When I'm 65...
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Retirement assumptions

Your Booster KiwiSaver Scheme member statement shows an estimated figure we think you'll have at retirement. How did we get to that number?

We've based the figures on what we know about you, projected calculations and future assumptions to indicate what we think you might have at 65.

Of course, it's important to remember that these figures are estimates only, and they'll change from year to year. If you change your contributions and the value of investment markets changes, these estimates will change, especially if you’re a long way from age 65. 


Here is the list of assumptions we've used to calculate your retirement amount:

  • You keep contributing at your current rate into the same investment fund or funds until you reach 65. Where we think your contributions over the last year or part-year don’t reflect your likely $ amount each year, we have estimated an amount for one year – an ‘annualised’ amount.
  • Your total contributions increase by 3% each year.
  • You stay in the same investment fund or funds.
  • Government contributions remain the same at $521.43 each year.
  • Your prescribed investor rate (PIR) stays the same.

Retirement income

The estimated retirement lump sum at age 65 and the estimated retirement income each week are shown in both future values AND in today’s money value.

  • The estimated retirement lump sum at age 65 and the estimated retirement income each week are rounded to the nearest $10. If the estimated retirement income each week is less than $10, it is rounded to the nearest $1.

Your income during your retirement comes from both:

  • the money you take out of your KiwiSaver account – ‘capital drawdown’
  • investment earnings over 25 years from the age of 65, assuming a return each year of 3.5% after tax.

Remember your retirement lump sum and income given here are not guaranteed – this is only a guide!

To calculate the values in today’s money we have assumed a 2% annual inflation rate.

Assumed rates of return

We estimate that the rate of return for your fund (from now until you retire at 65) will be:

Assumed rates of return (after fees and tax)
Fund 10.5% PIR 17.5% PIR 28% PIR
Enhanced Income 2.1% 2.0% 1.7%
Default Saver 3.7% 3.4% 3.1%
Capital Guaranteed 2.5% 2.3% 2.1%
Moderate 4.4% 4.1% 3.8%
Asset Class Conservative 4.4% 4.1% 3.8%
Balanced 5.4% 5.1% 4.7%
SRI Balanced 5.4% 5.1% 4.7%
Asset Class Balanced 5.4% 5.1% 4.7%
Balanced Growth 6.3% 6.1% 5.6%
Asset Class Growth 6.3% 6.1% 5.6%
Shielded Growth 6.4% 6.1% 5.8%
High Growth 7.3% 7.0% 6.6%
SRI Growth 7.3% 7.0% 6.6%
Trans-Tasman 7.0% 6.7% 6.2%
International Shares 6.6% 6.4% 6.0%
Geared Growth 8.1% 7.8% 7.4%