Key takeaways

• The reverse charge applies when supplying CIS-registered contractors:
  The customer accounts for VAT, not you
• Scaffolding hire only (no labour) is excluded:
  If you only hire equipment without labour, normal VAT rules apply
• You stop collecting VAT on reverse charge sales:
  This changes your quarterly VAT cash position significantly
• You may move to a VAT repayment position:
  If your input VAT exceeds output VAT on remaining standard-rated sales
• Invoices must include specific wording:
  Failure to include the reverse charge notice is a compliance error

The VAT domestic reverse charge (DRC) for construction services came into force in March 2021 and fundamentally changed how VAT flows through the construction supply chain. For many scaffolding companies, the change was significant, and misunderstanding it has led to compliance errors, unexpected cash flow positions and HMRC attention.

This guide explains what the reverse charge is, which scaffolding services it applies to, how it affects your VAT returns and quarterly cash position, and the practical steps to manage it correctly.

What is the VAT domestic reverse charge?

Quick answer
The VAT domestic reverse charge is an anti-fraud measure that switches VAT accounting responsibility from the supplier to the customer in construction supply chains. The scaffolding company does not charge VAT on a reverse charge invoice. Instead, the main contractor accounts for the VAT themselves, both as output VAT owed and input VAT reclaimable.

In plain terms
Before the DRC: scaffolding company charges £10,000 + £2,000 VAT = £12,000. Main contractor pays £12,000. Scaffolding company remits £2,000 to HMRC.
After the DRC: scaffolding company charges £10,000 (no VAT shown). Main contractor pays £10,000. Main contractor accounts for the £2,000 VAT internally. Scaffolding company does not collect or remit the VAT.

The practical effect for the scaffolding company is that the £2,000 that previously flowed through the business (collected in October, remitted to HMRC in November) no longer appears at all. The main contractor handles the entire VAT transaction internally. This has no net tax effect for either party: the VAT is still paid to HMRC. But it significantly changes the cash flow position of the subcontractor.

Which scaffolding services does the reverse charge apply to?

The DRC applies when both of the following conditions are met: the supply is a standard or reduced-rated supply of construction services, and the customer is VAT-registered and registered for CIS (or required to be registered for CIS).

For scaffolding, this covers erecting, altering and dismantling scaffolding as part of construction services supplied to a CIS-registered main contractor or construction business.

When the reverse charge does NOT apply to scaffolding

Quick answer
The reverse charge does not apply to: scaffolding hire without labour (treated as goods hire, not construction services); supplies to end users who are not in the construction supply chain; and supplies to businesses that are VAT-registered but not CIS-registered and not required to be.

• Scaffolding hire only, no labour:
  Hiring equipment without providing the labour to erect or dismantle it is treated as a goods hire. Normal VAT rules apply to equipment hire. This is an important distinction for scaffolding companies that also operate a hire business.
• Supplies to end users:
  If your customer is the end user of the building (a homeowner having a property refurbished, or a business occupying the premises for its own use), normal VAT applies. The reverse charge is a supply chain mechanism, not a tax on end-user construction work.
• Non-CIS customers:
  If the customer is VAT-registered but not CIS-registered and is not required to be registered for CIS, normal VAT rules apply. Confirming your customer’s CIS registration status before invoicing is important.

For full official guidance, see VAT domestic reverse charge for building and construction services at gov.uk.

How the reverse charge affects your invoicing

When a supply is subject to the reverse charge, your invoice must be prepared differently from a standard VAT invoice. The requirements are:

• Show the net amount excluding VAT
• State the VAT rate that would normally apply (for example, 20%)
• Include a clear statement that the reverse charge applies and the customer is required to account for the VAT
• Do not include a VAT amount or a total including VAT on the invoice

Required invoice wording
Acceptable wording includes: ‘Reverse charge: customer to account for VAT to HMRC’ or ‘Domestic reverse charge, the customer is liable for the VAT.’ Both versions are widely accepted. Failing to include this note is a compliance error and can cause issues when your customer processes the invoice.

