Investment Loan Features & Everything You Need to Know

What Investment Loan Features Actually Control

Investment loan features determine how you service debt, when you pay principal, how you access funds, and whether you retain borrowing capacity for subsequent acquisitions. These are structural decisions, not rate decisions. The difference between interest-only and principal-and-interest repayment on a $600,000 loan at current variable rates is roughly $1,800 per month in cash flow. That difference compounds when you hold multiple properties or intend to acquire a second asset within three years.

Consider a solicitor purchasing a two-bedroom apartment as a first investment. The property generates $2,400 per month in rent. An interest-only loan at current rates costs approximately $2,500 per month. A principal-and-interest loan on the same amount costs closer to $4,300 per month. The interest-only structure creates a monthly shortfall of $100. The principal-and-interest structure creates a shortfall of $1,900. Both are negatively geared, but the second scenario erodes cash reserves nineteen times faster and materially reduces serviceability for any subsequent borrowing within the interest-only period.

Interest-Only Periods and Repayment Reversion

Interest-only periods on residential investment loans typically run for one to five years. At the end of the interest-only period, the loan reverts to principal-and-interest repayment unless you request an extension or refinance. Lenders assess extensions on a case-by-case basis. Some will extend once. Others require refinancing to a new product. The reversion is not discretionary. If you take no action, repayments increase automatically.

Under APS 112, a loan with an interest-only period exceeding five years and an LVR above 80 per cent is classified as non-standard and attracts a higher risk weight. That classification affects lender pricing and, in some cases, eligibility. Most lenders structure their investor loan products with maximum five-year interest-only terms to avoid the non-standard classification.

For properties acquired after 12 May 2026, the new negative gearing rules apply from the 2027-28 income year. Losses on these properties are deductible only against residential property income, not against salary. If your only income source is employment income and you acquire an established property after that date, the tax benefit of negative gearing is deferred until you generate assessable income from residential property, including capital gains on disposal. The interest-only feature does not change the tax treatment, but it does determine the size of the deductible loss in each financial year.

Offset Accounts Versus Redraw Facilities

An offset account is a transaction account linked to your loan. The balance in the offset account reduces the interest charged on the loan without reducing the loan balance itself. A redraw facility allows you to withdraw additional repayments you have made above the minimum required.

For investment loans, the offset account preserves the deductibility of interest on the full loan amount. If you deposit $50,000 into an offset account linked to a $600,000 investment loan, you pay interest on $550,000, but the loan balance remains $600,000 and interest on the full amount remains deductible. If you instead pay $50,000 into the loan via redraw and later withdraw it for private purposes, the ATO may treat the redrawn portion as a separate private loan, and interest on that portion is not deductible.

Offset account balances do not reduce the loan amount for LVR purposes under APS 112. A $600,000 loan secured against a property valued at $750,000 has an LVR of 80 per cent regardless of whether $50,000 sits in an offset account. This affects risk weighting and capital requirements for the lender, but it does not affect your eligibility or the interest rate you are offered on a standard investment loan product.

For legal professionals considering debt recycling, the offset structure allows you to maintain deductible debt at the highest sustainable level while holding non-deductible debt in a separate facility with offset.

Variable Rate Versus Fixed Rate on Investment Loans

Variable rate investment loans allow unlimited additional repayments and full offset functionality. Fixed rate investment loans typically do not offer offset and restrict additional repayments to $10,000 or $20,000 per year without penalty. The fixed period usually runs for one to five years, after which the loan reverts to a variable rate unless you refix.

The decision is about cash flow predictability and flexibility, not about picking the direction of rate movements. A fixed rate locks your repayment amount for the fixed period. That certainty can be useful if you are managing multiple liabilities or if your income is variable. The cost is reduced flexibility. If you want to pay down the loan faster, sell the property, or refinance during the fixed period, break costs may apply.

Break costs are calculated based on the difference between the fixed rate on your loan and the rate the lender can earn by reinvesting the funds for the remaining fixed period. If rates have fallen since you fixed, break costs can be substantial. If rates have risen, break costs may be zero or the lender may even pay you a break gain. The calculation is not transparent and varies between lenders.

For investment loans, variable rate structures are more common because they allow offset, preserve flexibility, and avoid break cost risk. Fixed rates are sometimes used on a portion of the loan to create partial certainty without giving up all flexibility.

Portability and Security Substitution

Portability allows you to transfer your existing loan to a new security without discharging and rewriting the loan. Security substitution is useful when you sell one investment property and purchase another within a short period and want to avoid discharge fees, application fees, and valuation fees on a new loan.

Not all lenders offer portability on investment loans. Those that do typically require the new security to be of equal or greater value and require the loan amount to remain the same or reduce. If you are increasing the loan amount, portability does not apply and you need to submit a new application. Timeframes are tight. Most lenders require the substitution to occur within 90 days of discharge of the original security.

For legal professionals expanding a property portfolio, portability can reduce transaction costs, but it should not drive the decision to sell or purchase. The property and the price matter more than the loan feature.

Loan Splits and Partial Fixes

A loan split allows you to divide a single loan facility into multiple sub-accounts, each with its own rate type, repayment structure, and features. You might split a $600,000 investment loan into $300,000 fixed at a set rate for three years and $300,000 variable with full offset.

