Things you should know.

* Eligible for the potential rate if your balance on the last day of the month is $20 greater than on the last day of the prior month.

This calculator is a guide only. It does not take into account your personal financial situation or goals. Results are based on the interest rate specified after-tax and do not include inflation rate adjustments. Interest rates are subject to change. You can get a copy of the current disclosure statement for Westpac New Zealand Limited here and a copy of any applicable investment statement or term sheet for your investment here or from any Westpac branch free of charge.