Monti may continue to function as the interim prime minister until the parliamentary elections, which have been scheduled for Feb. 24-25, according to BBC News.
Monti was tapped to head a technocratic government last year, and his previously announced resignation became effective Friday once the parliament approved his budget.
He announced his intention to resign Dec. 8 after former Prime Minister Silvio Berlusconi's center-right political party withdrew its support.
Monti may or may not pursue the premiership -- an announcement is anticipated Sunday -- but Berlusconi definitely will be running for the post.
However, public-opinion polls indicate Pier Luigi Bersani's center-left political alliance would likely beat either of them were the elections conducted now, BBC News reported.