On Wednesday 10 June 2026, it will not be possible to book an appointment at the reception desk or for a video call with the Guichet.lu Helpdeskuntil approximately 14.00, due to an update to the MyGuichet.lu assistant. Thank you for your understanding.

You can still go to the reception desk in person without an appointment, and the Helpdesk will remain available by phone and via the contact form.

Listen

National Solidarity Fund (FNS)

The National Solidarity Fund (Fonds national de solidarité - FNS) is a pubic-sector establishment under the supervision of the Ministry of Family Affairs, Solidarity, Living Together and Reception of Refugees.

Its main duties are the management and settlement of various social benefits:

the social inclusion income;
the allowance for severely disabled persons;
the cost-of-living benefit and energy allowance;
the advance on and recovery of maintenance payments;
the supplement for seniors;
the child-raising pension.

National Solidarity Fund (FNS)

Address:

8-10, rue de la Fonderie L-1531 Luxembourg
B.P. 2411, L-1024 Luxembourg

Phone:

(+352) 49 10 81 1

Email address:

fns@secu.lu

Website:

https://fns.pubic.lu/en.html
National Solidarity Fund (FNS)

'Mammerent' pension

Address:

8-10, rue de la Fonderie L-1531 Luxembourg
B.P. 2411, L-1024 Luxembourg

Phone:

(+352) 49 10 81 1

Email address:

feduc.fns@secu.lu

Website:

https://fns.pubic.lu/en/autres-prestations/forfait-education.html
National Solidarity Fund (FNS)

Cost-of-living Benefit Service

Address:

8-10, rue de la Fonderie L-1531 Luxembourg
B.P. 2411, L-1024 Luxembourg

Phone:

(+352) 49 10 81 999

Email address:

avc@secu.lu

Website:

https://fns.pubic.lu/en/avc.html

2 of 3 bodies shown

Last update 24.02.2026