VAT Domestic Reverse Charge for Construction: A Guide for Contractors and Subcontractors

The VAT domestic reverse charge for construction has been in effect since March 2021, and it still trips up businesses issuing their first invoice under it — and subcontractors who only notice the cash-flow effect once it has already hit their bank balance.

What the reverse charge changes

Normally, a VAT-registered business charges VAT on its sales (output tax) and pays it to HMRC, while reclaiming VAT on its costs (input tax). The domestic reverse charge for building and construction services flips that for supplies between two VAT-registered, CIS-registered businesses. The subcontractor invoices without charging VAT. Instead, the contractor receiving the service accounts for that VAT themselves — declaring it as both output tax and input tax on their own VAT return. For a fully taxable contractor the two entries cancel out; no cash actually changes hands with HMRC on that transaction.

The point of the rule was to close down a specific type of fraud, where a supply chain would charge VAT, collect it, and disappear before paying it over to HMRC. Shifting the liability to the end recipient of the chain removes the opportunity.

Who it applies to

The reverse charge applies where all of the following are true:

• The supply is a construction service within the scope of the Construction Industry Scheme (CIS), covering standard-rated or reduced-rated work — not zero-rated work such as most new-build housing
• Both supplier and customer are registered for VAT
• Both are registered under CIS as contractor or subcontractor
• The customer is not an end user or an intermediary supplier connected to one

If any of those conditions is not met, normal VAT rules apply and the supplier charges VAT as usual.

The end user exclusion

This is the exception businesses most often get wrong. An end user is a customer who receives the construction service for their own use, rather than as part of an onward supply of construction services — a landlord having their own building refurbished, a business fitting out its own office, a homeowner extending their house. Reverse charge does not apply to supplies to end users; the supplier invoices with VAT in the normal way.

The catch is that the supplier is not expected to work this out alone. End users (and intermediary suppliers, such as connected landlord and tenant businesses) are required to confirm their status in writing — typically a short statement on the purchase order, contract or a standalone notice. Without that confirmation, a supplier is entitled to assume the reverse charge applies. Property developers commissioning work on their own developments are usually end users; main contractors buying in subcontracted trades usually are not.

What a reverse charge invoice looks like

A compliant reverse charge invoice shows the net value of the supply, states clearly that the reverse charge applies, and specifies the rate of VAT that would otherwise have been due (so the customer knows what to account for) — but does not add that VAT to the total the customer is asked to pay. Getting this wrong in either direction — charging VAT when the reverse charge should apply, or omitting the required wording — is one of the most common invoicing errors we see from construction clients switching systems or subcontractors for the first time.

The cash-flow impact on subcontractors

This is where the reverse charge is felt hardest, and it is separate from CIS deductions on labour. Before the reverse charge, a VAT-registered subcontractor collected 20% VAT from the contractor on each invoice and held it — in practice, as working capital — until the next VAT return was due. Under the reverse charge, that VAT is never collected in the first place. For subcontractors used to that float, the change can be a real, ongoing dent in cash flow, on top of CIS tax already being deducted at source from labour.

The common response is to move from quarterly to monthly VAT returns, which brings forward any repayment position (common for subcontractors whose input VAT on materials and overheads now regularly exceeds their output VAT) rather than waiting up to three months to reclaim it. It is a straightforward change with HMRC and one worth making if the reverse charge applies to most of your turnover.

How this interacts with CIS refunds

The reverse charge and CIS tax deductions are two separate mechanisms hitting the same subcontractors from different directions — CIS strips 20% or 30% off labour payments at source, and the reverse charge removes the VAT float. Both create cash-flow pressure that often resolves into a refund position at year end. If you are a subcontractor affected by the reverse charge, our guide to CIS refunds for subcontractors covers what you can typically claim back.

Common mistakes we see

• Contractors and subcontractors both charging VAT on the same supply, or both leaving it off, because status was never confirmed in writing
• End user declarations not obtained, leaving suppliers uncertain whether to charge VAT
• Subcontractors on the VAT flat rate scheme not realising the reverse charge and flat rate scheme interact badly — reverse charge sales are generally excluded from flat rate turnover, which can make the scheme unattractive
• Failing to move to monthly VAT returns despite a persistent repayment position, leaving cash with HMRC for longer than necessary

Getting your invoicing right from the start

Whether you are a contractor bringing in subcontractors for the first time or a subcontractor issuing your first reverse charge invoice, getting the treatment right from the outset avoids a messy VAT return correction later. If your accounting system needs setting up correctly for reverse charge supplies, or you want a second opinion on whether a specific job falls inside or outside the rules, that is exactly the kind of question our CIS Refunds service deals with day to day.

Common questions

What is the VAT domestic reverse charge for construction?

It is a rule that shifts the responsibility for accounting for VAT from the supplier to the customer on most construction services between VAT-registered, CIS-registered businesses. The subcontractor invoices without charging VAT; the contractor accounts for that VAT themselves on their own VAT return, as both output and input tax.

Who does the reverse charge apply to?

It applies to standard or reduced-rated construction services supplied between two VAT-registered businesses that are both registered under the Construction Industry Scheme, where the customer is not an end user or intermediary supplier. It does not apply to zero-rated supplies, to supplies to end users, or where the customer is not CIS and VAT registered.

What is an end user under the reverse charge rules?

An end user is a customer who receives construction services for their own use and does not sell on the construction services as part of a further onward supply — for example, a landlord commissioning work on their own building, or a business having its own office refurbished. End users must confirm their status to the supplier in writing, usually a short statement on the order or contract.

How does the reverse charge affect subcontractor cash flow?

Subcontractors no longer collect VAT from contractors on reverse charge invoices, which removes VAT they might previously have held as working capital between collection and payment to HMRC. Many subcontractors move to monthly VAT returns to bring forward VAT repayment claims and offset the cash-flow effect.

This article is general information, not personal tax advice, and tax rules change. Your own position depends on facts we cannot see from here — please take advice before acting on anything above.

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