Contributions are taxed before they hit your KiwiSaver balance. Once your money is in your KiwiSaver account, only the gains are taxed. Check out the details below.
How it's taxed
PAYE through your paycheck
ESCT before their contributions enter your KiwiSaver account
Gains in your KiwiSaver Investment
PIR at 10.5%, 18.5% or 28% depending on your income for the last few years