ADP

ADP is quote-only, with no public price list. Pricing for ADP RUN (its small-business product) scales by headcount, the plan you choose (Essential, Enhanced, Complete, or HR Pro), and how much HR you add, so you receive a tailored quote rather than a self-serve checkout price. If you want published, self-serve pricing instead, Gusto and OnPay list their base and per-employee fees on this page.

Yes. ADP is full-service, calculating, filing, and paying your federal, state, and local payroll taxes, and generating and filing W-2s and 1099s. It also handles new-hire reporting. ADP's compliance depth is one of its core strengths, backed by decades of experience and a large support organization, which is why larger and more complex businesses often choose it.

ADP serves both. ADP RUN is its small-business product, scaling down to a single employee, while ADP Workforce Now serves mid-market and enterprise. The trade-off is that the platform and pricing can be more complex than a self-serve SMB tool, so very small, simple payrolls sometimes find Gusto, OnPay, or Patriot quicker to set up. ADP earns its place when you need scale, compliance depth, or a path to grow.

Yes. ADP runs multi-state US payroll and, through ADP GlobalView and Celergo, supports payroll in many countries, which is rare among US-focused providers. For a US business that expects to hire across state lines or internationally, this breadth is a genuine differentiator versus US-only specialists.

Yes. ADP offers pay-as-you-go workers compensation that tracks actual payroll, plus benefits administration including health insurance and 401(k) through its brokerage. These sit alongside payroll so deductions and premiums reconcile automatically, which suits businesses that want payroll, benefits, and compliance from one provider.