From property to portfolio

Your home loan is the engine, not the obstacle.

Two numbers in. See how disciplined extra repayments, equity release, and debt recycling can turn one home loan into a property portfolio over 25 years. Built for property investors, owner-occupiers, and anyone weighing their next move.

Charter Finance is a mortgage advisory firm. Every figure here is grounded in mortgage maths, not generic compounding. As part of our Financial Wholeness Journey™, we help clients structure their lending so cashflow turns into equity, and equity funds the next decision.
at year 25
$0
net portfolio
1 / 4
Run the numbers, your story

Better numbers. Better decisions. The maths on your own future.

Adjust the inputs to match your situation. The calculation runs the same debt-recycling model used in the story above. Numbers update live.

The Equity Engine

Run your own numbers.

This shows what leverage on the numbers detailed could support, and what income is needed at each step of the way. Equity opens the door. Income determines the ability to walk through it.

p.a.
years
/month
p.a.
Cotality Home Value Index, May 2026: Sydney grew 3.19% p.a. over five years, Melbourne 0.65% p.a. Adjust to your own view.
Default reflects a typical Australian metro investment property.
p.a.
Cotality, May 2026: Sydney 3.2%, Melbourne 3.9%, national 3.6%.
Sets the land tax schedule applied to your portfolio.
Set automatically from your income, assuming one main earner. If your household has two similar incomes your real marginal rate is likely lower, adjust it here. Australian resident rates for the 2026-27 financial year, including the 2% Medicare levy. Source: ATO.
Gross, before tax, excluding superannuation. If there are two of you, add both. This is the ceiling the model buys up to: it stops when a purchase would need more servicing income than you have. Above $500k, speak with Charter Finance rather than relying on this tool.
p.a.
How much your household income rises each year. As your income grows, more of the plan becomes serviceable. A conservative long-run figure is around 3%. Adjust to your own view.

Property value in this illustration $0
The home plus the investment properties in this scenario
Debt against it $0
Investment properties in the scenario 0
Bought when equity allows and income supports
Your home loan is gone by Year 0
The point your non-deductible debt reaches zero
How that adds up at year 25
Your home$0
Your investment properties$0
Property you own$0
Less your home loan (not deductible)$0
Less debt held against your investments$0
Total debt$0
Your net position$0
What each step would ask of you

Equity opens the door. Income determines the ability to walk through it. The figure beside each property is the combined household income you would need at the time you bought it, to cover every loan you hold by then plus your living costs, after your rent is counted. These are indicative figures, not a lender assessment, and they exclude your own borrowing history and the policy differences between lenders. The model stops buying once a purchase would need more income than your household has at that point, and because your income grows over time, that limit rises year on year. So the list below is not a target, it is a ceiling. If your income can stretch further than the model assumes, speak with Charter Finance rather than relying on this tool.

Each purchase Combined household income needed
Your rental position at year 25
Gross rent$0
Less interest$0
Less holding costs$0
Less land tax$0
Net rental position$0
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Why the home loan is the lever, not the obstacle.

Most owner-occupiers treat the mortgage as a 30-year sentence. We treat it as the engine. Every extra repayment converts cashflow into equity. Equity is what funds the next property. The investment portfolio is a downstream consequence of how the home loan was structured in the first place.

Extra repayments shrink non-deductible debt fastest.
Released equity becomes new deductible debt at each purchase.
Investment loans run interest-only while you still owe on your home, then switch to principal and interest.
Two engines compound: home equity, plus investment equity.

This calculator illustrates a debt-recycling strategy. Whether this strategy is appropriate for you depends on your tax position, lender policy, your investment goals, your borrowing capacity, and other factors not modelled here. Charter Finance is not a tax adviser. Speak to a qualified accountant or wealth planner before implementing. General information only.

Key assumptions in this model

Dev tweaks
$500
4.0%
39.0%