The first investment property is a lending question. The third is a structuring question, and the decisions made on the first one determine whether the third is possible at all.
How rental income is shaded, what the 2026 negative gearing and capital gains changes actually did, and why cross-collateralisation is expensive to unwind later.
Two changes have made that more acute. Rental income has never been counted in full, and since 2026 the tax treatment of established property differs materially from new builds.
This guide covers how lenders actually assess investors, what the 2026 legislation changed and for whom, why cross-collateralisation is expensive to unwind, and how to structure a portfolio so each purchase does not block the next.
Three adjustments are applied before a lender reaches a borrowing figure, and each one reduces it.
Investor pricing also sits above owner-occupier pricing, and interest only sits above principal and interest. Those margins are regulatory in origin rather than competitive, so they persist across lenders rather than being something you can shop away entirely.
The buffer mechanism is explained in the serviceability buffer.
The Treasury Laws Amendment (Tax Reform No. 1) Act 2026 changed two things that matter to property investors. Both are commonly misreported, so the detail is worth getting right.
| Change | Who it affects | From when |
|---|---|---|
| Negative gearing restricted | Residential investment properties purchased after 7:30pm AEST on 12 May 2026 | The 2027-28 income year |
| Losses quarantined | Affected properties only. Losses offset residential property income including capital gains, and unused losses carry forward | The 2027-28 income year |
| Properties held at announcement | Unaffected. Negative gearing continues until sold | Not applicable |
| New builds exempt | Including dwellings on vacant land and demolish-and-replace projects that increase dwelling numbers | Not applicable |
| CGT discount replaced | Individuals, trusts and partnerships. Cost base indexation plus a 30 per cent minimum tax on real gains | 1 July 2027 |
| Commercial property, shares, SMSFs | Excluded from the negative gearing change | Not applicable |
Two corrections to what is often repeated. Losses are not abolished, they are quarantined to residential property income and carried forward. And gains accruing before 1 July 2027 keep the 50 per cent discount, with indexation applying only to gains after that date.
The detail is set out in the second reading speech for the Bill. Tax treatment depends on your circumstances, so speak to your accountant rather than relying on a summary.
Further background sits in negative gearing explained and investment property tax deductions.
Cross-collateralisation means one lender holds two or more of your properties as security for the same borrowing. It usually happens by default rather than by decision, because it is the simplest structure for the lender to write.
Nothing goes wrong while you hold everything. The cost appears when you want to sell, refinance one property, or move a single loan to a different lender.
The alternative is standalone security. Each property secures its own loan, and if you are using equity from one to fund the deposit on another, that is done with a separate split rather than by adding the new property to the existing security. It takes slightly more work at setup and saves a great deal later.
Portfolios stop for structural reasons more often than for income reasons. These four decisions are the ones that determine how far you get.
| Decision | The easy choice | The choice that keeps options open |
|---|---|---|
| Security | Add the new property to the existing loan | Keep each property standalone |
| Equity access | Increase the existing loan | Create a separate split for the deposit, so interest is traceable |
| Lender choice | Use the same lender each time | Spread across lenders before you reach one lender’s exposure limit |
| Loan type | Whatever is offered | Chosen deliberately, since it changes both deductibility and assessed capacity |
The equity split point deserves emphasis. Interest deductibility follows the purpose the borrowed money was used for. Drawing a deposit from a loan that also carries your own home debt mixes deductible and non-deductible interest in one account, and your accountant then has to apportion it every year. A separate split for the investment portion avoids that permanently.
Investment loan structuring sydney investors get right early is rarely the cheapest option at the time. It is the one that does not need unwinding at purchase three.
More on this in using equity to buy an investment property.
Illustrative only, to show how the rules interact. Not tax advice and not a client file. Your position depends on your marginal rate, your other income and your holding structure, so confirm with your accountant.
| Factor | Established property bought after 12 May 2026 | New build |
|---|---|---|
| Negative gearing against salary | Not available | Available |
| Losses offset residential property income | Yes, including capital gains | Yes |
| Unused losses carried forward | Yes | Yes |
| Depreciation available | Limited on an existing dwelling | Substantial on a new build |
| CGT on gains after 1 July 2027 | Indexation plus 30 per cent minimum tax | Choice of the 50 per cent discount or indexation plus minimum tax |
| Purchase price in the same suburb | Generally lower | Generally higher |
| Rental yield | Varies | Often higher initially |
The table is not an argument for new builds. A new build usually costs more per square metre and the premium can outweigh the tax treatment entirely. What the 2026 changes did was remove the assumption that the two are equivalent, which means the comparison now has to be run property by property.
Investors ask me which is better now. There is no general answer. What changed is that the tax position is no longer a tiebreaker you can ignore, and the sums have to be done before you buy rather than at tax time.
Paritosh Wadhwani, Director and Principal Broker, APW Finance
A proportion of the gross rent rather than all of it, to allow for vacancy, management fees, council rates, insurance and maintenance. The proportion differs between lenders, and that difference is often what decides whether an application succeeds. Lenders also assess your existing loans at a buffer rate above the actual rate, which reduces capacity further with each property.
No. It is restricted for residential investment properties purchased after 7:30pm on 12 May 2026, from the 2027-28 income year. Losses on affected properties can still be deducted against residential property income including capital gains, and unused losses carry forward. Properties held at the announcement keep negative gearing until sold, and new builds are exempt.
From 1 July 2027 it is replaced for individuals, trusts and partnerships by cost base indexation plus a 30 per cent minimum tax rate on real gains. Gains that accrued before that date keep the 50 per cent discount, so the change applies to future growth rather than retrospectively. New build investors can choose between the two treatments when they sell.
It means one lender holds several of your properties as security for the same borrowing. It causes no difficulty while you hold everything, but it makes selling, refinancing or moving a single property considerably harder, because the lender controls the proceeds and the whole structure must be untangled. Standalone security for each property is generally preferable.
Usually by creating a separate loan split secured against your home, sized to cover the deposit and costs, then using that split for the purchase. Keeping it separate matters because interest deductibility follows the purpose the money was used for, and mixing investment borrowing into your home loan account means apportioning the interest every year.
No. The restriction applies to residential investment property. Commercial property, shares and other asset classes are unaffected, as are widely held trusts and superannuation funds including self managed super funds. That difference in treatment is one reason some investors have reconsidered commercial property since the legislation passed.
Investment lending rewards structure. The purchase that looks simplest at the time is often the one that blocks the next one.
Keep securities standalone, split equity releases properly, and run the tax comparison before you buy rather than after.
Read more about investment lending or equity release. You can also read how the cash rate affects loans or compare fixed against variable.
Ask us to review your portfolio structure.
Paritosh Wadhwani | Director and Principal Broker, APW Finance
Member of the Finance Brokers Association of Australia (FBAA). Arranging residential, commercial and specialist lending for Sydney clients across a panel of more than 50 lenders.
APW Finance Pty Ltd, 304/20a Lexington Drive, Bella Vista NSW 2153. Email: info@apwfinance.com. Phone: +61 447 959 546.
ACN 620 646 479 | ABN 79 620 646 479
This guide is general information only. It does not take into account your objectives, financial situation or needs, and it is not financial or credit advice. Lending criteria, interest rates, duty thresholds and government schemes change, and every application is subject to lender approval. Consider whether this information suits your circumstances and seek independent advice before acting. Figures quoted are current at the date below and should be confirmed before you rely on them. Last reviewed: October 2026.
APW Finance Pty Ltd delivers expert lending solutions with personalised service, empowering clients across residential, commercial, and business sectors.