What the Domestic Reverse Charge Actually Is
Introduced on 1 March 2021, the Domestic Reverse Charge (DRC) for construction services was HMRC's response to missing trader VAT fraud. Dishonest subcontractors were collecting VAT from main contractors and then dissolving before paying it across to HMRC. The fraud was costing the UK hundreds of millions of pounds each year.
Mechanically, the process is simple once you see it clearly. Instead of the subcontractor charging VAT on their invoice, the main contractor accounts for the VAT directly in their own VAT return. The subcontractor invoices for the net amount only, with a statement confirming that DRC applies. No VAT changes hands between the two businesses.
For the main contractor, this means declaring the input VAT (what they would have paid to the subcontractor) and the output VAT (what the subcontractor would have charged) in the same VAT return period. For most standard-rated businesses, these two entries cancel each other out precisely. For the subcontractor, it means no longer collecting 20% VAT on top of their invoices. The cash flow consequences of that are significant, and we cover them in full below.
Which Construction Services Fall Inside the DRC
The DRC applies only to supplies of specified construction services, and two conditions must both be satisfied: the supply must be reported under the Construction Industry Scheme (CIS), and both the supplier and the customer must be VAT-registered businesses.
Specified services cover a wide range of physical construction activity. Building, altering, repairing, extending, demolishing or dismantling buildings or structures all qualify. So does constructing or altering any works forming part of the land, including walls, roadworks, power lines, railways, docks, harbours, pipelines and similar infrastructure.
Mechanical and electrical installation services are included too. Heating, lighting, air-conditioning, ventilation, power supply, drainage, sanitation, water supply and fire protection systems all fall within scope when installed in any building or structure. Interior fit-out work, including partitioning, flooring, plastering, carpentry, painting and decorating, also qualifies as a specified service.
The CIS reporting requirement is often overlooked. Supplies of construction services to customers who are not contractors within CIS, such as private householders, fall entirely outside the DRC. Standard VAT applies to those jobs regardless of the nature of the work.
Services That Fall Outside the DRC
Several categories of supply are explicitly excluded from the reverse charge, even where they occur on a CIS construction site.
Professional services do not trigger DRC. Architects, structural engineers, quantity surveyors and project managers providing design or advisory services charge standard 20% VAT regardless of the project context. The distinction is between physical construction work and the professional services that specify or oversee it.
Materials-only supplies are also excluded. A builders merchant delivering roof tiles, structural steel or fixings without any labour or installation element does not apply DRC, even if the customer is a main contractor running a CIS project. Once labour or installation is added to the same supply, the position changes.
Drilling for water, oil, gas or other minerals sits outside the specified services list. Extraction and processing of raw materials are excluded as well. Scaffolding hire (without erection) and sign-writing where no physical structural work is involved also fall outside the rules.
The End User and Intermediary Supplier Exemptions
Five years in, this is still where most of the practical confusion sits.
An end user, in DRC terms, is a business that receives construction services but does not make any onward supply of those services to another party. The clearest example is a retailer commissioning a main contractor to fit out a new shop. The retailer is the end point of the construction supply chain and will never re-supply those construction services to anyone else.
When an end user commissions work directly from a contractor, the DRC does not apply, provided the end user notifies the contractor in writing of their end user status. That written notification is not optional. Without it, the contractor cannot verify the customer's position and is legally required to apply DRC regardless of what either party believes to be true.
Intermediary suppliers are VAT and CIS-registered businesses connected or linked to end users, typically through a shared property interest in the same land or through membership of the same corporate group. A property developer commissioning a subcontractor on behalf of a connected end user company may qualify. Again, written notification must be given to the supplier before invoicing begins.
The consistent lesson from the construction businesses we onboard is straightforward: obtain the written end user notification before issuing the first invoice, keep it on file, and do not assume a long-standing customer relationship means the exemption is still in place. End user status can change if a business changes how it uses a property.
How to Invoice Correctly as a Subcontractor
A compliant DRC invoice must include several specific elements to satisfy HMRC requirements.
Show the net value of the work. Do not include a VAT amount as a figure the customer must pay. Instead, state the VAT rate that would apply (typically 20% standard rate) and calculate the VAT amount that would have been charged, shown separately as a reference figure only. The total amount the customer actually pays is the net figure.
Your invoice must also carry a clear statement that the reverse charge applies. HMRC's recommended wording is: "Reverse charge: VAT Act 1994 Section 55A applies." Some businesses use abbreviated versions, but including the full statutory reference removes any ambiguity in a compliance check.
Here is a practical example. A roofing subcontractor completes a repair for a main contractor, with a net value of £8,500. Their DRC invoice should show: net amount £8,500, VAT rate 20%, VAT amount (accounted for by the customer under the reverse charge) £1,700, total amount due from customer: £8,500. The main contractor pays £8,500 and then accounts for the £1,700 VAT in their own return.
