Ours is based on your salary during your working years. They look at your 10 highest-earning years, or maybe it's your 10 most recent years, something like that, then average it or otherwise run it through their algorithm and out comes your monthly benefit.I pretty much retired 61/62 so I collect mine in February next year. I've never been on any benefit my whole life so I'm looking forward to getting something back. I think it's something like $750 fortnight?