Outsourced HR Services: How It Works and What It Costs

"Outsourced HR" is a phrase that hides a lot of variation. Three genuinely different services all go by that name, and they have very different costs, tradeoffs, and ideal customers. Before you shop, it helps to know which one you are actually looking for.

The three models of outsourced HR

1. Fractional HR

A senior HR practitioner runs your people function on a monthly retainer. You stay the sole employer; they bring the expertise. Best for companies that want senior judgment and control without a full-time hire. (See what is fractional HR.)

2. PEO (professional employer organization)

A co-employer that takes payroll, benefits, and certain liabilities onto its own books, often bundling pooled benefits plans. Best for companies that want to offload employment entirely. (See fractional HR vs PEO.)

3. Payroll-only or point solutions

Services that handle a single slice, usually payroll (Gusto, Paychex, ADP), leaving compliance and HR judgment to you. Best for companies that only need that one function automated.

What gets handled

With full-scope outsourced HR (fractional or PEO), you can hand off:

• Compliance with federal and state employment law
• Onboarding and offboarding
• Payroll and benefits administration
• Employee relations, complaints, and investigations
• Handbooks and policy
• Performance management and manager support
• Multi-state compliance as you hire remotely

How it works day to day

Modern outsourced HR is remote and runs through the tools you already use: video calls, Slack or email for questions, and shared HR platforms for records and payroll. A good outsourced partner is reachable for the urgent question and proactive on the things you would not think to ask about, like a new state's pay-transparency rule. In practice, this is often more responsive than an in-house generalist, because your HR is literally their job rather than one of ten.

What it costs

• Fractional HR: roughly $1,800 to $6,500/month, flat, regardless of headcount.
• PEO: per employee per month, often $100 to $200, so cost scales with your team, plus the benefits.
• Payroll-only: cheapest, but narrowest, covering only payroll.

For a 30-person company, fractional and PEO admin costs land closer than the marketing suggests, which is why the decision should turn on control and benefits, not just price.

How to choose

• Define your scope: everything, or just the parts you dislike?
• Decide control vs offload: keep your people yours (fractional) or hand off employment (PEO)?
• Check who does the work: a senior practitioner, or a call center?
• Confirm pricing structure: flat retainer or per-employee?
• Verify multi-state coverage if you hire remotely.

The bottom line

Outsourced HR is three services wearing one name. For most small businesses that want senior expertise without giving up control, fractional HR is the fit; for full employment offload with pooled benefits, a PEO; for just payroll, a payroll service. Bevel HR provides outsourced fractional HR nationwide, fully remote, from $1,800/month.