hardware installation fees are stated.
Year-end forms and add-ons
Paychex: NSF, delivery and premium processing fees can apply, and time tracking and 401(k) are billed outside payroll.
ADP: W-2 and 1099 forms carry an extra fee on Essential, with the amount unpublished. Time tracking and benefits are add-ons.
Insurance and workers’ comp
Paychex: health, dental, vision and workers’ comp through its own agency; premiums and rates are not published.
ADP: health, retirement and workers’ comp are add-ons through ADP affiliates.
Payroll taxes
Paychex: calculates, files and pays payroll taxes for you.
ADP: files federal, state and local taxes in every bundle, including W-2 and 1099 e-filing.
Feature tiers
Paychex: the package that holds each feature is not itemised in our review.
ADP: SUI management, garnishment payments and electronic I-9 start at Enhanced. HR HelpDesk and the handbook wizard start at Complete.
Plan limits
Paychex: best fit is about 20 to 250 staff; under 10 employees it is a weaker fit.
ADP: RUN runs from 1 to 49 employees, then you move to Workforce Now at 50 and over.
Contract length
Paychex: no standard minimum is published. The free-months offer needs a one-year agreement and can be recovered on early exit.
ADP: no fixed term. Either side can cancel on 30 days’ written notice.
Price changes
Paychex: no price-increase cap or notice period is published.
ADP: processing fees can rise on 30 days’ notice after a new client’s first six months.
Free trial and promotions
Paychex: no free trial; a free-months offer runs to 24 Nov 2026 and needs a one-year agreement.
ADP: no free trial. New RUN clients who start payroll by November 26, 2026 can get up to six free months, and self-onboarded Essential clients get three.
12-month cost for US employees against published references
| US employees | Paychex | ADP | Justworks Basic PEO ($79) | Gusto Simple, payroll only ($49 + $6) |
|---|---|---|---|---|
| 5 employees | Quote only | Quote only | $4,740 | $948 |
| 25 employees | Quote only | Quote only | $23,700 | $2,388 |
| 100 employees | Quote only | Quote only | $94,800 | $7,788 |
Plan fees only. Neither Paychex nor ADP publishes a figure, so those columns are blank by design. The last two columns are published prices from other vendors, shown so you have a reference point, and a Paychex or ADP quote could land above or below them. Premiums, workers’ comp, taxes and add-ons are excluded.
Run your own numbers
Neither vendor publishes a rate, so both fields start at an arbitrary $15 only so the chart works. It is not a quote or an estimate. Replace each with the rate you are offered, converted to a monthly amount per employee and including any monthly base fee.
Feature comparison
ADP leads on the platform: tax filing, integrations and always-on support. Paychex leads on the HR and benefits side, with in-house retirement and insurance. Expand a group to see the detail; “Leads” marks the stronger product on that row.
Payroll and compliance
Garnishments, W-2 and 1099 year-end, tax filing
Multi-state and multi-company payroll from Essential
Payroll accuracy 4.5 of 5
4.8 of 5; federal, state and local filing in every bundle
Benefits and HR tools
Health, dental and vision through its own agency
90,000+ 401(k) plans served in house
Labor law posters, custom handbooks, OSHA and EEO-1 reporting
HR HelpDesk and handbook wizard from Complete; electronic I-9 from Enhanced
Global employment and scale
RUN for 1 to 49; Workforce Now for 50 to 999 and 1,000+
Presents itself as a US provider
Integrations and security
16 named, plus hundreds more on ADP Marketplace
Platform and integrations 4.2 of 5
SOC 1 Type 2, SOC 2 Type 2, ISO 27001; multi-factor authentication
SOC 1 and SOC 2 Type 2, ISO 27001
Where each one works
Both run payroll and offer a PEO in the United States. Neither is a clear international choice. Paychex describes itself as a US provider and lists no international service. ADP lists a global payroll product, but our review gives no country count, so treat its coverage as unconfirmed until ADP supplies a list. The grid shows what each product can do in each place, not which one is better.
ADP does not publish a country count in our review, so confirm yours with ADP before you rely on it. The country list shown is a sample of common hiring markets, not a full list. If you hire employees abroad, check ADP’s current country list or consider an employer of record.
Implementation and support
ADP scores 3.7 of 5 for support and Paychex 3.5, so neither is strong, but ADP has the edge on availability: its RUN bundles list a 24/7 support line while Paychex publishes no hours. Setup on both is sales-led.
Paychex
- Setup
- Sales-led, with a setup fee whose amount is set in the quote. Onboarding scores 4.0 of 5.
