Construction VAT reverse charge: get the invoice and return right

When does construction reverse-charge VAT apply?

Check whether the service is within the construction reverse-charge rules and whether both businesses meet the relevant conditions. A CIS registration alone does not settle the VAT treatment. The rules cover qualifying standard-rated and reduced-rated construction supplies, not every payment connected with a building project.

Use HMRC's scope guidance to establish what is being supplied. Services such as building, alteration and repair can fall within the rules. Professional services supplied on their own, materials-only sales and supplies of staff by employment businesses need different treatment. Zero-rated construction supplies do not become reverse-charge supplies.

For a supplier, establish the customer's VAT and CIS position and whether it is making onward construction supplies. Then check any valid written end-user or intermediary-supplier notification. Follow the supplier checks before coding the invoice.

Where ordinary VAT rules apply, determine the correct VAT rate or registration treatment separately. “Not reverse charge” does not mean “always charge 20%”. The nature of the work and the supplier's position still matter.

What evidence is needed for an end user?

An end user receives construction services without making onward supplies of those services. A qualifying intermediary supplier has the relevant connection or land interest with an end user. Their written notification allows normal VAT treatment where the conditions are met; the label “main contractor” is not enough.

HMRC accepts notification by post, email or in a contract. Keep it with the business records and make clear which supplies it covers. An email can therefore be valid written evidence when it records the relevant status and supplies.

If an otherwise qualifying VAT- and CIS-registered customer has not supplied a written notification, do not assume end-user treatment from a conversation. Check the circumstances and use the reverse charge where required. HMRC explains the distinction in its end-user and intermediary guidance.

A practical customer file should identify the legal entity, contract, site, services, relevant status checks and the notification relied on. Keep the date and the person who checked it. Review the decision if the customer, contract or supply changes.

What should the reverse-charge invoice show?

Issue a VAT invoice with the normal required details and wording that clearly identifies the reverse charge and the customer's responsibility to account for VAT. Show the VAT amount, or the applicable rate where permitted, without adding that VAT to the amount payable to the supplier.

For this illustrative standard-rated roofing contract, the agreed value is £8,500. The reverse-charge VAT is £1,700 at 20%. Before any separate CIS deduction or contractual adjustment, the customer pays the supplier £8,500, not £10,200.

Suitable wording for this example is “Reverse charge: customer to account to HMRC for VAT of £1,700 at 20%.” The reference to section 55A of the VAT Act 1994 may also be used. The important requirement is a clear reverse-charge statement and the required invoice information, not one compulsory sentence.

See HMRC's construction reverse-charge invoice guidance. Where software cannot show the reverse-charge VAT amount, follow the permitted wording and identification rules. Test the actual PDF sent to the customer, not just the tax code selected on screen.

Where do the amounts go on the VAT return?

The supplier reports the sale without charging output VAT to the customer. The customer accounts for reverse-charge output VAT and can recover input VAT only to the extent allowed by the normal rules. Equal entries are possible, but full recovery is not automatic.

These entries concern this domestic construction reverse charge, not every reverse-charge regime. Use the correct software treatment so the purchase is not also put into the customer's sales total in box 6. Check the domestic reverse-charge return rules when reconciling the draft return.

In the worked example, a customer entitled to full recovery records £1,700 in both box 1 and box 4. With restricted recovery, the allowable box 4 amount can be lower. Partial exemption, where a business makes both taxable and exempt supplies, is one reason to check recovery before assuming a nil net VAT effect.

Keep the invoice, treatment decision and return report together. On the supplier side, match the net sales value to the ledger; on the customer side, confirm that both the liability and any eligible recovery reached the intended period. The HMRC buyer guidance sets out the customer's responsibility.

Does the reverse charge remove CIS deductions?

No. VAT treatment and CIS payment deductions are separate decisions. The reverse charge changes who accounts for VAT; it does not give the subcontractor gross payment status. A contractor may still need to deduct CIS from the relevant payment base.

Take the same £8,500 reverse-charge invoice. If £7,000 is subject to CIS deduction and £1,500 is qualifying directly paid material cost, a verified 20% treatment produces a £1,400 CIS deduction and a £7,100 payment to the subcontractor. The customer still accounts for £1,700 reverse-charge VAT on the full supply. This is an illustration, with no retention or other adjustments.

The material-cost exclusion used for CIS does not remove those materials from the value of a single supply-and-fix transaction for VAT. Check HMRC's CIS deduction rules and our gross payment status guide before deciding the cash amount to send.

How should subcontractors plan for the cash effect?

Forecast the actual receipt after the correct VAT and CIS treatment, rather than treating the invoice total as available cash. A subcontractor making reverse-charge sales may pay VAT on purchases while collecting none on those sales, which can create a repayment position.

Monthly VAT returns may help a business that regularly claims repayments, but compare the filing work with the cash benefit. HMRC says repayments are usually made within 30 days of receiving the return and can take longer when checks are needed. A monthly filing cycle is not a promise of cash arriving within 30 days of each purchase.

Put a separate repayment line into the forecast, using the filed claim and a cautious expected date. Do not spend an anticipated repayment twice by counting it in both the bank balance and future receipts. Reconcile the amount claimed, any HMRC enquiries and the eventual receipt.

Mixed supplies, changes during a contract, cash accounting and the Flat Rate Scheme can require additional checks. Use the relevant sections of the technical guide linked above and test the actual transaction. Do not apply the construction code to every supplier because one large contract uses it.

A repeatable invoice-to-return check

Use a short approval record before the first invoice and keep the tax decision available to everyone posting or paying it. That is more reliable than expecting the accounts team to reconstruct the customer conversation at quarter end.

1. Identify the supplier, customer, supply and applicable VAT rate.
2. Record the relevant VAT/CIS checks and written notifications.
3. Confirm the invoice wording and the amount payable before CIS.
4. Calculate any CIS deduction separately using the verified status.
5. Match the ledger posting to the VAT-return boxes and tax period.
6. Record corrections with the original invoice and communicate the revised payment amount.

If VAT was charged incorrectly, agree the correction with the supplier and review the affected return position. Do not assume that wrongly charged VAT is recoverable merely because it appears on an invoice. Keep a traceable correction record rather than silently changing an old entry.

Correct treatment also does not settle a missed deadline. The CIS, PAYE and VAT penalty checklist separates overdue returns from unpaid balances. LOYALS Accountants & Business Consultants can combine agreed construction accounting and management reporting so that the tax entries and cash forecast are reviewed together.

For an initial illustration, use our tax calculators. A calculation does not replace the contract, eligibility or verification checks described above.