When to Structure Your Investment Loan as a Lawyer

The negative gearing quarantine and CGT indexation changes take effect from 1 July 2027. Properties acquired before 7:30pm AEST on 12 May 2026 are grandfathered under the current rules. Properties acquired between that date and 30 June 2027 receive a transitional arrangement: you may negatively gear them until 30 June 2027, after which losses are quarantined unless the property qualifies as an eligible new build. The consequence is that loan structure decisions made now have multi-decade implications for deductibility, cash flow, and portfolio expansion capacity.

This article addresses the core structural questions: whether to fix or vary the rate, whether to take interest-only or principal-and-interest, how to document the purpose of each borrowing, and when to separate facilities to protect deductibility as your circumstances change.

Interest-Only or Principal-and-Interest for Deductibility Purposes

An interest-only period reduces cash outflow and maximises the deductible component of each repayment, because principal reductions are not deductible. Interest on borrowings used to acquire or hold income-producing property is deductible to the extent the property is rented or genuinely available for rent.

Consider a lawyer who acquires an investment property in July and negotiates a five-year interest-only term. Monthly repayments during that period are wholly deductible, and surplus cash can be directed to non-deductible debt such as the home loan or held for the next acquisition. At the end of the interest-only term, the loan reverts to principal-and-interest unless renegotiated. The principal component from that point forward is not deductible, so the absolute tax benefit per dollar repaid declines. Many investors with sufficient income refinance at that point to extend the interest-only term or release equity for the next purchase, maintaining deductibility and deferring principal reduction until the portfolio is larger.

The counterargument is that principal-and-interest reduces the outstanding balance and therefore the breakeven vacancy rate over time. If you intend to hold the property long term and do not plan to leverage further, principal reduction gives you a lower loan-to-value ratio and more flexibility if rental income falls. The decision depends on whether your priority is cash flow today or balance sheet resilience in ten years.

Fixed Rate or Variable Rate for Investment Properties

A variable rate on an investment loan gives you access to offset accounts, unrestricted additional repayments, and the ability to redraw or refinance without break costs. A fixed rate locks in a known deductible expense for the fixed period, but most lenders prohibit offset, limit additional repayments to $10,000 or $20,000 per year, and impose break costs if you repay or refinance early.

The technical consideration is not the rate itself but the features you need to preserve. If you plan to use an offset account to park trust distributions, bonuses, or sale proceeds while maintaining full deductibility on the loan, a variable rate is required. If you want certainty of repayment for budgeting or covenant purposes and do not expect to refinance or sell within the fixed term, a fixed rate is defensible. Some lenders permit a split: part fixed for stability, part variable for flexibility. The split must be documented at the time the loan is drawn, because changing the structure later can create a new borrowing event that affects your deductibility position if the redrawn funds are used for a different purpose.

Documenting Purpose to Preserve Deductibility Across Multiple Properties

The purpose test for interest deductibility is applied to each borrowing separately, not to the security. If you borrow $600,000 secured against an investment property to purchase that property, the interest is deductible. If you later refinance and draw an additional $100,000 for a private expense such as a car or holiday, the interest on that $100,000 is not deductible even though the security is an income-producing asset. Conversely, if you borrow against your home to acquire an investment property, the interest remains deductible because the funds were used to produce assessable income.

When expanding your property portfolio, the cleanest structure is to separate each investment loan into its own facility. Facility A funds investment property one. Facility B funds investment property two. If you later release equity from property one to fund property three, you document that drawdown as a new facility or sub-limit with a clear purpose statement in the loan agreement. This separation prevents co-mingling and makes deductibility transparent if the ATO reviews your returns. It also simplifies the accounting if you sell one property and want to discharge only the debt associated with that asset.

We regularly see lawyers who consolidated multiple investment loans into a single facility during a refinance without realising that subsequent redraws or top-ups to that facility can blur the purpose and expose part of the interest to challenge. The solution is not to avoid refinancing but to insist that each loan purpose remains separately identifiable in the facility structure. Most lenders will accommodate this if you request it at the time of application.

Debt-to-Income and Serviceability Under APRA Settings

APRA's DTI cap applies separately to investor and owner-occupier portfolios. A lender may approve up to 20 per cent of new investor loans at a DTI of six times gross income or greater. Once that cap is reached, further investor lending at high DTI is restricted. The serviceability buffer is three percentage points above the product rate, so an investment loan priced at 6.2 per cent variable is assessed at 9.2 per cent for serviceability purposes.

The practical constraint is that high earners with multiple investment properties can exhaust their DTI capacity before exhausting their actual cash flow. A corporate lawyer earning $250,000 can theoretically service $1.5 million in investor debt at a DTI of six, but the serviceability test at 9.2 per cent may only allow $1.2 million depending on other commitments and rental income assumptions. Lenders typically shade rental income by 20 per cent to account for vacancy, and some apply higher shading if the property is in a market with a demonstrated vacancy rate above 3 per cent.

The mitigation is to structure loans to maximise recognised rental income and minimise non-deductible debt. Paying down your home loan or consolidating consumer debt through debt consolidation increases your net serviceability position. Using interest-only terms on investment loans also improves cash flow, which supports further borrowing. The DTI cap itself is a hard ceiling, but within that ceiling, serviceability can be optimised by adjusting the liability side of the assessment.

