Why a Valid VAT Invoice Is Essential If You Want to Reclaim VAT

Nearly half a million pounds. That's how much one UK business faced in disallowed input VAT when it couldn't produce a valid VAT invoice to support its claims. If your business regularly reclaims VAT on purchases, this case is a wake-up call worth five minutes of your time.

The £470,894 lesson: what happened

In Plat UK Limited v HMRC [2026] UKFTT 999 (TC), a company had been buying luxury goods from well-known UK retailers, including Harrods, before exporting them overseas. HMRC disallowed £470,894 of input VAT because the company did not hold compliant VAT invoices when it made its claims.

The business appealed to the tax tribunal, arguing that HMRC should exercise its discretion and accept alternative evidence instead. The tribunal dismissed the appeal. The documents did not adequately establish that the supplies had been made to the company, rather than its director, and the tribunal upheld HMRC's refusal to accept them.

The lesson is simple: a VAT invoice is not just paperwork. It is the evidence that normally supports your right to reclaim VAT.

HMRC's VAT invoice requirements: evidence for reclaiming VAT

For ordinary UK business purchases, you normally need to:

1. Hold a valid, compliant VAT invoice when you claim input VAT on your VAT return, or
2. Satisfy HMRC that alternative evidence is sufficient, so it agrees to exercise its discretion where the required invoice is missing or defective.

Other types of transaction, such as imports, have their own evidence requirements. Having an invoice also does not make every purchase reclaimable: the normal rules on business use and blocked input tax still apply.

Alternative evidence might sound like a safety net, but don't rely on it. HMRC expects you to try to obtain a proper invoice first. Its VAT guide, sections 19.5.3 to 19.5.5, explains what it considers when evidence is missing or an invoice is invalid.

Three common VAT invoice mistakes that cost businesses money

Looking at how this case unfolded, three avoidable mistakes stand out. Any VAT-registered business could make them.

1. Getting the invoice too late

The company obtained further invoices after submitting the VAT returns. Later paperwork did not automatically validate the earlier claims. Timing matters: obtain the correct invoice before claiming, rather than scrambling to find one afterwards.

If an invoice arrives late, ask your accountant when the VAT can properly be claimed and whether an earlier return needs correcting. Do not assume either that the original claim is now valid or that the VAT is permanently lost. The claim period, time limits and circumstances all matter.

2. Descriptions that don't meet HMRC's standard

A valid VAT invoice must include a description sufficient to identify the goods or services supplied. Vague wording can leave HMRC unable to establish what was purchased, even where money genuinely changed hands.

For a full VAT invoice, check the supplier's name, address and VAT registration number, the customer's name and address, a unique invoice number, invoice date and tax point, an adequate description, quantities or extent of services, prices excluding VAT, the relevant VAT rates and total VAT payable in sterling. HMRC sets out the full requirements in VAT Notice 700, section 16.3.

3. Trying to combine documents instead of obtaining a proper invoice

In this case, the purchases exceeded £250. The business argued that retailer invoices and till receipts, read together, supplied the required information. The tribunal rejected that approach on the facts of the case.

Do not assume an order confirmation, receipt and bank statement together amount to a compliant invoice. Ask the supplier for one that meets the relevant requirements.

There is an important exception for smaller purchases. For eligible transactions totalling £250 or less, including VAT, a simplified VAT invoice can be sufficient. A till receipt may qualify if it includes the supplier's name, address and VAT registration number, the tax point, a description identifying the goods or services and, for each VAT rate, the total amount payable including VAT and the rate charged.

Why this matters for every VAT-registered business

The right to reclaim VAT isn't just about proving you spent the money. It is also about showing that the supply was made to your business and meeting the evidence requirements for the claim.

For any business making significant VAT-reclaimable purchases, whether stock, equipment, services or goods for export, poor invoice management is a real financial risk, not just an administrative inconvenience.

VAT invoice checklist: protect your business before you file

Before submitting your next VAT return, ask:

• Do we hold the right evidence for every purchase we are reclaiming VAT on, rather than just an order confirmation or bank statement?
• Does each invoice identify the goods or services supplied, the supplier and, where required, our business as the customer?
• Does the invoice meet the full or simplified invoice requirements, depending on the transaction?
• Do we have the evidence before claiming, rather than chasing it afterwards?
• Have we checked that the VAT is actually recoverable, including any personal use or restrictions?
• Have we saved a readable copy with our bookkeeping records?

Building these checks into your purchasing and bookkeeping process now is far cheaper than fighting HMRC over a disallowed claim later.

Frequently asked questions

What makes a VAT invoice valid under HMRC rules?

A full VAT invoice must contain the information required by the VAT Regulations, including the supplier's details and VAT registration number, the customer's name and address, invoice number and dates, sufficient details of the goods or services, values and VAT information. Eligible purchases of £250 or less including VAT can use a simplified invoice with fewer details. Missing information can make an invoice non-compliant even if the purchase is genuine.

Can I reclaim VAT without a valid invoice?

For ordinary UK purchases, HMRC may accept alternative evidence at its discretion if it is satisfied that the conditions for input tax recovery are met. This is not guaranteed. First ask your supplier for a compliant invoice and speak to your accountant before relying on other documents. Different transactions, such as imports, have different evidence rules.

What happens if I get a VAT invoice after I've already filed my return?

A later invoice does not automatically validate an earlier claim made without the required evidence. It may still support a claim in an appropriate period, subject to the rules and time limits. Ask your accountant whether to claim on a later return or correct an earlier one, and whether HMRC's discretion is relevant to the original claim.

Can a receipt substitute for a VAT invoice?

Sometimes. For eligible purchases totalling £250 or less including VAT, a receipt can qualify as a simplified VAT invoice if it contains all the required details. An ordinary card receipt or a receipt without the supplier's VAT registration number is not enough. For higher-value purchases, request a full VAT invoice rather than relying on several documents to fill the gaps.

Get your VAT invoices reviewed before HMRC does

If your business makes substantial VAT-reclaimable purchases, it is worth reviewing your invoicing and record-keeping processes now, rather than discovering a problem during an HMRC compliance check.

Get in touch with our team to discuss your VAT invoices, bookkeeping and VAT returns. We will help you understand what support your business needs.

Sources and further reading

• HMRC VAT guide, VAT Notice 700, particularly sections 16 and 19.5.
• Plat UK Limited v HMRC: 2026 tribunal case commentary.

This article is for general information only and does not constitute tax advice. It reflects guidance checked on 3 October 2026. For guidance on your specific circumstances, please contact us directly.