Updated 30 March 2026
ADP vs Gusto
Gusto is better for under 50 employees wanting modern self-service and simple setup. ADP is better for 50+ employees needing deep compliance, garnishment handling, and benefits administration at scale. Here is the full comparison with real pricing data.
Head-to-Head Comparison
| Dimension | ADP | Gusto | Analysis |
|---|---|---|---|
| Base pricing (small biz) | $79/mo + $4/employee (RUN Essential) | $40/mo + $6/employee (Simple) | Gusto is cheaper for companies under ~20 employees. ADP's lower per-employee fee wins at higher headcounts. |
| Per-employee cost at 10 people | $11.90/employee/mo ($119 total) | $10.00/employee/mo ($100 total) | At 10 employees, Gusto saves $228 per year. |
| Per-employee cost at 50 people | $5.58/employee/mo ($279 RUN) | $13.60/employee/mo ($680 Plus) | At 50 employees, ADP saves $4,812 per year if using RUN. Workforce Now is more comparable. |
| Payroll features | Comprehensive. Certified payroll for government contractors, tip credit, prevailing wage. | Solid basics. Auto-payroll, unlimited payroll runs, contractor payments. | ADP handles edge cases (certified payroll, garnishments, complex tax scenarios) that Gusto does not. |
| HR tools | HR Pro tier includes live HR advisor access. WFN has full HRIS. | Built-in hiring, onboarding, org charts, document storage. | Gusto has more modern self-service HR. ADP has deeper compliance and advisory support. |
| Benefits administration | In-house retirement plans (not third-party). Workers comp in all 50 states. | Health insurance broker, 401(k) through Guideline, workers comp. | ADP administers retirement plans directly. Gusto uses third-party partnerships. |
| Time tracking | Included in Enhanced+ (RUN). Robust in WFN with geofencing. | Included in Plus. Basic but functional. | ADP offers more advanced time tracking for field workers and multi-location businesses. |
| Mobile app | Full-featured. Employees can view pay, request time off, manage benefits. | Clean and modern. Employees can view pay stubs and request PTO. | Both apps are well-rated. ADP has more features; Gusto has better UX. |
| Customer support | Phone support with 15 to 20 minute average hold times. Dedicated rep on WFN. | Chat and email primarily. Phone callback available. No dedicated rep. | ADP offers phone support and dedicated representatives. Gusto relies more on self-service and chat. |
| Integrations | 300+ integrations. QuickBooks, Xero, major accounting/ERP platforms. | 200+ integrations. Strong with modern tools (Slack, Deel, Rippling). | ADP has a larger partner ecosystem, especially for enterprise accounting and ERP systems. |
| Scalability | Scales from 1 to 1,000+ employees across product lines. | Best for under 200 employees. No enterprise product. | ADP can grow with you from startup to enterprise. Gusto has a ceiling. |
| User experience | Functional but dated interface. Improving with recent updates. | Modern, intuitive, consumer-grade design. Much easier to set up. | Gusto is significantly easier to use, especially for non-HR professionals. |
Where ADP Pulls Ahead
These are the specific features that justify ADP's higher cost for mid-market and enterprise businesses.
| Feature | ADP | Gusto |
|---|---|---|
| Garnishment processing | Fully automated. Handles court orders, child support, tax levies, student loans across all states. | Basic support. Manual intervention sometimes needed for complex orders. |
| Certified payroll | Built-in for government contractor compliance (Davis-Bacon, prevailing wage). | Not available. Government contractors must use ADP or a specialized tool. |
| International payroll | GlobalView and Celergo support 140+ countries. | US-only with contractor payments in 120+ countries through partnerships. |
| Retirement plan admin | In-house 401(k), 403(b), and SIMPLE IRA administration. Not a third-party handoff. | Partners with Guideline for 401(k). Solid but adds another vendor relationship. |
| Workers comp (all states) | Pay-as-you-go workers compensation in all 50 states with in-house administration. | Workers comp through Next and AP Intego. Available in most states, but some exclusions. |
| Tax penalty guarantee | ADP pays penalties and interest if they file incorrectly. Well-established track record. | Gusto also guarantees tax accuracy and covers penalties for their errors. |
Verdict by Company Size
Gusto Simple at $100/mo is $19/mo cheaper than ADP RUN Essential at $119/mo. You get a more modern interface, simpler setup (many businesses self-onboard in under an hour), and built-in contractor payments. ADP's advanced compliance features are overkill at this size. The only exception: if you need certified payroll for government contracts, ADP is the only choice.
Gusto remains cheaper, but the gap narrows. At 25 employees, Gusto Simple costs $190/mo versus ADP Essential at $179/mo. ADP is now cheaper on base price alone. But Gusto's superior onboarding tools, employee self-service, and included features (like hiring documents and e-signatures on all plans) still make it the better value for most businesses at this size.
This is the decision zone. If you operate in 3+ states, need garnishment processing, or require advanced compliance reporting, ADP wins. If you want modern UX, simple setup, and your HR needs are straightforward, Gusto Plus at $80/mo + $12/employee handles it. The deciding factor is usually whether you need ADP's compliance depth or Gusto's usability.
At this size, you need ADP Workforce Now or a comparable mid-market platform. Gusto Plus works to 200 employees but lacks the advanced analytics, multi-level approvals, and deep compliance tools that companies of this size typically require. ADP Workforce Now at $10 to $25/employee/month includes talent management, advanced workflows, and enterprise reporting that Gusto does not offer.
Gusto is not designed for companies this large. ADP Workforce Now and Vantage HCM are purpose-built for mid-market and enterprise. You get global payroll capabilities (140+ countries), strategic workforce planning, and a dedicated implementation and support team. There is no Gusto equivalent at this scale.
Switching Between ADP and Gusto
Switching from ADP to Gusto
- Best time: January 1 (avoids split-year tax complications)
- Export all employee data, tax IDs, and year-to-date payroll from ADP
- Gusto imports data through a guided migration wizard (allow 2 weeks)
- Check your ADP contract for early termination fees (remaining balance owed)
- Run parallel for one payroll cycle to verify accuracy
- Cancel ADP only after confirming Gusto tax filings are complete
Switching from Gusto to ADP
- Typical trigger: outgrowing 50 employees or needing multi-state compliance
- ADP provides a dedicated implementation specialist (included in WFN pricing)
- Data migration takes 3 to 6 weeks for Workforce Now
- ADP handles state tax re-registrations (fee applies per state)
- Expect 2 to 4 weeks of dual systems during transition
- Gusto has no cancellation fees (month-to-month billing)
The Bottom Line
If you have fewer than 50 employees, straightforward payroll needs, and want the easiest setup experience, Gusto wins. If you have 50+ employees, operate in many states, need certified payroll or complex garnishments, or want a single vendor from small business through enterprise, ADP wins. Both process payroll accurately and both guarantee tax filings. The right choice depends on your company size and complexity, not which software is objectively better.