The eInvoicing landscape in the European Union: A complete guide

eInvoicing in a nutshell

What is eInvoicing?

eInvoicing refers to generating, transmitting, receiving, and storing invoices in a structured digital format, typically XML or UBL. Unlike traditional paper invoices or unstructured digital formats like PDFs, eInvoices let you leverage automated processing, reducing manual errors and inefficiencies.

Five key differences between traditional invoicing and eInvoicing

For more on automation, check out the article on our smart data extraction with OCR technology to learn how it improves accuracy in invoice processing.

And what if you’ve already digitised your accounting to save time and cut costs? Is there a difference between eInvoicing and digital invoicing?

eInvoicing vs. digital invoicing

• Standardisation: eInvoicing employs a standardised format, ensuring compatibility across your different systems. In contrast, digital invoicing may use various non-standard formats, such as PDFs, which can vary from supplier to supplier, complicating processing and integration
• Automation: eInvoicing supports full automation from creation to processing, unlike digital invoicing, which may still involve manual steps
• Compliance: eInvoicing is often regulated and follows strict compliance standards, unlike some digital invoicing methods

In short, every eInvoice is digital, but not every digital invoice is an eInvoice. A PDF invoice may still require manual checks or OCR, while a structured eInvoice is designed for system-to-system exchange and automated processing.

The biggest benefits of eInvoicing for finance teams

eInvoicing provides a clear and auditable trail of transactions, reducing the risk of fraud and error. Additionally, automated invoice processes will reduce your administrative workload, allowing your business to focus on more impactful activities.

Standardised eInvoicing also facilitates seamless cross-border transactions, further promoting international trade within the EU. You can see all the key benefits in detail below:

Faster payment processes

When invoice data arrives in a structured format, supplier invoices can move faster through validation, approval, payment, and ERP sync. This reduces the time your AP team spends on manual data entry and error correction, while giving finance better control over payment timing.

Faster processing can also keep invoice workflows moving even as transaction volumes grow.

Stronger compliance and audit trails

EInvoicing helps create a clearer record of how invoices are received, validated, processed, approved, and stored. This gives finance teams a more reliable audit trail and makes it easier to respond to compliance, tax, and internal control questions. Additionally, this process can reduce fraud risks as it makes details around the sender, the invoices and transaction records easier to verify. We also need to be mindful that eInvoicing does not replace internal controls. The companies do need to have certain internal layers of protection beyond what eInvoicing offers. Some of them include supplier checks, approval workflows, segregation of duties, and payment controls. In Payhawk, four-eyes approval can hold a change to a supplier's bank details until a second person approves it, so a valid eInvoice can't be paid to the wrong account.

Standardised eInvoicing can also make cross-border invoice processing easier, especially for companies operating across several EU markets. As country mandates expand, finance teams need invoice workflows that can support different local requirements without creating separate manual processes for each entity.

Less manual AP work

EInvoicing can help the financial team spend less time on repetitive admin, instead focusing on strategy and reviewing the exceptions. This happens when instead of manual data input and data review through email attachments, they receive the structured data from the invoice directly.

Fewer invoice errors and cleaner ERP data

As a continuation on the previous point, structured invoice data means that key details are captured more consistently and thus easier and faster to verify, even before the invoice moves through the AP process.

Better invoice visibility a and approval tracking

Traditional invoice processes often make it hard to see where an invoice is stuck. It may be waiting in someone’s inbox, missing key details, or delayed because the right approver has not reviewed it yet.

With eInvoicing connected to your AP workflow, your team can track invoices more clearly from receipt to approval and payment. This gives finance better visibility over pending liabilities, upcoming cash outflows, and bottlenecks in the approval process.

Environmental sustainability

eInvoicing can even boost your sustainability efforts. If you have previously relied on traditional (paper) invoice methods, eInvoicing will quickly reduce your paper consumption.

