Author: KaraATO(Community Support)Community Support 14 Apr 2026
Hi @rummage_au,
You need to be able to able to clearly trace how the redrawn funds are used. To claim an interest deduction, you need to show a clear link between the borrowed money and the investment it was used for.
It's important to keep:
- Detailed records showing the flow of funds from the redraw, through the offset account, and into the brokerage account.
- Dates, amounts, and transaction records that clearly trace the funds to their ultimate investment use.
Offset accounts often have multiple transactions, so mixing investment funds with personal money can make tracing more difficult. We've responded to recent post that goes into this in more detail.
Because these arrangements can get complex, we can't give a definite yes or no. It might be worth speaking with a registered tax agent. They can review your specific arrangement and lender requirements.