The Negative Gearing Loophole And What Savvy Homeowners Should Do Now
- Property Planning Australia
- 4 hours ago
- 4 min read
If you own a home in Australia right now, this could be one of the most important things you read all year.
The negative gearing and capital gains tax legislation passed Parliament and received royal assent on 26 June 2026. Buried within it is an opportunity that most homeowners have not yet fully grasped, and one that the team at Property Planning Australia believes deserves considerably more attention than it is currently receiving.

What the negative gearing and capital gains tax legislation changed
Under the new rules, negative gearing will be limited for established properties purchased after 7.30 pm on 12 May 2026. The word "purchased" is central to understanding this change.
If you already own a home that was purchased before 12 May 2026, you remain able to negatively gear it should you later convert it into an investment property. A spokesperson for Treasurer Jim Chalmers confirmed on 17 May that grandfathering arrangements cover all existing properties a person owned before the cut-off date, regardless of whether they were owner-occupied or on the rental market.
This means that it is available to any existing homeowner, and it will not exist for anyone purchasing an established property from this point forward.
Why this may change homeowner behaviour
The traditional wealth-building path in Australia has followed a fairly predictable pattern: purchase a home, settle in, build equity, and eventually purchase an investment property once income and confidence allow.
This grandfathering provision could alter that approach. Rather than purchasing a separate investment property, more homeowners may consider an "upgrade and retain" strategy, purchasing their next family home while converting their current home into a rental to retain the grandfathered negative gearing treatment. Others may choose to rentvest, renting a property that suits their lifestyle while their existing home becomes the investment.
In either case, this advantage will not be available to anyone purchasing an established property going forward, which is precisely why it warrants consideration now.
The mortgage strategy that determines the outcome
Being aware of this opportunity is only half the equation. The loan structure in place is what ultimately determines whether it can be utilised effectively.
If there is any realistic possibility that your current home could become an investment property in future, careful consideration should be given before paying down the loan.
Every dollar of principal repaid today represents a dollar of tax-deductible debt that is permanently lost once the property becomes an investment. Redrawing those funds at a later date does not reinstate the deductibility.
For this reason, interest-only repayments warrant serious consideration for anyone for whom conversion is even a possibility.
It preserves the debt balance, maximising the tax deductions available from the moment the property becomes an investment.
As interest-only repayments are lower than principal and interest repayments, the difference can be directed into an offset account without incurring additional interest.
The accumulated funds can be applied towards the next home, reducing non-deductible debt on a property for which no claim can be made.
With interest rates having risen and household budgets under pressure, moving to interest-only repayments can free up meaningful monthly cash flow. When directed into an offset account, this saving becomes a working financial buffer rather than being absorbed into everyday spending.
A consideration worth planning for
Interest-only periods typically run for one to five years, after which the loan reverts to principal and interest, usually over a shorter remaining term. This reversion can come as a significant shock if it has not been planned for in advance.
Consider a $1 million loan at 6.54 per cent. The interest-only repayment is approximately $5,450 per month. The same loan at 6.14 per cent on principal and interest over a full 30-year term equates to $6,086 per month.
However, should that loan revert to principal and interest over the remaining 25 years, the repayment increases to approximately $6,529 per month, several hundred to over a thousand dollars more than the interest-only repayment it replaces.
The solution is straightforward, though easily left too late. Homeowners should begin discussions with their strategic mortgage broker three to twelve months before their interest-only period expires, initiate any refinancing paperwork two to three months prior to expiry, and consider resetting the loan term back to 30 years upon refinancing to keep repayments manageable.
It is also worth noting that lenders assess borrowing capacity based on principal and interest repayments regardless of the loan type actually held, meaning that choosing interest-only can, somewhat counterintuitively, reduce borrowing capacity.
Self-employed borrowers in particular should plan well in advance, as lenders rely on tax returns that may reflect income from one to three years prior rather than current circumstances.
The key takeaway for homeowners
For anyone who owns a home purchased before 12 May 2026, the manner in which repayments are structured now could have a substantial and lasting impact on how much can be claimed should that property later become an investment.
This decision intersects with tax planning, lending strategy, cash flow and long-term property planning, which is precisely why it should not be made in isolation or left until the last moment.
If you are uncertain whether your current loan structure supports this kind of flexibility, it is worth discussing with a strategic mortgage broker sooner rather than later. Each day of delay in transitioning from principal and interest to interest-only reduces the benefit of doing so, and this is a decision far easier to plan for in advance than to address after the fact.
Contact the team at Property Planning Australia to review your lending structure and determine what this opportunity could mean for you.

