Avoid These 3 Mistakes with Investment Loan Fixed Rates

Fixed Rates Lock Out Your Offset Account

A fixed rate investment loan does not allow you to use an offset account during the fixed period. The account might still exist, but any money sitting in it earns no benefit against your loan interest.

Consider an investor who refinances a Shepparton rental property onto a three-year fixed rate at 5.89 per cent to lock in certainty. They keep $25,000 in an offset account assuming it will reduce their interest charges. Over three years, that idle balance costs them around $4,400 in interest they expected to save but didn't. The offset sat there doing nothing because fixed rate products don't calculate interest daily against an offset balance like variable rate loans do.

If you want an offset account to reduce taxable interest and improve cash flow, you need a variable rate loan or a split loan structure where only the variable portion benefits from the offset. Holding surplus cash in an offset attached to a fixed rate portion of your loan delivers no financial advantage and ties up capital that could be working harder elsewhere.

Interest-Only Fixed Loans Cost More in Total Interest

An interest-only period on a fixed rate investment loan reduces your repayment today but increases your total borrowing cost over the life of the loan. During the interest-only period, your loan balance does not reduce, so you pay interest on the full amount borrowed for longer.

In our experience, investors choose interest-only terms to maximise cash flow and tax deductions in the early years of ownership, particularly when rental income is below holding costs. That approach suits investors building a portfolio or managing multiple properties at once. The trade-off is higher total interest paid across the loan term compared to a principal-and-interest structure from day one.

If you fix an interest-only loan and later want to switch to principal and interest or exit the fixed term early, break costs apply. Those costs can run into thousands of dollars depending on how far rates have moved since you locked in. Lenders calculate break costs based on the difference between your fixed rate and the current wholesale rate for the remaining fixed period, multiplied by your outstanding loan balance.

You Can Split Your Loan Between Fixed and Variable

A split loan structure allows you to fix a portion of your investment loan while keeping the remainder on a variable rate with an offset account attached. Most lenders let you split your loan into two or more portions, and you control the percentage allocated to each.

A Shepparton investor with a $450,000 loan might fix $300,000 at a rate that provides repayment certainty for three years, and leave $150,000 on a variable rate with a $30,000 offset account linked to the variable portion. The variable portion benefits from the offset, which reduces the taxable interest on that $150,000, while the fixed portion locks in a known repayment amount for budgeting. This structure also preserves flexibility if you want to make extra repayments or access redraw on the variable portion without triggering break costs.

The split structure does not eliminate fixed rate break costs entirely. If you sell the property or refinance before the fixed term ends, you still face break costs on the fixed portion. But it does reduce your exposure compared to fixing the entire loan amount, and it keeps an offset account active where it can deliver value.

Shepparton Rental Vacancy Affects Your Serviceability More Than Your Rate Type

Lenders assess your capacity to service an investment loan based on the rental income the property generates, your other income, and your existing debts. When rental vacancy periods extend beyond a few weeks, your serviceability calculation changes, particularly if you hold multiple properties or are applying for a new loan while holding an existing investment property.

Shepparton's rental market has tightened in recent years, but vacancy can still stretch out for properties that are priced above local comparables or located further from the CBD and hospital precinct. If you are carrying a vacancy at the time you apply to refinance or purchase another investment property, lenders may discount the rental income entirely or apply a higher vacancy rate assumption when calculating your borrowing capacity. That can reduce the loan amount you qualify for or require you to demonstrate higher savings or income to offset the shortfall.

Whether you choose a fixed or variable rate on your investment loan, the interest rate type does not change how lenders assess rental income. But a fixed rate does change your repayment amount for the fixed period, which affects your debt servicing ratio. If you fix at a lower rate than the current variable rate, your repayments drop and your serviceability improves. If you fix at a higher rate or if variable rates fall after you lock in, your repayments remain higher than they need to be, which can limit your ability to borrow further or refinance without triggering break costs.

You Cannot Access Equity Without Breaking Your Fixed Rate

If your property increases in value and you want to access equity to fund another purchase, renovate the existing property, or consolidate debt, you need to refinance or apply for a top-up loan. When your loan is fixed, any increase to the loan amount or change to the loan structure triggers break costs on the fixed portion.

Property values in Shepparton have moved over recent years, and investors who bought earlier may now hold significant equity. Accessing that equity while on a fixed rate requires either waiting until the fixed term expires or paying the break costs to refinance now. The decision depends on the size of the break cost relative to the opportunity you are accessing. If the break cost is $8,000 but accessing equity now lets you secure another property that generates positive cash flow or capital growth, the cost may be justified. If the opportunity can wait, you avoid the cost by holding until the fixed term ends.

Split loan structures reduce this problem by keeping a variable portion available for top-ups or equity release without touching the fixed portion. That gives you access to growing equity without paying break costs, provided the variable portion holds enough available equity to support the amount you need.

Fixed Rate Investment Loans Still Require a Full Serviceability Assessment

Locking in a fixed rate does not reduce the lender's serviceability assessment or change the deposit required for an investment property. Lenders still assess your capacity to service the loan at a rate that is at least 3.0 percentage points above the loan product rate, regardless of whether that product rate is fixed or variable.

If you apply for a fixed rate investment loan at 5.89 per cent, the lender assesses your capacity to repay at 8.89 per cent or higher. That buffer is set by the Australian Prudential Regulation Authority and applies to all new home loans, including investment loans. The buffer protects both you and the lender against future rate rises, but it also means you may qualify for a smaller loan amount than you expect based on the fixed rate alone.

Deposit requirements for investment property loans remain higher than for owner-occupied loans. Most lenders require at least a 10 per cent deposit plus costs, and some require 20 per cent to avoid Lenders Mortgage Insurance. Fixing your rate does not change those thresholds, and it does not exempt you from providing evidence of genuine savings, rental income, or employment stability. The rate type you choose affects your repayment and your flexibility, but it does not change the lender's credit assessment.

If you are weighing up fixed versus variable or considering a split structure for an investment property in Shepparton or the wider Goulburn Valley, call one of our team or book an appointment at a time that works for you. We work with lenders across Australia and can structure your investment loan to suit your property strategy and cash flow needs without locking you into terms that limit your options down the track.

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