I heard this song for the first time the other day. It comes from the Bee Gees First album, which is actually their third album. This came out in 1967 and the Beatles influence from Revolver and Sergeant Peppers is unmistakable. I hear lots of Taxman here. Not necessarily a great song but not altogether awful and a definite nod to Paul McCartney on the bass guitar. Lamest part is the horrid and out of tune lead guitar solo.
Silly me, I didn't know the Bee Gees had a psychedelic period.