The verdict in three sentences
Integrating e-invoicing into a B2B store in Berlin costs between 8,000 and 24,000 EUR in 2026, depending on invoice volume and the existing accounting system. The core of the project is the structured ZUGFeRD/XRechnung format and connecting to the invoicing exchange with reporting. Beyond compliance, automation removes re-keying and saves 15 hours/month of invoicing.
The 2026 framework and what it requires
German B2B e-invoicing reform mandates issuing and receiving structured invoices. In practice, a B2B online retailer must send and receive invoices in a structured format and, in France's parallel model, transmit transaction data (e-reporting) to the tax authority. This means connecting the store, the ERP/accounting, and the exchange.
| Scope | 2026 price (EUR) | Timeline | Included |
|---|---|---|---|
| Simple ZUGFeRD issuance | 8,000 - 11,000 | 4 weeks | Structured format generation, sending |
| Issue + receive + reporting | 12,000 - 17,000 | 5-6 weeks | Full cycle, statuses, reporting |
| Complex ERP/accounting integration | 17,000 - 24,000 | 7-8 weeks | ERP mapping, multi-VAT, credit notes |
| History migration / archiving | + 2,500 - 5,000 | + 1-2 weeks | Audit-proof 10-year archiving |
| Annual maintenance | 2,500 - 5,500 / yr | ongoing | Format updates, platform monitoring |
An e-commerce/invoicing integrator's day rate in Berlin sits between 550 and 850 EUR in 2026. The most underestimated item is mapping data between the store, the ERP, and the exchange.
Formats, platforms, and recurring costs
The platform choice drives the per-invoice cost and integration ease. Accepted formats are ZUGFeRD (hybrid PDF + XML), XRechnung, UBL, and CII.
| Item | Option A (economy) | Option B (premium) |
|---|---|---|
| Cost per issued invoice | 0.10 - 0.25 EUR | 0.05 - 0.15 EUR |
| Monthly subscription | 30 - 80 EUR | 150 - 400 EUR |
| Supported formats | ZUGFeRD, UBL | ZUGFeRD, XRechnung, CII |
| Reporting included | per plan | yes |
| Audit-proof archiving | option | included 10 years |
In France, B2B e-invoicing (Factur-X format) runs 6,000 to 18,000 EUR for a comparable scope, with a mandatory reporting layer and a partner-platform model.
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Mini case study
Julien, head of a B2B electrical-equipment online store in Berlin, issues 900 invoices/month with time-consuming manual re-keying. He invests 17,000 EUR in an issue + receive + reporting integration connected to his ERP. Automation removes 15 hours/month of data entry (about 450 EUR of cost) and makes VAT reliable. Above all, he avoids the risk of penalties (up to several thousand euros for non-compliance) and reduces invoicing disputes. Recurring platform cost: about 150 EUR/month for 900 invoices. The project pays back in about 8 months on productivity alone, excluding avoided risk.
FAQ
What is the ZUGFeRD format? It is a hybrid invoice: a human-readable PDF containing a structured, machine-readable XML file. It is central to the German and French 2026 schemes.
Must I go through a platform? Yes for B2B exchange and reporting: invoices transit an approved exchange, plus a public portal in some models.
Is my current ERP compatible? Many ERPs offer connectors, but data mapping (product references, VAT rates, credit notes) remains the main work item to price.
What is the per-invoice cost? Depending on the platform, budget 0.05 to 0.25 EUR per issued invoice, plus a monthly subscription of 30 to 400 EUR by volume and options.
How long to become compliant? From 4 weeks for simple ZUGFeRD issuance to 8 weeks for a full cycle integrated with an ERP and reporting.
Let's scope your project. Share your invoice volume, ERP, and target platform, and we'll price a compliant, automated integration. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
