If you are shopping for a home loan in Australia, chances are you want two things at the same time: the certainty of a fixed interest rate and the interest savings of an offset account. It is a completely reasonable thing to want. The problem is that most lenders in Australia will not give you both. This guide explains why that is, which lenders are the exception, and how to structure your loan so you can still benefit from an offset account even if you are fixing your rate.
What Is an Offset Account and How Does It Work?
An offset account is a transaction account that is linked directly to your home loan. The balance sitting in that account is offset against your loan balance when your lender calculates how much interest you owe each month.
Here is how it works in practice. Say you have a $600,000 home loan and you keep $50,000 in your offset account. Instead of being charged interest on the full $600,000, your lender calculates interest on $550,000. That $50,000 is effectively reducing your loan balance for interest purposes, even though the money is still sitting in your account and you can spend it at any time.
Over the life of a 30-year loan, this can make an enormous difference. Depending on your interest rate and how much you keep in the offset, you could save tens of thousands of dollars in interest and shave years off your loan term. That is why offset accounts are one of the most valuable features on any home loan.
Most lenders offer a full offset account on variable rate loans. A full offset means every dollar in the account reduces your interest-bearing balance on a one-to-one basis. Some older loan products include a partial offset, where only a percentage of the account balance counts. These days, most lenders only offer full offset, so partial offset products are increasingly rare.
The offset account itself works just like a regular bank account. You can have your salary deposited into it, use it for everyday spending, and set up direct debits. The longer your money sits there throughout each month, the more interest you save.
Why Most Fixed Rate Loans Do Not Include an Offset Account
This is where things get a bit more technical, but it is worth understanding.
When you fix your interest rate, your lender locks in a rate for a set period, typically one to five years. To fund this commitment, the lender goes to the wholesale money market and borrows funds at a fixed rate that matches your term. The lender then knows exactly what it will cost them to lend you that money for the fixed period, and they build their margin in on top.
The offset account is the problem. If your lender allows an offset account on a fixed rate loan, the amount of interest you actually pay depends on how much money you keep in that account. If you have $200,000 sitting in your offset on a $700,000 loan, you are only paying interest on $500,000, which is dramatically less than the lender expected when they priced the loan. That unpredictability makes it very difficult for the lender to accurately hedge their cost of funds, which affects their net interest margin.
So most lenders take the simple route: they do not allow an offset account on fixed rate loans at all.
This is not a conspiracy against borrowers. It is genuinely a consequence of how fixed rate funding works. The lender has locked in their funding cost based on the assumption that you will be paying interest on the full loan balance. An offset account undermines that assumption.
That said, there are exceptions. A small number of lenders, mostly non-bank lenders and some second-tier banks, do offer fixed rate home loans with offset accounts attached. They typically price these products at a slight premium above their standard fixed rate to compensate for the uncertainty. It is worth asking a broker to check the current market, because lender product ranges change regularly and what is available today may be different from six months ago.
What Can You Use Instead of an Offset Account on a Fixed Rate Loan?
If your lender does not offer a fixed rate loan with an offset, you have a few solid alternatives worth considering.
Redraw facility
Most fixed rate home loans in Australia include a redraw facility. This allows you to make extra repayments above your required minimum and then access those extra funds later if you need them.
For example, if your minimum monthly repayment is $3,500 but you pay $4,500 each month, that extra $1,000 goes into your redraw balance. Those extra repayments do reduce your loan balance, which means they do reduce the interest you are charged. If you need the money back later, say for a renovation or an emergency, you can redraw it.
However, a redraw facility is not quite the same as an offset account. A few important differences to keep in mind:
- Most fixed rate loans cap the amount of extra repayments you can make each year without penalty, typically between $10,000 and $20,000 per year. Beyond that cap, break costs may apply.
- Unlike an offset account, the money you put into redraw is technically held by the bank as part of your loan. This can have minor implications for tax and asset protection in some circumstances.
- Some lenders charge a fee to redraw funds, though this is becoming less common.
- You cannot use redraw like a transaction account. It is not a day-to-day spending account.
