Starting January 1, 2027, businesses in Germany with an annual turnover above €800,000 will be required to issue B2B invoices exclusively as structured, machine-readable e-invoices — not PDFs, not paper. Companies below that threshold get one more year, but only until the end of 2027. From January 1, 2028, the exemption disappears entirely: every VAT-registered business issuing domestic B2B invoices will need to comply, regardless of size.

That last part is the one many smaller companies overlook. It’s easy to read “€800,000 threshold” and assume this is a large-enterprise problem. It isn’t. It’s a two-year head start for larger companies — not a permanent exemption for smaller ones. By 2028, a five-person consultancy and a 500-employee manufacturer face the exact same legal requirement.

What actually counts as an “e-invoice”?

This is where a lot of confusion still exists. A PDF sent by email is not a legally compliant e-invoice under the new rules — even though it looks digital. To qualify, an invoice must be a structured, machine-readable format that complies with the European standard EN 16931. In Germany, that means formats like XRechnung (available as CII or UBL syntax) or ZUGFeRD (from version 2.0 onward, in its EN 16931-compliant profiles). A scanned paper invoice or a simple PDF falls into the category of “other invoice” — and from 2028, those will generally no longer be permitted between VAT-registered businesses.

Why this is actually good news for smaller businesses

Yes, this is a compliance deadline. But treated correctly, it’s also an efficiency upgrade that larger companies have already been investing in for years:

• No more manual re-entry. Structured invoice data can be read directly into accounting and ERP systems — no retyping line items from a PDF.
• Fewer errors, faster payment cycles. Automated validation against EN 16931 catches formatting issues before an invoice is sent, rather than after a customer rejects it.
• Audit-proof archiving is built in, rather than bolted on as an afterthought.

The businesses that treat 2027/2028 purely as a deadline to survive will implement the bare minimum. The businesses that treat it as a process upgrade will come out the other side with less manual accounting work — permanently.

How Kapsiki ERP fits in

We built native e-invoicing directly into Kapsiki ERP, so our clients don’t need to bolt on a separate tool or manage a parallel workflow outside their existing system. Specifically, Kapsiki ERP now supports:

• Native generation of XRechnung (CII & UBL) and ZUGFeRD (EN16931 & Extended) invoices, created directly from existing invoice records
• EN 16931 validation before sending, so formatting errors are caught early
• PEPPOL-ready delivery, built for transmission across Europe’s standardized business document network
• GoBD-compliant archiving, with immutable, hash-verified storage and the required 8-year retention
• Automated inbound processing, so incoming XRechnung and ZUGFeRD invoices from suppliers are parsed and matched — no manual data entry required

This isn’t a plug-in retrofitted onto an existing invoicing module. It’s built as an integrated part of the platform, designed so that whether your business falls under the 2027 threshold or the 2028 deadline, the underlying process is already in place — and already saving time.

And you don’t need to adopt the full ERP suite to get there. Kapsiki ERP is built module by module — accounting, CRM, HR, supply chain, and e-invoicing among them — and each can be used on its own. If e-invoicing compliance is the only thing on your list right now, you can implement just that module without committing to a full system migration. That makes it a realistic starting point for smaller businesses that need to be compliant on time, without taking on a project the size of a full ERP rollout.

Getting ready before the deadline arrives

Even businesses with more time on the clock benefit from moving early. Testing e-invoice workflows against real supplier and customer data, training accounting staff on the new process, and having archiving in place before it’s legally required all cost far less when they aren’t done under deadline pressure.

Want to see how Kapsiki ERP’s e-invoicing module works in practice? Explore the solution yourself at demo.erp.kapsiki.net, or get in touch — we’re happy to walk through what the 2027/2028 timeline means specifically for your business.