VAT Invoice UK 2026: Requirement, Template & Format

A VAT invoice is more than just a bill. It shows the VAT charged on a sale and needs to include certain details to be valid and support the customer’s input tax claim, subject to the usual VAT recovery rules. Here is what to include, the different types of VAT invoices, and how to create one in 2026.

Key Takeaways

• There are around 14 details you need to include on a full VAT invoice, including your VAT number and the VAT breakdown.
• There are three types: full, simplified, and modified, each suited to a different kind of sale.
• Sales of £250 or less can use a simplified invoice, which skips several fields the full version requires.
• The tax point is where the 30-day period starts. Invoices are generally due within 30 days of it.
• If you're not VAT registered, you can't issue a VAT invoice.

What is VAT Invoice in UK?

A VAT invoice, sometimes called a VAT tax invoice, sets out the VAT a business has charged on a sale. Issued only by VAT-registered businesses, it's what lets a VAT-registered buyer reclaim that VAT as input tax.

VAT Invoice Template in UK

There’s no fixed template you have to use for a VAT invoice. The layout is up to you, as long as you include all the information HMRC requires.

What information should a VAT invoice include?

A full VAT invoice, the most common type and the one set out under Regulation 14 of the VAT Regulations 1995, needs to show the following:

• A unique, sequential invoice number
• The date of the invoice and the tax point, if they are different
• Your business name, address, and VAT registration number
• The customer's name and address
• A clear description of the goods or services supplied
• The quantity and unit price, excluding VAT, for each item
• The VAT rate that applies to each line, and the type of supply, such as sale, hire, or rental
• The net amount, the VAT amount, and the total, broken down by rate where more than one applies
• Any discount offered, shown clearly rather than folded silently into the price
• Where zero-rated or exempt items appear alongside taxable ones, their values shown separately, with no VAT charged against them

Some transactions bring extra requirements. A reverse charge sale needs the words "reverse charge" on the invoice. A self-billed invoice needs to say "self-billing." If a margin scheme applies, that has to be stated too.

Types of VAT invoices in UK

Three invoice types cover nearly every situation.

Full VAT invoice- This is the standard version, and the one to reach for by default. If you're looking for a VAT invoice sample to model yours on, a full invoice is the right one to copy, since it's required for most B2B sales and gives your customer everything they need to reclaim input VAT with confidence.

Simplified VAT invoice- Set out under Regulation 16 and available for supplies of £250 or less, including VAT. It drops the customer's details and doesn't split out the net and VAT amounts separately, showing only the VAT-inclusive total and the rate that applies. A till receipt from a VAT-registered shop is a common example. One exception applies to Northern Ireland: if your customer is based in an EU member state, a simplified invoice isn't an option.

Modified VAT invoice- Used for retail sales above £250, with the customer's agreement. It carries the same fields as a full invoice, but shows amounts inclusive of VAT alongside the VAT figure itself.

How do I create a VAT invoice?

Step 1: Confirm you're VAT-registered- Only registered businesses can legally issue a VAT invoice, so this comes first.

Step 2: Choose your invoice type- Full invoices work for almost every situation. Reach for simplified or modified only where the transaction genuinely fits.

Step 3: Add your business details- Include your business name, address, and VAT number.

Step 4: Add the customer’s details- Add the customer’s name and address. You can skip these on a simplified invoice.

Step 5: Add a unique invoice number- Use a clear numbering system and make sure you don’t repeat numbers.

Step 6: List what you sold- Include the item or service, quantity, unit price, and enough detail to show exactly what you supplied.

Step 7: Apply the correct VAT rate- Show the rate per line, then the net, VAT, and total amounts.

Step 8: Issue it within 30 days of the tax point- Late invoicing is one of the more common compliance slips businesses make.

What are the VAT invoice requirements?

Beyond the fields themselves, a few rules govern how VAT invoices work in practice.

• Timing- Invoices are due within 30 days of the tax point, generally the date goods are delivered or services completed, though an earlier payment or invoice date can shift it.
• Currency- Invoices can be issued in any currency, but the VAT payable must also appear in sterling, converted using an HMRC-approved rate.
• Language- You can invoice in any language, but you must be able to provide an English translation within 30 days if HMRC asks for one.
• Retention- VAT invoices and records must be kept for at least six years.
• Digital records- Making Tax Digital doesn't change what has to appear on an invoice, but it does require the data behind it to be captured digitally in MTD-compatible software.

How to Issue VAT Invoices for International Transactions

Selling across borders adds a layer to the usual rules.

For B2B sales where the customer accounts for VAT themselves, add a reverse charge reference to the invoice. Goods sold from Northern Ireland to VAT-registered EU businesses are the one case needing the customer's VAT identification number too. Most other cross-border B2B sales follow standard UK invoicing rules, with reverse charge wording added where it applies. The sterling conversion and six-year retention rules stay the same regardless of destination.

Benefits of VAT Invoices

A properly issued VAT invoice does more than satisfy a legal requirement.

• It lets your VAT-registered customers reclaim input tax without delay or dispute.
• It gives you clean records for your own VAT return, cutting the chance of an error.
• It protects you in an HMRC inspection, since the paper trail shows exactly what was charged and why.
• It reads as a mark of a properly run business, which matters when you're dealing with larger commercial customers.

Conclusion

A VAT invoice is a fairly simple document once you know which fields it needs and which type fits your sale. Stick to full invoices as your default, reserve simplified and modified formats for retail transactions that genuinely qualify, and issue everything within 30 days of the tax point. Get that structure right, and VAT invoicing becomes routine rather than a recurring source of errors.