Key takeaways
- Under the VAT in the Digital Age (ViDA) package, e-invoicing becomes the default for cross-border B2B sales in the EU from 1 July 2030. Several EU countries, including Belgium, Germany, France and Poland, already require it for domestic sales, using standards like EN 16931 and PEPPOL.
- Benefits include faster payments, cost savings, and greater accuracy, with automated systems reducing manual errors and improving efficiency.
- Compliance requires secure storage, recipient consent where e-invoicing is not mandatory, and adherence to EU legal standards, including eIDAS and national regulations.
In short: E-invoicing means sending invoices as structured digital data instead of on paper. It saves time and money and gets you paid faster. Several EU countries already require it, and it becomes the default for cross-border B2B sales in the EU from July 2030. In the EU, it is governed by the VAT Directive, Directive 2014/55/EU, the EN 16931 standard and national laws.
Businesses across the European Union (EU) are moving from paper invoices to electronic invoicing (e-invoicing). The switch brings many benefits. Work gets faster, there is less harm to the environment and payments come in sooner.
As e-invoices become more common, you need to understand how they work and what the law says in the EU. This guide covers e-invoicing in the EU from start to finish. It explains the benefits, the legal rules and how to make the switch smoothly.
What is an electronic invoice?
E-invoicing means swapping invoices in a structured digital format instead of on paper. You can send, receive and process e-invoices electronically. This makes the whole process smoother, from creating the invoice to getting paid.
The EU sees the benefits of e-invoicing and has taken big steps to promote it. Its VAT in the Digital Age (ViDA) package was adopted in March 2025. Under ViDA, e-invoicing becomes the default for cross-border B2B sales within the EU from July 1, 2030.
EU countries can also make e-invoicing mandatory for domestic sales without asking the EU first. Several already have. Belgium, Germany, France and Poland are among them. We cover this in more detail in Guidance on Germany’s 2025 E-Invoicing Mandate Released. Greece is another example: see our guide to B2B e-invoicing in Greece.
What formats can e-invoices use?
E-invoicing means sending invoice data electronically between trading partners. Unlike paper invoices, e-invoices are digital. They usually follow set standards, so software can process them automatically.
In the EU, e-invoices follow the European standard EN 16931. It is usually sent as XML, in one of two formats: Universal Business Language (UBL) or Cross Industry Invoice (CII). Read more in our guide: E-Invoicing France: Everything You Need to Know.
You can send e-invoices in several ways, including:
EDI (Electronic Data Interchange): A long-standing method. Invoices are sent and received in a standard format through private networks or Value-Added Networks (VANs).
XML (Extensible Markup Language): XML e-invoices use structured data, so both people and machines can read them easily.
PDF/A3 (Portable Document Format): PDF invoices are less structured than XML. But if they have data embedded in them, software can still process them.
Web Forms: Some companies offer online platforms or web portals where you can create and send e-invoices.
PEPPOL (Pan-European Public Procurement Online): PEPPOL is a network that makes cross-border e-invoicing in the EU easier, using a standard format.
What are the benefits of electronic invoicing?
E-invoicing in the EU brings many benefits to businesses, governments and society as a whole:
Efficiency: E-invoicing cuts the time and effort it takes to process and manage invoices. Software can handle data entry, checks and matching. This means fewer errors and faster payments.
Cost savings: You no longer need to print, post or handle paper invoices by hand. That can save you a lot of money compared with paper invoicing.
Faster payments: E-invoices are delivered and processed faster. So you get paid sooner, which helps your cash flow.
Environmental impact: E-invoicing is greener. It uses less paper and cuts the carbon emissions from moving paper invoices around.
Increased accuracy: Automatic data entry means fewer manual errors. Your invoices contain the right details, and your records are better.
Real-time tracking: E-invoicing systems often show the status of each invoice in real time. You can see where your invoices are and act quickly when needed.
Enhanced security: E-invoicing platforms use strong security to protect financial data. This lowers the risk of invoice fraud and unauthorized access.
What are the EU’s legal rules for e-invoicing?
The EU wants more businesses to use e-invoicing. So it has put laws and programs in place to support e-invoicing across member states. The key rules include:
Directive 2014/55/EU: This directive sets a European standard for e-invoicing in public procurement. Public authorities and bodies in the EU must accept and process e-invoices that meet the European Norm (EN).
eIDAS Regulation: The Electronic Identification, Authentication, and Trust Services (eIDAS) Regulation sets the legal rules for electronic transactions, including e-invoicing. It makes sure they are legally valid and recognized across borders.
