Reverse charge VAT shifts the responsibility for accounting for VAT from the supplier to the VAT-registered customer. Instead of the supplier charging VAT on the invoice, the customer self-accounts for it on their own VAT return. It crops up in three quite different settings: cross-border B2B services, the CIS domestic reverse charge in construction, and a small set of high-risk goods like mobile phones and computer chips. Each has its own logic and its own bookkeeping rhythm, and getting the VAT codes right the first time saves a great deal of correction later. This guide sits within our wider tax and VAT hub for UK businesses.
When the reverse charge applies
The reverse charge is not a single rule but a family of anti-fraud and place-of-supply measures. The most common scenarios are summarised below.
| Scenario | Who applies it | Why |
|---|---|---|
| Services bought from an overseas supplier | UK VAT-registered buyer | Place of supply is the UK |
| Construction services within CIS | UK VAT-registered customer of a subcontractor | Anti-fraud measure |
| Mobile phones and computer chips above the de minimis threshold | UK buyer of bulk wholesale | Anti-fraud (missing trader) |
| Wholesale gas, electricity and telecoms | UK buyer | Anti-fraud |
In every case the supplier issues an invoice without VAT but with a clear note such as “Reverse charge: customer to account for VAT to HMRC”. If you receive an invoice that should carry the reverse charge but instead shows VAT, query it before paying — you cannot reclaim VAT that should never have been charged.
Bookkeeping under the reverse charge
Reverse charge entries are VAT-neutral for fully taxable businesses, because the buyer simultaneously declares output VAT (Box 1) and reclaims the same amount as input VAT (Box 4). The net effect on the VAT payment is nil, but the entries must still be made so the return is complete and accurate.
| VAT return box | Reverse charge service from an overseas supplier |
|---|---|
| Box 1 (output VAT) | + VAT at the current rate on the net value |
| Box 4 (input VAT) | + same amount (if recoverable) |
| Box 6 (total sales ex VAT) | unchanged |
| Box 7 (total purchases ex VAT) | + net amount |
| Net VAT impact | nil (if fully taxable) |
If the business is partially exempt, the recovery in Box 4 is restricted, leaving a real VAT cost — a common surprise for charities, financial services firms and other organisations that make exempt supplies. Our guide to VAT partial exemption explains how the recoverable proportion is calculated and why the reverse charge can quietly increase a partly exempt entity’s VAT bill.
CIS domestic reverse charge
The construction industry version is mandatory for VAT-registered subcontractors supplying VAT-registered contractors that are not end users. The subcontractor invoices net of VAT and writes “Reverse charge: customer to pay VAT to HMRC”, and the contractor then reports the VAT on its own return. The measure was introduced to stop subcontractors collecting VAT and disappearing before paying it over to HMRC.
Practical points to get right before applying it:
- Confirm your customer is VAT-registered and CIS-verified before applying the charge
- Apply it only to standard- and reduced-rate supplies, not zero-rated work
- Obtain an end-user statement from customers who occupy the building, as supplies to end users fall outside the reverse charge
- Watch joint contracts where some services are reverse-charged and others are not
- Reflect the change in cash flow forecasts; subcontractors lose the VAT cash flow benefit they previously enjoyed
- Update invoice templates and accounting software VAT codes so the right treatment is applied automatically
If construction is your main trade, read our Construction Industry Scheme guide alongside this article, because the CIS deduction rules and the VAT reverse charge interact closely.
High-risk goods and other variants
Beyond construction, the reverse charge targets goods that have historically been used in missing trader fraud. Wholesale supplies of mobile phones and computer chips fall within scope once the value of the supply exceeds the de minimis threshold, as do wholesale gas, electricity, telecommunications and certain emissions allowances. These apply only to business-to-business sales between VAT-registered parties; ordinary retail sales to consumers are unaffected. For a broader walk-through of the mechanism across all sectors, see our companion VAT reverse charge overview.
Getting it onto the return
The mechanics are not difficult, but the boxes need to be set up correctly the first time you apply each variant, and the entries flow straight into your VAT return. A few habits keep you safe:
- Use a dedicated VAT code for each reverse charge type so the figures populate Box 1, Box 4 and Box 7 automatically
- Reconcile reverse charge entries each quarter to confirm Box 1 and Box 4 net to nil where they should
- Keep supplier invoices and end-user statements on file in case of an HMRC review
Pair this with the VAT codes in bookkeeping guide and the Making Tax Digital explainer, and cross-check with the HMRC reverse charge guidance.