When "Temporary" Gets Complicated: The Hidden Risks of Hiring Temp Workers

A worker employed for a limited period of time, often to cover for absent employees, handle special projects, or manage seasonal increases in workload.
Jimmy Law

If you manage a restaurant, retail store, or service business, you've probably hired temporary employees to cover a rush, fill in for someone on leave, or handle a special project. It seems straightforward: bring in extra hands for a limited time, no strings attached. But the reality is far more complex than most managers realize.

The U.S. Department of Labor defines a temporary employee as someone hired for one year or less with a specific end date. That sounds simple enough. What many businesses don't know is that hiring temporary workers creates a web of legal obligations around safety training, wage compliance, potential joint employer liability, and benefits eligibility that can catch unprepared managers off guard.

This article is for informational purposes only and does not constitute legal advice. Employment laws vary by state and situation. Consult with an employment attorney or HR professional for guidance specific to your business.

What Makes Someone a Temporary Employee?

A temporary employee is fundamentally different from other worker classifications. Unlike seasonal employees who work during predictable busy periods or part-time employees defined by weekly hours worked, temporary workers are classified by duration of employment. Consider how long they're employed, not how many hours they work per week.

According to the Department of Labor, temporary employment has these key characteristics:

The distinction matters because misclassifying workers carries severe penalties. Companies have paid millions in fines. For example, Uber paid $100 million in New Jersey alone for misclassifying drivers, and Nike faced potential fines exceeding $530 million for allegedly misclassifying thousands of temporary office workers.

The Two Ways Businesses Hire Temporary Workers

There are two primary ways shift-based businesses bring in temporary help, each with dramatically different legal implications:

Direct Hire

You recruit, hire, and pay the temporary employee directly. You handle all payroll: taxes, workers' compensation insurance, and compliance obligations. You have full control, but also full responsibility for everything from wage and hour compliance to workplace safety.

Through a Staffing Agency

A temporary staffing agency recruits, hires, and pays the worker, then assigns them to work at your location. This is where things get complicated, because OSHA explicitly states that "the staffing agency and the staffing agency's client (the host employer) are joint employers of temporary workers and, therefore, both are responsible for providing and maintaining a safe work environment."

This joint employer status means you can't simply hand off responsibility to the agency. Both parties share legal obligations for the worker's safety, training, and in many cases, wage compliance.

The Critical Safety Risk Most Managers Miss

Here's a sobering statistic: According to research from the National Employment Law Project, temporary workers face increased risk of workplace injury compared to permanent employees in similar positions. They're often placed in hazardous jobs without adequate safety training.

The Bureau of Labor Statistics reported that in 2023, private industry employers reported 2.6 million nonfatal workplace injuries and illnesses. Industries that frequently use temporary workers, including accommodation and food services, retail trade, and manufacturing, showed significant injury rates.

The Joint Liability Trap

If you hire employees under a Professional Employer Organization (PEO) or use a staffing agency, both you and the agency can be cited by OSHA for safety violations. OSHA's position is clear: "OSHA could hold both the host and temporary employers responsible for the violative condition(s)—and that can include lack of adequate training regarding workplace hazards."

This creates practical problems:

The best practice is to spell out these responsibilities in writing before the worker starts. OSHA specifically recommends that "the temporary staffing agency and the host employer set out their respective responsibilities for compliance with applicable OSHA standards in their contract."

The 1000-Hour Rule Nobody Warned You About

Here's where temporary employment gets expensive if you're not paying attention. Under the Employee Retirement Income Security Act (ERISA), any employee—including temporary workers—who works 1,000 hours or more in a 12-month period must be allowed to participate in your company's retirement plan if you offer one.

One thousand hours translates to roughly 20 hours per week for a year. For many shift-based businesses, this threshold sneaks up quickly:

The 2019 SECURE Act and its 2024 updates created additional requirements: long-term part-time employees (which includes many temps) who work at least 500 hours annually for three consecutive years must be allowed to make elective deferrals to 401(k) plans.

The trap: Many businesses don't track temporary employee hours carefully enough to catch when someone approaches these thresholds. By the time you realize it, you may already be out of compliance.

Wage and Hour Compliance: Where the Lawsuits Come From

The Fair Labor Standards Act (FLSA) applies equally to temporary and permanent workers. This means:

In a joint employer situation with a staffing agency, both parties can be held liable for wage violations. The Department of Labor doesn't care who you thought was responsible; if the worker wasn't paid correctly, both entities may face penalties.

