The domestic VAT reverse charge applies when a supply falls under CIS reporting, both the supplier and customer are VAT-registered, and the work is standard or reduced rated. If those conditions are met, the supplier does not charge VAT and adds a reverse-charge note to the invoice instead, while the customer self-accounts for the VAT on their own return. Check CIS and VAT status before you raise or pay any invoice, then use the steps below to get the wording, the accounting entries and the paperwork right.
TL;DR:
- The reverse charge applies only when the supply is CIS-reportable, both parties are VAT-registered, and the work is standard or reduced rated, with a 5% disregard option for small contracts.
- The invoice must include specific wording indicating the reverse charge, show the VAT rate and amount separately, and match the correct tax code in accounting software.
- The supplier records the net amount without VAT, while the customer self-accounts for the VAT as output tax and reclaims it as input tax if recoverable.
- End users and intermediary suppliers linked to them can notify in writing to avoid the reverse charge, but otherwise it applies automatically under the conditions.
- Proper setup in accounting software and adherence to a pre-issue checklist can prevent common errors like incorrect wording or misclassification.
Table of Contents
- Which supplies trigger the reverse charge?
- What to show on a reverse-charge invoice
- How supplier and customer record the VAT
- End users, intermediary suppliers and written notification
- Software settings and cash-flow effects to plan for
- A checklist to run before you issue or pay an invoice
- Where contractors usually go wrong
- How I can help with reverse charge, CIS and your accounts
- Sources
- FAQ
- Need help?
Which supplies trigger the reverse charge?
The reverse charge is not automatic on every construction invoice. It applies only when several conditions line up together, and missing one condition means normal VAT rules carry on as usual.
The domestic reverse charge applies where the supply is reported under CIS, both parties are VAT-registered, and the services are standard or reduced rated rather than zero-rated or exempt. It does not apply to supplies made to what HMRC calls an end user, and it does not apply where the customer is receiving the work purely as an employment business supplying staff.
There is also a 5% disregard. If the reverse-charge element of a contract is 5% or less of the total value, both parties can agree to disregard the reverse charge and treat the whole invoice under normal VAT rules instead.
- Scaffolding hire with labour is usually within scope if CIS applies and both parties are VAT-registered.
- Supply-and-fix contracts (materials plus installation) are normally treated as a single reverse-charge supply.
- Goods manufactured offsite then installed onsite can fall either side of the line depending on how the contract is structured, so check each contract on its own facts.
What to show on a reverse-charge invoice
A reverse-charge invoice still needs the usual VAT invoice details: your VAT registration number, the customer’s details, the invoice date, a description of the work and the net value. What changes is that you do not add VAT to the total, and you must say why.
HMRC’s guidance sets out acceptable wording, such as “Reverse charge: VAT Act 1994 Section 55A applies” or “Customer to account to HMRC for the reverse charge output tax.” Show the VAT rate and the amount that would have been due, but keep it out of the invoice total.
| Line | Detail |
|---|---|
| Description | Groundworks and drainage, Site A |
| Net amount | ÂŁ4,200 |
| VAT rate | 20% (reverse charge) |
| VAT amount | ÂŁ840 (not charged, customer to account) |
| Invoice total | ÂŁ4,200 |
| Wording | Reverse charge: customer to account to HMRC for the VAT |
If your software cannot display the VAT figure separately without adding it to the total, note the rate clearly and keep a record of how the amount was calculated in case HMRC asks.
How supplier and customer record the VAT
Once you know the reverse charge applies, the bookkeeping follows a set pattern on both sides.
The supplier records the net sale value, applies the reverse-charge tax code and enters no output VAT. The customer treats the VAT as if they had charged it to themselves: they enter it as output tax in box 1 of their VAT return and, subject to the normal recovery rules, reclaim the same amount as input tax in box 4. Boxes 6 and 7 are unchanged and simply reflect the net values as usual.
A subcontractor invoices £4,200 net for reverse-charge groundworks. HMRC’s technical guide confirms the customer adds £840 (20%) to box 1 as output tax and, if fully recoverable, reclaims the same £840 in box 4, so the net cash effect on that transaction is nil for a fully taxable customer.
- Supplier: net value on the sales side, reverse-charge reference on the invoice, no VAT charged or collected.
- Customer: self-accounted output VAT in box 1, matching input VAT reclaim in box 4 where recovery rules allow it.
If the supplier gets the invoice wrong and charges VAT when the reverse charge should have applied, the customer is still responsible for applying the reverse charge correctly. Liability sits with the customer regardless of what the supplier’s paperwork says.
End users, intermediary suppliers and written notification
The reverse charge does not apply to supplies made to an end user. An end user is a VAT-registered and CIS-registered business that receives the construction services for its own use rather than to sell those services on as part of a further supply. Most main contractors passing work down a supply chain are not end users, but a business having work done on its own premises usually is.