Splits are commonly used to balance certainty and flexibility. The fixed portion stabilises part of your repayment. The variable portion with offset allows you to park surplus cash and reduce interest without losing deductibility or flexibility. Each split is a separate sub-account. You can have different interest-only periods on each split, although most borrowers align them to simplify administration.

Lenders generally allow up to four splits per loan facility. Some charge a small annual fee per split. Others include splits at no additional cost. The feature is structural and should be considered at the time of application. Requesting a split after settlement usually requires a formal variation, which may attract a fee.

LVR, LMI, and Portfolio Lending

Lenders calculate LVR as the loan amount divided by the property value. Under APS 112, investment loans attract higher risk weights than owner-occupied loans at the same LVR, and interest-only investment loans attract higher risk weights than principal-and-interest investment loans at the same LVR. These risk weights affect the amount of capital the lender must hold against the loan, which flows through to pricing and policy.

For LVRs above 80 per cent, most lenders require LMI. The premium is calculated on a sliding scale and is paid by the borrower, either upfront or capitalised into the loan. LMI protects the lender, not the borrower. If you default, the lender recovers from the insurer and the insurer pursues you for the shortfall.

Legal professionals may have access to LMI waivers or reduced LMI on investment loans up to 90 per cent LVR through certain lenders. The waiver is not universal. It depends on your employer, your role, your income, and the lender's policy at the time of application. LMI waivers for lawyers are more commonly available on owner-occupied loans than on investment loans, but some lenders extend the benefit to investment lending for solicitors and barristers with stable employment.

When you hold multiple properties, lenders assess your serviceability across all debt. Your total debt-to-income ratio must remain below six times gross income to avoid the APRA DTI lending limit introduced in February 2026. The 20 per cent carve-out allows some lending above that threshold, but most lenders reserve it for strong applications. Investment loan refinancing can be used to consolidate debt, switch to interest-only repayment, or release equity, but it does not change your total debt or income position.

Rental Income Treatment in Serviceability

Lenders assess rental income at a percentage of the gross rent to account for vacancy, maintenance, and management costs. The percentage varies by lender and typically ranges from 70 per cent to 80 per cent of gross rent. Some lenders apply 100 per cent of rent if the lease is to a government tenant or a corporate tenant with a long-term lease.

For properties not yet tenanted, lenders require a rental appraisal from a licensed property manager. The appraisal must be dated within 90 days of the loan application. The lender applies the serviceability percentage to the appraised rent, not the actual rent, until a lease is in place.

If you are purchasing an investment property while retaining your current residence, lenders assess the full cost of both the new investment loan and your existing home loan. Rental income from the investment property offsets part of the servicing cost, but not all of it. The net effect is that your borrowing capacity for the investment loan is lower than your borrowing capacity would be for an owner-occupied loan of the same amount.

Construction, Renovation, and Loan Progression

Some lenders offer investment loan products for new builds, house-and-land packages, and renovations. These are structured as construction loans with progressive drawdowns. Interest is charged only on the amount drawn, not on the full approved limit. Once construction is complete and the property is valued at practical completion, the loan converts to a standard investment loan.

Progressive drawdown investment loans require the borrower to pay interest during construction, but there is no rental income until the property is tenanted. The cash flow gap during construction can be substantial. Lenders assess your ability to service the full loan amount at completion, but they do not always account for the interest cost during the construction period in the serviceability assessment. You need to hold sufficient cash reserves or offset balances to cover that period.

For legal professionals purchasing house-and-land packages or undertaking renovations on investment property, construction loans and standard investment loans can be structured together, but the features differ.

Rate Discounts, Relationship Pricing, and Loan Size

Lenders apply different rate discounts to investment loans depending on the loan amount, the LVR, the repayment type, and whether you hold other products with the lender. A $600,000 interest-only investment loan at 80 per cent LVR typically attracts a smaller discount than a $600,000 principal-and-interest owner-occupied loan at the same LVR.

Relationship pricing is less common on investment loans than on owner-occupied loans, but some lenders offer additional discounts if you hold a transaction account, offset account, or credit card with them. The discount is usually small, between 0.05 per cent and 0.15 per cent per annum, and may require a minimum monthly deposit to the transaction account.

Rate is one component of cost. Application fees, annual fees, discharge fees, and valuation fees vary more between lenders than rates do. A loan with a slightly higher rate and no ongoing fees can be cheaper over a three-year hold period than a loan with a lower rate and a $395 annual package fee. The calculation depends on the loan amount and the time you expect to hold the loan.

Working With a Broker on Investment Loan Structure

Brokers access loan products from multiple lenders and can structure investment loans to suit your cash flow, tax position, and portfolio strategy. The serviceability assessment, LVR calculation, and rate offered depend on your individual circumstances and the lender's policy at the time of application. Policies change. What was available six months ago may not be available now.

For investment loans for lawyers, brokers familiar with legal profession income structures, employment contracts, and LMI waiver eligibility can often secure better terms than a direct lender approach. The broker is paid by the lender, not by you, but the broker's commission does not affect the rate or features you are offered. The lender pays the same commission regardless of the rate you receive.

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