Despite these limitations, a redraw facility is still a useful tool for reducing your interest during a fixed period. It just requires a bit more planning than an offset account.
Split loan structure
This is the most popular and often most effective solution for borrowers who want both rate certainty and offset benefits. A split loan divides your mortgage into two portions: one fixed and one variable. You get the certainty of a fixed rate on most of your loan, and you attach an offset account to the variable portion.
This deserves its own section, which follows below.
High-interest savings account
If neither of the above options fits your situation, consider parking your savings in a high-yield savings account while your loan is fixed. This will not directly reduce your mortgage interest, but at least your money is earning something rather than sitting idle. The catch is that you will be taxed on the savings interest you earn, whereas the benefit of an offset account is not taxable income. Still, for some borrowers it is better than leaving cash doing nothing.
The Split Loan Strategy in Detail
The split loan structure is worth understanding properly, because it is the strategy most mortgage brokers will consider for borrowers who want both certainty and offset benefits.
Here is how it works with a real example.
Imagine you have an $800,000 home loan. You are nervous about interest rates rising further and you want to lock in some certainty. But you also have $80,000 in savings and you would like to put those savings to work reducing your interest.
A broker might recommend splitting the loan as follows:
- $600,000 fixed at the current fixed rate for two years. This gives you payment certainty on 75 per cent of your debt. You know exactly what that portion will cost you each month for the next two years, regardless of what happens to interest rates.
- $200,000 variable with a 100 per cent offset account. You keep your $80,000 savings in the offset account attached to this portion. Instead of paying interest on $200,000, you are only paying interest on $120,000.
The result: you have locked in certainty on the majority of your loan, and you are still saving interest on $80,000 of the variable portion. You are not fully exposed to rate rises on $800,000 of debt, but you are not fully locked out of offset benefits either.
The variable portion also gives you more flexibility. You can make unlimited extra repayments on the variable part without penalty, you are not subject to break costs if your circumstances change on that portion, and if variable rates drop below your fixed rate you benefit on that portion automatically.
The exact split ratio depends on your individual situation: how much you have in savings, how risk-averse you are about rate movements, and what fixed rate terms are available right now. This is the kind of modelling a good mortgage broker will do for you. For more on how fixed and variable rates stack up, read our guide on fixed rate vs variable rate home loans.
A bank will rarely suggest a split loan structure unprompted. They would rather sell you one clean product. A broker will model the real numbers and show you which structure leaves you paying less interest over your chosen period.
Which Lenders Offer Fixed Rate Loans with Offset Accounts?
Product ranges change constantly, so rather than naming specific lenders or products that may have changed by the time you read this, it is more useful to understand the landscape.
A small number of lenders in Australia, typically non-bank lenders and some smaller banks, do offer fixed rate home loans that include an offset account. These products are specifically designed for borrowers who do not want to split their loan but still want offset functionality on their fixed rate debt.
The trade-off is usually rate. Expect to pay a premium of anywhere from 0.10 to 0.30 percentage points above the lender's standard fixed rate. Whether that premium is worth it comes down to a straightforward calculation: how much do you plan to keep in the offset on average, how does that interest saving compare to the extra cost of the rate premium, and how long are you fixing for?
A mortgage broker can run this calculation for you quickly. They will look at your expected average offset balance, calculate the interest saving at the standard fixed rate in a split loan versus the premium fixed rate with a built-in offset, and tell you which option leaves you further ahead.
Talk to RyRo about your loan structure and we will do exactly that for your specific numbers.
Is a Fixed Rate with Offset Right for You?
Not every borrower needs this combination. Here are the key questions to think through before you decide.
How much do you plan to keep in the offset? If you are going to keep $20,000 in an offset account on a $700,000 loan, the interest saving is relatively modest. If the lender charges a rate premium for the offset feature, you may not break even on that premium. On the other hand, if you have $150,000 in savings and plan to keep most of it in the offset, the benefit is substantial and well worth investigating.
Are you fixing your rate for certainty, or because you think rates will rise? This matters because it affects how long you plan to fix for and how much weight you place on the variable portion of a split loan. If you genuinely want payment certainty above all else, a longer fixed term makes sense. If you are more flexible, a shorter fix combined with a variable component may work better.
