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YellowPotato(Taxicorn)Taxicorn
23 Apr 2026

Best to ask a tax agent or ATO's technical assistance or private ruling


Generally, claiming interest expense is based on ownership of property and generally, having extra names on the loan is not a problem.

Reading Example: joint borrowers, sole owner – claiming all interest incurred may help



Though the part that I'm unsure of is that both of you are contributing to the loan. This might be treated as a loan from the non-owner to the owner.

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Cass(I'm new)I'm new
23 Apr 2026

Thank you for your reply


Both of us are contributing the loan repayments and I couldn't find any article related to this :(

YellowPotato(Taxicorn)Taxicorn
23 Apr 2026

*I just realised there's no mention of it in your question, the property needs to be a income producing asset in order to be able to claim the interest as a deduction. Otherwise, it is added to cost base

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RE: Is interest deductible for sole ownership with a joint loan? | ATO Community