About our case studies

All of our case studies are examples to help you understand how choices can affect KiwiSaver savings. The figures used are for illustration only and may not reflect actual returns.

General assumptions

The figures in our case studies:

  • show projected savings both:
    • where they haven’t been adjusted for the effect of rising prices over time (that is, inflation) in which case the amount does not reflect the ‘real’ buying power in the future
    • where they have been adjusted for inflation of 2% per year to show the ‘real’ buying power of the savings in the future
  • assume employer contributions are 3% of the stated before-tax salary
  • apply annual member tax credits appropriate to the contributions made and at today’s levels only
  • assume salaries will increase by 2.5% each year
  • assume positive investment performance in the funds within the KiwiSaver schemes managed by ANZ Investments each year (after fees and taxes using a prescribed investor rate of 28%) of:
    • Conservative Fund: 3.2%
    • Conservative Balanced Fund: 3.9%
    • Balanced Fund: 4.6%
    • Balanced Growth Fund: 5.3%
    • Growth Fund: 6.0%
  • assume a membership fee of $2 per month
  • generally round savings to the nearest $1,000
  • account for tax on employer contributions when appropriate.

Additional assumptions

“David & Nicole”:

  • assumes both are eligible for the first home withdrawal and KiwiSaver HomeStart grant
  • assumes they have never worked in Australia and/or transferred any Australian complying superannuation funds to their KiwiSaver accounts.

“Zoe”:

  • Zoe’s birthday is assumed to be on 1 July, with her projected savings calculated in March
  • joined KiwiSaver when she was 22, earns $45,000 a year (before tax) and contributes 3% of her before-tax pay into our Lifetimes option
  • did not receive the Government’s $1,000 kick-start
  • projected savings have been adjusted for inflation.

“Sarah”:

  • Sarah’s birthday is assumed to be on 1 July, with her projected savings calculated in March
  • selected the Lifetimes option
  • did not receive the Government’s $1,000 kick-start
  • projected savings have been adjusted for inflation.

“Sai”:

  • Sai’s birthday is assumed to be on 1 July, with his projected savings calculated in July
  • selected the Lifetimes option
  • did not receive the Government’s $1,000 kick-start
  • projected savings have been adjusted for inflation.

“Jane and Linda”:

  • Both assumed to have a birthday on 1 July, with projected savings calculated in July
  • selected the Lifetimes option
  • earn $50,000 (before tax) and have $10,000 in their KiwiSaver account at age 30
  • did not receive the Government's $1,000 kick-start
  • projected savings have been adjusted for inflation.

Retirement Savings Confidence Barometer

The lump sum calculation assumes:

  • the income you need will last for 20 years
  • the income is inflation-adjusted at an annual rate of 2.5% (thus maintaining purchasing power of your dollars throughout the 20-year period)
  • the lump-sum investment will earn a real post-tax and after-inflation return of 2%
  • the original lump-sum investment will be exhausted after 20-years.
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