E-Invoicing Basics
E-Invoice vs. Paper Invoice
The paper invoice is on its way out in Germany — at least for B2B. An objective comparison of costs, legal certainty and process efficiency.
| Criterion | Structured E-Invoice | Paper Invoice |
|---|---|---|
| Average cost per invoice (creation + dispatch) | approx. €3–8 (Bitkom/EU estimate) | approx. €10–25 (printing, postage, enveloping, archiving) |
| Throughput time to posting | Seconds to minutes (fully automated) | 3–10 business days (postal transit + manual entry) |
| B2B legal status from 2025 (§ 14 UStG) | Fully compliant, preferred format | Only permitted with recipient consent (transition period) |
| Error rate during entry | Very low (structured data, validatable) | High (typos, illegible writing, missing fields) |
| Archiving requirement (10 years) | Digital archiving easy and cost-effective | Physical storage costly (space, fire protection) |
| Environmental impact | Significantly lower (no paper, no transport) | Paper consumption, printer ink, CO₂ from transport |
| ERP/accounting integration | Seamless; direct data import without media breaks | Media break unavoidable; OCR or manual input required |
| Tamper resistance | High through structured data and validation | Low without physical security features |
| Accessibility for small businesses | Requires e-invoicing software; free tools available | No software needed, immediately usable |
Verdict
The e-invoice is superior to the paper invoice in almost every dimension: faster, cheaper, more secure and more environmentally friendly. The only advantage of the paper invoice is the low barrier to entry — an advantage that disappears immediately with any available free e-invoicing solution. Given the German B2B mandate from 2025, the switch is unavoidable anyway.
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