VAT for UK Trade Contractors: Standard Rate, Reduced Rate, and Domestic Reverse Charge

VAT is one of the areas where getting things wrong can be extremely costly for trade contractors, whether that means overcharging a client at the standard rate when a lower rate applies, failing to account for the Domestic Reverse Charge correctly, or missing the registration threshold and then facing a backdated VAT liability. Understanding the rules specific to construction services in the UK — not least because they changed materially in 2021 — is essential for any contractor running a legitimate, profitable business.

The VAT Registration Threshold

Any business whose taxable turnover exceeds £90,000 in any rolling twelve-month period must register for VAT with HMRC. This threshold has been frozen at £90,000 since April 2024, and the Government has indicated it will remain at that level for the foreseeable future. The threshold refers to taxable turnover — the value of supplies on which VAT is charged or which are zero-rated — not profit. Once registered, a business must charge VAT on its taxable supplies, file periodic VAT returns (usually quarterly), and pay the net VAT owed to HMRC. Voluntary registration below the threshold is also possible and can be advantageous if you make significant VAT-able purchases, since it allows you to reclaim input VAT. However, voluntary registration also adds the administrative burden of quarterly returns and requires you to charge VAT to all clients, which may make you less competitive when working for non-VAT-registered domestic customers who cannot reclaim the VAT.

Standard Rate, Reduced Rate, and Zero Rate in Construction

VAT rates in construction depend on the nature of the work and the type of property involved. The standard rate of 20 per cent applies to most construction services on commercial properties and to repairs and renovations of existing domestic properties. The reduced rate of 5 per cent applies to certain qualifying works on dwellings, most notably the installation of energy-saving materials in residential buildings, conversions of non-residential buildings to residential use, and renovation work on properties that have been empty for at least two years. The zero rate applies to the construction of new residential buildings (new build houses and flats), the construction of buildings for relevant residential or charitable use, and approved alterations to listed buildings where the works require listed building consent. Determining the correct rate requires the contractor to understand both the nature of the work and the status of the building. A plumber fitting a boiler in a new-build house applies the zero rate; the same plumber replacing a boiler in an occupied domestic property applies the standard rate.

The Domestic Reverse Charge for Construction Services

The most significant VAT change in the construction sector in recent years is the Domestic Reverse Charge for construction services, which took effect on 1 March 2021 after several postponements. Under the DRC, when a VAT-registered construction business supplies construction services to another VAT-registered business that will itself make an onward supply of those services, the VAT accounting responsibility shifts from the supplier to the customer. In practice this means the subcontractor issues an invoice without charging VAT, includes a statement on the invoice that the Domestic Reverse Charge applies, and the main contractor accounts for VAT on their own VAT return both as output tax and as input tax — with the result that no cash changes hands for the VAT element. The DRC was introduced because HMRC identified widespread VAT fraud in the construction supply chain, where subcontractors would charge VAT to main contractors and then disappear before paying that VAT to HMRC.

Which Supplies Are Subject to the DRC

The DRC applies to supplies of construction services as defined in CIS, where both the supplier and the customer are VAT registered and the customer makes an onward supply of construction services. It does not apply where the customer is the end-user — for example, a building owner who is not a construction business — or where the supplier is not registered for VAT. It also does not apply to zero-rated supplies such as new-build residential work. In practice this means that most subcontractor-to-main-contractor invoices within the construction supply chain will be subject to the DRC. The supplier must confirm with the customer whether DRC applies before issuing the invoice, and the safest approach is to obtain written confirmation that the customer is VAT registered and will be making an onward supply. Getting this wrong can result in either incorrectly charging VAT that should not be charged, or failing to reverse-charge VAT that should have been, both of which can trigger HMRC enquiries.

Invoicing Under the Domestic Reverse Charge

A DRC invoice looks different from a standard VAT invoice. The invoice should show the net value of the supply, a zero amount in the VAT column (or state that the DRC applies and that no VAT is due from the supplier), and a clear statement along the lines of "Domestic Reverse Charge: Customer to account for VAT to HMRC." The invoice must also include the supplier's VAT registration number, the applicable VAT rate, and the VAT amount that the customer must self-account for, even though the supplier is not charging it. Some suppliers include a line showing the notional VAT amount for the customer's reference. The total payable on the invoice is therefore the net amount only. For subcontractors operating under both CIS and DRC simultaneously, the invoice is further complicated by the need to separate materials from labour, show the CIS deduction, and apply the DRC treatment, all in the same document.

Input VAT Recovery and Cash Flow Implications

For subcontractors, the introduction of the DRC had an immediate and significant cash flow impact. Before March 2021, a subcontractor would collect 20 per cent VAT from the main contractor as part of their payment, hold that money until the quarterly VAT return was due, and then pay it over to HMRC. This created a valuable cash float. Under DRC, the subcontractor receives only the net amount, and the cash float disappears entirely. At the same time, the subcontractor still incurs VAT on their purchases — materials, tools, van running costs — and must still file VAT returns and reclaim that input tax. Subcontractors who were previously in a small payment position may find themselves regularly in a repayment position, where HMRC owes them more input VAT than they collect in output VAT. HMRC processes repayment returns, but the timing of refunds must be factored into cash flow planning.

How QuotCraft Manages VAT for Contractors

QuotCraft's invoicing engine is built to handle the complexity of UK construction VAT correctly. When you raise an invoice for a construction supply, the platform prompts you to indicate whether the job is standard-rated, reduced-rated, or zero-rated, and whether the DRC applies. Where DRC is applicable, QuotCraft automatically formats the invoice in the correct way — suppressing the output VAT amount, including the mandatory DRC statement, and calculating the notional VAT figure for your customer's reference. For subcontractors receiving DRC invoices, QuotCraft records the input VAT correctly so your VAT return accurately reflects the reverse charge treatment. All of this reduces the risk of expensive errors on VAT returns and ensures that the invoices you send to clients and main contractors are compliant with HMRC's requirements from the moment they are issued.