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KiwiSaver Calculator FAQ

Common questions about assumptions, methodology, and recent NZ KiwiSaver rule changes.

Assumptions & Methodology

We use 10-year NZ averages (before fees, before tax):

Fund typeAssumed return
Defensive3%
Conservative4%
Balanced6%
Growth8%
Aggressive9%

These are indicative — actual returns vary year to year and by provider. Sources: Sorted, interest.co.nz, and publicly available NZ fund performance data.

NZ Rule Changes

About the Calculator