In recent years, HMRC has sharpened its focus on fraud in the construction industry, with a particular spotlight on the Labour Supply market. This occurs when contractors unknowingly hire labour from agencies or intermediaries who fail to account for VAT or Construction Industry Scheme (CIS) deductions. The result? HMRC passes the liability back up the chain, often leaving the main contractor with eye-watering bills, penalties, and interest charges.
While robust due diligence and regular compliance checks are critical, one of the most effective – yet often overlooked – strategies is staff training.
Why Contractors End Up Liable
Andy McKenna, former HMRC investigator and now part of DSC Metropolitan’s advisory team, explains:
“Contractors are often surprised to find themselves liable even when they’ve paid invoices in good faith. The issue is not whether the labour was supplied – it’s whether the contract for that labour stands up to scrutiny and that tax was correctly accounted for further down the chain. If it wasn’t, HMRC can and will make the contractor pick up the tab.”
The financial fallout can be devastating, with businesses losing hundreds of thousands of pounds through no direct fault of their own.
Where Training Makes the Difference
Most cases of labour supply fraud could have been avoided with better awareness among staff. From finance teams to HR and procurement, employees play a crucial role in spotting red flags before HMRC gets involved.
Training focuses on:
- Identifying risks: Knowing the signs of non-compliant labour supply agencies.
- Understanding HMRC’s expectations: What evidence contractors must keep on file to show they have and continue to exercise due diligence.
- Implementing controls: Building practical steps into onboarding, service contract, and procurement processes.
- Reacting effectively: What to do if suspicions arise about a supplier’s compliance.
Case Study: How Training Could Have Helped
A regional contractor hired a new labour supply agency to meet deadlines. Everything looked normal on the surface: the workers turned up, the invoices matched, and payments went out on time. Six months later, HMRC launched an enquiry after the agency hadn’t submitted VAT or CIS returns. The contractor was left with a £500,000 liability – enough to wipe out annual profits.
Had the procurement team been trained to request and review VAT and CIS compliance documents, they could have avoided engaging the non-compliant supplier altogether.
Building a Culture of Prevention
Training isn’t just about ticking a compliance box. It’s about embedding a culture of vigilance across the business. By equipping staff at every level with practical tools and knowledge, companies can ensure risks are spotted and escalated early.
Andy McKenna adds:
“HMRC isn’t interested in excuses. They want to see evidence that you’ve taken reasonable steps to ensure compliance. Training and then implementation of that awareness is the best way to demonstrate that your business has the right processes in place.”
How DSC Metropolitan Can Help
At DSC Metropolitan, we offer tailored training programmes for construction businesses that address the unique risks of labour supply fraud and other HMRC enforcement areas. Our sessions cover:
- Practical compliance checklists
- Real-world case studies of enforcement
- How to document due diligence to HMRC’s standards
- Scenario-based learning for finance, HR, and procurement staff
Training can be delivered in-person or online, ensuring flexibility for busy contractors and their teams.
Conclusion
The supply chain compliance arena is a growing risk that can leave even well-run businesses facing crippling liabilities. But with the right knowledge and processes in place, contractors can protect themselves.
Training is not an optional extra – it is one of the most effective tools to keep your business compliant and shielded from HMRC’s reach.
If your business relies on subcontracted labour, now is the time to act.
Contact DSC Metropolitan to find out more about our specialist training for the construction sector.
