Home loan calculator
See what refinancing could change
Compare your current loan with a proposed rate to understand repayment changes, switching costs, break-even and the longer-term interest difference.
Your scenario
Enter your loan details
Use your remaining balance and term. Everything stays on this device and updates as you edit.
Your estimate
What could refinancing change?
Potential yearly savingBased on selected repayment frequency
Estimated break-even
Potential net savingInterest difference less net switching costs
At a glance
Current vs refinanced
See detailed comparison
Annual repayment difference
Estimated switching costs
Gross interest difference
Net position over modelled term
Estimated monthly repayments
How the result builds
Estimated savings over time
The graph shows how the estimated difference could build over the modelled term.
What if you keep making your current repayment?
If you refinance to the lower rate but keep paying your current estimated amount, the loan could be paid off sooner.
estimated payoff instead of , potentially saving in interest compared with the refinanced scheduled repayment.
Use this as a starting point
Try another rate or term, then explore the guided refinance journey when you are ready to discuss your options.
Explore the Refinance journey →Important assumptions
How this estimate works
Both scenarios use principal-and-interest amortisation with customer-entered rates assumed constant. The break-even estimate compares cumulative scheduled repayments and upfront net switching costs over the modelled loan period. Lender calculation conventions may vary.
Interest-only periods
Available interest-only periods vary by lender and product. This calculator models the period you select.
What this calculator does not assess
This does not assess refinance eligibility, LVR, equity, serviceability, approval, tax, legal matters or a lender’s actual offer. It does not automatically calculate fixed-rate break costs, government fees or cashback. Enter estimates where relevant.
Privacy
No financial inputs or results are transmitted externally. Values are used client-side only and may be carried between Gifted calculators using session storage. Using this calculator does not create an enquiry.
Estimate only. This calculator is a mathematical comparison, not financial advice. Consider the full cost, features and suitability of any refinance before making a decision.