- Support model
- Phone, chat and email on all plans. Tiers run from self-service to on-demand representatives to dedicated payroll specialists.
- Support hours
- Not published.
- Employee access
- Paychex Flex app for admins and employees: run payroll, approve time off, view pay.
ADP
- Setup
- Sales-led, with the setup fee unpublished. Ease of use scores 3.8 of 5.
- Support model
- A 24/7 support line is listed for RUN clients in all four bundles.
- Self-service
- Self-service and reporting scores 4.0 of 5.
- Employee access
- iOS and Android apps.
Which one to pick for your situation
These are the four buying situations we see most often for this pair. Company size and how much you lean on benefits decide most of them.
12-person US restaurant with hourly staff and a POS
ADP RUN lists a 24/7 support line and connects to Clover, Homebase and 7shifts. Time tracking is an add-on. Paychex says its fit is weaker under 10 and best from about 20. Get a written ADP RUN quote and check the free-months offer.
150-person company that wants in-house 401(k) and insurance
Paychex runs 401(k) in house for 90,000+ plans and sells health, dental, vision and workers’ comp through its own agency. ADP offers these as add-ons through affiliates. Ask Paychex for one quote that bundles payroll and benefits.
400-person group with several legal entities
ADP Workforce Now covers 50 to 999 employees and multi-company payroll is included from Essential on RUN. Paychex says its best fit tops out around 250. Ask Paychex how it would serve you, then compare the ADP quote.
30-person firm that wants a named HR professional
Paychex HR Pro puts a dedicated HR professional on your account without co-employment. ADP HR Pro adds a CareerPlug applicant tracker and a learning system instead. If a named HR contact matters most, Paychex fits better.
Where each one falls short
These are the limitations that matter in this specific matchup. The full pros and cons for each product live on its review page.
Paychex
- No visible priceEvery package is a quote, and the setup fee, billing unit and exit terms are not published.
- Support complaintsSupport scores 3.5 of 5, and reviewers describe holds, unexpected fees and difficulty closing accounts.
- Thin integration catalogThe page claims 15 featured integrations but shows 12, which is limiting if you use niche tools.
ADP
- No visible priceNo bundle or package has a published rate, and fees can rise on 30 days’ notice after month six.
- Features sit in tiersSUI management, garnishments and electronic I-9 start at Enhanced, and time tracking and benefits are add-ons.
- Mixed support reviewsSupport scores 3.7 of 5, and one review platform rates ADP 1.2 across 3,132 reviews.
What users say about Paychex and ADP
Our ADP review analyses 11,316 public reviews and our Paychex review analyses 4,430. Both average 3.7 out of 5, so neither has a clear lead on satisfaction. The spread between platforms is wide for both.
Paychex
Based on 4,430 public reviews, weighted average 3.7 out of 5
Praised for
- Easy new hire entry. Reviewers like the speed of adding people.
- Named reps. A dedicated contact is valued when it works.
- Filings handled for you. Taxes are filed without prompting.
Criticised for
- Support holds. Long waits are the most repeated complaint.
- Unexpected fees. Billing surprises appear often.
- Glitches and lockouts. Slowdowns, login problems and hard account closure.
Two larger review platforms rate Paychex about 4.1 to 4.2, while a third with 858 reviews rates it 1.7. We weight the larger, verified sources more and still flag the gap.
ADP
Based on 11,316 public reviews, weighted average 3.7 out of 5
Praised for
- Tax filing. Federal, state and local filing runs in every bundle.
- Scale. One vendor covers 1 to 1,000+ employees.
- Round-the-clock support. A 24/7 line is listed on RUN.
Criticised for
- Opaque pricing. No published rates, and fees can rise after month six.
- Tiered features. Useful tools sit in higher bundles or add-ons.
- Uneven support. Experience varies by rep and plan.
Two review platforms rate ADP 4.6 to 4.7, while a third with 3,132 reviews rates it 1.2. We weight the larger, verified sources more and still flag the gap.
Switching between Paychex and ADP
Moving between two payroll providers is easiest at the start of a quarter or a calendar year, so tax forms and year-to-date totals stay in one place. Ask the new provider whether it accepts year-to-date payroll history, and keep the old account open until the first payroll runs clean.
Paychex to ADP
Moderate effort- Check the Paychex agreement for the term and any recovery of free months.
- Export payroll history, tax filings and reports before access ends.
- Move 401(k) and insurance plans, since Paychex runs them through its own agency.
- Time the ADP start before November 26, 2026 if you want the RUN free-months offer.
ADP to Paychex
Moderate effort- Give ADP 30 days’ written notice and get a written Paychex quote first.
