Fixed Rate Loans for Investors: Features and Trade-offs

A fixed rate loan locks your interest rate for a set period, usually between one and five years.

For investors, that certainty can be valuable when planning cash flow or managing multiple properties. But the features that come with a fixed rate loan are quite different from what you get on a variable rate product, and those differences affect how you manage the loan day to day.

What Fixed Rate Features Look Like in Practice

Fixed rate loans typically don't include a full offset account. Some lenders offer a partial offset or a redraw facility, but many fixed products restrict these features entirely during the lock-in period.

Consider an investor who buys a two-bedroom unit in Clayton as their first investment property. They fix the rate for three years to lock in their repayments while they're still building a financial buffer. The lender allows a redraw facility, but it caps extra repayments at $10,000 per year without penalty. If they receive a bonus from work and want to pay down more than that, they'll face break costs or need to hold the cash elsewhere. That limitation changes how they manage surplus income compared to a variable loan with a linked offset.

The trade-off is predictability. If rates rise during the fixed period, the investor's repayments stay the same. If rates fall, they're locked in at the higher rate unless they refinance and pay break costs.

Limited Extra Repayments and Why That Matters for Tax

Most fixed rate loans allow some extra repayments, but the cap is usually between $10,000 and $30,000 per year depending on the lender.

For an investment loan, paying down the principal too quickly can actually reduce the amount of interest you can claim as a tax deduction. Some investors prefer the discipline of a fixed rate with limited repayments because it keeps the deductible debt higher while they focus on building equity in their owner-occupied property instead. Others find the restriction frustrating, especially if they're in a position to pay more than the cap allows.

If you're likely to receive irregular income such as bonuses, commissions, or rental income from other properties, the repayment cap on a fixed loan can work against you. You'll either need to hold that surplus in a savings account earning taxable interest, or accept the break costs if you want to pay it into the loan.

Break Costs and When They Apply

Break costs occur when you exit a fixed rate loan early, either by refinancing, selling the property, or paying out the loan in full. The lender calculates the cost based on the difference between your fixed rate and the current wholesale rate for the remaining lock-in period.

In a falling rate environment, break costs can be significant. If you fixed at 6% and rates have since dropped, the lender will charge you the difference between what they expected to earn from your loan and what they can now earn by lending that money elsewhere. The calculation is complex, but the result is that you could pay thousands of dollars to exit early.

Some lenders allow portability, which means you can transfer the fixed rate loan to a new property if you sell and buy within a certain timeframe. Not all lenders offer this, and the conditions vary. If you're planning to sell the investment property within the fixed period, portability can save you from break costs, but it's not a feature you should assume is available.

How a Split Loan Changes the Equation

A split loan divides your borrowing between fixed and variable portions, often 50/50 or 70/30 depending on your preference.

This structure gives you some rate certainty on the fixed portion while keeping access to offset and unlimited extra repayments on the variable portion. For investors, it's a way to hedge against rate movements without losing all flexibility. You can direct surplus cash into the offset linked to the variable portion, reducing interest on that part of the loan while the fixed portion remains predictable.

The downside is that you're managing two loan accounts instead of one, and some lenders charge separate fees for each split. The variable portion will also move with rate changes, so you're only partially protected if rates rise.

Switching Between Fixed and Variable During Ownership

You can refinance from fixed to variable or vice versa at any point, but doing so during a fixed period will trigger break costs.

We regularly see investors who fixed their rate expecting stability, then found their circumstances changed. They might want to access equity for a second purchase, or they're selling sooner than planned, or rates have dropped and they want to refinance to a lower rate. In each case, the decision comes down to whether the benefit of switching outweighs the break costs.

If you're within six months of your fixed period expiring, most lenders will waive or reduce break costs. Outside that window, you'll need to request a break cost estimate from your lender and compare it against the benefit of refinancing. The calculation isn't always obvious, which is where working with a broker helps.

Choosing Fixed Rate Features That Suit Your Investment Strategy

The right fixed rate structure depends on how you plan to manage the property and whether you need access to equity in the short term.

If you're holding the property long term and don't expect to need extra repayment flexibility, a fixed rate with a basic redraw facility might suit you. If you're planning to expand your property portfolio within the next few years and will need to access equity, a variable rate or split loan keeps your options open without the risk of break costs.

Some investors fix the rate on their investment loan and keep their owner-occupied loan variable, or the other way around depending on their tax position and cash flow. There's no single approach that works for everyone, but understanding what each feature does and what it costs you in flexibility makes the decision clearer.

Call one of our team or book an appointment at a time that works for you. We'll walk through your investment goals, your cash flow, and the trade-offs between fixed and variable features so you can structure the loan in a way that fits your situation.

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