How the reverse charge affects your VAT return

Your VAT return treatment changes for reverse charge supplies. The key boxes to understand are:

• Box 1 (VAT due on sales):
  Do not include output VAT on reverse charge sales. You are not charging VAT, so there is nothing to declare in Box 1 for these supplies.
• Box 6 (Total value of sales):
  Include the net value of your reverse charge sales in Box 6. The sales must still be declared; it is only the VAT element that is absent.
• Box 4 (Input tax reclaimable):
  This is completely unaffected. You continue to reclaim VAT on all your purchases as normal.

For businesses doing mixed work (some reverse charge, some standard rated), both types of supply appear in Box 6, but only the standard-rated supplies generate output VAT in Box 1. Using the correct VAT code in your accounting software is essential to ensure the return is populated correctly.

The cash flow impact of the reverse charge

Quick answer
Before the DRC, the VAT collected on invoices sat in the business until the quarterly payment date, providing a short-term interest-free float. Under the reverse charge, you no longer collect that VAT. For scaffolding companies doing primarily reverse-charge work, this changes the quarterly cash position significantly.

To understand the scale of this, consider a scaffolding business invoicing £150,000 per quarter at 20% VAT. Previously, £30,000 of VAT flowed through the business each quarter: collected from the main contractor, held for up to three months, then remitted to HMRC. Under the reverse charge, that £30,000 never appears in the business’s bank account at all. It is accounted for entirely by the main contractor.

You may move to a VAT repayment position

If your purchase costs (materials, fuel, equipment hire, subcontractor costs) generate more input VAT to reclaim than your output VAT on any remaining standard-rated sales, you will find yourself in a repayment position: HMRC owes you money each quarter rather than the other way around.

This is more common for scaffolding companies after the DRC, particularly those who do most of their work for CIS-registered main contractors. If you are regularly in a repayment position, switching from quarterly to monthly VAT returns can significantly accelerate the cash recovery. Monthly returns mean you receive your repayment every four weeks rather than waiting three months. Discuss this with your accountant.

Managing mixed reverse charge and standard rate work

Many scaffolding companies do both reverse charge work (for CIS-registered main contractors) and standard-rated work (for end users or non-CIS customers). Managing both types on the same VAT return requires accurate coding of each supply type in your accounting software.

A coding error that applies the reverse charge to a standard-rated supply (or vice versa) will result in a VAT return that does not match reality, which can trigger HMRC enquiries and require corrections to be submitted.

Common error
Applying the reverse charge to a supply where it does not apply, or charging normal VAT on a supply that should be reverse charged, both create compliance problems. The most common source of errors is failing to verify the customer’s CIS registration status before invoicing. Always confirm this for new customers.

Practical steps to manage the reverse charge correctly

Update your accounting software

Most modern accounting packages (Xero, QuickBooks, Sage) now include a VAT code specifically for DRC transactions. The code should be set up to include the supply in Box 6 but not in Box 1 of the VAT return. Ensure everyone in your team who raises invoices understands when to use this code.

Verify every new customer’s status

Before invoicing a new customer, confirm whether they are VAT-registered and CIS-registered. You can check CIS registration status through HMRC’s CIS verification service before making payment. If the customer is both VAT and CIS-registered, the reverse charge is likely to apply to your supply.

Update your cash flow forecast

If you have recently moved from largely standard-rated work to mostly reverse charge work, your quarterly VAT cash position has changed materially. Update your cash flow forecast to reflect that the VAT float you previously worked with is no longer available, and adjust your quarterly planning accordingly.

Consider monthly VAT returns if regularly in repayment

If the reverse charge means HMRC regularly owes you a VAT refund each quarter, switching to monthly returns accelerates the recovery of that cash. The administrative burden is slightly higher (12 returns per year instead of 4), but for businesses with significant quarterly refunds, the cash flow benefit is often worth it.