You’re looking at ADP because payroll feels like it’s gotten too complicated to handle in a spreadsheet, or because your accountant keeps asking you to send them better records. That’s usually when ADP’s name comes up. It’s been around since 1949, and that longevity means something — but it doesn’t mean it’s the right fit for every business.
ADP works best when you have at least 10 employees, operate in multiple states, or deal with complex payroll situations like varying pay rates, shift differentials, or commission structures. If you’re a three-person startup paying everyone the same salary twice a month, ADP is overkill. But if you’re managing hourly workers across state lines with different tax withholdings, ADP’s infrastructure starts to justify its cost.
What You Actually Get
ADP’s core offering is payroll processing with tax filing built in. You enter hours or salaries, approve the run, and ADP calculates withholdings, files your taxes, and handles direct deposits. The system integrates time tracking, benefits administration, and HR compliance tools depending on which tier you choose.
Their Run platform starts at approximately $79 per month plus $4 per employee. That gets you basic payroll and tax filing for a single state. If you need multi-state payroll, benefits administration, or HR support, you’re looking at their Comprehensive Payroll or HR Pro plans, which run between $120 and $180 per month base fee plus per-employee costs. For companies over 50 employees, they push you toward Workforce Now, which requires custom pricing but typically starts around $200 monthly plus higher per-employee fees.
The software itself is functional but dated. The interface looks like it was designed in 2015 and hasn’t changed much. Data entry is straightforward but not particularly fast. Reporting exists but requires more clicks than it should. You’re paying for reliability and compliance infrastructure, not for elegant design.
The Real Cost-Benefit Question
ADP’s value comes from offloading risk. They guarantee tax filing accuracy and cover penalties if they make a mistake. That protection matters more as you grow. A missed payroll tax deadline at five employees is a headache. At 25 employees across three states, it’s a legitimate business problem.
Compare that to Gusto, which starts at $40 per month plus $6 per employee and offers a cleaner interface with similar core features. For businesses under 15 employees in a single state, Gusto typically delivers better value. But Gusto’s support doesn’t match ADP’s depth when you’re dealing with complex payroll situations or audits.
| Provider | Starting Price | Best For | Key Limitation |
|---|---|---|---|
| ADP Run | $79/mo + $4/employee | 10+ employees, multi-state | Dated interface, higher cost |
| Gusto | $40/mo + $6/employee | Under 15 employees, simple payroll | Limited enterprise features |
| Paychex | ~$60/mo + $4/employee | Mid-sized service businesses | Support quality varies |
When To Choose ADP
Go with ADP if you’re past 15 employees, operating in multiple states, or dealing with workers’ comp, garnishments, or union dues. The system handles complexity without breaking, and their support team can actually walk you through multi-state tax situations. You’re paying for institutional knowledge as much as software.
Skip ADP if you’re under 10 employees with straightforward payroll needs. The cost doesn’t match the value at that scale, and newer platforms offer better user experiences for basic use cases. [CTA: Try Gusto] for smaller teams or [CTA: Try ADP] if you’ve outgrown simpler tools and need the infrastructure to match your complexity.
Key takeaways
- ADP Run starts around $79/month plus $4 per employee, but you need their pricier tiers ($120-180/month base) for multi-state or benefits administration
- The platform’s strength is compliance infrastructure and tax filing guarantees, not modern interface design or speed
- Switch from Gusto to ADP when you cross 15 employees or operate in multiple states — before that threshold, ADP’s cost outweighs its benefits for most businesses
StackSmall – June 2026