Can I extend my Premium Investor visa?

​​​​​No. Premium Investor visas cannot not be extended. The duration of a provisional Premium Investor visa is four years and three months. Premium Investor visa holders can apply for the subclass 888 permanent Premium Investor visa after twelve months, or they can remain on a provisional Premium Investor visa for up to four years and three months and apply for the subclass 888 at any time after having held their visa for twelve months, provided they maintain their complying premium investment.