Replacement hiring is driving UK recruitment: how to break the churn cycle

A lot of hiring plans still read like expansion. New teams. New capability. New headcount.

But the day-to-day reality for most recruitment teams feels different: you’re refilling roles that already exist. When someone leaves, the work doesn’t stop and the vacancy goes live again.

This pattern shows up clearly in our latest Jobtrain Talent Insights Report (Q1 2026). We analysed 20,000 vacancies across 18 sectors and gathered 12,500 UK jobseeker survey responses.

Across the dataset, 78% of recruitment is driven by replacement roles due to resignations/attrition, while only 20% is linked to genuine new roles or growth.

If most hiring is replacement, then the biggest driver of recruitment performance sits upstream of the vacancy: why people leave, and what happens when they join.

The churn loop TA teams get stuck in

Replacement hiring creates its own momentum:

• The same roles reappear every few months
• Managers lose patience with process (“just get someone in the chair”)
• Recruiters spend more time firefighting than improving quality
• Employer brand takes a hit because candidates notice the pattern

It’s rarely one dramatic exit. It’s lots of “small” exits - and the total cost becomes enormous once you add up lost productivity, repeated onboarding and constant vacancy cover. It also impacts the team culture and morale.

Why this bites harder in 2026

In a red-hot market, organisations can sometimes outrun churn with volume: more spend, more advertising, more agencies, more signing-on incentives.

In a more cautious and cooling market, that approach is far less forgiving. You still need to hire, but you’re doing it in a climate where leadership expects tighter cost control and clearer ROI. Replacement hiring is where those two pressures collide: the spending doesn’t stop, but it’s hard to show progress if you’re refilling the same chair over and over.

The report’s leadership takeaway lands on this point: organisations that do well in 2026 will hire with intent, reward with credibility and develop with purpose.
Read through the lens of replacement hiring, it’s a call to stop treating recruitment as the only lever.

Internal movement is still the missed opportunity

When replacement hires are dominating, internal mobility should be the lever to pull. Yet most organisations still rely overwhelmingly on external hiring as the only option.

In our dataset, 91% of hires are external and 8% are internal.

That gap matters. Internal hires can reduce time-to-fill, stabilise teams and strengthen retention because people can see a future without having to leave to progress. Internal mobility is not a minor factor, by the way: in our jobseeker survey, career progression is the biggest reason people start searching for a new job.

If people leave to move forward and the organisation mostly hires externally, it’s easy to see how the churn loop keeps going round and round.

Three changes that reduce replacement hiring without a big "transformation programme"

You don’t need a two-year roadmap to start making changes. Three practical steps that will help you start moving things in the right direction:

1) Treat churn hotspots like critical vacancies

Most organisations have patterns: the same roles in the same location, or the same team, repeatedly. Name them. Track them. Then prioritise them in the same way you would a hard-to-fill role, because they are effectively hard-to-fill (you’re filling them over and over again).

2) Put the first 90 days under a microscope

Replacement hiring often looks like a recruitment issue until you look closely at early tenure. If someone leaves in the first three months, it’s rarely because they didn’t see enough job adverts. It’s usually the reality of the role, lack of support, workload, scheduling or just a mismatch between what was promised and what turned up.

Download the report for more and why our report flags onboarding and retention as areas to improve to reduce repeat hiring.

3) Build internal routes for the roles you refill most

You don’t need internal mobility for every job to make a difference. Start with the roles that drive the most repeat recruitment, then create simple routes: shadowing, step-up opportunities, short capability “bridges” and clearer internal comms about openings.

The real question for 2026: are you recruiting, or just replacing?

If 78% of your hiring is replacement, recruitment success is more than applicants or better ads. It’s about whether people are staying, settling and progressing.

That’s the hiring story we’re seeing across the market - and it’s only one part of the wider picture in the full report.

Download the Jobtrain Talent Insights Report (Q1 2026) below for the sector detail, the candidate insights and “what to do next” recommendations.