Peppol is already required for NHS suppliers, and the UK has confirmed a nationwide e-invoicing mandate from April 2029. Invoicier gets you sending and receiving structured e-invoices in minutes.
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Is e-invoicing mandatory in the UK?
Not generally yet, but it is confirmed. There is no UK-wide e-invoicing mandate today, but the government has confirmed mandatory B2B and B2G e-invoicing via Peppol from 1 April 2029. Peppol is already required for NHS suppliers, so much of the groundwork is in place.
Peppol (Pan-European Public Procurement On-Line) is the standard network for exchanging structured electronic invoices. The UK has used it for years in the health sector, NHS England has required suppliers to send Peppol e-invoices in the Peppol BIS Billing 3.0 format since 2019.
In February 2025 the government ran a public consultation on e-invoicing, and it has since confirmed the direction: a decentralised four-corner model built on EN 16931 and Peppol BIS Billing 3.0, using the AS4 transmission protocol, with no central clearance in the first phase. Mandatory B2B and B2G e-invoicing for VAT-registered businesses is confirmed for 1 April 2029.
Because the UK is standardising on Peppol, adopting it now covers NHS invoicing today and puts you ahead of the 2029 mandate, while keeping you compatible with trading partners across Europe. A full implementation roadmap is expected at Budget 2026.
UK e-invoices are exchanged as structured XML over the Peppol network. Invoicier generates and validates them for you.
On the Peppol network, UK organisations are addressed by a participant identifier built from their official registration numbers.
NHS England requires suppliers to send e-invoices over Peppol in the BIS Billing 3.0 format.
HMRC and the Department for Business and Trade consult on the future of UK e-invoicing.
Outside the NHS, e-invoicing is voluntary but growing, with Peppol the emerging standard.
Mandatory e-invoicing via Peppol for VAT-registered B2B and B2G transactions takes effect.
No ERP migration, no paperwork. Sign up and start sending and receiving.
Sign up with your email. No credit card, no lengthy onboarding.
Enter your company details and VAT number, and we register your Peppol ID for you.
Create a Peppol BIS e-invoice and send it to any NHS body, business, or international recipient.
Incoming Peppol e-invoices arrive in your dashboard. View, track, and manage them in one place.
Peppol-compliant e-invoicing with none of the ERP complexity, built for businesses of any size.
Send and receive on the official Peppol network, fully aligned with EN 16931 and local rules.
No ERP migration or paperwork. Sign up, add your company number, and send your first invoice.
We register your participant ID for you so you can send and receive on the network.
Invoice any Peppol recipient across 50+ countries from one place, with no extra setup.
Get ahead of the 2029 mandate today. It takes minutes.
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