The new prime minister has also been elected to lead his party, the Reform Party, at internal elections on Sunday.
Speaking at the party's general meeting, Rõivas, 34, said the five most important pillars to take Estonia forward are personal freedom, security, free market, education, and responsibility towards the less fortunate.
He said defense spending must remain at least 2 percent of GDP, while energy and transport integration with Europe must continue.
"The state must refrain from taxing success,“ Rõivas said, before nodding to IRL's new coalition partners, the Social Democrats, saying the increase in wealth must increase social security in society.
"Estonia's wealth must increase in a way that leaves no one behind,“ Rõivas said.