The 26-year-old hunk, who was rumoured to be dating 'Neighbours' co-star Halston Sag, played coy about his relationship status, claiming he is not actively looking for a girlfriend, reported Contactmusic.
Quizzed if he's off the market now, Efron said, "I don't know, I'm not really sure I'm in the market... I'm not investing. My money's out!"
The actor, whose previous romances include 'High School Musical' co-star Vanessa Hudgens and Lily Collins, is thought to have got close to Sag, 20, while they were filming the raunchy new comedy last year.