The verdict in three sentences
B2B e-invoicing is becoming mandatory on a phased timeline: reception for all companies, then issuance by company size, with SMEs and micro-businesses concerned around 2026-2027. Connecting to a certified dematerialisation platform (PDP) and integrating your ERP costs EUR 3,000-12,000 depending on your tooling. Beyond compliance, the project brings concrete gains: DSO cut by ~5 days, automatic legal archiving and the end of manual data entry.
Compliance budget in 2026
Cost depends on your current invoicing system and invoice volume. 2026 order of magnitude for a B2B SME.
| Scope | Cost (EUR) | Timeline | Content |
|---|---|---|---|
| Simple PDP connection | 3,000 - 5,000 | 6 wks | Issue/receive Factur-X |
| ERP/invoicing integration | 5,500 - 8,000 | 7-9 wks | Mapping, lifecycle statuses |
| ERP + procurement + workflow | 8,000 - 12,000 | 9-12 wks | PO/invoice matching |
| Multi-entity + high volume | 12,000 - 18,000 | 10-14 wks | Multi-company, e-reporting |
Recurring: the PDP subscription, often EUR 0.10 to 0.50/invoice or a monthly plan depending on volume.
Timeline, penalties and platform choice
Accepted formats are Factur-X, UBL and CII; transmission goes through a registered PDP. 2026 decision markers.
| Item | 2026 marker | Key point |
|---|---|---|
| E-invoice reception | All companies | Prepare first |
| Issuance (SME/micro) | Around 2026-2027 | Anticipate connection |
| Formats | Factur-X / UBL / CII | Factur-X = PDF + XML |
| Non-issuance penalty | order of EUR 15/invoice | Annually capped |
| E-reporting penalty | order of EUR 250/transmission | Annually capped |
| PDP cost | EUR 0.10-0.50/invoice | Or monthly plan |
Platform choice hinges on ERP compatibility, e-reporting support (collections, B2C, international) and cost per volume. A poorly integrated PDP just relocates the manual entry the project is meant to remove.
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Mini case study
Helen, CFO of a B2B distribution SME, issues 900 invoices/month and runs a 48-day DSO. She connects to a PDP with ERP integration (project EUR 7,500, subscription EUR 0.25/invoice i.e. EUR 225/month).
Gains: removal of ~20 h/month of entry and sending (~EUR 1,100/month of salary cost), automatic legal archiving, and above all tracked invoice lifecycle that cuts DSO to 43 days. On ~EUR 1.3M of receivables, those 5 days free ~EUR 18,000 of working capital. Net of the subscription, the project pays off in ~6-7 months, excluding the value of compliance itself.
FAQ
How much does e-invoicing compliance cost? From EUR 3,000 for a simple PDP connection to EUR 12,000 with ERP integration and procurement workflow. Timeline of 6 to 12 weeks, plus the recurring PDP subscription.
What is the 2026 mandate timeline? Reception of e-invoices concerns all companies, then issuance applies by size, with SMEs and micro-businesses targeted around 2026-2027. Better to anticipate connection than face the deadline.
What penalties apply for non-compliance? Indicatively, on the order of EUR 15 per invoice not issued in the required format and EUR 250 per missing e-reporting transmission, within annual caps. The cost of non-compliance quickly exceeds the connection cost.
What is a PDP and do you need one? A registered partner dematerialisation platform that issues, receives and transmits your invoices in Factur-X, UBL or CII formats. Its cost is around EUR 0.10 to 0.50/invoice or a monthly plan.
Does e-invoicing bring gains beyond compliance? Yes: invoice lifecycle tracking (DSO cut by about 5 days), automatic legal archiving and the end of manual entry, often more than EUR 1,000/month of gains for an SME at 900 invoices/month.
Let's scope your project. Give us your ERP, invoice volume and compliance deadline, and we'll price the PDP connection and 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.
