Temporary staffing is a hiring model where a staffing agency, not the company where the work happens, is the legal employer of the worker. The agency handles recruiting, payroll, taxes, and workers’ compensation, while the client company directs the day to day work. Assignments can run anywhere from a single day to several months.
It is one of the most common ways US businesses fill short-term gaps, and it runs on a completely different structure than hiring someone directly or working with a recruiting outsourcing partner. American Staffing Association data shows US staffing companies employed close to 2.2 million temporary and contract workers on an average week in 2024, and hired 12.7 million temporary and contract employees over the course of 2023, so the model is far from a niche option.
Quick facts:
- The staffing agency, not the client company, is the legal employer of record.
- Typical markup on a temp worker’s pay rate runs 20% to 75%, most commonly 30% to 50%.
- Temp-to-hire conversion fees typically run 10% to 25% of first-year salary, often on a sliding scale.
- Direct hire and RPO placement fees are a one-time cost tied to salary, not an hourly markup.
- Compliance risk (joint employer status, misclassification, ACA coverage) depends on how much day-to-day control the client exercises, not just what the contract says.
How Does Temporary Staffing Work?
Temporary staffing works through a five-step cycle: the company identifies a short-term need, a staffing agency sources and screens candidates, a worker is placed on assignment, the agency runs payroll and compliance for that worker, and the assignment ends or converts to something longer.
Here is what that looks like in practice:
- The need is identified. A business has a short-term gap, often from seasonal demand, a special project, or an employee on leave.
- The agency is briefed. The company shares the role, required skills, schedule, and expected duration.
- Sourcing and screening happen fast. The agency draws from its existing worker pool or actively recruits, then screens for fit.
- The worker starts on assignment. They report to the client’s site or systems and follow the client’s day-to-day direction, but they stay on the agency’s payroll.
- The agency manages the paperwork. Payroll, tax withholding, workers’ comp, and (in most cases) benefits eligibility stay with the agency for the length of the assignment.
The part that trips people up is step four and five happening at the same time. The client directs the work, but the agency remains legally responsible for the worker. That split is the entire reason temporary staffing exists as a distinct model, and it is also where most of the compliance questions later in this guide come from.
What Types of Temporary Staffing Are There?
There are four common types of temporary staffing arrangements: short-term or seasonal, temp-to-hire, long-term or project-based, and specialized or professional staffing.
- Short-term or seasonal staffing. Covers demand spikes, like retail during the holidays or warehouses during peak shipping season. Assignments often run days to a few weeks.
- Temp-to-hire (contract-to-hire). A defined trial period, usually 3 to 6 months, where both sides evaluate fit before a permanent offer is made. If the company hires the worker directly, a conversion fee usually applies (more on that below).
- Long-term or project-based staffing. Assignments tied to a specific project or extended coverage need, often running several months to a year.
- Specialized or professional staffing. Covers roles that need licensed or niche skills, such as IT, healthcare, finance, or engineering. Markup tends to run higher here because sourcing and vetting take more work.
How Much Does Temporary Staffing Cost?
Temporary staffing is billed as an hourly rate that includes a markup on the worker’s pay, typically 20% to 75%, with most standard placements clustering between 30% and 50%.
The formula is simple: bill rate = pay rate x (1 + markup). If a worker earns $20 an hour and the agency’s markup is 45%, the client is billed $29 an hour. The worker still gets $20; the extra $9 goes to the agency.
That markup is not agency profit. Most of it pays for costs the agency is legally on the hook for as the employer of record. A typical 50% markup breaks down roughly like this:
This is an illustrative breakdown of a 50% markup, not a fixed formula. The exact split shifts with role complexity, benefits offered, and state-level costs like unemployment insurance rates.
Other cost structures worth knowing:
- Direct-hire and RPO placement fees are a one-time cost, usually 15% to 30% of the candidate’s first-year salary for standard direct-hire search, rather than an hourly markup. RediRecruit charges a flat 4% success fee instead of the industry-standard 20% to 25%, which is worth knowing if you are weighing temp staffing against a full-cycle RPO engagement for a role that will realistically become permanent.
- Temp-to-hire conversion fees typically run 10% to 25% of the worker’s first-year salary, often on a sliding scale that decreases the longer the person has already worked the assignment, and is frequently waived entirely after a set number of hours (commonly somewhere between 500 and 1,500 hours, depending on the agency).
How Does Temporary Staffing Compare to RPO, Direct Hire, PEO, and EOR?
Temporary staffing, RPO, direct hire, PEO, and EOR solve different problems, and the biggest point of confusion is that only the first three are actually hiring models. PEO and EOR are employment infrastructure for people you have already decided to hire.
| Model | Who’s the legal employer | Typical cost | Best for |
|---|---|---|---|
| Temporary staffing | Staffing agency | Hourly markup, 20% to 75% on pay rate | Short-term, seasonal, or fluctuating workload |
| RPO (full-cycle recruiting) | The client company | Success-based fee, commonly 15% to 25% of salary (RediRecruit: flat 4%) | Permanent hiring, at any volume, without building an internal team |
| Direct hire (in-house) | The client company | Internal recruiter salaries, job ad spend, tools | Companies with established internal recruiting capacity |
| PEO | Co-employment; PEO is employer of record for HR/payroll purposes | $40 to $160 per employee per month, or 2% to 12% of payroll | Outsourcing HR, payroll, and benefits admin for staff you already employ |
| EOR | The EOR | $199 to $1,000+ per employee per month, or roughly 8% to 25% of salary | Hiring in a state or country where you don’t have a legal entity |
The practical takeaway: if the need is short-term and you want someone else holding the legal employment risk, temp staffing fits. If you are filling a permanent role and want a dedicated recruiting team without the 20%+ industry-standard fee, that is what RPO is built for. PEO and EOR only enter the picture once someone is already hired and you are deciding who administers their employment.
