If your home loan rate has crept up over the years while new customers seem to get offered something better, you may be paying what's known as a loyalty tax. It's not an official charge on your statement, it's the quiet gap between the rate your bank offers new borrowers and the rate they're happy to leave you on. In Australia, this gap costs homeowners real money every year, and most don't know it's happening until someone points it out.

What is the loyalty tax on home loans?

The loyalty tax is the difference between the interest rate your lender offers to attract new customers and the rate they leave existing customers paying. Banks compete hard for new business, so they sharpen their pencils on rates for people walking in the door. Customers who have been with them for a few years, making repayments without complaint, often don't get the same attention.

It's not illegal or hidden. It's simply how the pricing works unless you ask for better, or look elsewhere.

Why banks price loyal customers higher

Banks make their profit on the back book, the loans already on their books, while using sharp rates on the front book to win new market share. Once you've settled, there's little commercial reason for your bank to proactively offer you a better deal. They're relying on the fact that most people don't get around to checking.

It also helps that switching loans feels like a hassle. Banks know that inertia, not satisfaction, is often what keeps a customer in place.

How to tell if you're paying a loyalty tax

A few signs are worth checking:

  • Your fixed rate period ended and you rolled onto a revert rate without comparing it to anything
  • You haven't reviewed your rate in the last 12 to 18 months
  • You've never called your bank to ask for a better deal
  • You don't know what rate new customers on your lender's website are being offered right now

If any of that sounds familiar, there's a good chance you're not on the best deal available to you.

What the loyalty tax could be costing you

The numbers add up faster than most people expect. On a $500,000 loan, even a rate gap of around half a percentage point can mean thousands of dollars in extra interest over a single year, and tens of thousands over the remaining life of the loan. The bigger your loan and the longer you leave it, the more it costs you in the background, quietly, without ever showing up as a single noticeable hit.

That's the part that catches people out. It's not one big expense. It's a slow erosion that's easy to miss until you actually sit down and compare.

How to fix it: review, negotiate, or refinance

You generally have three options once you suspect you're paying a loyalty tax.

Review your current rate. Find out exactly what you're paying now and compare it to current market rates for your loan size and equity position.

Negotiate with your existing lender. Sometimes a phone call referencing a competitor's offer is enough to get your rate reduced, particularly if your repayment history is clean.

Refinance to a better deal. If your current lender won't move, switching to a new lender that wants your business can often deliver a meaningfully lower rate, plus the chance to review whether your loan structure still suits you.

A broker can run all three options side by side, so you're comparing real numbers instead of guessing.

Common worries about switching

Most hesitation comes down to a few specific concerns, and they're all worth addressing honestly.

Will I lose my offset account? Not necessarily. Many lenders offer offset accounts too, and a broker will check this before recommending anything.

Will switching hurt my credit score? A loan application does involve a credit check, but a single, considered application has a minor and temporary impact, especially compared to years of overpaying.

Are there hidden fees? There can be discharge or establishment costs. A proper comparison weighs these against the savings, so you know the real picture before you decide anything.

Get a calm, honest second opinion

You don't need to overhaul your finances to deal with the loyalty tax. You just need someone to check your numbers and tell you honestly where you stand, even if that means staying put is the right call.

At Swish Finance Brokers, we review your current rate against the market, walk you through your options in plain English, and only recommend switching if it genuinely puts you ahead. Book a free rate review with our team and find out if you're paying more than you need to.