VAT Directive (2006/112/EC): The VAT Directive sets the legal rules for Value Added Tax (VAT) in the EU. This includes rules on using and accepting e-invoices for VAT.
PEPPOL (Pan-European Public Procurement Online): PEPPOL is a network and a shared framework. It makes it easier to exchange e-invoices and other e-procurement documents across borders.
National Legislation: Each EU member state may have its own laws on e-invoicing. So you must learn the rules in each country where you do business.
How do you make sure your e-invoices comply?
To follow the legal rules, businesses must meet these requirements:
Legibility and authenticity: E-invoices must be easy to read. They must also prove where they came from and that their content has not changed. The data must stay readable for the whole invoicing period.
Consent of the recipient: Where e-invoicing is not mandatory, the recipient must agree to receive e-invoices. This consent can be explicit or implied, depending on national rules. Where a country makes e-invoicing mandatory, consent is no longer needed. Under ViDA, this will also apply to cross-border EU sales from July 2030. You can also read Germany adopts e-invoicing mandate.
Storage requirements: Store e-invoices securely. Tax authorities or other relevant parties must be able to see them for audits. How long you must keep them may vary with the digital reporting rules in national law.
Data privacy: You must comply with the General Data Protection Regulation (GDPR). Any personal data in e-invoices must be processed lawfully and kept safe.
How do you start e-invoicing in your business?
Switching to e-invoicing can be a game-changer for your business. But it takes careful planning. Here are some steps to help you get started:
1. Research and choose the right e-invoicing solution
Do your research and find an e-invoicing solution that fits your needs and meets the EU’s legal rules. Check that it works with your current accounting software. Also think about how easy it is to use, how secure it is and whether it can grow with you.
2. Check whether you need recipient consent
If e-invoicing is not mandatory for a sale, make sure your customer has agreed to receive e-invoices, either explicitly or by implication. Keep records of this consent in case of future audits. Where e-invoicing is mandatory, you don’t need consent.
3. Test and train
Before you go fully live, test the system. Check that it runs smoothly and fits with your current processes. Train your staff to use the platform well, so the switch goes without disruption.
4. Ensure data integrity and security
Put strong security in place to protect your tax data and e-invoices. Keep them accurate and private. Encryption, authentication and access controls are all key parts of data security.
5. Comply with legal requirements
Make sure your e-invoices meet the EN 16931 standard. Also follow any extra rules for your business sector and EU member state.
6. Monitor and evaluate
Once e-invoicing is up and running, watch the process closely. Look for any issues or areas to improve. Check regularly how much time and money you are saving, and keep improving how you invoice.
Conclusion
E-invoicing is a big opportunity for businesses in the EU. It helps you work faster, cut costs and protect the environment. With the legal rules and standards in place, it’s easier than ever to start.
Plan the switch carefully and choose the right e-invoicing solution. Then you can enjoy the many benefits and gain an edge in the EU’s digital market.
Do you need help with your VAT compliance? Book a free call with one of our VAT experts to find bespoke solutions for your business, optimize your VAT costs, and reach millions of new potential customers.
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Frequently asked questions
What is electronic invoicing in the EU?
E-invoicing refers to the process of generating, sending, receiving, and processing invoices in a digital format, rather than using traditional paper-based methods.
In the European Union (EU), e-invoicing is part of the broader initiative to streamline and modernize financial processes for businesses and public administrations.
Is electronic invoicing mandatory in the European Union?
The EU has been promoting and encouraging the adoption of e-invoicing to improve efficiency and reduce administrative burdens. Under the VAT in the Digital Age (ViDA) package, e-invoicing becomes the default for cross-border B2B sales in the EU from 1 July 2030. EU countries can also make it mandatory for domestic sales, and several already have, including Belgium (from 2026), France (from September 2026) and Germany (phased in from 2025).
Which EU countries have implemented e-invoicing regulations?
Some of the countries that have taken steps toward e-invoicing implementation include Italy, Spain, France, Portugal, and Germany. Each country will have its specific requirements and timelines for compliance so it's essential to consult their official government websites for the latest information on e-invoicing regulations.
Does the UK have a similar digital system?
Yes. HMRC introduced Making Tax Digital for VAT in 2019 for all eligible VAT registered UK businesses. HMRC does not require business to issue electronic VAT invoices, though.
