Actually I do. Tax paid by company. Zero tax by retire in no tax enviroment enables credit to bybe paid (effectively welfare), hence government tax redirected to welfare. Franking credits returns by the ATO should be in the form of debit cards. Dick Smith can give you an insight if you are confused mate https://www.theguardian.com/australia-news/2019/jul/17/dick-smith-reveals-he-received-500000-in-franking-credits-in-a-single-year