Invoicing in the United Kingdom

How to invoice in the United Kingdom

The fields a UK invoice actually needs, the bank details your client will look for, and how JupiterInvoice handles GBP, VAT, and BACS without making you reformat anything.

The shape of a UK invoice

HMRC has a published list of what a UK invoice should contain. The substance does not change often. In plain English:

  • A unique, sequential invoice number
  • Your business name and address (and company number if you are a Ltd or LLP)
  • The customer's name and address
  • A clear description of the goods or services
  • The date the invoice was issued and (if different) the date of supply
  • The amount being charged, and the total
  • If you are VAT-registered: your VAT number, the VAT rate applied to each line, and the VAT amount

For the authoritative current rules, see HMRC: invoices, what they must include.

The UK-specific fields JupiterInvoice handles

GBP, sort code, account number

Your bank details surface on every invoice with click-to-copy. Sort code in the 6-digit XX-XX-XX format, 8-digit account number, BACS reference field.

VAT, properly

Tax label is editable, defaults to VAT for UK senders. Per-line VAT rates and a clean subtotal/VAT/total breakdown so your client can post it straight to their books.

International when you need it

IBAN and BIC fields for clients paying you from outside the UK. Live or historical FX if the invoice is in a non-GBP currency.

Learn more →

The bits that actually slow UK invoices down

The format is not the hard part. The hard part is the conversation around the invoice.

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PO numbers AP forgot to mention

Larger UK buyers (especially in the public sector and big corporates) need a PO number on every invoice. JupiterInvoice lets your client add or update the PO number on the invoice itself, no email back-and-forth.

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The wrong billing entity

Group structures mean your client might actually be billed by a different Ltd than the one you contracted with. Recipients can fix the billing entity directly. You see the change and can revert.

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Slow-paying Net 30

Most UK B2B invoicing is Net 30 by default. Faster Payments lets your client settle in minutes once they have approved it. Make the bank details obvious and the wait gets shorter.

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Cross-border VAT confusion

Post-Brexit reverse-charge VAT for B2B EU customers trips up plenty of UK freelancers. We do not hide tax behind a dropdown: you set the rate and label per line.

UK invoicing FAQ

Do I need to be VAT-registered to send an invoice in the UK?
No. Anyone running a business in the UK can issue an invoice. VAT registration is a separate question and depends on your turnover. If you are not VAT-registered, your invoice should not show a VAT number or a VAT amount.
What is the difference between an invoice and a VAT invoice?
A VAT invoice is the format HMRC requires when the seller is VAT-registered. It includes the seller's VAT number, the VAT rate applied, and the VAT amount per line. If you are not VAT-registered, you issue a plain invoice without those fields.
Do UK invoices have to be sequential?
Yes. Invoice numbers should be unique and sequential so HMRC can audit them. JupiterInvoice auto-increments by default and lets you set a custom prefix or starting number.
Can I invoice a UK client in a foreign currency?
Yes. There is no rule that UK invoices must be in GBP. If you are VAT-registered, you typically need to also show the VAT amount converted to GBP at the appropriate exchange rate. JupiterInvoice supports multi-currency invoices and a historical FX rate by invoice date.
What payment methods should I put on a UK invoice?
Sort code and account number for BACS or Faster Payments cover almost every UK B2B payment. IBAN and BIC for international clients. Many freelancers also accept card (Stripe, GoCardless) and PayPal as fallbacks.
How long does an invoice have to be kept in the UK?
HMRC generally requires business records, including invoices, to be retained for a number of years after the end of the tax year. JupiterInvoice keeps every version of every invoice indefinitely, so the audit trail is there if you need it.

A note on what this is. This page is a plain-English orientation to invoicing in the United Kingdom, not tax advice. The authoritative source for current rules is HMRC. For anything that materially affects your tax position, talk to a UK accountant.

Send a UK invoice in two minutes

Free. No signup. Set your VAT number once and every future invoice carries it. Save your sort code and account number once and clients click-to-copy them straight into their bank.

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