Form I-9 for Temporary Employees: Who Is Responsible?

Temporary employees generally must complete Form I-9, just like permanent employees. The key question is not how long the assignment lasts—it is which organization employs the worker.

For a typical staffing placement, the staffing agency hires and employs the individual and handles Form I-9. When a business hires a temporary or seasonal employee directly, that business handles the form. If an agency worker later becomes the client's employee, the client generally must complete its own Form I-9 for that new employment relationship.

For employers hiring at volume, the biggest risk is an unclear handoff. A worker can arrive ready for a shift while the agency and client each assume the other organization completed verification.

Who completes Form I-9 for temporary workers?

Start by distinguishing three common arrangements.

Workers employed by a staffing agency

When a staffing agency employs an individual and assigns that employee to a client, the agency is generally responsible for completing and retaining Form I-9. The client generally does not complete a separate form merely because the individual works at its location.

However, the words “temporary worker” on a purchase order do not establish the employment relationship. A recruiting firm might only locate candidates, leaving the client to hire and employ them directly.

Confirm who actually hires and employs the worker. If the relationship is ambiguous, have counsel review it rather than assigning I-9 responsibility based solely on the contract's label.

Temporary employees hired directly

A company that directly hires employees for a busy season, special project, or leave coverage must complete Form I-9 for them. A planned end date does not create an exemption.

Part-time schedules also do not eliminate the requirement. A direct employee working two shifts each week still needs employment eligibility verification.

Independent contractors

Genuine independent contractors generally do not complete Form I-9 for the business purchasing their services. But a short engagement or a contractor agreement does not automatically make someone an independent contractor.

Keep classification questions separate from assignment length. Our guide to Form I-9 and independent contractors explains that distinction in more detail.

Short assignments still have I-9 deadlines

Temporary employment follows the same basic completion deadlines as other covered employment:

• Section 1: The employee completes and signs it no later than the first day of employment for pay. It may be completed earlier after the employee accepts a job offer.
• Section 2: The employer or its authorized representative completes it within three business days after the employee's first day of employment for pay.
• Employment lasting less than three business days: Section 2 must be completed no later than the first day of employment.

That final rule matters for employers hiring people directly for brief events, inventory counts, or short production runs. A two-day employee cannot simply be placed in the normal three-business-day completion queue.

For agency employees, do not automatically treat every new client assignment as a new hire. The relevant timeline follows the employment relationship with the agency, not necessarily the date the employee enters a particular client's facility.

Document the correct employment start date and route unusually short engagements to an accelerated verification workflow.

Can the client inspect documents for the staffing agency?

An employer may designate an authorized representative to complete Section 2 on its behalf. A staffing agency could therefore designate an appropriate person at a client location to perform that task.

But this arrangement requires more than a request to “check the worker's ID.” The representative must follow the applicable Form I-9 instructions, examine acceptable documents under the authorized process, and complete the employer review section.

The staffing agency remains responsible for violations connected with its form or verification process, including errors made by its representative.

Before using client personnel, establish:

• Who is authorized to act for the agency.
• Which inspection procedure applies.
• How the representative receives instructions and returns the completed form securely.
• Who reviews the form for omissions or inconsistencies.
• How questions and corrections reach the agency's compliance team.

The worker must be allowed to choose from the acceptable document options. Neither the agency nor the representative should demand a particular document because it is easier to process.

What happens when a temporary worker becomes a direct hire?

A temp-to-hire conversion generally starts a new employment relationship with the client. The client should complete its own Form I-9 using the employee's start date for direct employment—not the earlier date the person began an agency assignment.

For example, an agency employee may work at a distribution center for several months before accepting an offer from the center's operator. The agency's I-9 covers the agency employment relationship. It ordinarily does not replace the operator's obligation when the individual joins its workforce.

A practical conversion checklist should include:

1. Confirm the transition date. Align HR, payroll, the manager, and the agency on when direct employment begins.
2. Launch new-hire verification. Do not mark the client's I-9 complete merely because the worker already has building access.
3. Follow normal document-choice rules. Do not require the employee to present the same documents used with the agency.
4. Evaluate E-Verify requirements. If the client must create a case under its applicable participation rules, the agency's earlier case does not substitute for the client's process.

If the person previously worked directly for the client, existing-form and rehire rules may affect the workflow. Review those facts separately rather than treating every conversion identically.

Does moving between client locations require another I-9?

A change in assignment or worksite does not, by itself, require a new Form I-9 when the employee continues working for the same staffing agency.

The agency should distinguish an assignment change from an actual termination followed by rehire. That distinction affects whether it follows continuing-employment procedures or evaluates the rules for rehires.

Maintain records that clearly identify the employing entity, employment start date, assignment dates, and any actual separation. Otherwise, scheduling changes can be mistaken for employment events, creating unnecessary duplicate forms or missed obligations.

Build a clear agency-client handoff

For each staffing relationship, assign one owner on each side to resolve verification questions. Procurement, site managers, and payroll should know where to send issues rather than making their own document requests.

Use a written responsibility matrix covering the employing entity, I-9 completion, authorized representatives, E-Verify participation where applicable, record retention, and direct-hire conversions. Avoid routinely circulating identity documents simply to demonstrate that a process occurred; establish appropriate oversight and secure handling instead.

Trak Services' Clear I-9 service supports Form I-9 verification and E-Verify processes. Before changing a workflow, consult current USCIS Form I-9 instructions and applicable E-Verify guidance. This article provides practical information, not legal advice.

Need help clarifying verification responsibilities across staffing placements and direct hires? Contact Trak Services to discuss your I-9 workflow.