Split loan calculator

How to use the split loan calculator

1. Enter your loan amount

   Type your total mortgage amount, starting from the $250,000 default.

2. Set the fixed portion

   Enter the percentage of the loan you want to fix (default 60.00%). The remaining share is allocated to the variable portion.

3. Choose the fixed period

   Select how many years the fixed portion will stay locked in (default 3 years).

4. Enter fixed and variable rates

   Input the fixed interest rate (default 5.50%) and the variable interest rate (default 5.50%) to compare how rate gaps change your cost.

5. Set term and payment frequency

   Choose the total loan term (default 30 years) and select monthly, fortnightly or weekly repayments.

To work out how large your variable portion should be, test your expected cash savings in our home loan offset calculator.

The calculator displays your combined repayments during and after the fixed period, total interest payable across the split loan, total interest if the entire loan stayed at the variable rate, and a loan balance chart.

What this fixed and variable split estimate covers

Splitting a home loan as a visa holder or expat

Couples buying on a partner visa or 482 visa as joint tenants with an Australian citizen or permanent resident partner can borrow up to 95% LVR. Many split their loan so the fixed portion gives repayment certainty, while the variable portion links to an offset account for savings, family gifts or documented overseas transfers.

If you're an Australian expat receiving annual bonuses or transferring funds from overseas, keep your variable portion large enough to absorb extra repayments. Most banks cap extra payments on the fixed split and charge break costs if you pay it off early.