An end user, or an intermediary supplier connected to an end user, can notify the supplier in writing that normal VAT rules should apply instead of the reverse charge. Without that written notification, a supplier should assume the reverse charge applies if the other conditions are met.
- Common end users include property developers building for their own occupation and retailers having their own shops fitted out.
- The notification does not have to follow a fixed template, but it must be in writing and kept on file.
- Some end users choose not to opt out and let the reverse charge apply anyway, which is perfectly valid.
Software settings and cash-flow effects to plan for
Getting the accounting right depends on software being set up correctly before the first reverse-charge invoice goes out, and tools like QuickBooks Self Employed can help manage this setup effectively.
- Check your cloud accounting package has a dedicated reverse-charge VAT code, separate from your standard rates.
- Update invoice templates so the reverse-charge wording appears automatically on qualifying sales.
- Confirm the software is compatible with Making Tax Digital reporting before relying on it for live VAT returns.
- Reconcile reverse-charge entries separately from CIS deductions, since the two rules affect different parts of the return.
Suppliers feel the cash-flow effect most directly: they no longer collect VAT on these sales, so that short-term cash is simply not there. Customers need to be ready to self-account rather than assuming an invoice with no VAT means nothing to report.
Pro Tip: Run a month of test entries in your software, or speak to your provider or accountant, before your first large reverse-charge invoice goes through.
A checklist to run before you issue or pay an invoice
A short routine check before every reverse-charge invoice prevents most of the errors I see in practice.
- Confirm the work is reportable under CIS and check the customer’s CIS status.
- Verify both parties’ VAT registration numbers and agree the correct VAT rate for the supply.
- Ask in writing whether the customer is an end user or intermediary supplier, and keep the reply on file.
- Check the invoice wording and the software tax code match before the invoice is sent.
- If you receive an invoice with the wrong VAT treatment, self-account as required by the rules and ask the supplier for a corrected copy.
Keep every written notification, corrected invoice and VAT calculation together with the transaction record. HMRC can ask to see how you reached your treatment, and a clear paper trail settles most queries quickly.
Where contractors usually go wrong
The reverse charge trips people up in a handful of predictable ways: invoices missing the required wording, customers assumed to be end users without any written confirmation, and software left on the default VAT code so the charge is applied or missed by accident.
I help clients with exactly this kind of setup work, from configuring Xero, FreeAgent or QuickBooks tax codes correctly to reviewing CIS and VAT returns before they’re submitted. If your contracts mix reverse-charge and standard supplies, involve high contract values, or touch cross-border work, having additional review of the VAT treatment is advisable.
— Chris
How I can help with reverse charge, CIS and your accounts
I offer VAT Returns and CIS Services that cover exactly this kind of reverse-charge check, alongside accounting software setup so your invoices and tax codes are configured correctly from the start.
If you’d rather have someone check your contracts and set your software up properly than work it out invoice by invoice, get in touch and I’ll talk you through what’s needed for your business.
Sources
The main HMRC pages behind this guide are the domestic reverse charge guidance, the technical guide, and the underlying statutory instrument, alongside HMRC’s internal VATREVCON manual for detailed rules.
- Gov
FAQ
How does VAT reverse charge for construction work?
The supplier issues an invoice without adding VAT and includes a reverse-charge reference, and the customer accounts for that VAT themselves on their own VAT return. This applies only where the supply is CIS-reportable, both parties are VAT-registered, and the work is standard or reduced rated, as set out in HMRC’s guidance.
Who is exempt from reverse charge VAT?
End users and intermediary suppliers connected to them can be excluded if they notify the supplier in writing, as explained in HMRC’s guidance for suppliers. Supplies to someone who is not VAT-registered, not CIS-registered, or receiving zero-rated or exempt work also fall outside the reverse charge.
How do I process reverse-charge VAT on my return?
The customer enters the VAT as output tax in box 1 and, subject to normal recovery rules, reclaims the same amount as input tax in box 4, while boxes 6 and 7 record the net values as usual. The supplier records the net sale with no output VAT at all, following the treatment confirmed in HMRC’s technical guide.
How do I calculate the reverse VAT charge?
In the earlier example, a ÂŁ4,200 net invoice at 20% gives ÂŁ840 of VAT that the customer enters in box 1 and reclaims in box 4 where recovery applies.
Is the domestic reverse charge the same as the overseas reverse charge?
No. The construction domestic reverse charge is a UK-specific rule for CIS-reportable building work between two VAT-registered UK businesses, separate from the reverse charge used for cross-border services from overseas suppliers. Confusing the two can lead to the wrong VAT-return boxes being used, so treat construction reverse-charge rules on their own terms.
Need help?
If you’d like a second opinion on whether the reverse charge applies to your contracts, or help setting up your software correctly, get in touch and I’ll talk you through the next steps.
