Ep 375: What is your return on borrowing capacity (RoBC)

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In this episode, Stuart introduces a powerful framework for property investors: Return on Borrowing Capacity (RoBC). With borrowing capacity often being a limited and scarce resource, Stuart explains why it’s critical to allocate it where it delivers the greatest after-tax, long-term wealth outcomes. He unpacks the concept by comparing different investment properties with identical total returns but varying mixes of income and capital growth, demonstrating how the wrong choice can halve your wealth creation over 30 years.

Stuart discusses why investors should treat borrowing capacity like capital; it must be deployed strategically, not just conveniently. He explores the trade-offs between high-yield and high-growth assets, the real impact of rental income on borrowing limits, and why relying solely on positive cash flow can be a trap if it hinders your ability to grow wealth elsewhere.

The episode also covers scenarios where reallocating borrowing capacity by selling underperforming assets can unlock better long-term outcomes. Finally, Stuart reminds listeners that while a spreadsheet can model returns, wise portfolio decisions must also account for opportunity cost, tax, and quality. Whether you’re just starting out or rebalancing your portfolio, this episode will sharpen how you think about borrowing and investing for long-term success.

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Important

This podcast provides general information about finance, tax and credit. It doesn't take into account your specific objectives, financial situation or needs, so you need to assess whether it's relevant to your circumstances before acting on it. If you're not sure, speak to a licensed, trustworthy professional.