Construction VAT Reverse Charge: The Complete Guide for 2026

The Accounted Business Team·26 February 2026·12 min read

The domestic VAT reverse charge for building and construction services is one of the most significant VAT changes to affect the construction industry in recent years. Introduced on 1 March 2021, it fundamentally changed how VAT is accounted for on supplies of certain construction services between VAT-registered businesses. Despite being in force for several years now, it continues to cause confusion. This guide explains how the reverse charge works, which services it applies to, how to invoice correctly, and how it interacts with the Construction Industry Scheme (CIS).

What Is the Construction Reverse Charge?

Under normal VAT rules, the supplier of goods or services charges VAT on their invoice, collects it from the customer, and pays it to HMRC. Under the reverse charge, the supplier does not charge VAT. Instead, the customer accounts for the VAT themselves by treating it as both output tax (due to HMRC) and input tax (reclaimable, subject to normal rules). The effect is that the VAT is declared on the customer's VAT return rather than the supplier's.

The purpose of the reverse charge is to combat missing trader fraud in the construction sector, where subcontractors would charge VAT on their invoices but then disappear without paying the VAT to HMRC.

Which Services Are Covered?

The reverse charge applies to supplies of construction services that are reported through the Construction Industry Scheme (CIS). The services covered include construction, alteration, repair, extension, demolition, and dismantling of buildings or structures. It also covers installation of heating, lighting, air conditioning, ventilation, power supply, drainage, sanitation, water supply, and fire protection systems. Painting and decorating, site clearance, earth moving, excavation, tunnelling, and boring are included. So is the installation of seals, shutters, blinds, and canopies, as well as laying of foundations, erection of scaffolding, roofing (including thatching), and internal cleaning carried out in the course of construction.

HMRC provides a comprehensive list of covered services in their construction reverse charge guidance.

Services That Are NOT Covered

Certain services fall outside the reverse charge. These include the manufacture or delivery of building materials where the supply does not include installation, the supply of staff or workers only (labour-only supplies to employment businesses are excluded), professional services such as architectural, surveying, and design services, drilling for or extraction of oil, natural gas, or minerals, hire of scaffolding (without erection or dismantling), carpet fitting, and making, installing, and repairing artistic works.

When Does the Reverse Charge Apply?

The reverse charge applies when all of the following conditions are met. The supply is of construction services within the scope of CIS. Both the supplier and the customer are VAT-registered in the UK. The supply is standard-rated or reduced-rated (it does not apply to zero-rated supplies). The customer is not an end user or an intermediary supplier.

The end user and intermediary supplier concepts are critical to understanding when the reverse charge does and does not apply.

End Users

An end user is a VAT-registered customer who uses the construction services for its own purposes and does not make onward supplies of construction services. Common examples include a retailer that hires a builder to fit out a new shop, a manufacturer that commissions an extension to its factory, a landlord that engages contractors to carry out repairs on a property it lets out, and a business having its own offices refurbished.

In practical terms:

A homeowner hiring a builder is an end user (reverse charge does NOT apply — and they are not VAT-registered, so the charge would not apply in any case)
A property developer hiring a subcontractor is NOT an end user if they will supply construction services onward (reverse charge DOES apply)
A business having its own offices refurbished is an end user (reverse charge does NOT apply)

When the customer is an end user, the reverse charge does not apply, and the supplier charges VAT in the normal way. The end user must notify the supplier in writing that it is an end user. Without this notification, the supplier should apply the reverse charge by default.

Intermediary Suppliers

An intermediary supplier is a VAT-registered business that is connected or linked to an end user and that supplies construction services to that end user. Connected parties include businesses under common ownership or control, such as a landlord and tenant, or companies in the same corporate group. If you are an intermediary supplier, you must notify your supplier in writing, and the normal VAT charge (not the reverse charge) applies to supplies you receive.

How to Invoice Under the Reverse Charge

Invoicing correctly is essential. A reverse charge invoice must show all the usual invoice details (supplier and customer details, date, description of services, and so on) but must not include a VAT amount. Instead, the invoice should show the net amount and include a note stating that the reverse charge applies.

HMRC recommends the following wording on the invoice: "Customer to account for reverse charge output tax of £X at Y% VAT rate." You should state the VAT amount and rate that the customer must account for. Some businesses use the alternative wording: "Reverse charge: Customer to account for VAT to HMRC."

