Umbrella companies have played a major role in the UK temporary labour market. They provide a way for workers to be employed, paid and administered outside the agency's own payroll. For some agencies, the arrangement has been convenient, but convenience does not always equal control.
As the regulatory environment changes, agencies need to understand whether their current supply chain gives them enough visibility over worker engagement, payroll deductions and compliance evidence.
The core risk
The agency may carry reputational, commercial or tax exposure without having full control over the payroll process.
An agency may know which umbrella companies are on its preferred supplier list. But does it have clear visibility of:
- how each worker is engaged;
- what deductions are made;
- whether PAYE is operated correctly;
- what the worker sees on the payslip;
- what has been reported to HMRC;
- whether the worker understands the arrangement;
- how issues are escalated;
- whether the audit trail is complete?
If the answer is unclear, the agency may be relying on trust rather than evidence.
Why this matters now
From April 2026, agencies using umbrella companies face a changed risk landscape. Where an umbrella company fails to account correctly for PAYE, the agency may be exposed to liability in a way that was not previously the practical norm.
It is no longer enough to ask "Is our umbrella supplier compliant?" Agencies now need to ask: "Can we evidence control across our supply chain?"
Common weak points in umbrella supply chains
- incomplete worker documentation;
- unclear status or engagement route decisions;
- weak supplier due diligence;
- fragmented payroll records;
- unclear payslip deductions;
- lack of audit trail;
- reliance on supplier portals;
- no routine exception reporting;
- poor worker query handling;
- limited internal ownership.
These gaps become urgent when there is a complaint, client review, HMRC query, supplier failure or acquisition due diligence process.
The reputational risk
Workers do not always distinguish between the agency and the umbrella company. If a worker is confused about deductions, payslips or pay rates, they may blame the agency even if the umbrella company produced the payslip. Clients may think the same way.
A poor worker payroll experience can damage worker trust, agency reputation, client confidence, redeployment rates, referral rates and internal operations.
The commercial risk
The agency may lose visibility of how margin is split, where fees are deducted, what the worker sees, how the assignment rate is explained, whether deductions are commercially defensible and whether the arrangement helps or harms retention.
What better control looks like
Better control does not mean doing everything manually in-house. It means having a structured operating approach with:
- defined responsibilities;
- clear worker records;
- documented engagement route decisions;
- visible payroll workflow;
- transparent deductions;
- reporting outputs;
- audit trails;
- exception management;
- accountable ownership.
This is the territory Kova is built for.
Final thought
Umbrella company risk is not just about bad actors. It is about whether the agency has enough control, visibility and evidence in a changing market. Agencies that review their setup early will be better placed to protect margin, strengthen worker trust and evidence compliance.