It depends on the gap between your current rate and what you could move to, and your loan size. Even a small rate reduction on a large balance can save a meaningful amount over the life of the loan. A broker can model your specific numbers.
Written by Ross McFarlane, Licensed Mortgage Broker (Credit Representative 526725). About the authorSavings are entirely situational, so any fixed figure would be misleading. What matters is the gap between your rate and the market, applied to your balance and remaining term. Rather than guess, it is worth having the actual numbers run against your loan before deciding.
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Last reviewed: June 2026
General information only. This page provides general information about home loans and is not financial or credit advice, a quote, or a guarantee, and your personal circumstances have not been considered. Lending policies, interest rates, fees and eligibility vary by lender and change over time. Always confirm your own situation with a licensed mortgage broker or lender before acting. Ross McFarlane (Credit Representative 526725) is an authorised Credit Representative of Australian Associated Advisers Pty Ltd t/a Keylend, Australian Credit Licence 392169.