If you read the annual statement it has a reconciliation between the taxable components of the distribution and the cash you received. Only the taxable components details go into your return.
It's good practice to be aware of the tax consequences of what you have invested in - trusts distribute cash profits but you are taxed on the taxable components of the distributions which include interest, dividends, foreign income and capital gains. You may also receive franking credits and foreign tax credits too.
Additionally you need to separately track the AMIT cost base adjustments.