English English

MENU

3 minute read

E-invoicing in the UK - Compliance Now Enforced

What is e-invoicing and why is it important?

To better understand the importance of the Directive and what it means for the UK we should take a closer look at the definition of an e-invoice. Within the context of business-to-business (B2B) commerce and trade, the definition of an e-invoice is that it should contain data from the supplier in a format that can be integrated into the buyer’s Accounts Payable (AP) system, ERP or other backoffice system, without requiring additional data input from the buyer’s AP administrator.

Any B2B process where invoice data is exchanged, should be standardized and automated for true e-invoicing to be run efficiently. To be able to achieve this, invoice data should be structured and issued in an electronic format such as EDIFACT, ANSI X12 or XML or by using standard internet-based web forms. For clarity, unstructured invoice data issued in PDF or Microsoft Word formats, paper invoices sent via fax machines, or scanned paper invoices shared via emails are not true e-invoices.

Governments, particularly the European Union and its member states, are increasingly making e-invoicing mandatory. This addresses the complexity caused by the use of varied e-invoicing formats across countries or businesses through the introduction of a standard. All too often, using varied formats cause additional operating costs and overhead for businesses, public contracting bodies and contracting entities, which can be overcome with a single standard. E-invoicing also makes auditing and tax compliance more accurate and efficient by linking directly with a company’s ERP system.

White Paper - E-invoicing in Europe

More about the Directive in the European Union and the consequences for the UK

As of May 2019, the UK implemented The EU Directive on e-invoicing in public procurement through The Public Procurement (Electronic Invoices etc.) Regulations 2019. This is an interesting decision in time where the UK is in the process of leaving the European Union and Article 7 of Directive 2014/55 on electronic invoicing in public procurement states that:

“Member States shall ensure that contracting authorities and contracting entities receive and process electronic invoices which comply with the European standard on electronic invoicing whose reference has been published pursuant to Article 3(2) and with any of the syntaxes on the list published pursuant to Article 3(2).”

According to the Directive: “The Regulations require contracting authorities and entities to include in their contracts an express term which obliges them to accept and process undisputed invoices that comply with the technical e-invoicing standard. “

The requirements apply to central government bodies with immediate effect, while local government and utilities have until 18 April 2020 to comply “but may voluntarily do so earlier”, stated the PPN.

Questions about e-invoicing in the UK?

Do you still have questions in regard to e-invoicing in the UK? Contact us – we are happy to help!

Are you aware of our free XML/Peppol document validator?

To help those in need of a simple and easy way to validate formats and file types, from CII (Cross-Industry Invoice) to UBL, we’ve created a free online validator.

Subjects

most read

Keep on reading

12 minute read

E-invoicing in Poland: 7 topics you need to know in 2026

E-invoicing in Poland is moving to mandatory KSeF clearance in 2026. Key dates, formats, and steps to prepare for compliance.

10 minute read

Taiwan e‑invoicing (eGUI) explained: what businesses need to know

Taiwan e‑invoicing (eGUI) is mandatory for B2B and B2C. This Taiwan e‑invoicing guide explains key rules, deadlines and integration options for businesses.

1 minute read

Singapore e-invoicing: the complete guide for businesses

Discover how Singapore’s GST InvoiceNow Requirement works, who’s in scope, which documents are affected and how to comply via InvoiceNow, PINT SG and IMDA‑accredited Access Points.

1 minute read

Everything you need to know about e‑invoicing in New Zealand

If you invoice New Zealand government agencies, you need to be ready for Peppol e‑invoicing. New Zealand is steadily building a digital economy where invoices move as structured data, not...

8 minute read

E-invoicing (and e-reporting) in Croatia: A Guide to Fiscalisation 2.0

From January 2026, Croatia mandates domestic B2B e-invoicing under Fiscalisation 2.0, alongside new fiscalisation and e-reporting obligations. This guide explains how the system works in practice, what businesses must prepare...

9 minute read

Serbia’s E-invoicing and E-transport Requirements Explained

In this article we explore Serbia e-invoicing and e-transport requirements, including who’s affected, key deadlines, and how to stay compliant.

7 minute read

Australia E‑invoicing: Rules, Formats and Timelines

Learn how Australia e‑invoicing works via Peppol, who must comply, required IDs, formats (PINT A‑NZ) and how to connect through accredited access points.

8 minute read

Peru E-invoicing Explained: What Businesses Need to Know

Your guide to e-invoicing in Peru. Learn how the system works, key SUNAT requirements, and what enterprises need to stay compliant.

6 minute read

Peppol Corner Models Explained

Learn how and why Peppol’s network architecture has evolved to the current five-corner model.

6 minute read

How to Build a Successful E-invoicing Request For Proposal (RFP)

Learn what crafting an effective e-invoicing request for proposal (RFP) involves and how to master the RFP process.

8 minute read

21 Must-Ask E-invoicing RFP Questions

Explore our helpful list of e-invoicing RFP questions to ask and learn what to look for when evaluating e-invoicing vendors.

7 minute read

Simplifying e-invoicing compliance: a practical approach

Simplify e-invoicing compliance with scalable strategies that cut risk, reduce manual work, and ensure audit-ready invoicing at scale.

1

Looking for something? 👀

E-invoicing essentials survival pack

Everything you need to know about e-invoicing in one place, including:

  • Detailed regulation
    breakdowns
  • Popular webinar recordings
  • Insightful white papers
  • Helpful Q&A videos

🚨 Vos questions sur la réforme, nos réponses en direct

Participez à une session interactive dédiée à la facturation électronique en France. Nos expertes ecosio répondent à vos questions en temps réel.
Mardi 17 mars 2026 · 11h (CET) · 40 min