The payroll deadline lands on a Thursday afternoon, just as a customer calls with a problem and an employee asks why their tax withholding changed. You can handle all three, but only one of them is supposed to be your job.
That is where HR outsourcing starts to look less like a luxury and more like a business decision. For a small company, the cost can range from a modest monthly subscription to several thousand dollars a month. The gap is enormous because “HR outsourcing” covers very different services: payroll software, payroll administration, benefits support, compliance help, and a professional employer organization, or PEO, that shares responsibility for a company’s workforce.
A basic payroll service may cost less than $100 a month for a small team. A PEO can cost $500 to $1,500 per employee per year, depending on the services included. For a business with 20 employees, that difference is not a rounding error. It can determine whether outsourcing feels sensible or reckless.
The uncomfortable question is this: are you outsourcing HR because the work is genuinely too complex for your company, or because you have tolerated a broken process for so long that any outside provider now looks like a rescue operation?
The price depends on what you are actually buying
The cheapest option is usually payroll software with a small amount of administrative support. Justworks Payroll, for example, is priced at $50 per month for the company plus $8 per employee per month. A business with ten employees would therefore pay $130 per month before any additional services or fees.
Gusto follows a similar subscription model. Its Simple plan is listed at $49 per month plus $6 per user per month, while the Plus plan costs $80 per month plus $12 per user per month. For a ten-person company, that works out to $109 per month on Simple or $200 per month on Plus.
Those numbers are easy to understand, which is part of their appeal. You pay a base fee, add the number of people on payroll, and receive tools for tasks such as payroll processing, tax filings, employee onboarding, and basic reporting. The software may also reduce the time spent correcting spreadsheets or answering routine questions.
But software is not the same as outsourced HR. It may process payroll accurately while leaving the owner responsible for deciding how to classify workers, write policies, investigate complaints, handle leave questions, and respond to a government notice. If your idea of outsourcing is “someone else will make sure we are doing this correctly,” a low-cost payroll plan may not deliver what you imagined.
A PEO is a much broader arrangement. It can provide payroll, employee benefits, workers’ compensation support, HR administration, and help with employment compliance. The provider may also become a co-employer for certain administrative purposes, which changes the relationship considerably. You are no longer simply renting software. You are paying for an operating structure around your workforce.
Justworks lists its PEO Basic plan at $79 per employee per month and PEO Plus at $124 per employee per month. For ten employees, that means $790 or $1,240 per month, before considering any other costs tied to the plan. TriNet gives an example of $150 per employee per month for its PEO service. At 20 employees, the administrative fee alone would be $3,000 per month.
That last phrase matters: administrative fee alone. A PEO quote can include separate charges for benefits, insurance, workers’ compensation, or other employment-related costs. Comparing a $130 payroll subscription with a $3,000 PEO bill is not useful unless you first identify what each arrangement is handling.
Some HR outsourcing providers charge as a percentage of payroll instead of using a flat per-employee fee. A typical range is around 4% to 8% of an employee’s gross monthly wages. If an employee earns $5,000 per month, that model would cost roughly $200 to $400 for that employee each month. For a team with higher salaries, percentage-based pricing can quickly exceed a flat subscription.
This model can be attractive when the provider is handling substantial payroll and HR administration, but it also makes the bill harder to predict. A raise, a new hire, overtime, or seasonal staffing can change the monthly cost. Small businesses often like predictable expenses for good reason; percentage-based fees move in the opposite direction.
The hidden bill is your time, not just the subscription
A price comparison that ignores internal labor is almost useless. If the owner spends six hours a month fixing payroll, chasing benefit paperwork, preparing reports, and researching employment rules, the company is already paying for HR outsourcing. It is just paying the owner instead of a provider.
That time has an opportunity cost. The same six hours might have gone toward sales, hiring, customer retention, or solving a problem only the owner can solve. I have watched small companies treat the founder’s time as free until the business begins to stall, then act surprised when the bottleneck has a name and a calendar.
There are other costs that do not appear in the first quote. A provider may charge setup fees, year-end tax filing fees, per-transaction charges, or extra amounts for adding employees. Benefits administration may be included in one plan and billed separately in another. Workers’ compensation costs can vary based on the industry and the company’s claims history. A PEO may also require a minimum number of employees or impose contract terms that make switching providers inconvenient.
Benefits deserve special attention. Health insurance and other benefits can dominate the total cost of a PEO arrangement, even when the administrative fee looks reasonable. A provider may offer access to a larger benefits pool, which can be valuable for a small employer struggling to compete for talent. It can also introduce plan choices that are more expensive than the coverage your employees actually want.
Compliance support is harder to price because its value appears most clearly when something goes wrong. A provider may help with hiring documents, payroll taxes, employee records, leave administration, and workplace policies. That assistance can prevent costly mistakes, but it does not transfer every legal responsibility away from the employer. If a salesperson promises that a PEO makes employment risk disappear, keep your wallet closed and ask for the promise in writing.
A sensible budget usually starts with the narrowest problem. If payroll is the problem, compare payroll providers. If employee benefits are too difficult to manage, look at benefits administration. If the company has grown into a maze of leave requests, inconsistent policies, and compliance questions, a broader HR service may justify its higher price.
For a very small team, payroll software may cost roughly $100 to $250 per month, depending on headcount and plan level. A more hands-on payroll or HR arrangement may use a percentage of wages, often around 4% to 8% of gross monthly pay. A PEO can run from approximately $500 to $1,500 per employee per year in broad terms, while specific plans may land well above that range once administrative fees and related services are included.
The right comparison is not “Which provider is cheapest?” It is “What work disappears from my desk, and what work remains?” Ask for a sample invoice based on your actual employee count and payroll. Ask which fees change when someone is hired, terminated, promoted, or paid overtime. Ask who handles tax notices, benefit questions, employment verification, and corrections. Then calculate the cost of keeping those tasks in-house using a realistic hourly value for the person doing them.
A cheap plan that leaves the hardest problems untouched is not inexpensive. It is a subscription added to the workload you already have. A more expensive PEO may be excessive for a ten-person company with simple payroll, yet it can be rational for a growing employer that needs benefits, structured HR processes, and someone experienced to call before a minor issue becomes a serious one.
The dividing line is rarely the advertised monthly fee. It is whether the service removes uncertainty or merely moves numbers from one screen to another. If the owner still has to interpret every employment rule, check every tax filing, and explain every benefits issue, the company has not really outsourced HR; it has outsourced data entry.