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If your limited company works in the UK construction industry, VAT probably does not work the way it does for most other businesses. Alongside the Construction Industry Scheme, construction companies also need to understand the VAT domestic reverse charge, often called the CIS reverse charge because of how closely the two regimes sit together. It changes who accounts for VAT, how invoices are raised and how cash moves through the supply chain.
The reverse charge is one of the most misunderstood areas of construction accounting. Contractors charge VAT when they should not. Subcontractors expect VAT payments that never arrive. End user status gets assumed rather than confirmed in writing. Each of these mistakes can lead to incorrect VAT returns, awkward conversations with customers and unwelcome attention from HMRC.
At Pulse Accountants, we work with construction companies every day and see how often the reverse charge causes confusion, even in well run businesses. In this guide, we explain what the VAT domestic reverse charge is, when it applies, how to invoice correctly and what it means for your cash flow.
The VAT domestic reverse charge is a way of accounting for VAT on certain building and construction services in the UK, where the customer accounts for the VAT instead of the supplier. Under normal VAT rules, a supplier charges VAT on their invoice, collects it from the customer and pays it to HMRC. Under the reverse charge, that responsibility moves to the customer.
In practice, this means a subcontractor supplying services to a contractor does not charge VAT on their invoice. Instead, the contractor accounts for the VAT directly on their own VAT return. The VAT never physically changes hands between the two businesses.
The reverse charge applies to many building and construction services supplied between VAT registered businesses where the payments are reported under the Construction Industry Scheme. Because the two regimes are so closely linked, many people in the industry refer to it as the CIS reverse charge or reverse charge VAT for construction. It is now the default position for most supplies between subcontractors and contractors in the UK.
The reverse charge was introduced to tackle VAT fraud in the construction sector. Before the rules changed, a supplier could charge VAT to a customer, collect the money and then disappear without ever paying that VAT to HMRC.
By moving the responsibility for accounting for VAT to the customer, the opportunity for this type of fraud is removed. The customer accounts for the VAT as output tax on their own return and, where they are entitled to recover it, reclaims the same amount as input tax. For most contractors this has no net cost, but it does change the process, the paperwork and the cash flow.
The reverse charge applies when all of the following are true:
If any of these conditions are not met, normal VAT rules apply and the supplier charges VAT in the usual way.
The services covered broadly mirror the construction operations covered by the Construction Industry Scheme. This includes constructing, altering, repairing, extending, demolishing and dismantling buildings or structures, along with many installation, painting and decorating services.
One important difference from the Construction Industry Scheme catches many businesses out. Under the scheme, deductions are not applied to materials. Under the reverse charge, if materials are supplied as part of a construction service, the reverse charge applies to the whole invoice, including the materials. Splitting labour and materials onto separate invoices does not change this, because for VAT purposes it is treated as a single supply.
Just as important as knowing when the reverse charge applies is knowing when it does not. Normal VAT rules apply in the following situations:
This last point matters for construction companies that use agency labour. An invoice from an employment business for the supply of workers carries VAT as normal, even where the work itself would sit within the Construction Industry Scheme.
An end user is a business at the end of the supply chain. They receive construction services for their own use rather than selling those services on. A common example is a business having its own premises built or refurbished.
An intermediary supplier is a business connected to an end user that passes the construction services on without adding to them, such as a landlord arranging building work on behalf of a tenant. Intermediary suppliers can also be excluded from the reverse charge in the same way as end users.
Supplies to end users and intermediary suppliers are excluded from the reverse charge, which means normal VAT rules apply and the supplier charges VAT on the invoice. However, this only works if the customer confirms their status in writing. If no written confirmation is provided, the reverse charge remains the default treatment.
This is one of the areas where construction companies most often go wrong. End user status is not something a supplier should assume based on the type of customer or the type of project. A property developer may be an end user on one project and not on another. A particularly common mistake is a contractor believing they are an end user because their own customer is a private homeowner. That is incorrect. The contractor is still selling construction services on, so the reverse charge still applies to the invoices they receive from their subcontractors. The VAT status of the final customer is irrelevant.
The safest approach is to request written confirmation before invoicing and keep that confirmation with the contract records.
A reverse charge invoice still needs to show all the normal invoice details, but with some important differences. The supplier does not add VAT to the amount the customer pays. The invoice must make clear that the reverse charge applies and that the customer is responsible for accounting for the VAT. It should also show the rate of VAT that applies or the amount of VAT the customer needs to account for.
Wording such as "reverse charge: customer to account for the VAT to HMRC" meets the requirement. Most modern cloud accounting software, including Xero, Sage and QuickBooks, includes reverse charge functionality, but the settings need to be configured correctly. Using the wrong tax code is one of the most common bookkeeping errors we see in construction accounts.
For the supplier, the net value of the sale goes in box six of the VAT return as normal, but no output VAT is entered in box one, because the customer is accounting for it instead.
For the customer, the VAT is accounted for as output tax in box one and reclaimed as input tax in box four on the same return, subject to the normal recovery rules. The net value of the purchase goes in box seven. Handled correctly, the box one and box four entries offset each other, so the reverse charge is usually cash neutral for the contractor.
Getting these entries wrong distorts the VAT return, which is why the tax codes in your accounting software need to be set up properly from the start.
For subcontractors, the reverse charge can have a real impact on cash flow. Under normal VAT rules, a subcontractor collects VAT from the customer and holds that money until it is due to HMRC. That temporary cash benefit disappears under the reverse charge, because the VAT is never received in the first place.
