I want to calculate
Offset balance, interest saved, and term reduction.
Calculator
Offset Account Calculator
Estimate interest saved when offset balances reduce the loan balance that attracts interest.
Loan details
Offset settings
Estimated interest saved
$171,413
Effective balance now
$350,000
Estimated time saved
6 years 1 month
Interest without offset
$440,345
Interest with offset
$268,932
What this means
- The first-year interest reduction from the starting offset is roughly $2,875 before repayments change the balance.
- Add regular offset contributions to see how retained cash can compound the interest saving.
- The estimate assumes offset funds remain available and the loan rate, fees, and repayment settings do not change.
With-offset vs without-offset balance
Sources checked 4 Jul 2026. Results update as you edit the inputs.
Assumptions and sources›
These calculators provide general estimates only. They are not loan approval, financial advice, tax advice, or legal advice.
- ASIC MoneySmart mortgage calculator
Checked 4 Jul 2026
Repayment calculations use standard amortisation and assume rates remain unchanged for the scenario.
Review the estimate
Use the calculator output as a starting point for a document review.
RAY Accounting Group can help organize the records behind income, expenses, loans, and property decisions.