What are the main HR outsourcing pricing models?

There are three main models: flat monthly retainer (a fixed price for a defined scope), per-employee-per-month or PEPM (a rate times headcount, usually $80-$200 per employee), and percentage of payroll (typically 2-5% of total payroll). Flat retainers are most common and most predictable for small businesses.

Is flat-fee or per-employee HR pricing better?

Flat-fee pricing is usually better for small businesses because it is predictable and does not penalize growth. Per-employee pricing scales automatically with headcount but can get expensive as you grow and sometimes bundles software costs that inflate the rate. Flat fees make budgeting easier.

What does percentage-of-payroll HR pricing mean?

Percentage-of-payroll pricing charges 2 to 5 percent of your total payroll as the HR fee. A company with $2 million in annual payroll paying 3 percent would spend $60,000 per year, or $5,000 per month. This model is more common with PEO arrangements than with fractional HR.

HR Outsourcing Pricing Models: Flat Fee vs Per-Employee vs Percent of Payroll

When you get quotes for HR outsourcing, they will not all be structured the same way. One provider quotes a flat monthly fee, another charges per employee, a third takes a percentage of your payroll. Understanding these three models is the only way to compare offers accurately and avoid a pricing structure that punishes you as you grow.

The three pricing models at a glance

Model	How it works	Typical range
Flat monthly retainer	Fixed price for a defined scope	$1,800 – $6,500/mo
Per-employee-per-month (PEPM)	Rate × headcount	$80 – $200/employee/mo
Percentage of payroll	% of total payroll	2% – 5% of payroll

1. Flat monthly retainer

You pay a fixed price for an agreed scope of work. A 30-person company might pay $3,500/month regardless of how many questions come up or how many people you hire that month. This is the most common model for small business fractional HR because it is predictable and easy to budget. The thing to check: what is the scope, and what happens if you exceed it.

2. Per-employee-per-month (PEPM)

You pay a set rate multiplied by headcount, typically $80 to $200 per employee. A 40-person company at $100 PEPM pays $4,000/month. The upside is it scales cleanly. The downside is it can get expensive fast as you grow, and the rate sometimes bundles in HRIS software costs, so ask what is actually included at the quoted number.

3. Percentage of payroll

You pay 2 to 5 percent of your total payroll. This model shows up most often with PEO (Professional Employer Organization) arrangements rather than fractional HR. The catch is that your HR cost rises every time you give raises or hire, even if your actual HR workload does not change. For a company with a high-wage workforce, this can be the most expensive model.

Which model saves you the most?

For most small and mid-size businesses, a flat retainer is the most cost-effective and the easiest to budget. PEPM makes sense if your headcount is stable and you want costs to scale automatically. Percentage of payroll is rarely the cheapest for a growing company because it ties your HR bill to wages rather than to the actual work being done.

Bevel HR uses simple flat-rate pricing: $1,800, $3,500, or $6,500 per month depending on your size and scope. No per-employee surprises, no percentage of payroll, no software markups. Book a free assessment to see which tier fits.

Written by

David — Founder, Bevel HR

10+ years in HR across tech, clean energy, consumer brands, and field-labor operations. Certified on Gusto, Rippling, and BambooHR. Based in Eagle Mountain, Utah.

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HR Outsourcing Pricing Models Explained