VAT Invoice Requirements in the UK: What HMRC Expects

If you are VAT-registered in the UK, you must issue a VAT invoice for taxable supplies to other VAT-registered businesses — and the format is not optional. HMRC specifies exactly what a valid VAT invoice contains. Missing details can delay your customer’s input-VAT reclaim, which usually means delayed payment for you.

What a full VAT invoice must show

• A unique, sequential invoice number
• Your business name, address and VAT registration number
• The invoice date and the time of supply (tax point) if different
• The customer’s name and address
• A description of the goods or services supplied
• For each item: the unit price excluding VAT, quantity, VAT rate and amount payable excluding VAT
• Any cash discount offered
• The total VAT charged and the total amount payable

Simplified and modified invoices

For retail sales under £250 (including VAT) you may issue a simplified invoice showing your details, the tax point, a description, the VAT rate and the gross amount. Between £250 and higher-value retail sales, a modified invoice showing VAT-inclusive amounts is acceptable if the customer agrees.

Which VAT rate applies?

The standard rate of 20% covers most goods and services. The reduced rate of 5% applies to domestic fuel, children’s car seats and certain residential conversions. Zero rate (0%) covers most food, books, newspapers and children’s clothing — zero-rated sales still appear on VAT invoices and returns. Exempt supplies (insurance, education, health) are outside the VAT invoice system entirely.

Not VAT-registered? You must not charge VAT or mention VAT on your invoices at all — a plain invoice is correct until your taxable turnover crosses the registration threshold.

The easy way to get it right

Our UK invoice generator applies the correct VAT rate with one tap, formats amounts in pounds, and gives you space for your VAT number in the sender block. Fill it in once — your details are remembered in your browser for next time.