Split Loan Calculator

A split loan divides your mortgage between fixed and variable rates so you get some rate certainty and some flexibility. The blended rate sits between the two; the variable portion typically retains offset and unlimited extra repayments.

Fixed monthly
$1,758
$300,000
Variable monthly
$1,806
$300,000
Total monthly
$3,565
Blended 5.92% p.a.

Frequently asked questions

What's a sensible fixed/variable split?

There is no universal answer. Common patterns are 50/50 (balanced certainty and flexibility), 70/30 fixed (favouring rate certainty), or 30/70 fixed (favouring offset flexibility). The right mix depends on your view of future rate moves and how much you save in offset month-to-month.

General information only. Mortgage Rate Calculator publishes editorial content and tools for general information. We do not provide credit assistance and we do not give personal financial advice. We may earn commission when you click through to some lender websites — see our affiliate disclosure. We do not receive payment from any of the brokers listed on this site. Compare rates carefully and consider seeking independent advice before deciding on a home loan.