Subcontractor limited companies that used that VAT money as working capital often feel the difference quickly. Cash flow forecasting becomes even more important, particularly when the reverse charge sits alongside staged payments, retentions and Construction Industry Scheme deductions.
There is a potential upside for some businesses. A subcontractor who no longer charges VAT on most sales but still pays VAT on purchases may find their VAT returns become repayment claims. In that situation, moving to monthly VAT returns can speed up repayments from HMRC and support cash flow. This is exactly the kind of decision a construction accountant should be reviewing with you.
Yes, and this catches out many smaller subcontractor limited companies. Supplies that fall under the reverse charge are excluded from the flat rate scheme and must be accounted for under the reverse charge rules instead.
For a subcontractor whose sales are now mostly reverse charge supplies, staying on the flat rate scheme often no longer makes sense. There is little or no output VAT to account for under the scheme, but remaining on it blocks the recovery of input VAT on materials, tools and overheads. Moving to standard VAT accounting can allow that VAT to be reclaimed, which directly improves cash flow.
The cash accounting scheme cannot be used for reverse charge supplies either. If your business uses either scheme, it is worth reviewing whether it still works in your favour now that the reverse charge applies to your sales or purchases.
Across the construction companies we work with, the same errors come up again and again:
None of these mistakes are unusual, and most come from applying general VAT knowledge to a sector where the rules work differently. The problem is that repeated errors can build up across many invoices, making corrections time consuming and increasing the risk of HMRC enquiries.
The reverse charge and the Construction Industry Scheme are separate regimes, but they operate side by side on the same transactions, which is why they are so often confused and why many people simply call it the CIS reverse charge.
The Construction Industry Scheme deals with deductions from payments to subcontractors, which count towards the subcontractor's tax. The reverse charge deals with how VAT is accounted for on the supply. A single subcontractor invoice can be affected by both at the same time: the contractor may deduct under the scheme and also account for the VAT under the reverse charge.
Because the scope of the reverse charge is built on the scope of the Construction Industry Scheme, getting your scheme status and processes right is the foundation for getting VAT right. If you are unsure how the scheme applies to your business, our guide to what CIS means for UK construction businesses is a good place to start. [Internal link: What Does CIS Mean? A Guide for UK Construction Businesses]
At Pulse Accountants, we support construction limited companies with every part of their financial operations, from Construction Industry Scheme compliance and VAT to job costing, cash flow forecasting and management reporting. The reverse charge is not just a technical VAT rule. It affects your invoicing process, your software setup, your contracts and your working capital.
We help construction businesses by:
If you would like confidence that your VAT treatment is right on every invoice, speak to Pulse Accountants today and find out how our construction accounting specialists can support your business.
Who pays the VAT under the domestic reverse charge?
Under the reverse charge, the customer accounts for the VAT rather than the supplier. A contractor receiving construction services from a subcontractor accounts for the VAT as output tax on their own VAT return and, where entitled, reclaims it as input tax on the same return. The subcontractor does not charge VAT on the invoice.
What is the CIS reverse charge?
The CIS reverse charge is another name for the VAT domestic reverse charge for building and construction services. It is called the CIS reverse charge because it applies to supplies reported under the Construction Industry Scheme. The two regimes are separate, but they operate on the same transactions, with the scheme covering tax deductions and the reverse charge covering VAT.
Does the VAT reverse charge apply to materials?
Yes, where materials are supplied as part of a construction service, the reverse charge applies to the whole supply, including the materials. This is different from the Construction Industry Scheme, where deductions are not applied to materials. Splitting labour and materials onto separate invoices does not remove the reverse charge, because it is treated as a single supply for VAT purposes.
Does the reverse charge apply to zero rated work such as new build housing?
No. The reverse charge only applies to construction services taxed at the standard or reduced rate of VAT. Zero rated work, such as the construction of qualifying new residential housing, follows normal VAT rules, so subcontractors working on new build homes do not apply the reverse charge to those supplies.
What should a reverse charge invoice say?
A reverse charge invoice should not add VAT to the total, but it must state clearly that the reverse charge applies and that the customer is responsible for accounting for the VAT to HMRC. It should also show the applicable rate of VAT or the amount the customer needs to account for.
What is an end user for the reverse charge?
An end user is a business that receives construction services for its own use rather than selling those services on, such as a company having its own premises refurbished. Supplies to end users are excluded from the reverse charge, but only where the end user confirms their status in writing. Without written confirmation, the reverse charge remains the default.
Do I still charge VAT if my customer is a homeowner or not VAT registered?
Yes. The reverse charge only applies where both the supplier and the customer are VAT registered and the work is reported under the Construction Industry Scheme. If your customer is a private homeowner or a business that is not VAT registered, normal VAT rules apply and you charge VAT in the usual way.
Does the reverse charge affect the flat rate scheme?
Yes. Supplies covered by the reverse charge are excluded from the flat rate scheme. Subcontractors whose sales are mostly reverse charge supplies often benefit from leaving the scheme, because staying on it prevents them from reclaiming VAT on materials and overheads while providing little benefit in return. A construction accountant can review whether the scheme still suits your business.
How does the reverse charge affect subcontractor cash flow?
Subcontractors no longer receive VAT from their customers on reverse charge supplies, which removes the temporary cash benefit of holding VAT until it is due to HMRC. Some subcontractors find their VAT returns become repayment claims, in which case moving to monthly VAT returns can speed up repayments and support cash flow.
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