If you need outside help to keep up with hiring, someone in finance will ask why the fee is worth it. Figuring out how to justify recruiting agency cost comes down to one comparison: what outside recruiting costs against what it costs to do the work yourself, leave roles open or replace the wrong hires. Put real numbers on each side and the decision usually explains itself, in either direction.
How to justify recruiting agency cost in five steps
- Measure your current cost per hire.
- Put a number on the days your roles stay open.
- Price the in house alternative.
- Add the cost of bad hires and early turnover.
- Compare those numbers with the outside recruiting quote.
Each step below explains what to count and where the benchmarks come from. If you want the detail on how recruiting fees are built, our breakdown of what recruitment agencies charge for covers it. This article is about the business case.
Build the business case
1. Measure your current cost per hire
Start with what hiring costs you today. Cost per hire adds up internal costs (recruiter time, manager time, tools) and external costs (job ads, background checks, outside fees), then divides the total by the number of hires. According to SHRM’s 2025 benchmarking data, the cost per hire for nonexecutive roles is $1,200 at the median and $5,475 on average. Our guide to SHRM cost per hire walks through the formula.
Finance will trust your case more if it starts from your own number. A benchmark tells you whether that number is unusual.
2. Put a number on the days roles stay open
An empty seat doesn’t show up as a line item, so it’s the cost leadership tends to miss. The work still has to get done by someone, overtime can go up and customer facing roles can lose revenue while they sit empty. A simple way to estimate it is to divide the role’s annual pay by 250 working days and multiply by the days it stays open. Our guide to the cost of an open position explains the method.
You don’t pay that salary while the seat is empty, so you’re using daily pay as a rough stand-in for the output you lose, not as an accounting figure. Say so in your case. A conservative number finance can check is worth more than a big one they’ll question.
3. Price the in house alternative
The usual alternative to outside recruiting is hiring a recruiter. The Bureau of Labor Statistics puts the median pay for human resources specialists, the category that includes recruiters, at $75,940 as of May 2025. In private industry, benefits made up 30% of employer compensation costs in June 2026.
If benefits are 30% of total compensation, pay is the other 70%. Dividing $75,940 by 0.7 puts one in house recruiter at roughly $108,000 a year before tools. Our article on in house recruiter cost shows the full math and when that hire makes sense. That’s a fixed cost: you pay it in slow months too.
4. Add the cost of bad hires and early turnover
A hire who leaves in the first few months costs you twice: once to hire them and again to replace them. Gallup estimates that replacing a frontline employee costs about 40% of their salary, and replacing a leader or manager about 200%.
Look at how many of last year’s hires left early and multiply. If screening is where those hires went wrong, better screening is part of what you’re paying for. Our guides to the cost of a bad hire and why 90 day turnover starts before day one go deeper.
5. Compare those numbers with the quote
Now line it all up. Here’s a hypothetical example. Say you plan 40 frontline hires next year for a role that pays $40,000.
- In house option: one recruiter at roughly $108,000 a year before tools, or about $2,700 per hire across 40 hires.
- Open roles: using daily pay as a rough stand-in for the output you lose, $40,000 divided by 250 working days is $160 a day. If outside help fills each role 10 days faster, that’s $1,600 per hire, or $64,000 across 40 hires.
- Early turnover: at 40% of salary, each early replacement costs about $16,000. If better screening means three fewer early replacements, that’s $48,000.
In this example, the in house recruiter you don’t hire, the shorter vacancies and the fewer replacements add up to $220,000. An outside recruiting quote below that number pays for itself on these assumptions. One above it needs another reason, like filling roles faster when you open a new location.
The assumptions matter more than the total. Use your own time to fill and turnover numbers, and show finance where each one came from.
