Glossary
Secure till softwarelogiciel de caisse sécurisé, NF525
French VAT law (article 286, I, 3° bis of the General Tax Code) requires every business that records payments from consumers to use till software meeting conditions of inalterability, security, retention and archiving of data.
The rule has applied since 1 January 2018, including to invoicing software with a till function, such as a practice’s PMS.
Proof is either a certificate from an accredited body (such as the NF525 mark) or, again since 21 February 2026, the publisher’s individual attestation (2026 Finance Act). NF525 is therefore a certification mark, not the legal obligation itself. Software without proof exposes the business to a €7,500 fine.
Sources
See also
- PMS A veterinary PMS (practice management system) is the practice software that manages appointments, patient and client records, prescribing, dispensing, stock, invoicing and payments.
- E-invoicing French mandatory e-invoicing requires VAT-registered businesses to issue and receive business-to-business invoices in a structured format through an approved platform; e-reporting passes the data of other transactions, notably with consumers, to the tax authority.