The 45 day rule relates to your ability to claim the franking credit on your tax return!Of course there is still the small shareholder exemption if your total "credits" are below $5,000.I would recommend you always get this type of info straight from the horses mouth...............https://www.ato.gov.au/Individuals/Tax-return/2022/In-detail/Publications/You-and-your-shares-2022/?page=11
(20min delay)