What Are the Benefits of Temporary Staffing?
Temporary staffing’s main advantage is speed and flexibility without a long-term commitment, though it trades that flexibility for less control over training, consistency, and cost predictability over time.
For employers:
- Scale headcount up or down quickly without layoffs or long hiring cycles.
- Skip most of the overhead of full-time employment, like benefits and PTO accrual.
- Try out a worker before committing to a permanent offer.
- Access specialized skills for a defined project without adding permanent headcount.
Trade-offs to weigh:
- Markup adds up over a long assignment. A role kept on temp status for a full year can end up costing more than a one-time direct-hire or RPO placement fee would have.
- Repeated onboarding as temps rotate can hurt consistency.
- Less day-to-day control over training and culture fit compared to a direct hire.
What Are the Compliance Risks Employers Need to Know?
The three biggest compliance risks in temporary staffing are joint employer liability, worker misclassification, and confusion over who owes ACA health coverage, and all three hinge on how much control the client actually exercises, not just what the staffing contract says. This section reflects rules current as of August 2026; verify the latest status before making compliance decisions, and talk to employment counsel for anything specific to your business.
Joint employer status. A client company can be treated as a “joint employer” of a temp worker if it exercises enough control over that worker’s job. On February 25, 2026, the National Labor Relations Board reinstated the narrower 2020 standard, which only finds joint employer status where a company has “substantial direct and immediate control” over essential terms like wages, discipline, or supervision. This replaced a broader 2023 rule that a federal court had already struck down in March 2024. Separately, the Department of Labor’s Wage and Hour Division proposed its own joint employer rule on April 22, 2026, covering the FLSA, FMLA, and migrant worker protections. As a practical matter, letting the staffing agency handle discipline, scheduling, and pay decisions keeps a client further from joint employer status than managing those directly.
Worker misclassification. The IRS uses a three-part common law test to decide whether a worker is an employee: behavioral control (who directs how the work gets done), financial control (who bears the financial risk), and the type of relationship between the parties. In a properly structured staffing arrangement, this test usually does not apply to the client, since the agency is already the employer of record. It becomes relevant the moment a company starts treating a temp like a direct hire in practice, such as setting their schedule, disciplining them directly, or keeping them on assignment indefinitely with no defined end date.
ACA employer mandate. Under IRS final rules, a temporary staffing firm is generally treated as the common law employer responsible for the ACA’s employer mandate for the workers it places, which differs from some other staffing or PEO arrangements where the client can end up being the responsible party. This is one of the more misunderstood areas of temp staffing compliance, and it is worth confirming coverage responsibility in writing in the staffing agreement rather than assuming.
State-level rules. A number of states require staffing agencies to register or hold a license, and several have their own wage and hour protections specific to temporary workers. Requirements vary by state, so check local rules before assuming federal guidance covers everything.
When Should a Business Choose Temporary Staffing?
Temporary staffing makes the most sense for short-term, seasonal, or trial-period needs, and makes the least sense for roles a business already knows will be permanent and ongoing.
Good fit for temp staffing:
- Seasonal demand spikes (retail, hospitality, logistics)
- Covering an employee on extended leave
- A defined project with a clear end date
- Testing a new role or department before committing to permanent headcount
Better fit for direct hire or RPO:
- Core, ongoing roles where turnover is costly
- Leadership or strategic positions
- Situations where the markup on an extended temp assignment would end up costing more over a year than a one-time placement fee
Frequently Asked Questions
What’s the difference between temporary staffing and RPO?
In temp staffing, the staffing agency is the legal employer and bills an hourly markup. In RPO, the client company is the legal employer, and the RPO firm runs the full recruiting process for a one-time or success-based fee tied to salary, not hours worked.
How much does temporary staffing cost per hour?
The client pays the worker’s pay rate plus a markup, typically 20% to 75%, most commonly 30% to 50% for standard roles. A $20/hour worker with a 45% markup means a $29/hour bill rate.
Who is the legal employer in a temporary staffing arrangement?
The staffing agency. It handles payroll, tax withholding, and workers’ compensation, even though the worker reports to and is directed by the client company day to day.
Can a temporary worker become a permanent employee?
Yes. This is common enough that it has its own name, temp-to-hire or contract-to-hire, and it usually comes with a conversion fee if the client hires the worker directly.
How much is a typical temp-to-hire conversion fee?
Usually 10% to 25% of the worker’s first-year salary, often on a sliding scale that decreases the longer they’ve already been on assignment, and frequently waived after a set number of hours worked.
Do temporary employees receive benefits?
It depends on assignment length and the agency’s policies. Short assignments often come with only statutory protections like workers’ comp. Longer assignments are more likely to include health insurance or PTO through the agency.
Who is responsible for ACA compliance for temp workers?
Generally the staffing agency, since IRS rules typically treat temporary staffing firms as the common law employer for ACA purposes. It is still worth confirming this in writing in the staffing agreement.
What happens if a company misclassifies a temporary worker?
Misclassification can trigger back taxes, penalties, and liability under wage and hour law. Risk goes up the more a client controls a temp worker’s schedule, discipline, or day-to-day direction, since that control is exactly what regulators look at.