Digital transformation doesn’t need to begin and end with eInvoicing. Find out more about our CO2 reporting, expense management, and spend control features, all of which further enhance transparency and efficiency.

eInvoicing regulations in Europe

The European Union has introduced several directives to promote and standardise eInvoicing across member states. The most notable is the Electronic Invoice Directive 2014/55/EU, which mandates eInvoicing in public procurement across the EU. This directive aims to harmonise eInvoicing processes, ensuring interoperability and reducing administrative burdens. Italy was the first EU country to make B2B eInvoicing mandatory, in 2019, routing every domestic invoice through its national exchange system, SDI.

In brief: The development of eInvoicing in the EU started with mandatory electronic invoicing for B2G transactions, where suppliers to government sectors had to use national systems. This evolved into the Business-to-Business (B2B) space, with some countries like Greece requiring real-time invoice reporting to national systems before implementing a transfer layer to manage invoice exchanges between issuers and receivers.

Other countries, such as France and Romania, bypassed the real-time reporting phase and directly established the transfer and status tracking mechanisms.

Need to know: Mandatory B2B eInvoicing timelines and regulations in key countries.

You can find more information for all European countries' mandates and key dates in this comprehensive eInvoicing country factsheet.

How to implement eInvoicing

The requirements are quite straightforward so far — but what about the implementation? And how can you ensure you get it right?

1. Choose the right eInvoicing solution
   Select a solution that’s compatible with your existing systems, complies with local regulations, and can scale with your business needs.

2. Ensure legal compliance
   Make sure your eInvoicing solution meets all legal requirements and includes mandatory fields like supplier details, VAT information, and invoice amounts.

3. Address technical barriers
   Anticipate challenges such as system integration, data security, and employee training and address them proactively.

4. Securing eInvoices
   Implement measures like encryption, secure data transmission, and access controls to protect sensitive information.
   Need help choosing the right finance tools? Check out our accounts payable features and how they integrate with your financial systems.

The future of eInvoicing in Europe: Proposed changes and updates

The European Union is continuously evolving its eInvoicing regulations, with upcoming changes expected to further streamline processes and enhance compliance across member states. One of which includes:

What ViDA means for eInvoicing in Europe

The EU’s VAT in the Digital Age package, known as ViDA, has moved the EU closer to a more harmonised approach to digital VAT reporting and eInvoicing. For finance teams, the main takeaway is that eInvoicing is moving from a country-by-country compliance issue toward a broader European operating model.

Companies with entities in multiple EU markets should avoid one-off local fixes where possible. Instead, they should prepare for scalable invoice workflows that can support different country rules, structured formats, tax IDs, reporting requirements, and ERP integrations.

Stay updated on the latest features that support multi-entity accounting here.

eInvoicing networks Payhawk connects to

Payhawk receives eInvoices through five networks. Each entity connects to the one its country uses.

How to plan your eInvoicing transition with Payhawk

Payhawk helps finance teams bring eInvoices into the same AP workflow they already use for supplier invoices, approvals, payments, and ERP sync. Through its partnership with Invopop, Payhawk offers an eInvoicing platform that supports compliant eInvoice receipt and processing while keeping AP controls inside one finance platform.

Each entity connects to its own network (PPF in France, KSeF in Poland, SDI in Italy, Finvoice in Finland, or Peppol across Europe), and invoices arrive as structured data in one place. From there, each invoice is validated, routed to the right owner, reviewed, approved, coded, paid and synced with your ERP. For groups with entities in several countries, that means one AP process across every eInvoicing network, not a different tool per market. You can learn more about our capabilities in this eInvoicing FAQ.

Looking ahead

At Payhawk, we’re committed to being your trusted partner throughout this transition. Our focus is on developing solutions that not only simplify your financial workflows but also keep you ahead of evolving regulatory requirements.

Ready to simplify your company’s expense management? Talk to one of our experts to learn more about how eInvoicing will affect your business.