Jauch has used his personal wealth to purchase and restore several historic buildings in and around Potsdam, his current town of residence.

The programme caused some sensation due to the transmission of falsified articles delivered by the journalist Michael Born who was subsequently convicted to a four-year prison sentence in 1996, a few other prominent German TV networks had also been deceived with such material.

In late 2006, Jauch announced that he would only host the first broadcast of the Four Hills Tournament (from Oberstdorf) and celebrate New Year's Eve with his family.

According to his own statement, he has spent considerable amounts of his income, including all the profit from advertising jobs, on charitable causes since the early years of his career.

[10] In 2002, he made significant financial contributions to the reconstruction of the Fortunaportal (Gate of the Fortuna) at the Potsdam Stadtschloss city palace.

Jauch has also given financial support to other projects in Potsdam, e.g. the Belvedere on the Pfingstberg, (where he got married in 2006), the Potsdam city canal, the Kloebersaal,[11] a hall in the north wing of the Marmorpalais (Marble Palace), which is opposite his villa at Heiligen See lake, as well as the restoration of the Neptungrotte (Neptune Grotto) in the palace gardens of Schloss Sanssouci.

[12] Furthermore, he supported the construction of the Marienschule Potsdam, a co-educational Roman-Catholic school for primary and secondary education, which belongs to the archdiocese of Berlin.

Jauch's ancestress on his grandmother's side, Anna Weißebach, founded the Caritas Konferenzen, the German branch of the International Association of Charities.

In line with his family's tradition of charitable foundations, Jauch endowed the founding of a branch of Die Arche in Drewitz (Potsdam) in 2009, which provides free meals for children in need.

[17] In 2010, he successfully applied for membership in the German Prädikat Wine Estates VDP (German: "Verband Deutscher Prädikatsweingüter"), in order to acquire a relative's vineyard (Othegraven in Kanzem) which was approved by VDP that certifies Germany's wines that meet the organizations requirements.

The Landgericht Berlin granted him an interim injunction against the newspaper Bild and other publications of the Springer publishing house.

[22] The Kammergericht Berlin, however, decided against a prohibition of general media coverage in June 2006 due to his celebrity status.