TL;DR: Staffing agencies bill temporary staff at the worker's pay rate plus a markup, and Robert Half's public contract with a Texas purchasing co-op sets that markup at 65% for administrative roles and 70% for IT. Direct hire placements most often cost 20% of first-year salary, and retained executive search about one-third of first-year cash pay.
A City of Galveston council agenda file shows what a staffing invoice looks like in practice: a data entry clerk billed at $27.00 an hour, with overtime at 1.5 times that rate. The clerk sees none of that number.
Behind that bill rate sits a lower pay rate and a markup that has to cover payroll taxes, insurance, recruiting and the agency's profit. The fee model you sign sets the size of that markup and what else lands on the invoice.
- 1Listed staffing firms kept between 16.7% and 39.0% of contract revenue as gross margin in 2025, from ManpowerGroup to Robert Half.
- 2Temp-to-hire fees shrink as hours build up, and at Robert Half's OfficeTeam they reach zero after 640 hours.
- 3US temporary help employment stood at 2.49 million in September 2026, down from 3.16 million at its March 2022 peak.