What the Main Contractor Must Do
Receiving a DRC invoice requires specific action in your VAT return. Many main contractors understood this quickly when the rules arrived; others still handle it incorrectly four years later.
You must account for the VAT as both output tax and input tax in the same VAT return period. Output tax is the VAT you would have paid the subcontractor if it were a standard supply. Input tax is the same amount, reclaimed back as a business purchase. For a standard-rated business making entirely taxable supplies, these two entries cancel each other precisely. No net VAT cost arises from the reverse charge itself.
Partial exemption complicates this. Businesses making a mix of taxable and exempt supplies may find their input tax recovery on DRC purchases is restricted, meaning the reverse charge has a genuine net cost. If your business earns any exempt income (certain types of property income or financial services, for example), seek specific advice before assuming the reverse charge is cost-neutral.
Record-keeping matters too. Main contractors must retain DRC invoices received from subcontractors and must be able to demonstrate in their VAT records that both the output tax and input tax entries were made. Losing or misfiling a DRC invoice creates a gap that HMRC will pursue.
The Cash Flow Reality for Subcontractors
Before 1 March 2021, subcontractors collected VAT from main contractors at the point of invoice, held that cash until their VAT payment date, and then remitted it to HMRC. For a subcontractor on a quarterly scheme billing £40,000 per month in DRC-caught work, that typically meant holding around £8,000 in VAT cash at any one time. Thin-margin businesses sometimes used this float informally, funding one quarter's VAT payment from the incoming VAT of the next.
DRC removed that cushion completely. Subcontractors now receive only the net invoice value, and there is no float.
One partial offset is available. Subcontractors under DRC tend to end up in a net VAT repayment position each quarter, because they pay 20% VAT on their own purchases of materials, fuel, plant hire and other overheads, but receive no output VAT from their main contractor customers. This produces a repayment claim rather than a payment. HMRC refunds repayment returns typically within five working days for businesses on the repayment track, though verification checks can extend this.
Switching to monthly VAT returns is worth considering for any subcontractor consistently in a repayment position. Monthly filing means recovering input tax every 30 days rather than every 90, which meaningfully improves working capital. The application to change filing frequency is straightforward, and it is an option we recommend to most of the construction subbies we bring on board.
The Most Common DRC Mistakes
Five years in, HMRC has been explicit: errors in both directions attract enforcement attention.
Charging standard VAT when DRC should have applied is the most frequent problem. A subcontractor invoicing a VAT and CIS-registered main contractor for specified construction services, where neither the end user nor intermediary supplier exemption applies, must not charge 20% VAT. Doing so means the main contractor has paid VAT they cannot reclaim in the normal way. HMRC will assess the subcontractor for the incorrectly charged output tax and may also raise assessments against the main contractor for incorrectly reclaiming it.
The opposite error occurs just as often. Applying DRC when standard VAT was actually correct, perhaps because the customer turned out to be an unregistered business or an end user whose written notification was never obtained, leaves the subcontractor having failed to charge VAT on a standard-rated supply. That shortfall is the subcontractor's liability, not the customer's.
A third and underappreciated mistake is relying on verbal confirmation of end user status. HMRC does not accept verbal confirmation. The written notification must exist, must predate the first invoice, and must be kept on file. In the construction compliance reviews we have seen, the absence of written end user notifications is one of the most consistent points of exposure.
Finally, some businesses mistakenly apply DRC to supplies that are not CIS-reported. If you carry out work for a customer who is not a CIS contractor, or if the services themselves fall outside the specified services list (architect fees, materials-only supplies, professional consultancy), DRC does not apply. Confirming CIS registration status before invoicing is a simple step that prevents a whole category of errors.
What This Means for You
For subcontractors, the most urgent check is your invoicing. Pull out a recent invoice to a main contractor and confirm it shows the net amount only, states that the reverse charge applies under VAT Act 1994 Section 55A, and shows the VAT amount as a reference figure rather than a payable sum. If your invoices still show a VAT total for the customer to pay, that needs correcting immediately.
On the contractor side, review your VAT return entries for DRC purchases. Each DRC invoice you received should have generated both an output tax entry and a matching input tax entry in the same return period. If you have been receiving DRC invoices but processing them as ordinary purchases, your returns may be materially incomplete.
End user status deserves a file audit too. If any of your customers claim end user status, locate the written notification for each one. Relying on an email or a verbal conversation rather than a formal written notification leaves you exposed. Asking customers to confirm end user status in a brief letter costs nothing and removes a significant compliance risk.
Our construction and CIS team reviews invoicing processes and VAT return positions for new clients as part of onboarding. We handle VAT returns for construction businesses across London and can flag DRC errors before they escalate into HMRC assessments. The CIS compliance service covers monthly returns, subcontractor verification and gross payment status alongside VAT position reviews. If you work in the construction sector and are unsure whether your invoicing is correct, the best time to check is now.