How long are you fixing for? The offset benefit compounds over time. A two-year fix with an offset saves you less than a five-year fix with an offset, assuming the same average balance. But longer fixed terms also tend to carry higher rates, so the calculation gets more nuanced.
Would a split loan solve the problem more elegantly? For many borrowers, splitting the loan is simpler and more cost-effective than paying a rate premium for an offset-enabled fixed product. It also gives you variable rate exposure on part of your debt, which can work in your favour if rates fall during your fixed period.
For a full overview of your home loan options, visit our home loans page.
How a Mortgage Broker Finds the Right Structure
This is one of those situations where going directly to a bank can genuinely cost you money, not because banks are dishonest, but because a bank's loan officer is only going to show you what that bank sells.
They are not going to say: "actually, our fixed rate with offset is overpriced relative to splitting your loan across two of our own products." They will present what is available in their range, and you will choose from that menu without ever knowing what else was possible.
A mortgage broker has access to 50 or more lenders. They can model the real numbers across the full market, not just one lender's product range. They look at your expected offset balance, your appetite for rate certainty, your income and repayment capacity, and the loan structures available right now. Then they recommend the structure that actually saves you the most money over your chosen timeframe.
This is not a minor difference. On a large loan, getting the structure wrong can cost you thousands of dollars over the life of the loan in unnecessary interest. Getting it right, by finding the right lender and the right split, can save you just as much.
RyRo Loan Centre does this for free. There is no cost to you as a borrower and no obligation to proceed after the initial conversation. Book a free strategy call and we will map out the right loan structure for your situation.
FAQ
Can I have an offset account on a fixed rate home loan in Australia?
In most cases, no. The majority of lenders in Australia do not offer offset accounts on fixed rate home loans. A small number of non-bank lenders and second-tier banks do offer this combination, usually at a rate premium. A mortgage broker can check which lenders currently offer it and whether the numbers make sense for your balance.
What is the difference between an offset account and a redraw facility?
An offset account is a separate transaction account linked to your loan, where the balance reduces the interest-bearing loan amount in real time. A redraw facility allows you to access extra repayments you have already made into the loan. Both reduce the interest you pay, but an offset account is more flexible because your money is always accessible like a regular bank account, whereas redraw funds are technically part of the loan and may take time to access.
Does money in an offset account reduce my interest on a fixed rate loan?
Only if your lender specifically offers an offset account on fixed rate loans. If your lender does not support this combination, money sitting in an offset account will have no effect on your fixed rate loan interest. The two products are simply not connected in that scenario, so it is important to confirm the structure with your lender or broker before assuming it works.
What is a split home loan and how does it work?
A split home loan divides your mortgage into two separate portions: one fixed and one variable. You receive rate certainty on the fixed portion and the flexibility of a variable loan, including the ability to attach an offset account, on the other portion. You choose what percentage of your total loan goes into each part based on your savings, your risk tolerance, and your financial goals.
Will I pay a higher rate to get an offset account on a fixed loan?
Most likely, yes. Lenders that offer offset accounts on fixed rate loans typically charge a rate premium of between 0.10 and 0.30 percentage points above their standard fixed rate. Whether this premium is worth paying depends on how much you plan to keep in the offset and whether the interest saving over your fixed term exceeds the cost of the higher rate. A broker can run this comparison for you in a few minutes.
Should I choose a fixed rate or variable rate if I want an offset account?
If having a full offset account is your top priority, a variable rate loan is the most straightforward choice, as offset accounts are widely available across variable rate products. If you also want rate certainty, a split loan is often the best compromise: fix the majority of your loan for payment certainty and attach a full offset account to the variable portion. This is the structure most brokers will recommend for borrowers who want both.
The offset and fixed rate combination is not impossible. It just requires knowing which lenders currently offer it, whether the rate premium makes financial sense based on your savings balance, or whether a split loan structure achieves the same outcome more cost-effectively. That is exactly what a mortgage broker is for. Get in touch with RyRo and we will run the numbers for your specific loan.
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