Loan Details
Offset Savings
Effective loan balance: –
P&I payment with offset: –
Monthly interest saved: –
Annual interest saved: –
Loan term reduction (est.): –
P&I
Monthly Repayment
$0
Monthly Principal–
Monthly Interest (Yr 1)–
Total Repaid–
Total Interest Paid–
Balance at end of term$0
IO
IO Monthly Repayment
$0
Monthly Principal$0 (IO period)
Monthly Interest–
P&I payment after IO reverts–
Total Repaid–
Total Interest Paid–
Comparison Summary
Monthly saving during IO period (IO vs P&I)–
Extra monthly payment after IO reverts–
Extra interest cost of choosing IO over P&I–
Break-even: months until IO costs more total–
Monthly Payment Comparison (IO period)
P&I: –
IO: –
⚠️ IO Revert Risk: When your interest-only period ends, your loan reverts to P&I over the remaining term. This means your monthly repayment jumps significantly. Banks also reassess serviceability at revert. Make sure you plan for the increased repayment before choosing an IO loan.
Important Disclaimer: This calculator is provided by A One Accountants Pty Ltd for general educational purposes only. Actual repayments depend on your lender’s specific terms, rate type (fixed/variable), fees, and calculation method. Interest-only loans carry the risk of negative equity if property values fall. IO loans are not suitable for all borrowers. This tool does not constitute financial or credit advice. Please consult us if you require specific advice on your loan structure. A One Accountants Pty Ltd accepts no liability for any reliance on this tool.