CGT is paid at the taxpayers marginal rates after any reduction/exemption is applied - not a straight 30%.

If its your house and you have no others then main residence exemption likely applies -changes if you rented it and never lived in it though.

^^^^WHS - still Stamp duty if you "give" the house to your brother.

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Arguably my Automobile is Awash with Alliteration - Subaru Sti S202