[1] Reding spent his childhood in Bech, a village near Echternach, and has lived in Fischbach, Mersch, and Folschette (near Rambrouch), with his current residence being in Luxembourg City.

Reding went to school in Echternach with, among others, the former Justice and Culture Minister Octavie Modert and the former Secretary-General of the Democratic Party Georges Gudenburg.

Having obtained his master's degree, Reding started work on 1 August 1989 as a solicitor at the Luxembourg bank BGL BNP Paribas.

Reding became politically active in the ADR following this, whose views he shared and for whom he ran for the since 2005 unoccupied seat in the Council of State of Luxembourg.

He narrowly missed out on a seat in the national parliament by a couple of hundred votes, coming second on the ADR centre list behind Jacques-Yves Henckes.

In the snap elections of October 2013, Reding reclaimed the centre seat for the ADR after Jacques-Yves Henckes left the party.

He became a member of the Parliamentary Commissions for Justice, Agriculture and Viticulture, Consumer Protection, Secondary Education, Media and Communication, and Research.