NF525 compliance: what does it actually change for me?

Nothing changes in how you work. NF525 compliance runs quietly in the background in Sweb: every sale creates a numbered, locked fiscal receipt, and your evening closing seals the day. You check out clients as usual, the rest is automatic.

The principle in one sentence

NF525 is the French legal requirement for any cash register software: it must guarantee that sales data cannot be edited or deleted after the fact. Sweb has been built around this rule from day one, so it adds no extra steps for you.

What this means at the register

• Every receipt is numbered and immutable. Once a sale is collected, its receipt is locked: amount, date, payment methods. No one, not even you, can edit it afterward.
• No deletions, only credit notes. A mistake or a cancellation never makes a receipt disappear. It creates a credit note that cancels it out cleanly, keeping a full trail.
• A security chain links receipts together. Each new receipt carries a cryptographic fingerprint of the previous one. If a single receipt were altered, the chain would reveal it. There is nothing for you to check, it happens automatically.
• Your evening closing seals the day. The Z report you generate at the end of the day permanently locks the sales for that period and feeds cumulative totals going back to the start of your activity on Sweb.

Why this is good news for you

This rigor is not one more thing to manage, it protects you. In case of a tax audit, you have nothing to prepare or justify after the fact: the complete, tamper-proof, timestamped history is already there, in Sweb. You can focus on your sessions, compliance follows behind.

What you still need to do

Your only responsibility is to collect payments through Sweb (not outside of it) and confirm your cash register closing every day you worked. The rest (numbering, hashing, locking, archiving) is handled by the app.

Edge cases

You made an amount mistake on a receipt. You cannot edit it: issue a credit note from the receipt in question, then collect the correct amount again if needed.

You want to check the integrity of your data. The fiscal log (in Finance) lets you verify the security chain of your receipts and closings at any time.

You need an export for your accountant. The NF525-compliant accounting export in FEC format is generated from Finance and covers the period of your choice.