Security and compliance
E-invoicing
What is the invoicing mandate?
What is a billing mandate and why do I need to sign one?
What does the "Signed PDF" e-invoicing mode mean?
What dematerialization method does an “unsigned PDF” correspond to?
What are the dematerialization methods available in the SY portal?
My client offers to digitise my invoices in PDF or signed PDF. How and when should I choose?
Archiving
VAT rules
What are the regulations for tax digitisation?
Should I keep paper invoices?
If I send an invoice through SY, do I also have to send a paper invoice by post?
Are invoices sent on SY legally recognized?
Are my invoices sent via SY legally recognised by the tax authorities?
How can the tax authorities access my invoices if there is an audit?
Frequently asked questions
- How do I access my customer orders?
- How can the tax authorities access my invoices if there is an audit?
- What is SY?
- Guest Supplier Tutorials
- What is the Cegedim Group?
- Can I issue invoices if I am a Head Contractor ?
- What is Cegedim e-business?
- Can I use a file generated with my office/accounting tool?
- How to register on SY? (guest)