The 25-year-old midfielder will join the second-tier German club when his loan with DSC Arminia Bielefeld expires on 30 June.
+++ NEW MAN ON BOARD +++
Konstantin #Kerschbaumer joins the #Schanzer on a three-year-contract until 2021 and moves from @BrentfordFC to #Ingolstadt. Last season, he was loan to @arminia #Bielefeld ⚽️🙌 Welcome to the Schanz! 🤗⚫️🔴 pic.twitter.com/iWQ0PQ9scA
— FC Ingolstadt 04_EN (@Schanzer_EN) June 1, 2018
He impressed on loan at Ingolstadt’s 2.Bundesliga rivals DSC in 2017-18, scoring eight goals in 31 games.
Kerschbaumer joined the Bees in 2015 and scored once in 52 appearances.