Top Tips to Build Wealth Through Property Investment

Property investment remains one of the most reliable ways to build wealth over time, but the decisions you make at the start shape your capacity to grow for years ahead.

The question most people face is not whether to invest, but how to structure their first purchase in a way that preserves borrowing capacity, manages risk, and aligns with the tax treatment that applies to their property. For buyers in Camden, where the local market offers a range of property types suited to different investment strategies, understanding how investment loans work and how recent legislative changes affect returns is a practical starting point.

What Makes an Investment Loan Different from a Home Loan

An investment loan is assessed and priced differently because the property secures income rather than shelter. Lenders evaluate rental income using a discounting factor, typically around 80 per cent of the gross rent, to account for vacancy periods and maintenance costs. They also apply a serviceability buffer, currently set at 3 percentage points above the product rate under APRA's APS 220 Credit Risk Management framework.

Consider a buyer purchasing a three-bedroom house in Elderslie with an expected rental yield of $650 per week. The lender will assess serviceability using $520 per week of that income, and the buyer's other commitments will be tested at a rate well above the advertised variable or fixed rate. This is why borrowing capacity for investment purposes is often lower than for an owner-occupied purchase, even when the rental income is strong.

The loan structure you choose, whether variable or fixed, interest-only or principal and interest, directly affects both cash flow and your ability to access further credit as your portfolio grows.

Interest-Only Versus Principal and Interest Repayments

Interest-only repayments reduce your monthly outgoings and can improve cash flow in the early years of ownership. Most lenders offer interest-only periods of up to five years on investment property finance, after which the loan reverts to principal and interest unless you apply to extend.

The benefit is not just lower repayments. Paying down principal on an investment loan uses after-tax dollars, while interest remains a claimable expense. For a property that generates rental income below the cost of holding it, keeping repayments lower during the interest-only period can reduce the gap between income and expense, which matters when you are managing multiple commitments.

Once the interest-only period ends, repayments increase substantially because the principal is amortised over the remaining loan term. A borrower with a loan amount of $500,000 at a variable interest rate of 6.5 per cent will see monthly repayments rise from around $2,700 to over $3,600 when the loan converts. Planning for that shift, or refinancing before it occurs, is something we regularly see investors underestimate.

How Rental Income Affects Borrowing Capacity

Rental income is treated as assessable income for loan serviceability, but not at full value. Lenders apply a discount to account for periods when the property may be vacant or undergoing repairs. The standard shading factor is 20 per cent, though some lenders use higher rates depending on location and property type.

For a property in Camden generating $650 per week, the lender will assess $520 per week, or roughly $27,000 per year, as contributing to your serviceability. If you are borrowing to fund that property and your other debts are already close to your income limit, that discounted rental income becomes critical in determining whether the loan is approved and at what size.

This is also where debt-to-income caps, introduced in February this year, start to apply. Lenders may fund up to 20 per cent of new investor loans at a DTI of 6 times or greater, but most borrowers will find serviceability constrained well before that threshold. The interaction between rental income shading, DTI settings, and the serviceability buffer means that each loan reduces your capacity for the next one, unless you build equity or increase your income between purchases.

Negative Gearing and the Changes Taking Effect in July 2027

Negative gearing allows investors to offset rental losses against other income, reducing taxable income in the years when property expenses exceed rent. This has been a cornerstone of Australian property investment for decades, but the rules are changing.

Under the Treasury Laws Amendment (Tax Reform No. 1) Act 2026, rental losses on residential dwellings acquired on or after 7.30pm AEST on 12 May 2026 will be quarantined from 1 July 2027. Those losses can only be offset against other residential rental income or carried forward to offset future rental income or capital gains. They cannot be offset against salary, wages, or other non-residential income.

Properties held before 12 May 2026 are grandfathered and will continue under the existing negative gearing rules until sold. Properties acquired between 12 May 2026 and 30 June 2027 may be negatively geared under the old rules until 30 June 2027 only.

The exception is for eligible new residential dwellings, which retain access to negative gearing indefinitely. An eligible new build is defined as a dwelling constructed on previously vacant land, or a dwelling that replaces an existing property where the total number of dwellings increases. Knock-down rebuilds that do not increase dwelling numbers are not eligible, nor are substantial renovations.

