 On 28 August 2015, Kucka was signed by AC Milan for €3 million transfer fee.However, Milan also paid an unknown parties an additional €1 million.He made his debut on 29 August 2015 in a 2–1 home win against Empoli, and scored his first Milan goal on 9 January 2016 to equalize against AS Rome in a 1–1 draw.