VAT domestic reverse charge for construction: a practical guide


If you work in construction and you are VAT registered, the domestic reverse charge changes how you handle VAT on most of your invoices. Instead of the supplier charging VAT and the customer reclaiming it, the customer accounts for the VAT themselves on their own return. Here is how the rules work in practice.

What the reverse charge actually is

Under the normal VAT rules, you add VAT to your invoice, collect it from your customer, and pay it to HMRC on your return. Under the reverse charge, which has applied to construction services since March 2021, the flow is different. The supplier issues an invoice with no VAT charged, and the customer records both the output VAT and the input VAT on their own VAT return. For most VAT-registered customers the two entries cancel out, so no extra VAT is actually paid.

The idea behind it is fraud prevention. Construction supply chains were being used for missing-trader fraud, where VAT was charged and collected but never paid over. It applies to specified building and civil engineering services between VAT-registered businesses where the customer is also within the Construction Industry Scheme, with some important exceptions explained below.

Who the reverse charge applies to

The charge applies when three conditions are all met. First, the supplier and the customer are both VAT registered in the UK. Second, the customer is registered for the Construction Industry Scheme. Third, the work falls within the defined list of construction services. That list is broad: it covers constructing, altering, repairing, extending and demolishing buildings and structures, plus installing systems such as heating, lighting, air conditioning, ventilation, power supply, drainage, sanitation, water supply and fire protection. Interior painting and decorating is in scope, and so is the supply-and-fix of building materials.

There are two big exclusions. The reverse charge does not apply when the customer is the end user of the work, for example a homeowner, a landlord who is not in the construction business, or a business having work done on its own premises for its own use. An end user should notify their contractor in writing that they are an end user. The charge also does not apply to zero-rated supplies, to services supplied to overseas customers, or to supplies where the reverse-charge element is 5 per cent or less of the VAT-exclusive contract value.

How to invoice correctly under the reverse charge

Getting the invoice right is where most of the practical work sits. The rules are simple, but they have to be followed exactly.

What must appear on the invoice

Issue the invoice for the net amount only, with no VAT charged. State clearly on the invoice that the domestic reverse charge applies, with a line such as "Reverse charge: customer to pay the VAT to HMRC". Include all the normal VAT invoice details, your VAT number and the customer's VAT number included. Do not show a VAT amount, and do not mix reverse-charge lines with normal VAT-charged lines without labelling them clearly.

Handling end users and the 5 per cent rule

Before you invoice, confirm whether your customer is an end user. If they tell you in writing that they are, charge VAT normally. If a contract mixes construction services with other supplies, check whether the reverse-charge services fall below the 5 per cent threshold of the contract value excluding VAT. If they do, the whole supply follows the normal VAT rules. Keep a short written record of how you reached that decision.

Record keeping for both sides

Both suppliers and customers need to keep clear records. As a supplier, keep evidence that you correctly identified the supply as reverse-charge, including any end-user notifications and VAT registration details you checked. As a customer, record the VAT you accounted for under the reverse charge as output tax and, where you are entitled, reclaim it as input tax on the same return. Your accounting software should have a reverse-charge VAT code, use it consistently so the entries flow to the right boxes on the return.

The three most common mistakes

First, charging VAT when the reverse charge should have been used. This usually happens when a subcontractor does not realise the main contractor is VAT registered and in CIS. Second, the opposite: applying the reverse charge to an end user, typically on work for a property developer's own offices or a retailer's own shop. Third, getting the invoice wording wrong or leaving it off entirely, which creates confusion for the customer's bookkeeper and can draw an HMRC enquiry. All three are avoidable with a short checklist run through at the start of each new contract: confirm both VAT registrations, confirm CIS registration, confirm the customer is not an end user, and use the right invoice wording.

When the rules feel unclear

The reverse charge interacts with retentions, variations, materials-only supplies and overseas subcontractors in ways that catch people out. If construction VAT is a regular feature of your business, it is worth having the returns handled by specialists in outsourced vat compliance. Many firms also keep their general books with a provider of accounting outsourcing services so the VAT treatment and the underlying records stay consistent all year, not just at quarter end.


 

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