PEO vs Independent Broker Total Cost Comparison

A PEO quote and a broker's "free" pitch are both incomplete numbers, and neither failure is an accident. Each model is built so that its true cost stays hard to see. The traditional broker looks free because the carrier pays the commission, but that commission is already built into the premium whether a broker is involved or not: the cost exists, it's just hidden from view. A CFO who sets a PEO quote against a broker-plus-carrier arrangement is comparing one kind of hidden cost to another, and without a structured way to break both apart, the number that comes out is wrong on both sides.

How PEO Pricing Is Structured

PEOs price their services in one of two ways, and the choice between them changes the final bill more than most buyers realize at signing. With PEPM, or per-employee-per-month pricing, you pay a flat fee per worker, and it doesn't matter what that worker earns. Percentage-of-payroll pricing does the opposite: it scales with compensation, which makes it cheaper for a lower-wage workforce but means the fee grows every time someone gets a raise or a promotion, with no change in what the PEO actually delivers. That growth becomes a built-in cost increase at every renewal, even when nothing about the service has changed.

Small business PEO pricing typically runs $1,200 to $1,600 per employee per year, with administrative fees ranging from $40 to $160 per employee per month, or 2% to 6% of total payroll. Labor costs, benefits premiums, and payroll taxes stay what they are; the PEO manages them, and whether those costs end up lower through the PEO than through an independent setup is a separate question that needs its own math.

How Broker Compensation Works

A traditional broker isn't free in any real sense: the commission that pays for the broker's work is already built into the carrier's pricing, whether or not a broker is involved. An independent broker gets paid by the PEO or carrier the employer ends up choosing, as part of that provider's standard channel partner arrangement, so bringing in a broker doesn't add a cost. It adds someone representing the employer's interests in a transaction that was going to carry that commission regardless.

What matters is not whether commissions exist, but whether they stay the same across every provider the broker could recommend. None of this changes who's legally on the hook: the employer stays the plan sponsor and keeps fiduciary duty under ERISA no matter which model is used. A broker, a TPA, or a PEO acts as an agent, and that liability never actually transfers.

The cost comparison at low headcount: where the PEO case is strongest

Below roughly 50 employees, the PEO's case gets genuinely strong. Group purchasing power on health insurance can produce savings that are larger than the entire administrative fee, which makes the bundled price lower than anything the employer could put together on its own. Small employers shopping the standalone market pay materially more per employee per month for a decent PPO than they would inside a PEO's large-group pool, and that gap on medical coverage alone can be substantial. For a 15-person company, the per-employee health savings can add up to more than the PEO's entire annual service fee, so the bundle pays for itself through benefits purchasing power before anything else is counted. That purchasing power, access to health plans that would otherwise require far more scale to negotiate, is the biggest source of PEO return on investment for a small employer.

Workers' comp adds a second lever at this size. Still, the objection to going broker-only at this size holds up. A small employer has limited leverage in the standalone market, and no broker, however good, can manufacture group-pool pricing for a company with 15 employees.

The salary-band math that changes everything for tech companies specifically

Everything above changes once compensation enters the picture, and compensation is where tech companies diverge sharply from the service businesses that PEO pricing examples usually assume. Set that against PEPM pricing at the same headcount: the per-employee annual gap for high-salary roles is large enough that it compounds meaningfully across an entire engineering team.

Consider a team of 30 engineers. Under percentage-of-payroll pricing, the same 30-person team generates a fee that rises every time someone gets a raise, and it keeps rising at every review cycle without the PEO doing anything more for the company in return. The "50 to 75 employee" inflection point commonly cited in PEO literature assumes a median-wage workforce, not an engineering team paid well above it.

The six hidden costs that never appear in a PEO proposal

The administrative fee is the most visible part of a PEO's cost, and it's far from the only part. At least six additional cost mechanisms sit inside the bundle, and employers rarely price them out before they sign.

