Refinance Savings Calculator: How Much Can I Save?

Australians tend to borrow money to buy a home, put their repayments on direct debit, and leave it at that for years. Life gets busy. The repayments go out, and the loan just sits there. While you were busy, better rates became available. You just didn’t notice.

Right now, the RBA cash rate sits at 4.10% following two consecutive hikes in February and March 2026. The shift has made a lot of Australians suddenly interested in what they are actually paying and what they could’ve been paying. A refinance savings calculator is the fastest way to get that answer, and the gap it reveals can be eye-opening. This blog shows you what the numbers actually look like.

What the Numbers Look Like in Practice

Let us put some figures on it. Say you have a $600,000 owner-occupier loan with 25 years remaining, currently sitting at 6.99%. A home loan refinance savings calculator will show you that dropping that rate to 5.99% reduces your monthly repayments by roughly $465. That is around $5,580 back in your pocket every year, just by switching to a more competitive product. 

According to survey data, about one in three Australians said they would consider refinancing if their rate dropped by at least 1%. Nearly a quarter said 0.50% would be enough motivation. The math supports them, but the action often does not follow.

The Equity Picture Has Changed Dramatically

One thing that has shifted in the last few years is how much equity many homeowners are sitting on. Cotality data as of early 2026 shows Brisbane median house prices have risen 86.1% over five years, with Adelaide not far behind at 79%. Sydney and Perth have also posted strong long-term gains.

That equity matters for refinancing because it directly affects your loan-to-value ratio. A lower LVR gives you access to sharper rates, and in many cases it removes the need for lenders mortgage insurance altogether. Homeowners who bought five or more years ago and have not reviewed their loan recently may have a much stronger negotiating position than they realise. Running your current balance through a refinance calculator Australia lenders accept will give you a clearer picture of where you actually stand.

A Case Study

The couple bought their home in 2018 for $720,000 with a $576,000 mortgage. After the rate hikes in 2022 and 2023, their interest rate climbed to 6.85%. They just went with it, thinking rates would come back down.

When they sat down with the Capital Connections team in late 2025, the first thing we did was look at their property value. Their property was worth about $1.1 million, reflecting Adelaide’s 79% growth over five years. They had about $460,000 left to pay on their loan, so their LVR was now about 42%.

That LVR opened doors. After comparing options across more than 30 lenders, Capital Connections secured a new rate of 5.79%. A refinance savings calculator showed monthly savings of $388, or just over $4,650 per year. Over the remaining term of their loan, the total interest savings came to approximately $56,000.

The refinancing costs totalled $1,450. They broke even in less than four months.

On top of that, they took the approach of keeping their repayments at the old amount. By keeping repayments the same, they are now on track to pay the loan off three years earlier.

How to Calculate Refinance Savings: What to Look For

When you sit down to work out how to calculate refinance savings, focus on a few things beyond the headline rate. 

• The comparison rate matters more than the advertised figure because it folds in most fees. 
• Offset account access can quietly save you thousands over time in ways a basic calculator will not show. 
• The exit costs on your existing loan, particularly if you are on a fixed rate, need to be factored in before you make any decisions.

A good mortgage broker does not just run one calculation. They model different scenarios and show you the full picture, not just the monthly savings.

Where Capital Connections Fits In

Using a refinance savings calculator gives you a starting point. What Capital Connections provides is the full conversation around it. We compare across the whole market, negotiate on your behalf, and review your loan structure to make sure it is set up to work for your goals, not just your lender’s margins.

If you have not had your home loan reviewed in the last 12 months, there is a reasonable chance you are leaving money on the table. We would be glad to show you exactly how much.

Conclusion

Your home loan should be working for you, not quietly draining your budget year after year. The Australian property market has handed many homeowners far more equity than they had five years ago, and that equity is your leverage. A refinance savings calculator turns that leverage into a real number you can act on. With lenders still competing hard for refinances even in a rising rate environment, the opportunity to save thousands is genuine and available right now.

Read more to know about How Does Refinancing a Home Loan Work to get the best interest rates for your home loans.

FAQs

Can a 1% lower interest rate make a difference?

Even a 1% drop can reduce your payment and help you save a lot once they stack up.

How to calculate savings from a refinance?

Use a refinance calculator Australia to calculate your potential payments with a new refinanced interest rate. The difference between your current payment and the refinanced payment is your potential monthly savings.

Does refinancing restart your loan?

Technically, yes. Refinancing replaces your old loan with a new one, so the new loan has its own term, own rate, and own payments.

Is refinancing to fixed loan or variable loan better?

It depends on your personal situation and expectations for interest rates. Given that the RBA has raised rates twice in early 2026 and markets are factoring in the chance of more hikes, some borrowers are opting for partial fixation.

Will refinancing affect my credit?

Yes, refinancing can dip your credit temporarily. But making regular payments can boost it.