How each option charges
Finance will also want to know what the money buys. The pricing model changes what you’re comparing.
| Option | How it’s usually priced | Who does the work |
|---|---|---|
| Staffing agency | A markup on the worker’s hourly pay, and often a fee to hire them permanently | The agency recruits and, according to the American Staffing Association, employs the workers it assigns |
| RPO | Set by contract and varies by provider | An outside provider takes on all or part of your recruitment process |
| Recruiting as a Service (RaaS) | Per hire or a monthly fee | The provider sources and screens candidates, and you hire directly |
| Recruiting software | Subscription or license, plus your team’s time | Your team |
For a recruiter’s view of how contingency fees work, read what one former agency recruiter never told clients.
When outside recruiting isn’t worth the cost
Sometimes the numbers say no, and your case is stronger if you say so first. Outside recruiting is harder to justify when:
- You hire a few people a year and referrals already fill most roles.
- The role is a one off and your team has time to run the search.
- Your in house team has capacity and early turnover is low.
- Your hiring pace is one that a single recruiter can handle all year, which is when a full time recruiter tends to pay off.
Our comparison of outsourced recruiting vs in house covers that decision in more detail.
A sample justification you can adapt
Finance doesn’t need a long deck. One page with the problem, the numbers and the risk is usually enough. Here’s a sample built on the example above. Swap in your own figures.
The problem: We plan 40 frontline hires next year. Open roles currently stay vacant for [your average] days, and [number] of last year’s hires left within 90 days.
What it costs today: Using daily pay as a rough stand-in for the output we lose, each open role costs about $160 a day, or [$160 × your average days open] per hire. Gallup estimates each frontline replacement costs about 40% of salary. For this role, that’s about $16,000.
The alternatives: Hiring a recruiter costs roughly $108,000 a year before tools, whether we hire 10 people or 40. Outside recruiting would cost [amount] for the same hires.
The case: If outside help shortens vacancies by 10 days and prevents three early replacements, it saves about $112,000 on top of the $108,000 recruiter we don’t hire. We’ll track time to fill and 90 day retention so we can check those assumptions after the first quarter.
The risk: If the numbers don’t hold, we can bring the work back in house. A recruiter hire is harder to undo.
How Workwolf® fits
Workwolf® sources candidates, filters them with AI, phone screens them with its recruiters and books the best fits into your calendar, so you only meet the finalists and make the hire. Workwolf® runs on its own AI engine, Packfinder. It screens and ranks every applicant against the profile of each client’s top performers, and it gets more precise with every placement.
Because you hire candidates directly, there’s no temp to perm conversion and no hourly markup on their wages. Clients get transparency into how candidates were sourced and scored. To see how the model works, read our guide to recruiting as a service.
FAQ
Is it worth using a recruitment agency?
It depends on your volume and how steady your hiring is. Outside recruiting is easiest to justify when you hire often, roles stay open long enough to hurt and early turnover is high. For a few hires a year, an internal process is usually enough.
What do recruiting agencies charge, including for direct hire?
It depends on the model. Staffing agencies usually charge a markup on the worker’s hourly pay, and often a fee to hire them permanently. Fees for direct hire vary by agency and role, so ask for the full fee schedule in writing before you compare quotes. Our guide to questions to ask a staffing agency covers what to check.
How much does it cost to have an in house recruiter?
Using the BLS median pay for human resources specialists ($75,940 in May 2025) and the private industry share of benefits (30% of compensation), one in house recruiter costs roughly $108,000 a year before tools.
What are the downsides of using a staffing agency?
Workers usually stay on the agency’s payroll, so you pay a markup for as long as they work for you, and often a fee to hire them permanently. You may also have less say in how candidates are screened. For temporary or seasonal work, that trade can still make sense.
Who pays recruiter fees?
When a company hires a recruiting agency, the company pays the fee. Candidates placed through an employer paid search shouldn’t be charged for the placement.
Make the case with your own numbers
The strongest justification is the one built on your own time to fill, turnover and hiring plan. Run your numbers through our hiring ROI calculator, then book a call to talk through how outside recruiting would fit your plan.