For Camden investors, this distinction matters. The area has seen significant new housing supply in estates such as Spring Farm, Oran Park, and Catherine Field. A newly constructed house purchased in one of these developments after 12 May 2026 retains negative gearing benefits. An established home in the older parts of Camden, purchased after that date, does not.

Capital Gains Tax Indexation and the New Minimum Rate

From 1 July 2027, the 50 per cent CGT discount for individuals, trusts, and partnerships will be replaced for affected assets with cost base indexation using the Consumer Price Index and a minimum 30 per cent tax rate on real capital gains.

Gains that accrued before 1 July 2027 on properties already held will continue under the current 50 per cent discount. The new arrangements apply only to gains accruing after that date. For eligible new build residential properties, investors can elect between the 50 per cent discount and indexation with the 30 per cent minimum tax.

The effect is that investors holding new builds have flexibility depending on their marginal tax rate and how long they hold the property. Investors holding established properties purchased after 12 May 2026 will see reduced tax benefits on both the income and capital sides.

Loan to Value Ratio and Lenders Mortgage Insurance

Most lenders will lend up to 90 per cent of the property value for investment purposes, though rates and serviceability improve at lower LVRs. Borrowing above 80 per cent triggers Lenders Mortgage Insurance, which protects the lender if you default but adds a capitalised cost to your loan.

LMI premiums vary depending on the loan amount, LVR, and lender, but they typically range from a few thousand dollars at 85 per cent LVR to over $20,000 at 90 per cent for a property valued around $700,000. The premium is usually added to the loan rather than paid upfront, which increases your borrowing and your ongoing interest cost.

Investors with equity in an existing property, whether owner-occupied or investment, can often avoid LMI by using that equity as part of their deposit. This involves a cross-collateralised security structure or a separate equity release, both of which have implications for future refinancing and should be discussed with a broker before proceeding.

Variable Rate, Fixed Rate, or Split Strategy

Variable rates allow you to make extra repayments, access offset or redraw facilities, and benefit from rate cuts when they occur. Fixed rates lock in your repayment for a set period, typically one to five years, and provide certainty during that time. A split structure combines both, allowing you to manage interest rate risk while retaining some flexibility.

For investors, the choice often comes down to cash flow and risk tolerance. If you are borrowing close to your serviceability limit, locking in a portion of the loan at a fixed rate can protect you from repayment increases if variable rates rise. If you expect to build equity quickly or plan to refinance within a few years, a variable rate or short fixed term may offer more flexibility.

Split loans allow you to fix a portion, say 50 or 60 per cent, while leaving the remainder on a variable rate with an offset account. This structure is common among investors who want certainty on part of their commitment but want to retain access to redraw or offset features on the rest. It does add complexity, and not all lenders offer competitive pricing on split structures, so comparing investment loan products across multiple lenders is worthwhile.

Building a Portfolio Without Overextending

Each property you purchase reduces your borrowing capacity for the next, even if the rental income covers most of the cost. This is because lenders assess rental income at a discount and test your ability to service debt at a rate well above what you are actually paying.

In our experience, investors who build sustainable portfolios do so by maintaining a gap between what they borrow and what they could borrow. That gap provides room for rate rises, rental vacancies, and unexpected repairs without forcing a sale or refinance under pressure.

One approach is to target properties with strong rental yields relative to purchase price, which improves serviceability for future loans. Another is to use principal and interest repayments on at least one property in the portfolio to build equity faster, even if other loans remain interest-only. Both strategies require a clear understanding of your current and projected borrowing capacity, which is where working with a broker who can model scenarios across multiple lenders becomes valuable.

Camden's housing market includes a mix of established homes, new estates, and medium-density developments, each with different yield profiles and capital growth prospects. Aligning your purchase with your borrowing capacity, tax position, and long-term plans is more important than chasing the lowest interest rate or the highest projected growth.

If you are considering your first investment property, or looking to add to an existing portfolio, we would welcome the opportunity to discuss how different loan structures and lender policies apply to your situation. Call one of our team or book an appointment at a time that works for you.

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