Legal notice
Publisher. QCS Luxembourg S.à r.l., a private limited liability company (société à responsabilité limitée) under Luxembourg law. Registered office: 3, Boulevard Royal, L-2449 Luxembourg. Registered with the Luxembourg Trade and Companies Register (RCS) under number B207284.
Contact. Phone +352 26 550 733, e-mail j.blanchard@qcs.lu.
Hosting. Hetzner Online GmbH, Industriestraße 25, 91710 Gunzenhausen, Germany. The server is located in Falkenstein, Germany.
Content. The information on this website is general and is not tax, legal, accounting or social security advice for your particular situation. Rates, thresholds and deadlines change; the official sources (Administration des contributions directes, Administration de l’enregistrement, des domaines et de la TVA, CCSS, Legilux) prevail. The salary calculator gives an estimate only. For advice on your case, contact us.
Images. Photo of the Adolphe Bridge: Denise Hastert, CC BY-SA 4.0, Wikimedia Commons. Illustrations on the service pages were created for QCS Luxembourg.
Privacy policy
Who is responsible
The controller of the personal data described here is QCS Luxembourg S.à r.l., 3, Boulevard Royal, L-2449 Luxembourg, RCS B207284. For any question about your data, write to j.blanchard@qcs.lu.
What we receive and why
- “Book a consultation” form. Name, company (optional), country of residence, reason for contact, e-mail, phone, the page and language you used. We use them to answer your request and, if you wish, to prepare a proposal. Legal basis: steps taken at your request before a contract (Art. 6(1)(b) GDPR).
- “Free month” form for our online payroll and AML/KYC services. Name, company, job title, number of employees (payroll), e-mail and phone. We use them to open your trial access and to contact you about it. Legal basis: Art. 6(1)(b) GDPR.
- Monthly briefing. If you tick the box, we use your e-mail address to send you the monthly briefing. Legal basis: your consent (Art. 6(1)(a) GDPR), which you can withdraw at any time by unsubscribing or by writing to us.
- E-mails and calls. When you write or call, we use your details to answer you.
To protect the forms against abuse, we also record the IP address from which a form was sent (legitimate interest, Art. 6(1)(f) GDPR). We do not use advertising or tracking tools, the visit count is our own and uses no cookies, and we do not sell or rent your data.
To count visits we record, without cookies, the page viewed, the website you came from and an anonymous identifier calculated from your IP address and browser. The identifier changes every day and cannot be traced back to you; the IP address itself is not stored (legitimate interest, Art. 6(1)(f) GDPR).
Google map
The contacts block at the bottom of each page shows a map from Google Maps (Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland). When the map loads, your browser connects to Google’s servers and sends them your IP address and technical browser data; Google may set its own cookies and process the data under its own privacy policy (policies.google.com/privacy), possibly also in the United States. We use the map so that you can find our office (legitimate interest, Art. 6(1)(f) GDPR).
Who processes the data for us
- Hetzner Online GmbH (Germany): hosting of the website and of the copy of each form request.
- Scaleway SAS (France): delivery of the e-mail that carries your form request to us.
- Microsoft Ireland Operations Ltd (Microsoft 365): our e-mail.
These providers act on our instructions under data processing agreements. Your data is processed in the European Union.
How long we keep it
Requests that do not lead to an engagement are deleted three years after our last exchange. If you become a client, we keep your data for the duration of the engagement and then for the periods required by law (in particular ten years for accounting records and five years for anti-money laundering records). Your e-mail address stays on the briefing list until you unsubscribe.
Your rights
You may ask for access to your data, its correction or deletion, the restriction of its processing or a copy in a portable format, and you may object to processing based on our legitimate interest. You may withdraw a consent at any time; this does not affect processing carried out before. Write to j.blanchard@qcs.lu. You also have the right to lodge a complaint with the Commission nationale pour la protection des données (CNPD), 15, Boulevard du Jazz, L-4370 Belvaux, cnpd.public.lu.
We do not take decisions about you based solely on automated processing.
Our online platforms
Our payroll platform (payroll.qcslux.com) and AML/KYC platform (kyc.qcslux.com) are separate services. When you use them, the data processing agreement and the privacy terms shown in those platforms apply.
Cookies
This website does not set cookies itself and does not use third-party analytics or advertising trackers; it only counts visits itself, as described above. It only stores the language you choose (key “qcs-lang”) in your browser’s local storage, so that the next page opens in the same language. This is needed for the site to work as you asked and is never sent to us. The fonts are served from our own server. The only content loaded from a third party is the Google map in the contacts block at the bottom of each page (see the privacy policy above). You can clear the stored language at any time in your browser settings.
The payroll and AML/KYC platforms use a strictly necessary session cookie when you sign in to them.
Last updated: 10 November 2026