VAT Reverse Charge for Construction: Practical Guide 2026

What is the construction VAT reverse charge?

The domestic reverse charge for construction services was introduced on 1 March 2021. It fundamentally changes who accounts for VAT on construction services in the supply chain.

Under normal VAT rules: the supplier charges VAT, collects it from the customer, and pays it to HMRC on their VAT return (less any input VAT they can reclaim).

Under the reverse charge: the supplier does not charge VAT. Instead, the customer self-accounts for the VAT on their own return -- they declare it as output tax (as if they had charged it themselves) and simultaneously reclaim it as input tax. For the customer, the net VAT position is zero.

The reverse charge was introduced to combat VAT fraud in the construction sector, where unscrupulous subcontractors would charge VAT to contractors, disappear (as "missing trader" fraud), and never pay the VAT to HMRC -- leaving HMRC out of pocket while the contractor had a genuine input VAT claim.

When does the reverse charge apply?

The reverse charge applies when all of the following conditions are met:

1. The supply is of construction services within the scope of CIS (same definition as the Construction Industry Scheme).
2. The supplier is VAT-registered.
3. The customer is VAT-registered.
4. The supply is at the standard rate (20%) or reduced rate (5%) -- not zero-rated.
5. The customer is not an end-user or intermediary supplier.

What counts as CIS-scope construction services?

Services caught include:

• Construction, alteration, repair, extension, demolition of buildings or infrastructure.
• Installation of heating, lighting, ventilation, drainage, and other systems.
• Internal and external cleaning of buildings during construction.
• Painting and decorating as part of construction.
• Civil engineering works.

Services outside CIS (and therefore outside the reverse charge) include:

• Architecture, surveying, and consultancy.
• Scaffolding hire (no labour element).
• Carpet laying (not permanently fixed).
• Drilling for oil and gas.

Who is an end-user?

An end-user is a business or individual that receives construction services for its own occupation or use -- and does not make further onward supplies of those construction services to anyone else.

Examples of end-users:

• A retailer building its own new premises.
• A school commissioning building works on its own site.
• A landlord building properties to let (unless the letting is caught by other supply rules).
• A homeowner having a new extension built.

If the customer is an end-user, the normal VAT rules apply -- the supplier charges 20% VAT in the usual way.

Intermediary suppliers

An intermediary supplier is a business that receives a supply and makes an onward supply of the same or similar services to a connected company. Intermediary suppliers are treated as end-users for the reverse charge -- the normal VAT rules apply.

How to determine if a customer is an end-user

Before applying the reverse charge, the supplier must establish whether the customer is an end-user. HMRC's recommended practice is to get a written confirmation from the customer stating:

• Their VAT registration number.
• Whether they are an end-user or will be making onward supplies of the construction services.

If the customer provides false information, the liability shifts to them -- the supplier is not penalised for applying the reverse charge in good faith based on written confirmation.

If you cannot determine the customer's status, the safest default is to apply the reverse charge (between two VAT-registered businesses) rather than charge VAT -- this protects the supplier from inadvertently facilitating fraud.

How to invoice under the reverse charge

The supplier's invoice must:

1. Not show VAT charged. Do not include a VAT amount on the invoice.
2. State the net amount of the services.
3. Include the magic phrase: "Reverse charge: customer to account for VAT at [rate]%".
4. Include the supplier's and customer's VAT registration numbers.
5. Show that the supply falls within CIS.

Example invoice line:

Construction services per contract -- labour and materials: £18,000.00
VAT: Not charged. Reverse charge applies -- customer to account for VAT at 20% (£3,600.00).

The invoice states the VAT rate and amount for information, but the supplier does not collect it.

VAT return treatment

Supplier's VAT return

The supplier:

• Includes the net value of reverse charge supplies in Box 6 (total value of sales, excluding VAT).
• Does not include any output VAT in Box 1 for these supplies.
• Continues to reclaim input VAT on costs in the usual way (Box 4).

If most of the supplier's business is reverse charge construction, their return will show significant input VAT with little or no output VAT -- potentially creating a repayment return position every quarter. HMRC accepts this as normal for construction subcontractors under the reverse charge.

Customer's VAT return

The customer:

• Accounts for output VAT on the supply in Box 1 (using the supplier's invoice as the basis).
• Reclaims the same amount as input VAT in Box 4 (assuming full VAT recovery).
• Net effect: Box 1 and Box 4 entries cancel out -- zero net VAT liability on the reverse charge supply.
• The gross value of the supply appears in Box 7 (total value of purchases).
• The VAT amount (self-accounted) appears in Box 6 value uplift only -- HMRC guidance specifies the exact box treatment.

For most customers that are fully VAT-recoverable, the reverse charge has no cash cost.

Cashflow impact

For suppliers

The reverse charge is positive for cashflow in some respects:

• The supplier no longer collects 20% VAT from the customer and holds it until the VAT return payment date.
• There is less working capital tied up in VAT that will eventually be paid to HMRC.
• But suppliers with significant input VAT (materials) may have more repayment returns, which HMRC processes within 30 days.

For customers (contractors)

No impact on cashflow -- the VAT self-accounted is immediately reclaimed. The only burden is the additional bookkeeping complexity.

Interaction with the flat rate scheme

The flat rate scheme (FRS) allows businesses to pay a fixed percentage of gross turnover as VAT rather than tracking individual input and output VAT. Rates vary by industry sector.

Under the reverse charge, the supplier does not charge VAT and cannot include reverse charge supplies in flat rate turnover. Reverse charge sales are excluded from FRS calculations.

This means a subcontractor who does almost all their work on a reverse charge basis (for VAT-registered contractors) has very little "standard VAT" turnover to apply the flat rate to. The FRS benefit -- paying less than the difference between output and input VAT -- effectively disappears.

HMRC acknowledges this. Businesses in this position should consider leaving the FRS and switching to standard VAT accounting to reclaim input VAT on materials directly.

Zero-rated supplies -- no reverse charge

Construction services that are zero-rated (such as the construction of new residential properties, certain conversions from commercial to residential) are excluded from the reverse charge. Zero-rated supplies follow normal VAT rules -- the supplier charges 0% VAT.

Common errors

1. Charging VAT when reverse charge should apply. The supplier charges 20% to a VAT-registered contractor. The contractor reclaims it but the supplier also pays it to HMRC -- double tax does not arise, but the cashflow position is wrong and there may be a penalty for incorrect invoicing.

2. Applying reverse charge to end-users. If the customer is an end-user, normal VAT rules apply. Applying reverse charge to an end-user means the end-user cannot self-account the VAT -- the supplier should have charged 20%.

3. Flat rate scheme users forgetting to exclude reverse charge supplies from FRS turnover.

4. Not obtaining written end-user confirmation. Without written evidence, the supplier's position on whether to charge VAT or apply reverse charge may be challenged by HMRC.

Sources

• HMRC: VAT domestic reverse charge for building and construction services
• HMRC: Check when you must use the VAT domestic reverse charge for building and construction services
• HMRC: VAT Notice 735: domestic reverse charge procedure