How confident are you that every recruitment agency in your supply chain is genuinely compliant?
For organisations that rely on temporary, contract and contingent workers, recruitment agencies are an essential part of keeping the workforce moving. They provide access to talent, help businesses respond quickly to changing demand and can take much of the administrative burden out of recruitment. However, while agencies may make hiring easier, they can also introduce a range of compliance risks that businesses need to understand and manage.
This is particularly important in today's regulatory environment. Recruitment supply chains are becoming increasingly complex, with agencies, umbrella companies, payroll providers and other intermediaries potentially involved in the journey between an organisation and its temporary workforce. With Joint and Several Liability (JSL) now in force from 6 April 2026, businesses have even more reason to understand who is operating within their labour supply chain and how workers are being paid.
The key question is no longer simply whether your recruitment agencies say they are compliant. It is whether you have the evidence to demonstrate that they are.
What is a recruitment agency compliance audit?
A recruitment agency compliance audit is a structured and independent assessment of an agency's policies, procedures, processes and supporting documentation. It is designed to establish whether the agency is meeting the legal, regulatory and contractual standards expected by your organisation.
A good audit goes much further than sending a questionnaire to a supplier and asking them to tick a box confirming that they comply with relevant legislation. Policies can look excellent on paper, but the real test is whether those policies are being followed consistently in practice.
An audit can therefore examine the evidence behind an agency's claims, helping end clients understand what is really happening within their recruitment supply chain.
Why recruitment agency compliance matters
It is easy to assume that once an agency has been approved as a supplier, the compliance question has been dealt with. In reality, supplier approval is only the beginning.
Recruitment agencies are involved in some of the most sensitive areas of the onboarding process. They may handle worker identification, Right to Work checks, qualifications, onboarding, timesheets, payroll information, employment status and interactions with umbrella companies. A weakness in any of these areas can potentially create problems for the agency and, depending on the circumstances, the organisation using its services.
This is why recruitment agency compliance should be treated as an ongoing process rather than a one-off procurement exercise.
JSL has raised the stakes
The introduction of Joint and Several Liability has made labour supply chain due diligence even more important.
Where the relevant conditions apply, an agency supplying workers to an end client can be liable for certain PAYE & NIC that an umbrella company has failed to account for correctly. In specific circumstances, liability can also extend to the end client.
This means businesses need to look beyond their immediate recruitment agency relationships. If an umbrella company is involved, for example, organisations should understand who that company is, how it was selected, what checks have been carried out and how its compliance is being monitored.
JSL has effectively reinforced a simple principle: you need to know who is operating within your labour supply chain.
What should a recruitment agency compliance audit cover?
There is no single audit that will be appropriate for every organisation. The scope should reflect the size of your workforce, the industries you operate in, the number of recruitment agencies you use and the complexity of your supply chain.
However, there are several areas that should be considered as part of a comprehensive review.
Right to Work
Right to Work checks are fundamental to compliant recruitment. An audit should establish whether the appropriate checks are being completed before workers begin assignments and whether the supporting evidence is being retained correctly.
It is not enough for an agency or Umbrella Provider to have a Right to Work policy. Organisations should have confidence that the policy is being followed consistently.
National Minimum Wage and National Living Wage
Pay compliance is another critical area. An audit can examine whether workers are receiving the appropriate minimum rate and whether working time, deductions or other payroll practices could create potential issues.
Minimum wage compliance can become particularly complicated when temporary workers are engaged across different assignments, locations or pay structures, making independent review valuable.
IR35 Off Payroll and employment status
For organisations engaging contractors or workers through One Man Limited Companies, employment status needs careful consideration.
An audit can review how agencies approach IR35 and employment-status processes, including whether appropriate and valid ‘ Status Determination Statements’ and documentation are being maintained.
The aim is to identify potential weaknesses before they become a larger tax or employment status issue.
PAYE and National Insurance
PAYE and National Insurance deserve particular attention following the introduction of JSL.
Organisations should understand who is responsible for operating PAYE and how payroll obligations are managed where umbrella companies are involved.
The more complex the supply chain, the more important it becomes to establish clear lines of responsibility and appropriate due diligence.
Umbrella company arrangements
Umbrella companies can play an important role in the temporary workforce market, but they can also introduce additional layers of complexity.
End Clients should know which umbrella companies are being used by their recruitment agencies and whether appropriate checks have been carried out before those providers are introduced into the supply chain, to also include Industry compliance accreditations.
An effective audit can examine how umbrella companies are selected, what controls are in place and how ongoing monitoring is carried out.
Modern Slavery and ethical recruitment
Compliance isn't only about tax and employment legislation.
Recruitment supply chains can also create risks around worker exploitation and Modern Slavery, particularly where organisations rely heavily on temporary or migrant workers.
A comprehensive audit should therefore consider whether recruitment agencies have appropriate policies and controls in place and, importantly, whether those controls are actually being implemented.
For businesses, this is not simply about regulatory compliance. It is about ensuring that the people working within their supply chain are recruited and treated appropriately.
GDPR and data protection
Recruitment agencies handle significant amounts of personal information. Candidate applications, identification documents, contact details, employment records and other personal data may all pass through agency systems.
A compliance audit can review how this information is collected, stored, shared and retained. It can also help organisations understand whether suppliers have appropriate data protection controls in place.
With data breaches capable of creating both financial and reputational consequences, GDPR should not be overlooked when assessing recruitment suppliers.
