Data Protection Statement


Our data collection and processing procedures guarantee compliance with the Regulation (EU) 2016/679 on the protection of individuals with regard to the processing of personal data and the free movement of such data (General Data Protection Regulation – GDRP). In accordance with the GDPR, all data collected for this study will be kept strictly confidential and will only be analysed within the framework of the Household Finance and Consumption Survey. Results will only be presented in aggregated and anonymised form.

What is the data category?

Before the survey

  • Contact data (name and address), known only to the Centre des technologies de l’information de l’Etat (CTIE).

During the survey

The questionnaire consists of 4 parts, which include questions on:

  • your and your household’s socio-demographic characteristics and where you come from
  • household’s financial data (household income, consumption, expenses, assets and pensions)
  • employment of the household members
  • the effect of COVID 19 on the household’s financial situation

Who has the control over my data?

The Banque centrale du Luxembourg (BCL, 2, bd Royal, L-2983 Luxembourg) and the Luxembourg Institute of Socio-Economic Research (LISER, 11 Porte des sciences, L-4366 Belval) are jointly responsible for the processing of personal data carried out within the framework of this survey (except for names and addresses, unknown to the BCL and LISER).


Data processing is based on the following provisions:

  • The law of June 19, 2013 on the identification of natural persons, the national register of natural persons, the identity card, municipal registers of natural persons;
  • Article 6(1) (a) and (e) in conjunction with Recital (40) of the GDRP;
  • Article 5(1) of the Statute of the European System of Central Banks (ESCB) and the European Central Bank (ECB).

How is the data collection and processing organized?

  • In partnership with the BCL, the Luxembourg Institute of Socio-Economic Research (LISER) - has selected a random sample pseudo-anonymised individuals (IDs) on the basis of social security numbers through the microdata platform of the Inspection Générale de la Sécurité Sociale (IGSS).
  • The IGSS transfers the sampled IDs to the Centre des technologies de l’information de l’Etat - that sends you an invitation to participate in the survey.
  • LISER has developed a questionnaire and a Web survey application to collect respondents’ answers that are stored in a secure environment at LISER premises.
  • After the collection, the data are analysed without the initial credentials (that will be destroyed).

Recipient of data and retention period

Your contact details (names and addresses) are not known to either the BCL or LISER. They are kept by the CTIE until the end of the collection period will be destroyed and no later than 6 months after the start of the survey.

The collected data will only be used for statistical and research purposes.

Your rights

You can exercise the following rights at LISER by writing to and quoting the name of the survey "Household Finance and Consumption Survey and mentioning the user name that is written on your invitation letter ":

  • Withdraw your consent;
  • Request access to personal data;
  • Correct personal data;
  • Erase personal data;
  • Limit the processing of personal data (when the data is inaccurate, the processing is unlawful or the controller no longer needs the data);
  • Oppose the processing of personal data;

Your consent to participate in the survey - Your data is collected on the basis of your consent, in accordance with Article 6 1.a) of the GDPR.

Should you consider that your rights have been infringed, you can lodge a complaint with the CNPD: