Variable Rate Investment Loans & What FIFO Drivers Need

A variable rate investment loan gives you access to features that fixed loans lock out.

The decision for most FIFO truck drivers comes down to whether you value flexibility over certainty. Variable rates move with the market, which means your repayments can shift without warning. In return, you get offset accounts, redraw access, and the ability to refinance or pay down the loan without break costs. For someone working a 2/1 or 3/1 roster with irregular cash flow, those features matter more than they would for a salaried worker in the city.

The tax treatment of investment property is changing in 2027. Properties bought after 12 May 2026 will have rental losses quarantined unless they qualify as a new build, which means you can't offset those losses against your FIFO wages. That shifts the focus from negative gearing to rental yield and cash flow, and it makes the flexibility of a variable rate more useful than it used to be.

Offset Accounts and How They Work with Investment Loans

An offset account is a transaction account linked to your loan. Every dollar in the offset reduces the balance on which interest is calculated.

If your loan balance is $400,000 and you hold $30,000 in the offset, you only pay interest on $370,000. The $30,000 stays liquid. You can access it anytime without applying for redraw or triggering a tax event. That matters for FIFO workers who might need cash between rosters for repairs, body corporate levies, or a second deposit if they're expanding their property portfolio.

Not all lenders offer offset on investment loans. Some cap the offset at 40 or 60 per cent of the loan balance. Others charge a higher interest rate or an annual package fee to include it. The rate difference is usually between 0.10 and 0.30 percentage points. Whether that cost is worth paying depends on how much cash you plan to hold in the account and for how long.

Interest Only Repayments and Cash Flow

Most variable rate investment loans let you switch to interest only repayments for a set period, usually up to five years at a time.

On a $400,000 loan at a variable rate, principal and interest repayments might sit around $2,400 per month. Interest only drops that to roughly $1,800. The difference is $600 a month that stays in your account or goes into the offset. If the property rents for $1,900 a month, interest only keeps you closer to neutral cash flow. Principal and interest puts you $500 short each month, which is harder to manage if you're also servicing a primary residence or saving for another deposit.

Interest only doesn't reduce the loan balance, so you're not building equity through repayments. You're relying on capital growth and rental income. With negative gearing quarantined for properties bought after May 2026, cash flow becomes the priority. Interest only loans for FIFO workers suit that strategy, but you need enough rental yield to cover the interest or you're funding the shortfall from wages every month.

Redraw Facilities and Tax Complications

A redraw facility lets you pull out extra repayments you've made above the minimum.

If your monthly repayment is $2,400 and you pay $3,000, the extra $600 goes into redraw. You can withdraw it later. Unlike an offset, redraw isn't a separate account. The money reduces your loan balance the moment it's paid, which lowers the interest you're charged. That sounds useful until you redraw it for a private expense.

Once you redraw funds and use them for something other than the investment property, the ATO treats the redrawn portion as a new loan for private purposes. Interest on that portion is no longer deductible. In our experience, this catches out plenty of investors who think redraw and offset are interchangeable. They're not. If you redraw $10,000 to fix your ute, the interest on that $10,000 stops being claimable. An offset avoids that problem because the funds never form part of the loan balance.

Rate Discounts and How Lenders Apply Them

Variable investment loan rates are published as a base rate minus a discount. The discount depends on your loan size, deposit, and whether you're taking a package that bundles offset and other features.

A lender might advertise a comparison rate of 6.40 per cent for investors, but the actual rate you're offered could be 6.60 or 6.20 depending on your loan to value ratio. A 20 per cent deposit usually gets you a better discount than a 10 per cent deposit. A loan above $500,000 might unlock another 0.10 to 0.15 percentage points. Some lenders reserve their sharpest discounts for refinancers or for borrowers moving multiple loans across.

The discount isn't locked. Lenders can widen or narrow it with 30 days' notice, which is why variable rates move even when the RBA doesn't. If you're juggling multiple investment properties, the rate difference between lenders can add up. That's when investment loan refinancing for FIFO workers becomes worth the effort.

Equity Release and Using It for a Second Property

Variable rate loans let you access equity without refinancing the entire loan.

Consider an investor who bought a property for $450,000 with a 15 per cent deposit two years ago. The loan balance is now $365,000 and the property is valued at $490,000. Usable equity is calculated at 80 per cent of the property value minus the current loan, which gives around $27,000. That's enough for a deposit on a second investment property without selling the first or saving from scratch.

Most lenders let you split the loan at that point. The original $365,000 stays on the existing rate and the additional $27,000 can be drawn on a separate split, sometimes at a different rate or loan type. The whole structure stays on a variable rate, so there are no break costs if you need to adjust it later. Equity release is one of the main reasons investors stick with variable loans even when fixed rates look cheaper on paper.

Switching Between Principal and Interest and Interest Only

Variable loans let you flip between repayment types without rewriting the loan.

If your tenant moves out and the vacancy rate runs longer than expected, you can switch from principal and interest to interest only and drop your monthly commitment by a few hundred dollars. Once the property is tenanted again, you can switch back. Most lenders allow one or two switches per year at no cost. Some charge a small fee or require a minimum notice period.

That flexibility is useful for FIFO workers who might lose a tenant between rosters and can't inspect or re-let the property quickly. It's also useful if your income drops due to a site shutdown or roster change. Fixed loans don't give you that option. You're locked into the repayment structure until the fixed term ends.

Portability and Moving the Loan to a Different Property

Some variable investment loans are portable, which means you can transfer the loan to a different security without discharging and rewriting it.

If you decide to sell the investment property and buy another one in a different state or suburb, portability lets you move the loan across. You avoid discharge fees, application fees, and in some cases valuation costs. Not all lenders offer this, and those that do usually require the new property to be of similar or higher value.

Portability matters less if you're holding long term, but it's useful if you're rotating through properties to upgrade your portfolio or shift to higher-yield locations. It also keeps your existing rate and loan terms intact, which can be valuable if rates have risen since you first borrowed.

What the 2027 Tax Changes Mean for Variable Loan Strategy

From 1 July 2027, rental losses on properties bought after 12 May 2026 can only be offset against other rental income or carried forward. You can't use them to reduce your taxable wages.

That changes the way you structure the loan. Negative gearing used to make higher interest repayments more palatable because the tax deduction softened the cost. Now, unless you're buying a qualifying new build, there's no wage offset. You need the property to generate enough rent to cover the interest, or you're funding the gap from after-tax income every month.

Variable loans suit that environment because you can use an offset to park your roster pay and reduce the interest cost without locking the cash away. You can switch to interest only to manage cash flow if the rent doesn't cover principal and interest. And if you decide the numbers don't work and you want to sell or refinance, there are no break costs. Fixed loans don't give you those options, and in a market where rental yield matters more than tax deductions, flexibility is worth more than rate certainty.

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