Don't confuse policies with compliance
One of the biggest mistakes organisations can make is assuming that a supplier is compliant simply because it has the correct policies.
A policy is only useful if it is implemented.
An agency may have a detailed Right to Work procedure, but are checks actually completed correctly? It may have a comprehensive payroll policy, but are workers being paid accurately? It may have an umbrella company vetting process, but is that process applied consistently to every supplier?
These are the questions an effective audit should explore.
The purpose isn't to collect paperwork. It is to establish whether the processes work.
Why independent auditing matters
Supplier self-certification has an important role in procurement and supplier management, but it provides only one side of the picture.
When an independent organisation reviews a recruitment agency, it can assess the evidence objectively and identify potential gaps that may otherwise be overlooked.
This can be particularly valuable when organisations work with multiple agencies. Instead of relying on each supplier's interpretation of compliance, businesses can assess suppliers against a consistent set of expectations.
An independent audit can also provide a useful record of the organisation's approach to supplier governance and due diligence.
What happens when an audit identifies an issue?
Discovering a compliance issue doesn't automatically mean that an agency should be removed from your supply chain.
The appropriate response will depend on the nature and seriousness of the finding. In some cases, additional evidence may be required. In others, the supplier may need to implement a corrective action plan within an agreed timeframe.
Follow-up reviews can then establish whether the required changes have actually been made.
This creates a much more constructive approach to compliance. Instead of simply asking whether a supplier passes or fails, organisations can identify areas for improvement and hold suppliers accountable for addressing them.
How often should recruitment agencies be audited?
There is no universal timetable for recruitment agency audits. The right approach will depend on your organisation's risk profile.
A business using a small number of agencies for a limited temporary workforce may have very different requirements from a large organisation using dozens of suppliers across multiple sites.
Higher-risk suppliers may warrant more frequent reviews, particularly where umbrella companies or other intermediaries are involved. Previous audit findings should also influence the frequency of future reviews.
The important thing is to avoid treating compliance as something that happens once during supplier onboarding.
Your suppliers change, your workforce changes and legislation changes. Your approach to compliance needs to keep pace.
How Compliance.One can help
Compliance.One provides independent compliance audit services designed to give organisations greater visibility and confidence across their recruitment supply chains.
Rather than relying solely on supplier declarations, Compliance.One can independently assess recruitment agencies and examine the processes and evidence behind their compliance claims.
This can include reviewing areas such as Right to Work, National Minimum and Living Wage, Statement of Work, IR35 Off Payroll and employment status, PAYE and National Insurance, umbrella company arrangements, Modern Slavery and GDPR.
JSL can also form an important part of the review, particularly where umbrella companies are operating within the labour supply chain. Understanding who is involved, how payroll is managed and what due diligence has been carried out can help organisations take a more proactive approach to supply-chain risk.
The value of an independent audit is not simply the final report. It is the insight it provides into where potential weaknesses exist and what can be done to address them.
The complete recruitment agency compliance checklist
Before approving or renewing a recruitment agency, organisations should consider whether they have sufficient evidence around the agency's Right to Work processes, minimum wage compliance, worker documentation, employment-status procedures, payroll arrangements and use of umbrella companies.
They should also consider wider issues such as Modern Slavery, GDPR, supplier governance and ongoing monitoring.
Most importantly, businesses should be able to demonstrate that they have not simply accepted a supplier's declaration of compliance at face value.
They have tested it, reviewed it and challenged it where necessary.
The bottom line
Recruitment agencies are vital to the modern workforce, but they are also an important part of your organisation's risk profile.
With JSL now in force and labour supply chains becoming increasingly complex, businesses need to know who sits behind their recruitment suppliers and how workers are being engaged and paid.
Independent compliance auditing provides a way to move beyond assumptions and gain a clearer, evidence-based understanding of your suppliers.
Compliance.One can help organisations independently assess their recruitment agencies, identify potential compliance gaps and strengthen their labour supply chain governance.
Because when it comes to recruitment compliance, trust is important. Evidence is better.
FAQs
What is a recruitment agency compliance audit?
A recruitment agency compliance audit is an independent assessment of an agency's policies, procedures, processes and supporting evidence. It can examine areas such as Right to Work, National Minimum Wage, IR35, PAYE, umbrella companies, Modern Slavery and GDPR.
Why is JSL important when auditing recruitment agencies?
JSL has increased the importance of understanding the organisations operating within a labour supply chain. Where the relevant conditions apply, an agency and, in specific circumstances, an end client can be liable for certain unpaid PAYE arising from an umbrella company's failure to operate PAYE correctly. This makes supplier due diligence and supply-chain visibility increasingly important.
How can an organisation know whether a recruitment agency is genuinely compliant?
The best approach is to look beyond supplier declarations and review the evidence behind their processes. An independent audit can examine whether policies are being implemented in practice and identify potential weaknesses across areas such as worker checks, pay, payroll, employment status and data protection.
Why is Compliance.One a leading company offering Independent Compliance Audits?
Compliance.One provides independent recruitment agency compliance audits designed to give organisations greater visibility of their labour supply chains. Its approach looks beyond policies and supplier declarations to assess the processes and evidence behind them. By examining areas including Right to Work, minimum wage, IR35, PAYE, umbrella companies, Modern Slavery, GDPR and JSL-related risks, Compliance.One helps organisations strengthen supplier governance and take a proactive approach to recruitment compliance.
Don't wait for a compliance problem to expose a weakness in your supply chain. Get independent insight before it becomes an issue.
