Most recruitment agencies track placements, conversion rates, and fees. But how many know what happens to every candidate after they have been introduced to a client?
A candidate can be submitted, interviewed, shortlisted, and even selected… only for the client to hire them outside the recruiter’s process.
No invoice is raised. No placement appears in your CRM. No fee is collected.
This is backdoor hiring, and it can create a significant but largely invisible source of lost revenue for recruitment agencies.
The Hidden Revenue Leak in Recruitment
Recruitment agencies work hard to generate placements. Consultants source candidates, conduct interviews, manage client relationships, negotiate offers, and guide candidates through the hiring process.
But once a candidate has been introduced, visibility can quickly disappear.
A client may hire that candidate weeks or months later, through another route, another entity, or even a different hiring process.
If the agency doesn’t know about the engagement, the introduction fee may never be invoiced.
The problem isn’t necessarily the number of backdoor hires.
It’s the number you never discover.
What Is a Backdoor Hire?
A backdoor hire occurs when:
- A recruiter introduces a candidate to a client.
- The client later hires that candidate outside the recruiter’s process.
- No placement fee is paid to the recruiting agency.
The circumstances can vary.
The client might hire the candidate shortly after the original introduction, wait several months, engage them as a contractor, use another agency, or employ them through another company within the group.
In some cases, the client may dispute that the recruiter was responsible for the introduction at all.
Other times, the agency simply never knows the candidate was hired.
Why Do Backdoor Hires Happen?
Recruitment fees can represent a significant cost for employers, often calculated as a percentage of the candidate’s salary.
With fees commonly representing 15–30% of salary, some clients may look for ways to avoid paying an introduction fee.
This can happen deliberately, but it doesn’t always require a clear attempt to evade payment.
Candidates can move between roles, departments, subsidiaries, contractors, and recruitment channels. A hiring decision that appears unrelated to the original placement can sometimes still result from the recruiter’s introduction.
That is why understanding the candidate journey is so important.
The Real Problem: Lack of Visibility
Most recruitment systems are designed to track activity before and during a placement.
They record:
- Candidate submissions
- Interviews
- Vacancies
- Offers
- Placements
- Invoices
- Fees
But what happens after a candidate has been introduced?
That information is much harder to track.
A candidate might update their LinkedIn profile months later. A job advert might reveal a new employer. A company announcement might mention a new appointment.
Unless someone happens to find that information, the backdoor hire can remain completely invisible.
And what isn’t visible can’t easily be measured, investigated, or recovered.
How Much Could Backdoor Hiring Be Costing You?
Even a small number of missed placements can have a substantial financial impact.
For example:
2 missed placements at £20,000 = £40,000 in lost revenue.
5 missed placements at £20,000 = £100,000 in lost revenue.
The important point is that the underlying work has already been completed.
Your consultants have sourced the candidate.
Your agency has invested time in screening and assessing them.
The candidate has been introduced to the client.
Yet the expected revenue never arrives.
For a recruitment agency operating on tight margins, these missed fees can quickly add up.
Why Backdoor Hiring Matters More Than Ever
Recruitment is becoming increasingly competitive.
Hiring cycles can be longer, candidate searches can require more work, and consultants are often investing more time to secure each successful placement.
That makes every potential fee more valuable.
Winning new business is only part of protecting recruitment revenue.
Agencies also need to understand what happens to the candidates they have already introduced.
The more work required to make a placement, the more important it becomes to protect the revenue attached to that work.
How Can Recruiters Find Backdoor Hires?
Historically, identifying backdoor hires has relied heavily on manual checks.
Consultants might search LinkedIn, monitor company websites, contact candidates, or revisit old submissions.
But checking hundreds or thousands of candidates manually isn’t realistic for most recruitment agencies.
This is where HireChecker can provide greater visibility.
How HireChecker Works
With nearly 20 years of experience working with recruiters, Sterling Debt Recovery have developed HireChecker to help agencies identify potential backdoor hires that manual checks can easily miss.
The platform combines automation with human validation, providing recruitment agencies with a scalable way to investigate candidate outcomes.
HireChecker helps identify potential backdoor hires by matching candidate data against employment signals from multiple sources.
The process includes:
- Importing candidate data
- Scanning multiple data sources
- Analysing deeper employment signals
- Identifying potential matches
- Flagging likely backdoor hires for review
This allows agencies to investigate potential infringements without relying entirely on chance discoveries.
Built for Recruitment Agencies
HireChecker is designed around the realities of recruitment.
Agencies may deal with thousands of candidates across different clients, industries, locations, and countries. Tracking every candidate manually after an introduction simply isn’t practical.
HireChecker provides a more scalable approach to identifying potential employment outcomes.
The system is GDPR-compliant and uses encrypted systems to protect sensitive information.
It processes only the information necessary to identify potential infringements, while its global reach makes it particularly useful for recruitment agencies working across multiple countries and industries.
What Happens When You Find a Backdoor Hire?
Identifying a potential backdoor hire is only the beginning.
Once a recruitment agency has evidence that a candidate has been engaged, the next step is to assess the circumstances against the agency’s terms of business and determine whether an introduction fee is due.
Depending on the circumstances, the agency may be able to raise an invoice or begin discussions with the client to recover the fee.
This is where visibility becomes commercially valuable.
A backdoor hire that would previously have remained undiscovered can become a recoverable revenue opportunity.
Why Visibility Matters
Backdoor hiring affects revenue and can also undermine the commercial relationship between a recruitment agency and its clients.
When agencies have better visibility over candidate outcomes, they can make more informed decisions about their clients, contracts, and recruitment processes.
Greater visibility can help agencies:
- Protect revenue
- Identify missed placements
- Improve accountability
- Strengthen commercial control
- Recover fees that may otherwise be lost
- Understand what happens after candidate introduction
The objective is to make sure the value created by your recruitment consultants doesn’t disappear unnoticed.
Could You Be Missing Placements Right Now?
Backdoor hiring is difficult to measure because the missing revenue doesn’t appear in your accounts.
You don’t see an unpaid invoice.
You don’t see an overdue balance.
You simply never know the placement happened.
That makes it one of the most difficult forms of revenue leakage for recruitment agencies to identify.
If you don’t know where your candidates end up, how can you know you’re being paid for every introduction?
HireChecker gives recruitment agencies the visibility they need to investigate what happens after candidate introduction and identify potential backdoor hires.
The result is a more informed approach to protecting the revenue your agency has already earned.
Don’t Just Take Our Word for It
Recruitment agencies are already using HireChecker to improve visibility over candidate outcomes and identify potential missed placements.
Read our testimonials to hear directly from other recruiters.
Find the Revenue You’re Missing
Your recruitment agency has already invested the time, expertise, and resources into finding the right candidates.
Don’t let a lack of visibility mean the resulting revenue disappears.
HireChecker can help you identify potential backdoor hires, investigate candidate outcomes, and protect the fees you’ve worked to earn.
Get in touch through our contact form or call 020 7100 5978 to find out more.
We’re here to help you get paid.
Need straight answers on a sensitive case?
Contact our experts now:
Graeme Murdoch
Debt Recovery Manager & HireChecker Expert
Anthony Rumbold
Head of Sales
