What is the home loan loyalty tax?

The loyalty tax is the gap between the interest rates lenders offer new customers and the higher rates paid by existing customers on comparable loans. Reserve Bank of Australia analysis has repeatedly found older loans carry higher average rates than new ones.

How do I know if I'm paying a loyalty tax?

Compare your current rate against advertised new-customer rates for a similar loan and equity level. If your loan is more than a couple of years old and has never been repriced, a gap is likely.

Can I just ask my lender for a lower rate?

You can, and it sometimes works — but lenders typically sharpen pricing most when a genuine refinance is on the table. Knowing your refinance alternative first gives the request teeth.

Knowledge base / Rates

Loyalty tax: why long-term customers often pay more

Secure Finance · Rates · Updated July 2026

The "loyalty tax" is the persistent gap between the rates lenders offer new customers and the higher rates existing customers keep paying on comparable loans. It exists because winning new business is priced aggressively while existing borrowers are assumed not to be watching. Monitoring is the antidote.

Why lenders price loyalty against you

Home loan pricing is a front-book/back-book game. The front book — new customers — gets sharp rates, discounts and cashbacks, because that's where competition happens. The back book — existing customers — faces switching friction: paperwork, time, uncertainty. Lenders price that friction in. Reserve Bank of Australia analysis has repeatedly found that older mortgages carry meaningfully higher average rates than new ones, with the gap widening the longer a loan sits unreviewed.

What it costs in real dollars

Suppose your loan has drifted 0.5 percentage points above competitive new-customer pricing. On a $550,000 balance, that's roughly $2,700 a year in extra interest — every year the gap persists. Left alone for five years, the loyalty tax on that single loan can quietly exceed $13,000. Check your own gap with the Rate Savings Calculator.

Why most people keep paying it

No visibility. Your statement shows your rate, not the market's. The gap is invisible unless something compares them.
Effort asymmetry. Checking rates, gathering documents and comparing lenders is work — so it gets deferred indefinitely.
Loyalty logic. "I've been with them 12 years, they'll look after me." The pricing data says otherwise — tenure typically correlates with a worse rate, not a better one.

How to stop paying it

Know your number. Current rate, balance, and equity position.
Compare against the front book — what would a new customer with your profile pay today?
Act when the gap is meaningful. Rate Monitor uses a $2,500 first-year saving benchmark — big enough to clearly outweigh switching costs.
Automate the watching. The loyalty tax relies on you not looking. Rate Monitor looks continuously, and only interrupts you when the numbers stack up.

FAQ

Does the loyalty tax apply to investment loans too?

Yes — the front-book/back-book dynamic applies across owner-occupied, investment and interest-only lending.

Is asking my lender to reprice enough?

Sometimes — and it's one of the two pathways Rate Monitor covers. Secure Finance can help you seek a better rate from your current lender, and a genuine, quantified refinance alternative is exactly what makes that request credible. If your lender won't move, the refinance option is already scoped.

How much is loyalty costing you?

Put your loan under watch. We'll only call when refinancing may save you $2,500+ in the first year.

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General information only, prepared by Secure Finance Services Pty Ltd (ACL 465059). It does not consider your objectives, financial situation or needs. Figures are illustrative examples, not offers or promised savings.