The first is administrative overhead embedded in benefits. In an unbundled setup, you pay the carrier's actual cost plus a separate, visible broker commission. The third is the absence of claims data. PEOs generally don't share detailed claims data with individual employers because benefits run through fully-insured pooled plans where the carrier keeps that data. Without it, an employer can't identify what's driving cost, optimize plan design, or negotiate a renewal from its own numbers, and that gap compounds year over year.

The fourth is lock-in. The sixth follows directly from that: the employer has no independent comparison point to judge whether the increase is fair.

The compliance costs that fall on the employer regardless of which model is used

One assumption drives a lot of PEO purchasing decisions: that signing with a PEO hands compliance risk over to the PEO. That assumption is wrong. Employers keep fiduciary responsibility for benefits compliance under ERISA no matter which model they use. A PEO administers the tasks; it doesn't absorb the legal exposure, and the cost of getting something wrong still lands on the plan sponsor either way.

Form 5500 is one example. Employers sponsoring plans with 100 or more participants must file it annually with the DOL and IRS, and that obligation belongs to the plan sponsor, not to whoever is administering the paperwork. ACA affordability brings its own fixed numbers to track. The IRS set the affordability percentage at 9.96% for plan years beginning in 2026, with out-of-pocket maximums of $10,600 for self-only coverage and $21,200 for family coverage, and those thresholds apply to the plan sponsor at every renewal regardless of model.

Newer obligations stack on top of the older ones. Starting in 2026, ERISA fiduciary duties extend to cybersecurity due diligence over plan data and participant records, which reaches into how a PEO or TPA handles the employer's employee data. Multi-state hiring adds yet another layer: state leave programs, state retirement mandates, and COBRA continuation each carry different headcount thresholds across jurisdictions, and a PEO administers that complexity without eliminating the employer's duty to monitor it. A broker arrangement with genuine compliance monitoring built in is no less compliant than a PEO. What determines the employer's actual exposure is whether the compliance work gets done, not which model is nominally responsible for doing it.

Headcount and Salary Thresholds That Change the Verdict

There's no single headcount where a PEO stops making sense and a broker starts. Headcount, average salary, and how much of the PEO's bundle the employer actually uses together set the crossing point, and for a tech company, that point arrives earlier than most PEO providers say out loud. A common PEO fit range runs from roughly 10 to 500 employees, but the top end of that range describes who is structurally eligible to use a PEO, not who gets the best economics from one. The return on investment is strongest near the bottom of that range and gets weaker as both headcount and salary climb.

A second shift happens independent of headcount. As a tech company's workforce stabilizes and claims data starts to accumulate, the employer becomes eligible for level-funded or self-funded benefit arrangements, and these can produce real savings. Those arrangements are structurally out of reach inside a PEO bundle, because the PEO's pooled, fully-insured structure doesn't pass claims data back to the individual employer.

The exit costs that make leaving a PEO more expensive than the savings suggest

If you count every real cost of the transition, a PEO exit that looks like pure savings on a monthly fee comparison can turn budget-negative for an entire year. Early termination fees built into PEO contracts can run substantial, depending on contract size and how far into the term the exit happens, and that cost almost never appears in the spreadsheet a CFO builds to justify the move, because the contract's termination language buries it there.

Replacing a PEO means standing up independent payroll under the employer's own EIN, picking and implementing an HRIS, transferring workers' comp coverage, and setting up benefits independently. A mid-year exit can force the employer to reset the FUTA and SUTA wage base. That means paying those payroll taxes twice on the same employees within the same calendar year.

PEO contracts typically run 12 months, with some providers offering 24-month terms, and most carry auto-renewal clauses. A reactive exit, triggered only once a CFO notices the monthly fee has grown uncomfortable, is the one that produces budget surprises.

Running a Rigorous Total Cost Comparison

A valid comparison between a PEO and an independent broker has to happen line by line, not fee against fee. Setting the PEO's bundled rate directly against the broker's apparent zero cost, without pricing out every component on both sides, produces the wrong answer every time.

