E-Invoicing in the Precast Concrete Industry: Mandatory Starting in 2027

The introduction of mandatory e-invoicing in the German B2B sector marks a profound shift in existing business processes for the precast concrete industry. For decision-makers at the plants, the primary concern is not the introduction of new IT systems, but rather tangible business impacts: stable cash flows, guaranteed input tax deductions, and robust processes in an already complex project-based business.

Especially in an industry characterized by high upfront costs, tight margins, and a close interdependence of production, logistics, and construction site operations, invoicing becomes a critical success factor. This applies in particular to project-based invoicing forms such as progress and final invoices, where work status, delivery notes, and previous invoices are closely linked. Errors or delays here have a direct impact on liquidity—and it is precisely at this sensitive interface that the e-invoicing requirement comes into play.

Existing processes are reaching their limits

In many precast concrete plants, invoicing processes have evolved over time and are closely intertwined with project-related workflows. Delivery notes, performance reports, and interim invoices are often still created as PDFs and sent via email. This practice is well-established—but will no longer suffice in the future.

From the perspective of tax authorities, a PDF is merely considered a digital image of an invoice, not an electronic invoice in the legal sense. In the future, only structured, machine-readable data formats compliant with the European standard EN 16931 will be permitted. Formats such as XRechnung or ZUGFeRD address this need by preparing invoice data in a way that allows for automated processing.

 In practice, this means that invoice data must be generated, transmitted, and processed by the system. Especially in the construction context, this also means that complex billing logic—such as cumulative service statuses, references to previous partial payments, or tax-specific provisions like Section 13b of the German Value Added Tax Act (UStG)—must be represented in a structured manner within the data record. Manual intermediate steps thus become not only inefficient but increasingly risky.

The legal timeline demands action

The regulatory framework is clearly defined: As of January 1, 2025, companies are already required to be able to receive e-invoices. Starting January 1, 2027, the obligation to send e-invoices will initially apply to companies with an annual turnover of more than 800,000 euros, before becoming mandatory for all B2B companies starting in 2028.

For precast concrete plants, this generally means that the transition should have effectively begun “yesterday.” Not only because of the revenue threshold, but also because ongoing projects, long-term supply contracts, and well-established processes usually cannot be adapted at short notice. 

Liquidity risks due to formal errors

Particularly critical is the close link between invoice format and tax validity. Because in just over seven months, a non-compliant invoice could result in the invoice recipient no longer being able to claim input tax credits. In practice, this will very likely mean in many cases: the invoice will be rejected.

This can have serious consequences, particularly for precast concrete plants with project-based billing models. Progress payments are delayed, payment approvals are blocked, and in the worst case, liquidity bottlenecks arise throughout the entire supply chain. Increased sensitivity on the recipient’s side is to be expected, especially in the first few months following the introduction of the mandatory electronic invoicing requirement.

The formal correctness of the invoice thus becomes a decisive factor for payment receipt—and no longer just a matter of accounting.

Email remains a dead end

A common misconception is that the transition to e-invoicing is already sufficiently implemented by sending structured files via email. While email can serve as a transmission channel in the short term, it does not solve the core challenges.

Media breaks, lack of integration with ERP systems, manual processing steps, and requirements for audit-proof archiving mean that email-based processes are not sustainable in the long term. Added to this are security risks such as manipulation or fraud, which are particularly critical in the sensitive invoicing environment.

For industrial manufacturing companies with high document volumes and standardized processes, it is therefore clear: scalable and secure processes cannot be implemented on this basis.

Infrastructure and Data
Security via Peppol

Against this backdrop, platform-based approaches are gaining increasing importance. Networks such as Peppol enable direct, secure, and standardized data exchange between the participating systems. Invoices are automatically transmitted, processed, and archived—without media breaks. 

For precast concrete plants, the advantage is clear: integration into existing ERP and production systems enables end-to-end processes—from order processing to receipt of payment. At the same time, the risk of errors decreases while processing speed increases.

E-service providers like Billit act as certified access points. Moreover, these providers not only assist with technical integration but also with the substantive implementation of legal requirements. Especially in the construction and precast industries, this combination of technical infrastructure and subject-matter expertise is crucial. Companies benefit from proven solutions and the know-how of specialized providers who reliably map e-invoicing requirements not only formally but also procedurally.

A Strategic Lever

The e-invoicing mandate is part of a broader shift toward digital reporting systems and more automated tax compliance. Companies thus face the decision of whether to view the transition merely as a regulatory obligation—or to use it as an opportunity for process optimization.

The e-invoicing requirement starting in 2027 is therefore not a marginal issue, but a central intervention in existing business processes. Those who continue to rely on PDF and email risk not only efficiency losses but also concrete economic disadvantages.

The crucial question, therefore, is not whether the transition will take place, but how thoroughly it will be implemented. Companies that act early and integrate their processes not only ensure regulatory compliance—but also secure a sustainable competitive advantage in an increasingly digitized construction industry.