A regime designed to stop fraud in labour supply chains, which in practice generates a steady stream of errors in both directions, and whose worst outcome, an input tax assessment, usually lands on the party that did not make the mistake.
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What the Reverse Charge Does
For specified construction services between VAT-registered businesses within the Construction Industry Scheme, the customer accounts for the VAT rather than the supplier. The supplier issues an invoice showing no VAT but stating that the reverse charge applies; the customer accounts for output tax and, subject to the usual rules, recovers the same amount as input tax.
It was introduced to remove the opportunity for missing trader fraud in construction labour supply chains. Its practical effect on legitimate businesses is a cash flow reduction for subcontractors, who no longer hold VAT between invoice and return, and a steady stream of errors in both directions.
When It Applies, and When It Does Not
All of the following must be true, and each is a point where the analysis goes wrong:
- The supply is of specified services within the CIS definition. The list broadly follows the CIS construction operations, with important exclusions.
- The supply is standard or reduced rated. Zero-rated supplies, such as much new-build residential work, are outside the charge.
- Both parties are VAT registered and the supply is reported under CIS.
- The customer is not an end user or intermediary supplier.
Mixed and Linked Supplies
- Where a contract includes both specified and non-specified services, the reverse charge generally applies to the whole supply if any element is within it. Splitting the invoice does not avoid this.
- Materials supplied with the services follow the services and go into the reverse charge.
- Supplies of staff or workers alone are treated differently from supplies of construction services, and employment business supplies are outside the charge. This distinction is heavily disputed.
The Two Error Patterns
VAT charged when the reverse charge applied
The supplier has accounted for output tax that was not due, and the customer has recovered input tax it was not entitled to recover, because there was no VAT properly chargeable on the supply. HMRC characteristically assesses the customer to recover the input tax, leaving the customer to seek a credit note from a supplier who may be uncooperative or no longer trading. This is the single most damaging outcome in this area, and it falls on the party that did not make the error.
Reverse charge applied when VAT should have been charged
The supplier has under-declared output tax. Where the customer has fully recovered, HMRC may accept that there is no net loss, but an assessment on the supplier remains legally available and interest runs.
Defending an Assessment
- Test the liability analysis first. Whether the services were specified, whether they were zero rated, and whether the customer was an end user are all questions of fact and law that HMRC officers get wrong.
- Produce the end user notification. If one exists, the supplier was right to charge VAT. If it does not, obtaining a retrospective written confirmation of the customer’s status may still assist evidentially.
- Push for a net-loss analysis. Where both parties are fully taxable and fully compliant, the Exchequer has lost nothing and that should inform both the assessment and the penalty.
- Credit notes and reissued invoices can correct the position between the parties; the question is whether HMRC will accept an adjustment rather than assess.
- Penalties. Reverse charge errors in the early years of a genuinely complicated regime are the paradigm of careless rather than deliberate behaviour. Argue the category, then suspension.
- Time limits and best judgment apply as they do to any VAT assessment: see Van Boeckel.
Practitioner Application
- Get end user notifications in writing and on file for every customer claiming that status. Without the notification the status does not apply.
- Check the VAT liability of the work before the reverse charge question, because zero-rated work is outside it entirely.
- Do not split contracts to isolate non-specified elements; the whole supply follows the specified element.
- Where a supplier has charged VAT wrongly, act quickly on credit notes, because the customer’s exposure survives the supplier’s disappearance.
- Review CIS and VAT together. The regimes interlock, and a CIS status problem frequently surfaces a VAT one.
Frequently Asked Questions
When does the construction reverse charge apply?
All of the following must be true: the supply is of specified services within the CIS definition; it is standard or reduced rated, so zero-rated new-build residential work is outside it; both parties are VAT registered and the supply is reported under CIS; and the customer is not an end user or intermediary supplier. Each of those is a point where the analysis commonly goes wrong.
What is the end user rule?
An end user is broadly a customer who does not make onward supplies of construction services, such as a property owner having work done for itself. End users are outside the reverse charge, so the supplier charges VAT normally, but only if the customer notifies the supplier in writing. A supplier who assumes end user status without written confirmation and charges VAT has accounted for tax that was never due.
What happens if VAT was charged when the reverse charge applied?
The supplier accounted for output tax that was not due and the customer recovered input tax it was not entitled to, because no VAT was properly chargeable. HMRC characteristically assesses the customer to recover the input tax, leaving it to seek a credit note from a supplier who may be uncooperative or gone. The assessment falls on the party that did not make the error.
Can a contract be split to avoid the reverse charge?
No. Where a contract includes both specified and non-specified services the reverse charge generally applies to the whole supply if any element is within it, and splitting the invoice does not change that. Materials supplied with the services follow the services into the charge.
Is there an argument where nobody lost any tax?
Yes, and it should be run. Where both parties are fully taxable and fully compliant, the Exchequer has lost nothing on the transaction, and that should inform both the assessment decision and the penalty. It does not remove HMRC's legal power to assess, but it is a strong practical argument on quantum and behaviour.