How to avoid break costs on investment loans

A fixed rate investment loan locks in your repayments for a set period, usually one to five years.

That certainty matters when you're managing rental income against a mortgage, particularly if you're working rotating shifts and want predictable cashflow. But if you need to sell the property, refinance to release equity, or pay down the loan before the fixed term ends, your lender may charge break costs to recover the difference between the rate you locked in and the rate they can now lend that money at.

How Fixed Rate Break Costs Are Calculated

Break costs reflect the lender's wholesale funding loss when you exit a fixed rate contract early. The calculation compares the fixed rate on your loan to the current swap rate for the remaining term. If market rates have fallen since you fixed, the lender loses income because they can only re-lend that capital at a lower rate. You pay the difference.

Consider a registered nurse who fixed a $450,000 investment loan at 5.8 per cent for three years. Eighteen months later, she accepts a contract role interstate and needs to sell the property. Market swap rates have dropped to 4.9 per cent. The lender calculates break costs on the remaining eighteen months at roughly 0.9 per cent, which can amount to several thousand dollars depending on the loan balance and term remaining. The exact figure depends on the lender's wholesale funding cost at the time you break the contract, not just the advertised rate difference.

Some lenders also include an administration fee on top of the economic cost. Others waive break costs if you're refinancing the same loan amount to another product with the same lender, but that won't help if you're selling or switching to a lender with lower investor interest rates.

When Break Costs Are Waived or Reduced

If market rates have risen since you locked in your fixed rate, break costs are usually zero. The lender can re-lend the capital at a higher rate than your contract, so there's no economic loss to recover.

A midwife in our experience refinanced her investment loan after fixed rates had climbed. She had locked in at 4.2 per cent two years earlier, and by the time she wanted to shift lenders to access equity for a second property, the equivalent swap rate was sitting above 5.5 per cent. The lender confirmed no break costs applied because the economic position favoured them. She moved across without penalty and used the released equity as part of her deposit on the next purchase.

Porting your loan to a new property with the same lender may also avoid break costs, but not all lenders offer that option and it usually requires the new loan amount to match or exceed the existing balance. The policy varies between lenders, so confirm the terms before you list a property for sale.

Split Rate Loans and How They Limit Exposure

A split rate structure divides your loan into fixed and variable portions. You might fix 60 per cent and leave 40 per cent variable, or split it evenly. The variable portion gives you flexibility to make extra repayments, redraw funds, or pay down the loan without triggering break costs on that part of the balance.

If you need to sell or refinance before the fixed term ends, break costs only apply to the fixed portion. That reduces your exposure compared to fixing the entire loan amount. The variable portion also lets you take advantage of offset accounts, which aren't available on most fixed rate products. Rental income sitting in an offset reduces the interest charged on the variable portion while keeping the funds accessible for property maintenance, vacancy periods, or other investment expenses.

You can adjust the split ratio based on your appetite for rate certainty versus flexibility. A higher fixed portion suits investors prioritising stable repayments and tax deductions tied to predictable interest costs. A higher variable portion suits those who expect to access equity, sell within a few years, or pay down the loan ahead of schedule.

Interest-Only Fixed Periods and What Happens at Expiry

Many investment loans are structured as interest-only during the fixed period, then revert to principal and interest once the fixed term ends. That reversion can increase your repayment substantially, particularly if the loan also rolls onto a higher variable rate.

An enrolled nurse we worked with had a $380,000 interest-only investment loan fixed at 5.4 per cent. When the three-year term expired, the loan reverted to principal and interest on a variable rate. Her monthly repayment jumped by more than $1,000. She hadn't factored that increase into her budget and the rental income no longer covered the new repayment amount, particularly during a brief vacancy between tenants. She refinanced to another interest-only period with a different lender to bring the repayment back in line with the rent, but the process required a full application and valuation because she was outside the fixed rate expiry window her original lender offered.

Planning around the expiry date is part of managing an investment loan. Most lenders will contact you 30 to 90 days before the fixed term ends, but that's often too late to compare products, obtain valuations, or structure a refinance if you want to lock in another fixed period or move to a lender offering lower ongoing rates. Start reviewing your options at least four months out.

Break Costs and Legislative Changes From 1 July 2027

From 1 July 2027, net rental losses on residential investment properties purchased after 12 May 2026 will be quarantined under new tax legislation. Those losses can only be offset against other residential rental income or carried forward, not against your salary. Properties bought before that date remain under the existing negative gearing rules until sold.

If you're holding an investment property purchased after May 2026 and you're relying on negatively geared tax deductions to manage cashflow, breaking a fixed rate loan early to refinance or sell may become more common as investors reassess their portfolio structure. Break costs in that scenario are a direct holding cost, but they aren't deductible against other income under the quarantining rules. They form part of the cost base for capital gains tax purposes when you eventually sell, but that doesn't reduce the immediate cash impact.

The change also affects how you might structure a new investment loan. Fixing the rate for a shorter term, such as one or two years instead of three to five, reduces your exposure to break costs if you decide to exit the investment earlier than planned. It also means you'll face rate resets more frequently, so the decision depends on your outlook for rate movements and your tolerance for repayment variability.

Partial Prepayments During a Fixed Period

Most fixed rate investment loans allow you to prepay up to $10,000 or $20,000 per year without triggering break costs. The threshold depends on the lender and the product. Amounts above that limit are treated as a partial break and the lender will calculate the economic cost on the excess.

If you receive a bonus, overtime loading, or agency shift payments and want to reduce the loan balance, check your annual prepayment limit before making the payment. Some lenders reset the limit each calendar year, others reset it on the anniversary of settlement. Exceeding the limit by even a small amount can trigger a disproportionate break cost if market rates have fallen since you fixed.

Where you're planning to make lump sum payments regularly, a split loan structure or a fully variable rate may serve you in a more practical way. The tax benefit of negative gearing applies to the interest you actually pay, so paying down the loan faster reduces your deductions. That might suit your overall wealth strategy, but it's worth modelling the trade-off between loan reduction, tax outcome, and opportunity cost before you commit capital to a fixed rate product you can't access again without penalty.

Call one of our team or book an appointment at a time that works for you. We'll compare the fixed, variable, and split rate options across the lenders we work with and show you the prepayment limits, break cost formulas, and reversion rates that apply to each product so you can lock in a rate without locking yourself into a structure that doesn't suit your next move.

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