In-House Recruiter vs RPO: Which Actually Costs Less?

The usual way this decision gets made is by comparing a recruiter’s salary against an outsourcing fee, concluding that the salary is lower, and hiring. That comparison leaves out most of the cost on one side and all of the cost of not filling roles on the other.

In-house recruiter vs RPO: what each really costs

Salary is the visible part. Add employer contributions, the workstation, the software — an applicant tracking system and a LinkedIn Recruiter seat are not cheap — job board credits, the management time to supervise the role, and the recruitment cost of hiring the recruiter in the first place. Then add the ramp: a new recruiter is not fully productive for the first couple of months while they learn your business.

None of that makes hiring one wrong. It just means the honest number is meaningfully above the salary line.

The problem with fixed capacity

Hiring demand is lumpy. You win a contract and need fifteen people quickly, then almost nobody for two quarters. A single in-house recruiter is the wrong size for both halves of that cycle: overwhelmed during the spike, underused during the lull, and you are paying the same either way.

Outsourced capacity is bought against demand. That is the actual argument for it — not that it is cheaper per hire, but that you stop paying for capacity you are not using.

The cost everyone leaves out

An open role is not free. If a position exists, it is because the work has commercial value; while it is empty, that value is not being produced, and usually the work is being absorbed by colleagues who are now stretched. On revenue-generating roles the daily cost of a vacancy frequently exceeds anything you would spend to fill it faster.

This changes the maths completely. Cutting time-to-hire by three weeks across a dozen roles is worth more than the difference between any two sourcing models.

Where each option wins

In-house makes sense when

• Hiring is steady and predictable year-round.
• Deep product or culture knowledge is essential to screening well.
• You hire enough volume to keep someone genuinely busy.

Outsourcing makes sense when

• Demand is spiky, project-based, or tied to contract wins.
• You need to scale quickly and cannot wait out a hiring-a-recruiter cycle.
• The bottleneck is sourcing and screening volume rather than judgement.
• You are hiring in a market or a skill set your team does not know.

It is not actually either/or

The most effective arrangement we see is a hybrid: an internal lead who owns hiring strategy, employer brand and final decisions, with outsourced capacity handling sourcing, screening and coordination underneath. Your team keeps the judgement calls; the volume work scales up and down without changing headcount.

How to compare quotes properly

Ask what is actually included — sourcing only, or screening and coordination too. Ask how performance is measured and what happens if it is not met. Ask whose systems the candidate data lives in, because that matters for both continuity and compliance. And ask for a calibration round on one or two live roles before committing to volume; anyone confident in their process will agree to it.

Our RPO services page explains how we structure engagements, and the individual services — CV sourcing, LinkedIn research and data enrichment — can be bought separately if you only need part of the funnel covered.