EU e-invoicing mandates starting 2026 — how is everyone handling this?

Accounting & Taxes
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Topic summary

EU B2B e‑invoicing mandates are expanding (Belgium mandatory from Jan 2026; Poland’s KSeF rolling out now; France and Germany next), raising compliance concerns for Shopify merchants.

Shopify’s native invoices (added Dec 2024) produce PDF documents suited for B2C. New rules require machine‑readable XML e‑invoices (e.g., UBL, XRechnung, FatturaPA) sent via official rails like PEPPOL or national platforms (e.g., KSeF). This is a separate process from simple PDF invoicing.

Current tool landscape appears fragmented. Examples raised: Sufio supports PEPPOL/UBL but not Poland’s KSeF; Quaderno mentions Verifactu, with unclear pricing. Most solutions seem country‑specific rather than covering multiple EU formats and submission channels.

Open questions to peers:

  • How are cross‑border B2B‑compliant e‑invoices generated (manual, app, accountant)?
  • Has anyone sent PEPPOL invoices directly from a Shopify workflow?
  • Are merchants in Belgium/Poland already compliant?
  • What monthly costs are typical for these setups?

No decisions or solutions yet. The thread is seeking practical experiences and costs to prepare before Germany’s deadline; discussion remains open.

Summarized with AI on March 3. AI used: gpt-5.
1

With Belgium going mandatory on B2B e-invoicing (PEPPOL/UBL format) since January 2026, Poland’s KSeF rolling out now, and France + Germany coming next. I’m genuinely confused about how Shopify merchants are supposed to handle this.

From what I can tell, Shopify’s built-in invoice feature (added Dec 2024) generates a basic PDF, which is fine for B2C. But the new mandates require machine-readable XML files (UBL, XRechnung, FatturaPA) submitted through official channels like PEPPOL. That’s a completely different thing.

I’ve looked at Sufio, Quaderno, and a few others, but none of them seem to cover ALL the formats. Sufio does PEPPOL but not KSeF. Quaderno does Verifactu but pricing is unclear. And most of them are clearly built for one country, not the full EU rollout.

So my questions for anyone selling B2B in Europe:

  1. How are you currently generating compliant invoices for cross-border B2B? Manual process? Third-party app? External accountant?

  2. Has anyone actually managed to send a PEPPOL invoice directly from their Shopify workflow?

  3. For those in Belgium/Poland — are you already compliant, or still figuring it out?

  4. What are you paying monthly for your current invoicing setup?

We’re currently selling B2B across 3 EU countries and trying to figure out our compliance setup before the German deadline hits. Would love to hear how others are dealing with this, especially the frustrations, because I feel like I can’t be the only one drowning in this.

2

Hi Zimi,

You’re absolutely right that the EU e-invoicing landscape is getting more complex. The main challenge is that many of the new mandates require structured e-invoices (XML formats) sent through official systems such as PEPPOL or national platforms, which is quite different from the standard PDF invoices most ecommerce platforms generate.

For example:

Belgium (mandatory from January 2026) requires B2B invoices to be sent in PEPPOL BIS / UBL format through the PEPPOL network. We recently published a guide explaining how this works for Shopify merchants:
https://sufio.com/articles/shopify/e-invoicing/belgium-peppol-einvoices/?src=https://ecommerce.shopify.com

Poland is introducing its KSeF centralized invoicing system, where invoices must be submitted directly to the government platform and receive an official ID before they are considered valid. You can read more about that here:
https://sufio.com/articles/shopify/e-invoicing/poland-ksef-einvoices/?src=https://ecommerce.shopify.com

As you’ve noticed, one of the biggest issues right now is fragmentation across EU countries. Different governments are adopting different technical infrastructures (PEPPOL, KSeF, Chorus Pro, etc.), which means many tools currently support only specific formats or countries.

At Sufio, we already support PEPPOL e-invoicing and are actively working on KSeF integration (currently in development). We’re also expanding our e-invoicing support to additional EU countries as new mandates are introduced.

3

You’re definitely not the only one confused by this. Every EU country picked a different technical standard so there’s no single tool covering everything yet.

Most practical approach right now if you’re selling B2B across 3 countries: pick one tool for your highest volume country and handle the others through your accountant until the tooling matures. Trying to automate everything today when standards are still being finalized seems like a recipe for headaches.

Worth watching: the EU is working on a more unified framework under ViDA (VAT in the Digital Age) that should harmonize some of this by 2028 or so. Until then it stays fragmented.

Which 3 countries are you in? That might help narrow down what actually works for your setup.