Temp-to-Hire

This is the most underappreciated risk in temp-to-hire.

Temp-to-Hire – also called temp-to-perm or contract-to-hire – is a staffing arrangement in which a worker is placed by a staffing agency on a defined trial period, after which the employer may convert the worker to a permanent direct-hire role. Also called: temp-to-perm, contract-to-hire, try-before-you-hire.

How temp-to-hire works

1. Define the role and trial parameters. Job description, pay rate, bill rate (what the employer pays the agency), trial duration (hours or days), and conversion fee terms are agreed before placement.

1. Agency sources, screens, and places. The staffing agency recruits, screens, and presents candidates. The selected candidate begins work as a W-2 employee of the staffing agency.
2. Trial period runs. Worker performs the role under the client’s day-to-day direction. Staffing agency owns payroll, taxes, workers’ compensation, and benefits administration.
3. Performance is evaluated. Client conducts informal check-ins at 30, 60, and 90 days. Performance, fit, and team integration are assessed.
4. Conversion decision. If the fit is good, client extends a direct-hire offer. If not, the arrangement ends without the legal complexity of terminating an employee.
5. Conversion or end. On conversion, the worker moves to the client’s payroll and the agreed conversion fee is paid (or waived if the trial reached the no-fee threshold).

Temp-to-hire vs direct hire vs temporary staffing

Conversion fees: how the math works

The conversion fee is what the client pays the staffing agency to release the worker from the agency’s payroll. Two common structures:

Hours-based no-fee threshold

The agreement specifies a minimum number of hours after which conversion is free. The industry standard for skilled trades and professional roles is 500-600 hours (roughly 12-15 weeks of full-time work). Before the threshold, a prorated fee applies.

Example: Agreement specifies 600-hour no-fee threshold and a $9,600 placement-equivalent fee. Worker converts after 360 hours. Conversion fee = $9,600 x (1 – 360/600) = $9,600 x 0.40 = $3,840.

Time-based descending fee

Negotiate the structure before placement. Asking after placement removes your leverage entirely.

The co-employment and joint-employer risk

This is the most underappreciated risk in temp-to-hire. During the trial period, the staffing agency is the worker’s employer of record – but the client directs the day-to-day work. Under US DOL joint employer guidance and IRS worker classification rules, this can create joint-employer status, exposing the client to liability they didn’t expect.

Where joint-employer exposure shows up:

• Wage and hour. If the staffing agency underpays or misclassifies the worker, the client can be jointly liable under FLSA.
• Benefits eligibility. ACA employer-mandate hours can be counted across the joint-employer relationship, relevant for clients tracking eligibility thresholds.
• Workers’ compensation. Coverage responsibilities split between agency policy and client policy; gaps in some states create direct client liability.

Mitigations: Use only agencies with documented compliance and audited payroll. Maintain separation – agency owns hire, fire, pay, discipline during trial; client directs day-to-day work only. Add indemnification clauses in the staffing agreement.

When temp-to-hire is the right model

• Role where fit is uncertain. Cultural fit, technical depth, or new-team dynamic – temp-to-hire is a structured trial.
• Skilled trades and light industrial. High turnover risk if hired directly; lower if trialled. See our volume hiring guide for scale context.
• Headcount budget uncertainty. Trial period sits in OpEx (temp staffing cost) rather than headcount; useful when budget approval is delayed.
• Re-entry or career-change candidates. Temp-to-hire de-risks the hire for both sides.

When temp-to-hire is the wrong model:

• Executive and leadership roles. Leadership candidates won’t accept agency-of-record arrangements. Use direct hire or retained search.
• Specialised roles where market is competitive. The best candidates won’t take temp arrangements when direct offers are available.
• When you intend to convert regardless. If conversion is a foregone conclusion, you’re paying the staffing markup for nothing.

Common pitfalls

• No defined conversion criteria. If “we’ll see how it goes” is the only criterion, the conversion conversation gets harder. Define performance and fit benchmarks at engagement start.
• Treating temp workers differently in day-to-day work. If temp workers don’t get training, feedback, or inclusion equal to direct hires, you’re rejecting them on a process flaw, not fit.
• Late conversion talks. Calendar the decision at day 75 of a 90-day trial. Don’t let it fall through the cracks.
• Single-vendor lock-in. Maintain 2-3 agency relationships to keep conversion fees competitive. Compare with contingency recruitment costs before committing.

Testlify skills assessments give clients objective pre-screening data on temp candidates before the trial even starts – reducing early exit rates on conversion – start your free trial.

Frequently asked questions