After her legal training, Eder-Gitschthaler worked for the Asset Management Association, followed by an advertising agency.
[1] Eder-Gitschthaler became active in politics as a member of the municipal council of Wals-Siezenheim in 1999 and served on that body until 2014.
In 2008, the Austrian People's Party suffered one of its worst results ever in the election and she was denied re-election to the National Council.
[3] The People's Party named her as its parliamentary group leader in 2019, making her the first woman to hold the post.
[6] In addition to her role in parliament, Eder-Gitschthaler has been serving as a member of the Austrian delegation to the Parliamentary Assembly of the Council of Europe since 2020.