Refinance Cashback Offers in Australia: Is the Loyalty Tax Costing You Thousands?
Lenders are throwing cash at new customers to win their business, while existing borrowers quietly pay more for the same loan. Is a refinance cashback offer actually worth taking, or is it a distraction from the bigger problem?
What Is the Loyalty Tax?
The loyalty tax is the gap between the rate a bank offers brand new customers and the rate it quietly leaves existing borrowers paying. It is not written into any contract. It builds up over time as lenders roll out sharper rates to attract new business while your rate sits still.
Right now that gap typically runs between 0.3% and 0.8%. On a $700,000 loan, that is somewhere between $2,100 and $5,600 a year in interest you do not need to be paying. Banks are betting that most people will not bother checking, let alone switching.
What Cashback Offers Look Like Right Now
To make switching even more appealing, most major and mid-size lenders are running cashback offers for refinancers. As of August 2026, cashback deals in the Australian market typically range from $1,000 to $4,000, with IMB Bank currently offering up to $4,000 for loans of $750,000 or more.
Most offers come with conditions:
A minimum loan size, often around $250,000
A maximum loan-to-value ratio, usually 80%
A requirement to draw down the full new loan within a set window, often 90 to 120 days
The refinancing market backs up how many people are chasing these deals. In 2025, 640,137 home loans were refinanced or renegotiated across Australia, a 20% jump on the year before. In 2026 that pace has continued, with a record $42.9 billion switched externally to new lenders so far, and more than 64% of refinancers moving to a different bank entirely rather than renegotiating with their current one.
The Catch: Clawback Clauses and Switching Costs
Cashback is not free money, and it is not the full picture either.
Most lenders attach a clawback clause. If you refinance again within 24 to 36 months of taking the cashback, the bank can claw some or all of it back. If there is any chance you will want to switch again soon, that cashback can end up costing you.
There are also real costs on the way out and the way in:
Discharge fees from your current lender
Government mortgage registration fees
Sometimes a break cost, if you are on a fixed rate
Together these usually add up to somewhere around $1,000. That is not enough to wipe out a $4,000 cashback offer, but it is enough that the math needs doing properly rather than assumed.
One useful bit of certainty: for owner-occupiers, the ATO generally does not treat a home loan cashback as taxable income, so what you are offered is what you keep.
Cashback vs a Genuinely Lower Rate
Here is where a lot of borrowers get the decision backwards. A $3,000 cashback feels like a big win in the moment, but a 0.3% rate difference on a $700,000 loan is worth roughly $2,100 every single year for as long as you hold the loan. Over five years, that is a very different number to a one off payment.
The smart approach is to treat cashback as a nice bonus on top of a genuinely competitive rate, not as the main reason to switch. If a lender is offering a big cashback but a mediocre ongoing rate, you may be trading a short term win for a long term loss. If you are not sure how your current rate compares, this is worth checking properly rather than guessing. We have written before about how to negotiate a lower interest rate on your home loan, which is always worth trying with your current lender before you commit to the cost and hassle of switching elsewhere.
Is It Worth Switching?
For a lot of borrowers, yes. If your current rate sits well above what is on offer elsewhere, and you are not planning to refinance again in the next couple of years, taking the loyalty tax hit for another year rarely makes sense. Combining a better rate with a cashback offer can genuinely be, as some lenders describe it, a double win.
But it is not automatic. If you are close to paying off your loan, if you are on a fixed rate with a hefty break cost, or if your circumstances might change soon (a new job, a growing family, a possible sale), the calculation changes. We have covered the broader timing question in our guide on when you should refinance your home loan, which is worth reading alongside this one before you make a call.
How to Compare Offers Properly
Before you sign anything, work through this:
Compare the actual ongoing rate, not just the headline cashback figure
Check the loan-to-value ratio and minimum loan size conditions apply to you
Ask about the clawback period and what triggers it
Add up discharge fees, registration fees, and any break costs
Work out the true break-even point in months, not just dollars
A good mortgage broker can run these numbers for you in minutes rather than hours, and can also tell you honestly when staying put is the better move.
Ready to Stop Paying the Loyalty Tax?
If you want to know whether a cashback offer stacks up for your situation, or simply whether you are paying more than you should be, get in touch. We will run the numbers with you, no obligation.
And for what it is worth, a portion of every deal we settle goes to the Australian Wildlife Conservancy, helping protect the native species and habitats that make this country worth calling home.