Applying for the cost-of-living benefit


Due to the current situation related to COVID-19, the reception desk at the National Solidarity Fund (FNS) is currently closed but can be contacted by telephone.

This measure has no impact either on the processing of your file or on the payment of your benefits and other allowances.

Find out more about the online procedures and application forms for the FNS.

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Upon application and in certain conditions, the National Solidarity Fund (Fonds national de solidarité – FNS) awards a specific benefit to low-income households.

To receive the cost-of-living benefit, household income must not exceed a certain threshold. The amount of the benefit is determined on the basis of the applicant's household (whether the applicant lives alone or with several other people).

Who is concerned


Households with modest incomes (which do not exceed the allocation limits set by Grand Ducal regulation) are eligible for the cost-of-living benefit.

Excluded persons

The following persons are not entitled to the cost-of-living benefit:

  • persons receiving State financial aid for students in higher education (Aide financière de l'Etat pour études supérieures);
  • third-country nationals who have entered Luxembourg as students, pupils, trainees, volunteers or au pairs;
  • persons who are the subject of a preventive detention order or who have been sentenced to a term of imprisonment, except during the period of day parole, regardless of whether:
    • their sentence has been suspended; or
    • they have been released on parole; or
    • they have been put under electronic monitoring.


Anyone who wishes to benefit from the cost-of-living benefit must:

  • be legally resident in Luxembourg;
  • be listed on the main register of the National Registry of Natural Persons (RNPP);
  • actually live at the address where they have their place of usual residence;
  • have been living in Luxembourg continuously for 12 months before the month in which the application is submitted;
  • have a low annual income, either alone, or cumulatively with the persons belonging to their household at the time of submitting the application.

All persons belonging to the household on the date the application is filed are considered as applicants for the benefit for the current year. The applicant in whose name the application is submitted is deemed to be the main applicant.


The National Solidarity Fund (FNS) must receive the complete application between 1 January and 30 September of the current year. The postmark serves as proof of the date.

Applications submitted after 30 September of the current year will be rejected.

How to proceed

Filing an application

Application forms can be downloaded below, under "Forms / Online services".

The application for the cost-of-living benefit includes information about the household and must be signed by all of its adult members.

The application must be completed, signed and sent by post to the FNS.

Persons who have already received the cost-of-living benefit will receive a form from the FNS at the beginning of the year.

Eligibility requirements for the application

In order to be considered complete, an application must be:

  • accompanied by a bank account identification document (RIB) for the personal bank account;
  • filled in completely;
  • signed by all applicants of legal age, or by their legal representative.

The FNS will return incomplete applications to the applicant by post.

The applicant must send the completed application to the FNS within 30 days. The postmark serves as proof of the date. If this deadline is not met, the cost-of-living benefit will be denied.

The FNS may request additional information or documents from the applicant.

Income limits

For the application to be accepted, the household's total annual income must not exceed a certain limit.

Total annual income is estimated over a reference period taken as the 12 months preceding the month in which the application is submitted.

The gross monthly income limit (of the average gross income during the reference period) is set at:

  • EUR 2,203.77 for a single person;
  • EUR 3,305.65 for a 2 person household;
  • EUR 3,966.78 for a 3 person household;
  • EUR 4,627.91 for a 4 person household;
  • EUR 5,289.04 for 5 person household;

Consult the full cost of living benefit table for the year 2021.

To determine the income of the household, the following are taken into account:

  • income from any professional activity;
  • replacement income (parental leave allowance, disability pension, etc.);
  • income from movable and immovable assets (rent, stocks, etc.);
  • pensions and annuities;
  • maintenance/support payments;
  • allowances or benefits received from a public organisation, with the exception of:
    • family benefits;
    • back-to-school allowance;
    • maternity allowance.


Amount of the cost-of-living benefit

The amount of the benefit is determined on the basis of the applicant's household, and corresponds to:

  • EUR 1,452 for a single person;
  • EUR 1,815 for a 2 person household;
  • EUR 2,178 for a 3 person household;
  • EUR 2,541 for 4 person a household;
  • EUR 2,904 for a 5 or more person household.

Consult the full cost of living benefit table for the year 2021.

