Split Loan Comparison Calculator
Compare fixing all, part or none of your loan. A split lets you lock in certainty on part of the debt while keeping offset and extra-repayment flexibility on the rest. Test what happens if rates rise or fall.
Your details
Applied to the variable portion only
| Fixed portion (50%) at 6.30% | $350,000 |
| Variable portion (50%) at 6.50% | $350,000 |
| All fixed - repayment unchanged if rates move | $4,333 |
| All variable - repayment now | $4,424 |
| All variable - after the move | $4,895 |
| Split vs all variable after the move saved by having fixed a portion | $281 |
| Fixed portion | Repayment now | After move | Change |
|---|---|---|---|
| 0% | $4,424 | $4,895 | $470 |
| 25% | $4,402 | $4,754 | $353 |
| 50% | $4,379 | $4,614 | $235 |
| 75% | $4,356 | $4,473 | $118 |
| 100% | $4,333 | $4,333 | $0 |
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Frequently asked questions
What is the right split?
There is no standard answer. Match the fixed portion to the part of your repayment that must be certain - for example the amount you could not absorb if rates rose another 1%.
Can I make extra repayments on the fixed portion?
Usually only up to an annual cap, commonly $10,000 to $30,000. Exceeding it can trigger a break cost, so extra repayments are normally directed at the variable portion.
General advice warning: This calculator provides general information only. It does not take into account your objectives, financial situation or needs, and it is not personal credit or financial advice.
Results are estimates based on the inputs and assumptions shown. Any interest rate used is an example and is not an offer of credit. Speak to a licensed credit representative before acting on these figures.