More questions?
Remember to check the FAQs.
Are you unsure whether you are subject to this obligation? Check Who will be obliged to use e-invoicing? - e-invoice (available in Dutch, French and German) or use the tool.
Certain intersectoral and sectoral business organisations will also be organising information campaigns in the course of 2025 to provide you with further information on this. An overview of the registered events can be found under ‘Calendar'.
For technical support, please contact your software supplier. If you rely on an accountant for your bookkeeping, it is best to make arrangements with your accountant.
For questions about Mercurius (B2G), use the Mercury contact form (see also Mercury | BOSA).
For general questions about B2B billing, please use the contact form below.