Negative Gearing Quarantine and the Eligible New Build Exemption

From 1 July 2027, net rental losses on residential investment properties acquired on or after 7:30pm AEST on 12 May 2026 cannot be offset against salary or other non-residential income unless the property is an eligible new build. Losses are quarantined and may only be offset against other residential rental income, carried forward to offset future residential rental income, or applied against capital gains on the sale of a residential property.

An eligible new build is a dwelling constructed on previously vacant land or a dwelling that replaces an existing property where the total number of dwellings increases. A knock-down rebuild that does not increase dwelling numbers is not eligible. A substantial renovation is not eligible. A new build that was occupied for more than 12 months before you acquired it is also not eligible. The exemption applies only to the first investor purchaser if the property was never occupied, or to a subsequent purchaser if the property was occupied for 12 months or less.

The financial consequence for non-eligible properties is that a lawyer earning $250,000 who acquires a $700,000 established investment property in August 2026 and incurs a $15,000 annual rental loss will not be able to claim that loss against salary from 1 July 2027 onwards. The loss is banked and reduces the taxable gain when the property is sold or offsets rental income from other properties. The immediate tax benefit is removed, which changes the cash flow equation and may reduce the attractiveness of established property for high-income earners who were relying on the refund to service the loan. Grandfathered properties and eligible new builds remain unaffected, which is why new-build investment product is now receiving closer attention from buyers who want to preserve deductibility.

Loan-to-Value Ratio and Lenders Mortgage Insurance for Investors

Most lenders cap investor LVR at 90 per cent, and many apply an 80 per cent ceiling for interest-only loans. LMI is charged on investor loans above 80 per cent LVR, and the premium is generally higher than for an equivalent owner-occupier loan because the default risk is assessed as greater. Lawyers may access LMI waivers up to 90 per cent LVR with certain lenders, which can save $15,000 to $30,000 on a purchase in the $600,000 to $800,000 range depending on the deposit and product.

A 10 per cent deposit on an investment property means you are borrowing 90 per cent and paying LMI unless you qualify for a waiver. A 20 per cent deposit eliminates LMI entirely and may also unlock better pricing, because lenders often reserve their sharpest investor rates for loans below 80 per cent LVR. The trade-off is that a larger deposit ties up capital that could be deployed elsewhere or held as a buffer for vacancy or maintenance.

If you are buying your first investment property, the deposit is typically sourced from savings or from equity in your home. If the latter, you are effectively gearing your home to gear the investment. The interest on the equity release is deductible provided the funds are used to acquire the investment property and the purpose is documented. This is a common structure for lawyers with substantial home equity but limited cash savings, and it accelerates portfolio growth without requiring years of saving for a second deposit.

Rate Discounts and How They Are Negotiated for Investor Loans

Published investor rates are rarely the best available rate. Lenders price investor loans higher than owner-occupier loans to reflect the higher regulatory capital charge and perceived risk, but the margin between headline and negotiated rates can be 30 to 80 basis points depending on LVR, loan size, and the broker or banker's discretion.

A lawyer applying for a $600,000 investment loan at 80 per cent LVR might see a published variable rate of 6.5 per cent and a negotiated rate of 6.2 per cent. The difference over a year is roughly $1,800 in interest. Over ten years, even without further rate changes, that is $18,000. The discount is not automatic. It is typically negotiated at the application stage based on the perceived quality of the borrower, the size of the overall relationship, and whether the broker or lender has volume-based pricing authority.

We regularly secure deeper discounts for lawyers because the profession is viewed as lower credit risk and because we place volume with lenders who recognise that and price accordingly. The process is opaque from the outside, but the principle is that the lender has discretion and will use it if the application justifies it. The key is to apply through a channel that has access to that discretion, which is not always available direct to the lender's retail pricing team.

When to Refinance Your Investment Loan

Refinancing an investment loan makes sense when the rate you are paying exceeds the available market rate by a margin large enough to justify the cost and effort of switching, or when your current loan no longer suits your strategy. The cost includes discharge fees from the old lender, application fees for the new lender, valuation fees, and potential settlement or legal costs. The total is typically $1,000 to $2,500 depending on the lender and state.

If your current rate is 6.8 per cent and the available rate is 6.2 per cent on a $500,000 balance, you save roughly $3,000 per year. The refinance pays for itself in the first year and continues to deliver savings until rates or circumstances change again. If your current loan is fixed and break costs are $8,000, the payback period extends to roughly three years, and you need to assess whether you expect to hold the loan and the property for that long.

The non-rate reasons to refinance include releasing equity to fund the next purchase, consolidating multiple investment loans for simpler administration, or moving to a lender that permits offset or other features your current facility does not offer. Investment loan refinancing is also triggered by life changes: a switch to part-time work, a move overseas, or a decision to sell one property and redeploy the capital. The structure that made sense five years ago may not suit your current position, and the cost of inertia is often higher than the cost of the refinance itself.

Call one of our team or book an appointment at a time that works for you. We will review your current position, model the scenarios that suit your timeline and risk tolerance, and arrange the facility structure that keeps your options open as the tax and regulatory settings continue to evolve.

Frequently Asked Questions