Cost Base
ATO (CWLTH) resource. Rules Mate indexes this as part of the Australian compliance corpus. Click through for the regulator's primary source.
https://www.ato.gov.au/forms-and-instructions/managed-investment-schemes-associated-with-mark-letten/capital-gains-and-losses/how-to-calculate-capital-gains-and-losses/cost-base
Rules Mate indexes Australian government compliance resources to make them searchable. We link to + summarise; always verify the live source before acting.