E-invoicing means sending invoice data in a **structured, machine-readable format**—not PDFs or scans. Under Directive 2014/55/EU, this enables automation, validation, and compliant archiving. Across the EU, this requirement is now combined with **mandatory e-reporting**, where invoice details must also be transmitted to the tax authority.

Who does E-Invoicing legislation apply to?

E-Invoicing applies to all businesses, as a compliant invoice must be issued in the required electronic structure and—where applicable—reported to the respective tax authorities.

ViDA (VAT in the Digital Age) is an EU initiative that extends mandatory e-invoicing and digital VAT reporting to transactions. The core changes are expected to apply by **2030**, with full transition required by **2035** for countries that previously had national e-invoicing laws. Several EU member states have already begun aligning their own regulations with ViDA.

Peppol is a Pan-European and growing international network and specification for the secure exchange of electronic business documents, including e-invoices. Originally developed for B2G, Peppol is increasingly used for B2B e-invoicing and is part of many national e-invoicing frameworks. fiskaly INVOICE has a direct integration with Peppol.

When and where in Europe will E-Invoicing become mandatory?

E-Invoicing is being introduced step by step across Europe, with different timelines and requirements per country. The general direction is clear: mandatory B2B e-invoicing will expand, and systems should be prepared for ongoing regulatory change. [Read more on our blog](https://www.fiskaly.com/blog/e-invoicing-mandates-in-europe-2026) about country specifics.

How will B2B E-Invoicing affect my business?

Your systems must support structured invoice formats, secure transmission, and compliant storage. ERP, POS, or billing software typically needs to: * Generate standardized invoice data in line with EN 16931 and any applicable country-specific requirements * Issue invoices in a structured electronic format * Apply digital signatures or seals * Report invoice data in real time to the respective tax authorities * Track invoice statuses * Maintain complete audit trails for all transactions * Integrate with public or private exchange platforms

What formats are accepted for B2B E-Invoicing?

Accepted formats vary by country but are usually based on EN 16931. Common examples include UBL and CII. Unstructured formats such as PDFs are generally not sufficient for compliance.

Do POS systems need to support E-Invoicing and how can it be ensured?

It is likely that B2B transactions are processed through a POS system, which means e-invoicing compliance becomes an essential part of the workflow. As VAT requirements expand across Europe, POS systems increasingly sit within the invoicing and reporting chain — even when the actual invoice is generated by connected software. POS providers must therefore ensure that transaction data can support compliant e-invoicing and VAT reporting, without having to build and maintain country-specific logic themselves. With extensive experience in B2C fiscalization and transaction reporting, **fiskaly acts as a VAT compliance partner**, enabling POS providers to stay aligned with evolving regulatory demands across multiple countries.

How does E-Invoicing relate to fiscalization?

Fiscalization (B2C) and e-invoicing (B2B) are increasingly connected. Both rely on structured transaction data, secure transmission, and regulatory reporting – making a unified VAT compliance approach essential.

Why use fiskaly for E-Invoicing?

fiskaly covers VAT compliance end-to-end: * B2C fiscalization * B2B e-invoicing and live-reporting * One integration for evolving European requirements This reduces complexity, speeds up market entry, and helps POS providers stay compliant as regulations change. Preparing early with a scalable, compliance-focused integration helps avoid future rework and enables faster rollout when e-invoicing becomes mandatory.

Illustration of e-invoice with features of fiskaly service

E-Invoicing in Europe – one integration for full VAT Compliance

Make your business ready for seamless B2B e-invoicing compliance with fiskaly INVOICE. Quick setup, secure integration, and automatic updates to keep your solution aligned with current and future regulations. One integration, simple compliance.

logo_5asec-_para_fondo_blanco-removebg-preview

logotipo-alquiler-de-tpv_horizontal_cmyk

fiskaly INVOICE: E-invoicing API benefits

One API for fast, simple integration across Europe

Implement e-invoicing with one documented API and direct tech support.

Different invoice formats? We’ve got you.

We support all EU standards, providing seamless compatibility.

One API for fiscalization and e-invoicing

Reduce effort and costs: fiscalization and e-invoicing in one API. Enjoy complete VAT compliance.

Create value beyond compliance

Benefit from automated, faster invoice exchange and reduced manual errors.

Certified for security and quality

ISO 27001 and ISO 9001 certifications for maximum trust.

Invoice validation

Automated checks to ensure invoices match compliance, structure and format requirements before transmission

Interested? Request a first meeting

We're here to help with any questions and find the perfect solution.
Over 1,600 customers trust our fiscalization solutions. We've got you covered!

Comply with B2B E-Invoicing in Europe

Europe’s E-invoicing landscape is fragmented, with different rules and rollout timelines in every country. Are your POS or ERP systems keeping up? Navigate requirements confidently, stay compliant, stay flexible — and make sure you're ready before it’s too late.

Two people, possibly software vendors, sit in front of the computer screen and see how easily fiskaly adapts systems.

over0 billiondigital signatures

active in0 MillionPOS

over0%satisfaction rate

FAQs E-Invoicing in Europe

10/8/20255 min read

Europe's E-invoicing puzzle: What to know as new mandates go live

E-invoicing is no longer optional across Europe. With new mandates, formats, and country-specific rules taking effect, businesses must act fast to stay compliant. This article outlines ViDA’s goals, EN 16931 standards, and the critical timelines shaping the EU’s digital invoicing future.

Read post

10/3/20255 min read

5 surprising facts about the future of E-invoicing

E-invoicing is transforming compliance and business operations across Europe. From regulatory deadlines to new reporting models, the shift goes far beyond technical upgrades. In this article, we share 5 key insights that will help you prepare for what’s coming next and turn compliance challenges into strategic opportunities.

Read post

10/31/20255 min read

Adjustment of the UStAE: How to check and validate E-invoices correctly

Since January 1, 2025, B2B e-invoicing is mandatory in Germany. We show you how to check incoming invoices securely: technical validation, content review, and legally compliant archiving. Plus: how to identify and handle typical errors (format, business rules, content).

Read post

E-Invoicing in Europe – one integration for full VAT Compliance

fiskaly INVOICE: E-invoicing API benefits

One API for fast, simple integration across Europe

Different invoice formats? We’ve got you.