The correct structure starts by listing every service the PEO bundle covers, then pricing each one independently: what a standalone payroll vendor would charge, what a benefits broker could actually deliver on health premiums, what an HRIS costs on its own, what a fractional compliance resource runs. A genuine independent broker reviews a PEO proposal the same way, line by line, because admin fees, SUTA and workers' comp spread, EPLI bundling, and setup fees are exactly where margin hides, and that review needs to happen before signing, not after the first renewal increase lands. If a PEO won't break its pricing apart, you can't compare it accurately to anything.

Year-two cost matters as much as year-one, because under percentage-of-payroll pricing the fee keeps climbing with every merit increase even though the service never changes. A real comparison models cost over two to three years, not just the first contract term. Employers seeking genuine cost transparency need a framework that prices each component separately, payroll, benefits, compliance, support, so the comparison produces an accurate number in both directions. This kind of comparison is easier to run with a dedicated advisor who has already built the model than to reconstruct from scratch with an in-house spreadsheet.

Spine and other advisory models compared to the PEO and traditional broker on total cost

Once total cost is measured properly, counting hidden fees, service gaps, exit costs, and compliance exposure, an AI-native brokerage model tends to outperform both the PEO and the traditional broker for tech companies at mid-scale. It can deliver the service depth of a PEO without the bundled fee, the co-employment structure, or the limits on plan flexibility that come with it.

Spine is an AI-native benefits brokerage and PEO-replacement platform built for startups and tech companies that have outgrown a PEO or want something sharper than a traditional broker relationship. It's paid by carriers at no cost to the employer, the same way a broker is, with no per-employee fee and no co-employment arrangement attached. It delivers the stack a PEO bundles, health insurance, compliance monitoring across more than 10,000 jurisdictions, payroll workflow support, and employee benefits support, without requiring the employer to rip out its existing HRIS or enter co-employment. A 24/7 employee concierge through the Heal companion app replaces the PDF-and-800-number model that both PEOs and traditional brokers tend to offer employees, and a network of fractional HR practitioners covers people-strategy needs, recruiting, performance, compensation, culture, beyond what Spine handles directly, available on demand. There's no exit penalty, no co-employment to unwind, and no mid-year tax trap, so a company that outgrows the arrangement or is preparing for a transaction doesn't face the costs that make a PEO exit budget-negative. The strongest fit is a tech company between 30 and 200 employees, paying above-median salaries, at or past the PEO inflection point, or preparing for a deal that requires a clean employment structure.

An independent PEO broker remains a reasonable option for a different kind of buyer: an advisor who shops multiple PEO providers, runs the RFP, negotiates terms, and stays engaged through implementation and renewal, paid by whichever PEO gets selected, at no added cost to the employer. Genuine independence here requires a broker representing 10 or more PEO providers with no volume commitments or override deals tilting the recommendation toward any single one; a broker tied to one or two providers is a sales channel wearing an advisor's title. This model earns its keep when the employer sits in the window where PEO economics genuinely work, under 50 employees, limited leverage in the standalone market, and needs help sorting through more than 500 PEO options. It solves none of the plan flexibility limits, the inability to access claims data, or the percentage-of-payroll escalation. It optimizes inside the PEO model without being able to change the model's structure.

A traditional independent broker working carrier-direct carries the lowest visible cost at any headcount, since the commission sits inside carrier pricing that exists whether or not a broker is involved, and the employer pays carriers directly while choosing payroll, HRIS, and compliance support separately. That model asks the employer to assemble and run the unbundled stack on its own, which works well with real internal HR capacity and poorly without it. For a tech company weighing headcount, salary level, and internal HR bandwidth, the total cost answer comes down to whether it needs the service depth of a PEO without inheriting the bundled fee and the structural lock-in that come with it.