Ep. 342: Your Mortgage Strategy Questions Answered – The Smarter Way to Structure Loans and Grow Wealth
Ep. 342: Your Mortgage Strategy Questions Answered – The Smarter Way to Structure Loans and Grow Wealth
In this episode of The Property Trio Podcast, Cate hosts a listener questions episode featuring the mortgage questions borrowers ask most often. Inspired by a listener question from Callum, the Trio open the vault on borrowing capacity, rental income treatment, interest-only strategies, and the tax traps that can quietly cost property owners hundreds of thousands over time.
The episode kicks off with a deep dive into a deceptively simple question: does a positively geared investment property improve borrowing capacity? Using an example, Dave explains that while positive cash flow does help, the outcome is entirely lender dependent. Income shading, servicing buffers, APRA rules, and how existing debt is assessed all play a role. In Callum’s scenario, the positively geared investor could borrow roughly $38,000 more, but that result would vary materially from lender to lender. There is no single borrowing capacity; only lender-specific outcomes.
The conversation then turns to short-term rentals like Airbnb, an increasingly common area of confusion. While high-yield short-term rentals can look fantastic on paper, lenders often apply heavier shading to this income. Mike and Dave unpack why banks view short-term rental income as more volatile, and why lender selection and broker expertise can make a meaningful difference.
Next, the trio address interest-only lending, challenging the assumption that it’s always a poor financial choice. Dave explains how interest-only repayments can be a powerful strategy when balancing deductible investment debt against non-deductible home loans. Paying down the “wrong” loan too aggressively can permanently reduce future tax deductions.
One of the most important segments covers what happens to tax deductibility when loans are paid out. Dave outlines why once an investment loan is closed, the deduction is gone forever, (unless handled correctly through security substitution or temporary arrangements like term deposits). The Trio reinforce a crucial principle…. deductibility depends on what borrowed funds are used for, not what what secures the loan.
This episode wraps with a reminder that mortgage strategy matters more than interest rates, and that most multi-property owners unknowingly leave money on the table due to poor structuring.
And our gold nuggets!…..
Mike Mortlock’s gold nugget: “You don’t know what you don’t know.” For any major financial decision, we should be getting professional advice.
Dave Johnston’s gold nugget: When it comes to borrowing structure or tax outcomes, people should never assume what works for someone else will work for you.
Wishing our loyal listeners a happy and prosperous 2026!
Related episodes:
Ep. 9: Why your mortgage strategy is more important than your interest rate?
Ep. 30: Money Management – 7 steps to success
Ep. 48: Offset accounts – God’s gift to Mortgage Strategy!
Ep. 191: Risk management and the things that can go wrong when mortgage strategy is ineffective
Upcoming ep: #343: The Trio’s 2026 Predictions – Bold Calls for Price Growth, Top Performing Cities & Investor Momentum
And thank you to those who registered early for our live event in March. Early birds get access to the first round of tickets, and general sales will open later this week. Keep an eye out on our socials!