June 22, 2026
4mins

How to increase borrowing capacity as a property investor

Most investors think the fix is a higher yielding property. It isn't. Serviceability is driven by personal income, not rental returns. Here is what actually moves the needle.

The portfolio doesn't build itself

There is a moment most investors don't see coming.

The equity is there. The property has performed. On paper the position looks strong. Then they speak to their broker and find out the next purchase isn't possible. Not because the market failed them. Because their income and cash flow position hasn't moved in two years.

The asset did its job. The investor didn't do theirs.

What most investors get wrong about serviceability

When that conversation with the broker doesn't go the way they expected, most investors reach for the same diagnosis. The properties aren't returning enough. If the yield was higher, or the rent was stronger, the position would look different.

That is the wrong diagnosis.

Serviceability is assessed primarily on personal income. What you earn. Your salary, your business income, the money that hits your account before the properties are involved. Rental income from investment properties is included by lenders, but at a discount, typically somewhere between seventy and eighty cents in the dollar. It supports the position. It does not create it.

The investor waiting for the portfolio to generate enough income to fund the next purchase is working the wrong lever. The portfolio grows over time. It is not the engine of the next purchase. You are.

The gap between two investors

There is an investor who treats the properties as the strategy. Income, spending, the offset, the rent review, all of it sits in the background. Not ignored. Just never the focus. The assumption running underneath everything is that the assets will carry the weight over time.

The other investor has spoken to their broker. Not just to ask what they can borrow today. To understand specifically what the gap is and what would need to change for the next purchase to be possible. They came away with a number.

One investor I am working with did exactly this. They made a deliberate decision to take a significantly higher paying role for a defined period, knowing it was not permanent. They gave themselves five years. The goal was accumulation. The income was the vehicle.

Most people cannot make that move at that scale. But the principle holds at every level below it. The question is not whether you can dramatically increase your income. It is whether you are pulling every lever available to you, and whether you have been genuinely honest about what you are leaving on the table.

The levers most investors underuse

Most of the movement happens on the personal side, not the property side.

  • Is there any capacity to increase your working hours, even incrementally and for a defined period?
  • Is a second income stream available for twelve months while the gap closes?
  • When did you last have a direct conversation with your employer about your pay?
  • Is there overtime or contract work that could run alongside your main income?
  • Where is discretionary spending going that could be redirected toward the offset instead
  • Is the offset being used as actively as it could be?

And on the property side, one question worth asking: is the rent on your existing property at market, or has it drifted?

That question matters. But it is one input among several. The lender will discount it regardless. The property contributes to the position. Your income drives it.

What this environment makes harder to ignore

The 2026–27 Federal Budget has proposed changes that directly affect the calculus for property investors, particularly around negative gearing and capital gains tax.* For investors who assumed growth would carry the strategy, the position is becoming harder to hold. Equity without serviceability is a number you can see but not use.

This is not a new problem. In a low rate environment you could get away with treating income and cash flow as background noise. The growth carried enough. But the investors who applied this discipline then, who managed their position deliberately rather than waiting on the assets, are now further along.

The habits existed before the conditions made them necessary. That is the whole difference.

The question worth sitting with

If a lender assessed your position today, what would the picture look like?

Has your income grown above CPI in the last two years, or has it simply kept pace with living costs? Because one moves your borrowing position. The other doesn't. And if it hasn't kept pace at all, the gap between where you sit and what the next purchase requires is wider than it looks on paper.

Is your offset working as hard as it could be? Do you know the actual gap between where you sit now and what the next purchase requires? Have you modelled what future rate increases could look like if you are planning to buy again soon?

The clearest signal I see in investors who keep moving is not which properties they are looking at. It is whether they asked those questions, and what they did once they had the answers.

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*The negative gearing and capital gains tax changes referenced above were announced as part of the 2026–27 Federal Budget and are proposed but not yet legislated. Confirm the current status of these measures with a relevant licensed professional before making any decisions.

Disclaimer: The information in this article is general in nature and does not take into account your personal objectives, financial situation, or needs. It is not financial, legal, or tax advice. The Nelis Group accepts no liability for actions taken based on this content. You should seek independent advice from a relevant licensed professional before making any decisions and always confirm the latest rules and thresholds with your state revenue office or relevant authority.

James Nelis
Written by
James Nelis

Founder of The Nelis Group, a boutique buyers agency in Brisbane helping time-poor professionals build durable property portfolios. Structured thinking. No hype.