The invoice must also show the supplier's VAT registration number, as with any VAT invoice. You should also state the rate of VAT that would have applied (for example, "20% VAT to be accounted for by recipient").

A typical reverse charge invoice might look like this:

Labour and materials for bathroom refurbishment: £5,000.00 VAT at 20% reverse charge — customer to account to HMRC: £1,000.00 Total due: £5,000.00

The customer pays only the net amount (£5,000) and accounts for the £1,000 VAT on their own return.

Credit Notes

If you need to issue a credit note for a reverse charge supply, the same rules apply. The credit note should not show a VAT amount and should state that the reverse charge applies, so the customer can adjust their VAT return accordingly.

Accounting Entries

For the Supplier (Subcontractor)

The supplier does not charge VAT on the invoice, so there is no output tax to declare on the supply. The supplier's VAT return shows the net value of the supply in Box 6 (total value of sales excluding VAT) but nothing in Box 1 (VAT due on sales). The supplier can still recover input tax on their own purchases in the normal way.

For the Customer (Contractor)

The customer accounts for the reverse charge VAT on their VAT return as follows. Box 1: include the VAT amount due under the reverse charge (this is the output tax). Box 4: include the same VAT amount as input tax (subject to normal recovery rules). Box 6: do not include this amount (it is not your sale). Box 7: include the net value of the purchase.

The effect is that the VAT entry in Box 1 and Box 4 cancel each other out, so the net VAT payable to HMRC is usually nil in respect of the reverse charge supply. However, if the customer is partly exempt or has restricted input tax recovery, the amount in Box 4 may be less than the amount in Box 1, meaning there is a net VAT cost.

Interaction with CIS

The construction reverse charge operates alongside CIS, and the two systems interact in several ways. CIS deductions are calculated on the labour element of the payment, after deducting the cost of materials. Since the reverse charge means no VAT is charged on the invoice, the CIS deduction is calculated on the net (VAT-exclusive) amount, which is the same as the invoice total.

Before the reverse charge was introduced, subcontractors invoiced including VAT, and the CIS deduction was calculated on the VAT-exclusive amount. The practical calculation is the same, but the fact that the invoice no longer includes VAT simplifies matters.

Subcontractors must still be verified through CIS, and the usual CIS deduction rates apply: 20% for registered subcontractors, 30% for unregistered subcontractors, and 0% for those with gross payment status.

Subcontractor Obligations

If you are a subcontractor supplying construction services to a VAT-registered contractor (who is not an end user), you must apply the reverse charge. This means you must not charge VAT on your invoices for those supplies. You must annotate your invoices with the appropriate reverse charge wording. You must still file your VAT returns, though the value of reverse charge supplies will appear in Box 6 but not Box 1. You should be aware that the reverse charge may affect your VAT cash flow, as you will no longer receive VAT from your customers on those supplies, but you will still pay VAT on your own purchases.

Cash Flow Impact

The reverse charge can have a significant cash flow impact on subcontractors. Before the reverse charge, a subcontractor would charge VAT on invoices, collect the VAT from the contractor, and pay it to HMRC at the end of the VAT period. This created a temporary cash flow benefit. Under the reverse charge, that benefit disappears because no VAT is collected on the invoice.

Subcontractors who previously relied on this VAT cash flow buffer should plan their finances accordingly. It may be worth reviewing your VAT return frequency. Filing monthly rather than quarterly means you receive input tax refunds (if applicable) more quickly.

Common Mistakes

Failing to Apply the Reverse Charge

The most common mistake is suppliers continuing to charge VAT on supplies that should be subject to the reverse charge. If you charge VAT when the reverse charge applies, the customer should not pay the VAT element and should notify you of the error. You would then need to issue a credit note and reissue the invoice without VAT.

Applying the Reverse Charge to End Users

The reverse charge should not apply to supplies to end users. If a customer has notified you in writing that they are an end user, you should charge VAT in the normal way. If you are unsure whether a customer is an end user, ask them to confirm in writing before invoicing.

Incorrect VAT Return Entries

Customers often make errors on their VAT returns when accounting for the reverse charge. The most common error is including the reverse charge VAT in Box 1 but forgetting to include it in Box 4, which overstates the VAT liability.

