Stay or Switch? How to Win a Sharper Home Loan Rate

You don’t have to accept the rate your bank gives you. If your home loan rate is clearly above what a new customer would pay, you can usually either negotiate a sharper deal with your current lender (repricing) or refinance to another bank. The smartest move is to benchmark your rate, push your bank for a discount, and only switch if the extra savings comfortably outweigh the costs and hassle over the next few years.

This guide walks you through that decision in plain English, so you can take concrete steps this week.

Start by benchmarking your current rate against realistic new‑customer deals.

1. Stay or switch? The quick answer

In most cases, you should try to reprice with your current lender first, then consider refinancing if:

• Your current rate is ~0.50–1.00 percentage point or more above sharp new‑customer rates for a similar borrower; and
• Your bank won’t match (or get close to) a realistic competitor quote; and
• A simple breakeven calculation shows you recover all switching costs in around 2–3 years or less.

Repricing is usually faster, involves less paperwork and avoids fresh serviceability assessment under APRA’s 3% buffer. Refinancing takes more effort and scrutiny, but can unlock bigger savings, better features or a more flexible structure.

If you’re not sure whether your current rate is uncompetitive, start with this simple framework and then come back to this guide to plan your next move.

2. Step 1 – Check if you’re paying a ‘loyalty tax’

2.1 What is the mortgage loyalty tax?

Banks often give their sharpest rates to new customers and quietly let existing borrowers drift up over time. That gap is your loyalty tax – you’re effectively paying extra for staying put and not asking questions.

You might be paying a loyalty tax if:

• Your rate is 0.50–1.00%+ higher than the best deals available for similar borrowers; or
• Your fixed rate recently ended and you’ve been rolled onto a high revert rate; or
• You haven’t reviewed or renegotiated your loan in 2–3 years.

Roy Morgan data shows more than a quarter of Australian mortgage holders are now ‘At Risk’ of mortgage stress, largely due to higher rates. Keeping even a 0.50% loyalty tax when you don’t need to is money straight out of your pocket.

2.2 How to benchmark your rate in 15–20 minutes

You don’t need a perfect comparison, just a realistic benchmark for someone like you (owner‑occupier vs investor, P&I vs IO, similar LVR).

1. Grab your latest statement

   • Note: current rate, remaining balance, remaining term, repayment type, fixed vs variable, and your approximate property value.

2. Work out your LVR (loan‑to‑value ratio)

   • Example: Loan $640,000 / Property value $800,000 = 80% LVR.
   • At 80% or lower, you normally avoid LMI and unlock sharper pricing.

3. Check realistic new‑customer rates

   • Look at 3–4 major banks and a couple of smaller lenders.
   • Filter for your situation: e.g. owner‑occupied, P&I, 60–80% LVR.

4. Compare the gap

   • If your rate is around 0.50–0.70% higher than competitive offers, it’s worth a serious repricing request.
   • If the gap is 1.00%+, you’re almost certainly overpaying and should be ready to move if your bank won’t sharpen.

For a deeper sense check, see the specific checks in /insights/how-to-tell-if-your-home-loan-rate-is-uncompetitive-2026.

2.3 What’s a 0.50% or 1.00% gap worth?

On a $700,000 loan over 25 years, P&I:

• At 6.5%, repayments are about $4,728 per month.
• At 6.0%, repayments fall to about $4,492 per month.
• That’s a saving of ~$236 per month, or ~$2,832 per year.

Drop by 1.0% instead (6.5% → 5.5%) and the annual interest saving is well north of $5,000, especially early in the loan when the balance is higher. Small rate cuts are meaningful on big balances.