Practical guide
How Extra Payments Can Reduce a Home Loan
Paying more than the required monthly instalment can reduce the outstanding principal sooner. When interest is calculated on a lower balance, the loan may finish earlier and cost less overall.
Fact checked and updated 13 September 2026
How the saving develops
The effect compounds over time because each extra amount reduces the balance used for later interest calculations. Earlier and consistent extra payments usually have a larger effect than the same amount paid near the end.
What the estimate assumes
A comparison calculator normally assumes the rate remains unchanged and every extra payment is allocated directly to the loan. Real results change with interest rates, fees, skipped payments and lender processing rules.
Confirm access and allocation
Ask the lender whether extra funds can be withdrawn again, whether any notice is needed and how additional payments are allocated. Keep an emergency reserve before committing all spare cash to the bond.
Use the related calculators
Apply the explanation above with your own figures. Open a calculator below, check every input and review the result assumptions before making a decision.
Official source checked
This guide was checked against National Credit Regulator. Rules, rates and institutional requirements can change, so confirm time-sensitive information at the official source.