- Export payroll history and tax filings. Electronic I-9 access ends at termination, so download those records first.
- Check ADP’s data export terms, which it does not publish.
- Decide up front whether you want HR Pro or the HR PEO, because that changes the contract.
If neither fits: three alternatives
If you want a published price, a PEO with a visible entry cost, or one platform for HR and payroll, these three are the usual next looks. Our payroll software ranking compares more options. Prices below come from each vendor’s own pages or our reviews, checked in November 2026.
Gusto
US payroll, benefits and basic HR from one app, with prices on the page. Not a PEO and US employees only.
Read the Gusto review →Justworks
A certified US PEO with 24/7 phone support. Payroll alone is $50 plus $8 per employee.
Read the Justworks review →Rippling
HR, IT and payroll on one record. PEO pricing is by quote.
Read the Rippling review →Final verdict
ADP is the stronger platform on paper. Paychex is the better fit for benefits-led teams of 20 to 250.
ADP scores 4.1 against 4.0, leads on tax filing at 4.8 of 5, lists a 24/7 support line and runs from 1 to 1,000+ employees. Its limits are no published price, tiered features and fees that can rise after month six. Paychex scores 4.0, is easier to use at 4.0 of 5 and runs 401(k) and insurance in house. Its limits are the missing price, a 3.5 support score and a thin integration catalog. This is a close call, and the gap in price will not show until you hold two quotes in writing.
Go with Paychex when
- You want 401(k) and insurance in house
- You want a named HR professional
- You are about 20 to 250 people
Go with ADP when
- You need strong multi-state tax filing
- You want a 24/7 support line
- You may pass 250 employees
Get these in writing before you sign
- Package or bundle and monthly fee from each, with the billing unit stated.
- Setup fee and one-time fees, including NSF, delivery, premium processing and year-end forms.
- Minimum term and renewal uplift, and the notice needed to leave.
- Free-months terms, including what is recovered if you leave early.
- Which features sit in your tier, such as SUI management, garnishments and electronic I-9.
- Time tracking and benefits as add-ons, with their prices.
- PEO terms, if you plan to move up, including who is the co-employer.
- Support hours, escalation path and the current security reports.
Paychex vs ADP: FAQs
Is Paychex cheaper than ADP?
It cannot be confirmed, because neither publishes a price. Paychex quotes four payroll packages plus HR Pro and an HR PEO. ADP quotes four RUN bundles and three Workforce Now packages. Ask both for a written all-in quote at your headcount.
Does ADP publish its prices?
No. ADP does not publish a rate for any RUN bundle or Workforce Now package, and the setup fee is unpublished except for timeclock installation. Paychex also publishes no price, so you need two quotes.
Which is better for a small business?
It depends on the team. ADP RUN covers 1 to 49 employees with a 24/7 support line, and Paychex says its best fit is about 20 to 250 and a weaker fit under 10. For very small teams, Gusto Simple at $49 plus $6 a person is worth a look.
Which is better for a growing company?
ADP has the wider range, moving from RUN to Workforce Now for 50 to 999 and 1,000+ employees. Paychex fits roughly 20 to 250 and offers an HR PEO as a step up. If you expect to pass 250, ask Paychex how it would serve you.
Is ADP or Paychex a PEO?
Both offer PEO services. Paychex has an HR PEO package and HR Pro as a non-PEO option. ADP runs a separate PEO that paid 775,000 worksite employees at June 30, 2026, though it sits outside our review.
Can either hire employees outside the US?
Neither is a clear answer. Paychex describes itself as a US provider. ADP lists a global payroll product, but our review gives no country count, so confirm coverage with ADP before relying on it.
Which has better support?
ADP has the edge on availability, with a 24/7 line on all four RUN bundles and a support score of 3.7 of 5. Paychex scores 3.5 and publishes no hours. Both draw complaints in public reviews, so ask about escalation in writing.
Do Paychex and ADP require long contracts?
ADP has no fixed term and either side can cancel on 30 days’ written notice, though processing fees can rise on 30 days’ notice after the first six months. Paychex publishes no standard minimum, but its free-months offer needs a one-year agreement.
How we compare products
Every HR Stacks comparison uses the same method, so scores line up across all our reviews and comparisons. Affiliate links never change a verdict.
Vendor-sourced pricing
Prices come only from each vendor’s own pages. Unpublished prices are marked quote only.
Same eight parameters
Both products are scored on the parameters we use for every review in the category.
Public review analysis
We read verified buyer reviews for recurring themes, weighted by sample size.
Dated and rechecked
Every comparison shows its last update date and is revised when vendors change pricing.