Contact

Get in touch

A question about the tool, a bug to report, a suggestion? We read every message and respond as quickly as possible.

Important before writing

Fidencia is a simulation tool, not a tax consultancy. We cannot respond to requests for personalised tax advice, tax optimisation or interpretation of your specific situation. For those, please consult a qualified accountant or tax lawyer.

By email

For questions about the tool, bugs or improvement suggestions.

contact@fidencia.fr

Report a calculation error

If you believe you have found a calculation error, please specify: the module, the parameters you entered, and the result you obtained. We will investigate and correct promptly.

calcul@fidencia.fr
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Access & billing

Issues with your account access or payment.

support@fidencia.fr

Before you leave

Fidencia stores no data on its servers — your simulations remain entirely private on your device.

Download your session file to pick up where you left off next time.