Here’s the math most companies never run. A role paying $20 an hour costs about $41,600 a year. Keep that role staffed through a temp agency at a typical 40% markup, and you’ll pay roughly $16,640 in markup alone over twelve months, on top of the worker’s pay. Fill the same role through RPO at the industry-standard 15% to 25% success fee, and the one-time cost is $6,240 to $10,400. Fill it through a flat-fee RPO model like RediRecruit’s 4%, and it’s $1,664.
That gap only matters once, though: when a “temporary” role has quietly become a permanent one. Temporary staffing and RPO aren’t competing for the same job. One is built for short-term, unpredictable, or seasonal work. The other is built for filling roles you know you’ll need for the long haul. The mistake is picking based on speed alone and not asking which category the role actually falls into.
What’s the Core Difference Between Temporary Staffing and RPO?
The core difference is who becomes the worker’s legal employer. In temporary staffing, the staffing agency stays the employer of record for the length of the assignment. In RPO, the person you hire becomes your company’s direct employee from day one, and the RPO firm just runs the recruiting process on your behalf.
That single difference is what drives almost everything else in this comparison: cost structure, compliance exposure, how much control you have over training and culture fit, and how the two models scale. If you want the full breakdown of how temporary staffing works day to day, we covered that in detail here. This post picks up where that one leaves off and puts the two models side by side.
How Do the Costs Actually Compare Over Time?
Temporary staffing costs scale with every hour worked, while RPO is a one-time fee that doesn’t grow no matter how long the person stays.
That’s the entire story behind the math at the top of this post. A staffing agency’s markup, typically 20% to 75% of the worker’s pay rate, is priced for a relationship that might end in two weeks. It’s a fair price for that kind of flexibility. But if the assignment keeps getting extended past three, six, twelve months, the client is paying an ongoing premium for a role that has, in practice, become permanent.
RPO flips that structure. We laid out the full range of RPO pricing models here, but the short version is that most RPO fees are a one-time percentage of the first-year salary, commonly 15% to 25% industry-wide, charged once at placement and done. There’s no markup that keeps accruing the longer the person stays. In fact, the longer they stay, the cheaper that one-time fee looks in hindsight.
Neither model is “better” on cost in the abstract. It depends entirely on how long the role will realistically exist.
Which Model Gives You More Control and Consistency?
RPO gives you more control because the worker is your direct employee from the start, while temporary staffing gives you more flexibility because someone else carries the employment relationship.
With temp staffing, the agency owns onboarding, and workers often rotate between clients, so training investment doesn’t always carry over from one assignment to the next. That’s a fair trade when the need is genuinely short-term. But for roles where culture fit, brand consistency, or client-facing polish matters, that rotation can work against you. Every new temp is a fresh onboarding cycle.
With RPO, you’re hiring the same way you’d hire directly, just with a dedicated recruiting team doing the sourcing and screening. The person is trained once, invested in once, and stays as long as any other employee would.
What Are the Compliance and Liability Differences?
Temporary staffing carries real joint employer and misclassification risk if the client manages the worker too much like a direct employee; RPO carries almost none, because there’s no third party in the employment relationship at all.
We went deep on the specific rules (the NLRB’s joint employer standard, the IRS’s common law test, ACA obligations) in the compliance section of our temporary staffing guide, so we won’t repeat all of it here. The short version for this comparison: under temp staffing, risk shows up the moment a client starts directing a temp worker’s schedule, discipline, or day-to-day work the way it would a direct employee, since that’s exactly what regulators look at when deciding joint employer status.
Under RPO, that risk mostly doesn’t exist. The RPO firm isn’t the employer at any point. It’s helping you hire your own employee, so there’s no co-employment question to untangle in the first place.
When Does Temporary Staffing Make More Sense Than RPO?
Temporary staffing is the better fit whenever the need has a real end date or genuinely uncertain duration.
- Seasonal demand spikes (retail, logistics, hospitality)
- Covering a specific employee’s leave
- A defined project with a known end point
- Testing whether a new role or department is even needed before committing headcount
When Does RPO Make More Sense Than Temporary Staffing?
RPO is the better fit whenever the role is one you’d keep filled indefinitely, even if the current opening feels urgent.
- Core, ongoing roles where turnover is expensive
- Roles where training investment and culture fit actually matter
- Any role currently staffed on a “temporary” basis that’s been extended more than once
- Situations where you want to avoid joint employer or misclassification exposure entirely
Can You Use Both at the Same Time?
Yes, and most companies that scale past a certain size end up doing exactly this. Temp staffing covers the unpredictable, short-term swings. RPO handles the roles you know you’ll always be filling. They’re not a either/or decision so much as two tools that solve different problems on the same hiring calendar.
Temporary Staffing vs. RPO: Side by Side
| Factor | Temporary Staffing | RPO |
|---|---|---|
| Legal employer | Staffing agency | Your company |
| Typical cost | Hourly markup, 20% to 75% on pay rate | One-time fee, 15% to 25% of salary (RediRecruit: flat 4%) |
| Best for | Short-term, seasonal, or uncertain-duration needs | Ongoing or permanent hiring, at any volume |
| Speed to start | Days | Days to a few weeks, depending on role complexity |
| Control over training and culture fit | Limited; worker belongs to the agency | Full; worker is your employee from day one |
| Joint employer / misclassification risk | Real, if the client manages the worker like a direct hire | Minimal; no third-party employment relationship exists |
| Cost over a full year on one role | Compounds continuously | Fixed at placement, regardless of tenure |
Frequently Asked Questions
Is RPO more expensive than temporary staffing?
Not necessarily, and often the opposite over time. Temp staffing usually costs less for a short assignment. RPO usually costs less once a role has been filled (or would need to be filled) for more than a few months, since its fee is one-time rather than ongoing.
Can a “temporary” role become a case for RPO instead?
Yes, and it’s one of the most common reasons companies switch models. If a temp assignment keeps getting renewed past its original end date, that’s usually a sign the role is actually permanent and worth evaluating for RPO instead.
Does RPO work for short-term or urgent hiring needs?
RPO is built for permanent hiring, so it’s not the right tool for a two-week gap. But “urgent” and “short-term” aren’t the same thing. An urgent permanent hire is still a good RPO fit.
Who is the legal employer under RPO vs. temporary staffing?
Under temporary staffing, the staffing agency is the legal employer for the length of the assignment. Under RPO, your company is the legal employer from the day the person is hired.
Can a business use temporary staffing and RPO at the same time?
Yes. Many companies use temp staffing for seasonal or unpredictable swings and RPO for their ongoing permanent hiring, running both at once without conflict.
Is RPO only worth it for high-volume hiring?
No. RPO scales down to a single role and up to dozens. The value isn’t about volume, it’s about whether the role is permanent and worth a dedicated recruiting process.
Does RPO create joint employer risk the way temp staffing can?
No. Joint employer risk comes from a third party (the staffing agency) sharing employment responsibility with the client. RPO doesn’t introduce a third party into the employment relationship at all, since the worker is your direct employee from the start.
What’s the biggest mistake companies make when choosing between the two?
Choosing based on how fast they need someone, rather than how long they’ll actually need them. Speed matters for the first hire. Duration determines which model actually costs less.