What it means
Agencies operate under two broad commercial models. Contingency recruitment pays the agency only if a candidate is actually hired, which suits volume and mid-level roles.
Retained search charges an upfront instalment plus staged payments, and is used for senior or hard-to-fill positions where the agency needs certainty before committing time. These fees matter because they are a genuine cost of filling a role that rarely appears anywhere in the salary budget.
A single senior placement can cost more than a fifth of that role's annual pay, and the whole amount lands in one month. Finance teams that forecast headcount growth without a recruitment cost assumption are routinely caught out.
Permanent fees are quoted as a percentage of first-year base salary, commonly between 15% and 25%, rising higher for executive search. The contract wording matters more than people expect: some agreements define salary as base pay only, others include guaranteed bonus, sign-on payments and car allowances.
Widening that definition can add thousands to the invoice without any change to the headline percentage. Most agreements include a guarantee period, often 60 to 120 days, during which a departing hire triggers a refund or a free replacement search.
Temporary staffing works differently, because the agency employs and pays the worker and bills you a higher rate, keeping the difference to cover employment taxes, insurance and margin. Converting a temporary worker to a permanent employee usually triggers a separate conversion fee that tapers the longer the person has been on assignment.
In practice
Real-world examples.
Example
A software firm engages a contingency agency to fill a regional sales director role paying $120,000 base. The agreed fee of 18% produces an invoice of $21,600 when the candidate accepts. Finance books the amount as a recruitment expense in the month the new director starts.
Example
A hospital covers a winter staffing gap with agency nurses. The agency pays each nurse $32 an hour and bills the hospital $48 an hour, a 50% mark-up covering payroll taxes, insurance and profit. Across a 12-week cover at 40 hours a week, the extra $16 an hour adds $7,680 to the cost of a single nurse.
Example
A manufacturer takes on a temporary maintenance technician and decides after four months to employ the person directly. The staffing contract sets a conversion fee of 15% of annual salary, reduced by a quarter for each completed three months on assignment. On a $60,000 salary the headline fee of $9,000 falls by 25% to $6,750, because one full three-month block has elapsed.
Formula
Calculation
Permanent placement fee = agreed percentage x new hire's first-year base salary.
A logistics company hires an operations manager on a base salary of $90,000, and the agency contract sets the fee at 20% of first-year base salary. The invoice is $90,000 x 0.20 = $18,000, payable within 30 days of the start date.
The same contract carries a 90-day guarantee with a pro rata refund. The manager resigns on day 45, leaving 45 of the 90 guaranteed days unused, so the refund is $18,000 x (45 / 90) = $9,000. The company's net agency cost for the failed placement is $18,000 - $9,000 = $9,000.Case study
Seen in the real world.
Northbrook Instruments is a fictional mid-sized maker of laboratory equipment, used here purely as an illustrative example. In one financial year it hired eleven people through three different agencies and had budgeted nothing at all for the fees. The invoices totalled $214,000 against an insurable payroll of $5,350,000, roughly 4%, and left a visible hole in the operating expense line that nobody could explain to the board.
The finance director renegotiated everything. Two agencies moved from 22% to 17% in exchange for exclusivity on all engineering roles, and guarantee periods were extended from 60 days to 120 days with cash refunds rather than replacement-only terms. She also added a recruitment cost line to the hiring approval form, so every requisition carried an estimated agency fee before anyone signed it off.
The following year Northbrook made twelve hires at a gross agency cost of $158,000, and two early departures produced $21,000 of refunds that the old contracts would never have paid. Net recruitment cost fell to $137,000 despite one extra hire, and the number was forecast rather than discovered.
Watch out
Common mistakes.
- Treating the agency fee as a minor administrative charge rather than a material part of the true cost of filling a role.
- Signing a contract that defines first-year salary to include bonus and allowances without noticing that the fee rises with every one of them.
- Assuming the guarantee period always produces a cash refund, when many agreements only offer a free replacement search.
Questions
People also ask.
Is an employment agency fee negotiable?
Yes, the percentage, the guarantee length and the payment terms are all commonly negotiated, especially if you can offer exclusivity or a run of vacancies.
How should an agency fee be treated in the accounts?
It is normally expensed as a recruitment or professional services cost in the period the placement happens, rather than capitalised and spread over the employee's expected tenure.
Do temporary agency workers show up in my headcount?
Usually not, because they sit in a contractor or agency staff cost line rather than payroll, which is exactly why heavy agency use can hide the real size of a team.
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