Estonian Prime Minister Kaja Kallas submitted her resignation to President Alar Karis on Monday morning, APA reports citing ERR.
Kallas is stepping down after being nominated as the European Union's High Representative for Foreign Affairs and Security Policy.
She technically remains head of the government until the new coalition is sworn in.
Kallas has held the role of prime minister since 2021 and led three consecutive governments. She will also resign as Reform Party chairman later this summer.
A new government is likely to take office at the start of August.