The benefit is exempt from taxes and social security contributions. The benefit is non-transferable and may not be pledged or seized.

Reduced cost-of-living benefit

Applicants whose income exceeds the allocation threshold may receive a reduced cost-of-living benefit.

The amount of this benefit corresponds to the difference between:

  • the amount of the cost-of-living benefit that would normally be paid to an applicant in a comparable situation;
  • the portion of the annual income which exceeds the total annual income threshold.

Allocation of the benefit

The benefit can only be applied for once a year.

This limitation also applies if there is a change in the composition of the applicant's household or income situation.

Up to half of the benefit amount may be withheld to offset claims of the National Solidarity Fund against the beneficiaries.

In case of agreement, it is paid into the applicant's account.


The decision may be challenged before the Steering Committee of the National Solidarity Fund. The appeal must be filed within 40 days of the notification of the decision.


Forms / Online services

Demande en obtention d'une allocation de vie chère 2021

Les informations qui vous concernent recueillies sur ce formulaire font l’objet d’un traitement par l’administration concernée afin de mener à bien votre demande.

Ces informations sont conservées pour la durée nécessaire par l’administration à la réalisation de la finalité du traitement

Les destinataires de vos données sont les administrations compétentes dans le cadre du traitement de votre demande. Veuillez-vous adresser à l’administration concernée par votre demande pour connaître les destinataires des données figurant sur ce formulaire. Conformément au règlement (UE) 2016/679 relatif à la protection des personnes physiques à l'égard du traitement des données à caractère personnel et à la libre circulation de ces données, vous bénéficiez d’un droit d’accès, de rectification et le cas échéant d’effacement des informations vous concernant. Vous disposez également du droit de retirer votre consentement à tout moment.

En outre et excepté le cas où le traitement de vos données présente un caractère obligatoire, vous pouvez, pour des motifs légitimes, vous y opposer.

Si vous souhaitez exercer ces droits et/ou obtenir communication de vos informations, veuillez-vous adresser à l’administration concernée suivant les coordonnées indiquées dans le formulaire. Vous avez également la possibilité d’introduire une réclamation auprès de la Commission nationale pour la protection des données ayant son siège à 15, boulevard du Jazz L-4370 Belvaux.

En poursuivant votre démarche, vous acceptez que vos données personnelles soient traitées dans le cadre de votre demande.

Antrag zur Erlangung einer Teuerungszulage 2021

Ihre in diesem Formular erfassten personenbezogenen Informationen werden von der zuständigen Verwaltungsbehörde verarbeitet, um Ihren Antrag erfolgreich abzuschließen.

Diese Informationen werden von der Behörde für den zur Verarbeitung erforderlichen Zeitraum gespeichert.

Die Empfänger Ihrer Daten sind die im Rahmen Ihres Antrags zuständigen Verwaltungsbehörden. Um die Empfänger der in diesem Formular erfassten Daten zu erfahren, wenden Sie sich bitte an die für Ihren Antrag zuständige Behörde.

Gemäß der Verordnung (EU) 2016/679 zum Schutz natürlicher Personen bei der Verarbeitung personenbezogener Daten und zum freien Datenverkehr haben Sie das Recht auf Zugang, Berichtigung und gegebenenfalls Löschung Ihrer personenbezogenen Informationen. Sie haben zudem das Recht, Ihre erteilte Einwilligung jederzeit zu widerrufen.

Weiterhin können Sie, außer in Fällen, in denen die Verarbeitung Ihrer Daten verpflichtend ist, Widerspruch einlegen, wenn dieser rechtmäßig begründet ist.

Wenn Sie diese Rechte ausüben und/oder Einsicht in Ihre Informationen nehmen möchten, können Sie sich unter den im Formular angegebenen Kontaktdaten an die zuständige Verwaltungsbehörde wenden. Sie haben außerdem die Möglichkeit, bei der Nationalen Kommission für den Datenschutz Beschwerde einzulegen (Commission nationale pour la protection des données, 15, boulevard du Jazz L-4370 Belvaux).

Wenn Sie Ihren Vorgang fortsetzen, akzeptieren Sie damit, dass Ihre personenbezogenen Daten im Rahmen Ihres Antrags verarbeitet werden.

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