The SnelUBL knowledge base provides practical answers about UBL, PDF conversion, Peppol and e-invoicing in the Netherlands and Belgium. The articles distinguish between a readable source file, structured UBL XML, accounting software and the infrastructure used to exchange an e-invoice.
Start with your question
| Question | Article |
|---|---|
| What is a UBL file? | What is UBL? |
| Which version or profile do I need? | UBL 2.1 vs UBL 2.3 vs Peppol BIS 3.0 |
| How do I convert a PDF? | Convert a PDF invoice to UBL |
| Can I use a photo or scan? | Invoice photo or scan to UBL |
| What is Peppol? | Peppol explained for businesses |
| What applies in Belgium? | E-invoicing in Belgium since 2026 |
| What is the Dutch plan for 2030? | Mandatory e-invoicing from 2030 |
| Am I looking for a Go2UBL alternative? | Go2UBL alternative |
Practical tools
- Free UBL validator: a local basic check in your browser.
- Check a UBL file: a checklist for fields and amounts.
- Invoice requirements in the Netherlands: data relevant to invoice processing.
- Accounting packages: SnelStart, Exact Online, AFAS, Moneybird, e-Boekhouden.nl, Twinfield and Yuki.
- Documentation: guides for Quick Mode, workflows and integrations.
The Netherlands and Belgium
E-invoicing to Dutch government organizations is already required. The Dutch government plans mandatory B2B e-invoicing from 1 July 2030; the law has not yet been enacted. In Belgium, B2B e-invoicing through Peppol has been mandatory since 1 January 2026.
SnelUBL helps when a supplier still sends a PDF, DOCX, scan or photo. The source is converted to UBL 2.1 or UBL 2.3, and you can review and correct the data before export.
Frequently asked questions
Where should I start if I only have a PDF invoice?
Read Convert a PDF invoice to UBL and test the process with one of the first 3 free conversions.
Can I check here whether my UBL file is fully Peppol compliant?
No. The free validator provides a basic check and does not claim full EN 16931 or Peppol BIS Billing 3.0 Schematron validation.
Which UBL versions does SnelUBL support?
SnelUBL creates UBL 2.1 and UBL 2.3 and validates the output before export.
Can I automate invoice processing?
Yes. Workflows support a dedicated inbox, automatic attachment detection, status emails, cloud folders and API access.
Where can I find information for accountants?
See SnelUBL for accountants for multiple clients, organization hierarchy, batches and central billing.
Last updated: 2 October 2026.