Confusing the Reverse Charge with the Flat Rate Scheme

Businesses on the VAT Flat Rate Scheme must account for the reverse charge outside the flat rate scheme. Reverse charge supplies received are accounted for under the normal VAT rules (Box 1 and Box 4), not through the flat rate calculation. Reverse charge supplies made are excluded from the flat rate turnover.

Forgetting Materials

The reverse charge applies to construction services, including labour and materials supplied as part of those services. If you supply and install materials, the whole supply is subject to the reverse charge. If you supply materials separately (without installation), that is a goods supply outside the reverse charge.

Common Scenarios

Scenario 1: Subcontractor to Main Contractor

Dave (a VAT-registered plumber) does pipework for ABC Construction Ltd (a VAT-registered main contractor building a housing development). ABC Construction is not an end user — they are making onward supplies of construction services.

Result: Reverse charge applies. Dave invoices £3,000 net, notes that the reverse charge applies, and ABC Construction accounts for £600 VAT on their return. Dave receives £3,000 (minus any CIS deduction).

Scenario 2: Main Contractor to Property Developer (End User)

ABC Construction Ltd provides construction services to XYZ Property Developers Ltd, who is the developer and end user of the completed properties. XYZ has confirmed in writing that they are the end user.

Result: Reverse charge does NOT apply. ABC charges VAT normally (£3,000 + £600 VAT = £3,600). XYZ pays £3,600 and reclaims the £600 on their return.

Scenario 3: Builder to Homeowner

Sarah (a VAT-registered builder) renovates a kitchen for Mr and Mrs Jones (private homeowners, not VAT-registered).

Result: Reverse charge does NOT apply. The homeowners are not VAT-registered and are clearly end users. Sarah charges VAT normally.

Scenario 4: Mixed Supplies

Tom provides both construction services (which are within CIS scope) and architectural design services (which are not) to the same contractor.

Result: The reverse charge applies only to the construction services. The architectural design services are invoiced with VAT in the normal way. Tom may need to issue separate invoices for clarity, or clearly distinguish the two elements on a single invoice.

The Flat Rate Scheme and Reverse Charge

The interaction between the VAT Flat Rate Scheme and the reverse charge deserves particular attention.

If you are on the Flat Rate Scheme and you receive reverse charge supplies, you must account for the reverse charge VAT outside the FRS at the full 20% rate in Box 1, and can only reclaim input tax under FRS rules (generally you cannot). This makes the FRS less attractive for contractors receiving significant reverse charge supplies.

If you are a subcontractor on the FRS making reverse charge supplies, those supplies are excluded from your flat rate turnover calculation since no VAT is charged on them. Your FRS liability is based only on your non-reverse-charge income. For more on how the Flat Rate Scheme works generally, see our guide on the Flat Rate Scheme.

Getting the End User Notification Right

The end user notification is critical because it determines whether the reverse charge applies. If a customer is an end user but does not notify the supplier, the supplier should apply the reverse charge by default — potentially causing problems for both parties.

Best practice:

If you are an end user: Provide written notification to every construction supplier at the start of the relationship. A simple statement like "We confirm that we are an end user for the purposes of the VAT domestic reverse charge for construction services" is sufficient.
If you are a supplier: Ask every VAT-registered customer whether they are an end user before issuing your first invoice. Keep their written confirmation on file.

HMRC has published template notifications in their reverse charge technical guide.

Record-Keeping

Both suppliers and customers must keep records sufficient to demonstrate that the reverse charge has been applied correctly. This includes copies of all reverse charge invoices, written end user or intermediary supplier notifications received from customers, records of CIS verification for all subcontractors, the VAT rate that would have applied, and the reverse charge VAT amounts included in your VAT return.

Under Making Tax Digital, all of this must be maintained digitally.

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The Bottom Line

The domestic reverse charge for construction services is a permanent fixture of UK VAT. It is not going away, and HMRC is increasingly active in checking compliance. Getting it right means understanding when it applies, invoicing correctly, and accounting for it properly on your VAT return.

The rules are logical once you understand the structure: the reverse charge applies between VAT-registered businesses in the CIS supply chain, but not to end users. The supplier does not charge VAT; the customer accounts for it. And the whole system is designed to prevent fraud, not to make your life harder.

With the right software and a clear understanding of the rules, reverse charge compliance becomes routine.

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