DOL penalties for wage violations include:

Some states have passed specific protections for temporary workers. New Jersey's Temporary Workers' Bill of Rights, enacted in 2023, requires equal pay for equal work. In other words, temporary workers must receive the same average rate and benefits as permanent employees doing substantially similar work.

Workers' Compensation: The Insurance Nightmare

When a temporary worker gets injured at your business, whose workers' compensation insurance covers it? The answer isn't as clear-cut as you'd think.

If you hired the worker directly, your own workers' comp policy covers the temp just like any other employee. But with staffing agencies, things get murky. Theoretically, the agency's policy covers their employees. However, you can still be sued by the injured worker if there are coverage gaps or disputes about who was supervising the worker when the injury occurred.

Critical steps to protect your business:

  1. Always get a certificate of insurance from the staffing agency showing current workers' comp coverage
  2. Consider asking to be named as an alternate employer on their policy via endorsement
  3. Review your own general liability policy for exclusions related to temporary workers
  4. Ensure you have "Coverage for Injury to Leased Workers" endorsement if using temps regularly

The Real-World Problems Shift Managers Face

Beyond the legal framework, here are the practical challenges businesses report with temporary employees:

1. The Training Time Crunch

You need help now, but a temp worker doesn't know your systems, layout, or procedures. They make mistakes while learning, which can mean:

In industries with complex safety requirements or food handling protocols, inadequate training of temps creates serious liability risks. OSHA data shows that lack of adequate training is a leading factor in temporary worker injuries.

2. The Scheduling Black Hole

Temporary workers often juggle multiple gigs or have limited availability. You might hire someone for flexibility, only to find they're unreliable or have conflicts with other jobs. Unlike permanent employees who prioritize your schedule, temps may treat your shifts as secondary, leading to no-shows and last-minute cancellations.

3. The Permanent-Temp Creep

You hire someone "temporarily" but they're excellent, so you keep extending their assignment. Suddenly, they've been with you for 11 months and you're approaching both the one-year limit and the 1,000-hour benefits threshold. Now what? Federal law says you can't hire the same temporary worker for more than two consecutive years without treating them as a regular employee with full benefits.

4. The Communication Gap

In joint employer situations, critical information falls through cracks between you and the staffing agency. The agency doesn't know about the hazard in your back stockroom. You don't know the worker has a relevant injury history. The worker doesn't know who to report a safety concern to. These gaps create liability for everyone.

5. The Customer Service Impact

Temporary workers don't have the same investment in your business as permanent staff. Customers can tell when they're being served by someone who doesn't know the menu, can't answer questions about products, or lacks familiarity with company policies. For businesses built on customer relationships and repeat visits, this matters.

How This Differs from Seasonal and Part-Time Workers

Understanding the distinctions helps you classify workers correctly:

Seasonal Employees: A subset of temporary workers tied to predictable seasonal demand (holiday retail rush, summer tourism, harvest seasons). They're still temporary, but the pattern is recurring and the role is considered a seasonal job. Many temporary workers are NOT seasonal. For example, someone covering parental leave or a special project is temporary but not seasonal.

Part-Time Hours: Refers to how much someone works (typically under 30-35 hours per week), not how long they work for you. A temporary employee can work full-time or part-time hours. The classifications overlap but measure different things. A temp working 40 hours/week is full-time temporary. A permanent employee working 20 hours/week is part-time permanent.

Unemployment: When temporary employment ends on its scheduled end date, the worker may be eligible for unemployment benefits depending on state law, their total work history, and whether they were employed through an agency or directly. This varies significantly by state.

Best Practices for Managing Temporary Employees

Based on guidance from OSHA, DOL, and employment law experts, here's what shift-based businesses should do:

Before Hiring

During Employment

At Assignment End

Be sure to consult an employment attorney if:

Employment classification is fact-specific and complex. What works for one business may not work for another, even in the same industry. The IRS provides Form SS-8 that employers or workers can file to request an official determination of worker status if there's uncertainty.

Using Temporary Workers Responsibly

Temporary employees can be a valuable resource for covering short-term needs in shift-based businesses. But "temporary" doesn't mean "simple." Between joint employer liability, safety training requirements, the 1,000-hour rule, and complex wage and hour compliance, temporary workers create risks that many managers don't anticipate.

The businesses that succeed with temporary workers are those that:

Temporary employment is about the duration of the relationship, not an excuse to avoid normal employer obligations. Get it wrong, and "temporary" help can lead to permanent legal problems.

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