Income Tax Assessment Act 1997
If a partner *acquired some of the partner's interests in the asset on or after 20 September 1985 and some before that day, the partner is taken to have acquired a whole number of the *shares (but not all of them) before that day. The number is the greatest possible that (when expressed as a percentage of all the shares the partner acquires) does not exceed:
expressed as a percentage of:
The first element of each other *share's *cost base is the sum of the cost bases of the partner's interests that the partner *acquired on or after that day (less any liabilities the company undertakes to discharge in respect of all of those interests) divided by the number of the other shares.
There are special indexation rules for roll-overs: see Division 114 .122-160(3)
The first element of each other *share's *reduced cost base is worked out similarly. 122-160(4)
The *market value of an interest in an asset is worked out when the partner *disposed of it. The *cost base or *reduced cost base of an interest in an asset is worked out at the same time.