Projection assumptions for Your KiwiSaver Calculator in ANZ goMoney

Your KiwiSaver Calculator in the ANZ goMoney app uses assumptions to calculate your current and updated projection.

Your KiwiSaver projection

Similar to the projection contained in your annual statement, most of the key assumptions used to calculate your projection have been set by the Government.

It’s important to know these figures are an estimate only and aren’t guaranteed by us or the Government. They are for information purposes only and do not constitute financial advice.

What your projection is based on

  • Your current balance
  • Contributions made in the last 12 months
  • Your current fund choice
  • An assumed rate of return and the assumptions set out below

What are the projection assumptions?

Your contributions continue each year

  • The projected amount is based on the contributions you've made in the last 12 months and assumes you will continue to contribute in the same way until you reach 65.
  • The updated projection amount is based on the contributions you’ve made in the last 12 months plus the additional amounts you select in the calculator. 
  • We assume that you won't stop contributing before you reach 65. 
  • If you are employed, we assume you don't go on a savings suspension at any point.
  • If you are employed, we assume any employer contributions in the last 12 months will continue until you reach 65.

Voluntary contributions

  • If you made voluntary contributions we determine if these are regular or one-off based on the amount and frequency. We do this to ensure we project contributions that you are likely to continue and limit those you may not.
  • If you make four or more voluntary contributions of the same amount, we treat the contributions as regular and assume the total amount you contributed in the last 12 months will continue until age 65. This is different to how we calculate regular contributions for your annual statement projection.
  • If you made any one-off payments during the last 12 months, you’ll continue to do this every year until you reach 65 but the amount is capped at $1,500 – this ensures any large one-off payments you’ve made that might not be repeated don’t overstate your projection.

Government contributions

  • If you received a Government contribution in the last 12 months, we assume the same amount, up to a maximum of $260.72, will continue to be paid each year until you reach age 65. For example, if you qualified for the full Government contribution of $260.72, your projection will include this for every year. If you only qualified for a portion of the contribution, that same portion will be applied every year.
  • If you earn more than $180,000 per year, you are not eligible to receive the Government contribution. However, if you received a Government contribution in the past 12 months, we will assume it continues annually until age 65, even if your future income makes you ineligible.

Your contributions will increase each year

  • We assume that contributions will increase by 3.5% each year. For example, a $200 per month contribution today will be a $207 per month contribution next year, a $214.25 per month contribution the year after and so on.
  • We also assume any contributions you add or change in the calculator will increase by 3.5% each year and include this in your updated projection. 

Your age today

We calculate your age when you access the tool, we don’t round up or down we use your exact age to calculate your projection.


You don’t make any withdrawals

  • We assume no amounts are withdrawn for first home purchase, significant financial hardship or any other reason before age 65.
  • For the weekly amount:
    • You will not make any lump sum withdrawals after you reach age 65.
    • You will make regular withdrawals from age 65 until age 90 and your balance reaches zero.

Projected amounts are in today’s dollars

  • This means we're showing you how much your money would be worth if you were to receive it today. This is to help you understand what you could buy with that money, based on how much items cost today.  
  • The actual dollar amount in the future will be more than what's shown in the projection. However, we adjust the projected amount for inflation to show you what it means in terms of buying power today. 
  • The inflation assumption is currently 2% per annum.

You can include New Zealand Superannuation

  • NZ Superannuation is excluded by default in your weekly projection.
  • You can include NZ Super in your weekly projection.
  • NZ Super amount used is for a single person living alone with 'M' tax code.
  • This amount is $538 as at 1 April 2025.

The projected amounts are rounded

  • Balances and the weekly amount are rounded to the nearest whole number.
  • If an amount is required to be rounded, an amount at the midpoint is rounded up.

You stay in the same fund

  • You stay in the same fund or mix of funds until you are 65.
  • The assumed rate of return is based on your fund type and the assumed rates of return are outlined in the table below.
  • The assumed rate of return is set by the Government.
  • These assumed rates are:
    • After tax of 28% – this is the highest and most common tax rate for KiwiSaver members
    • After fees – the fees used are an average for your fund type and don’t reflect the actual fees you will pay
  • After 65, your balance will earn a 2.5% rate of return each year, after fees and tax.
  • If you select a different fund when using Your KiwiSaver Calculator, the assumed rate of return for the selected fund will be applied to your updated projection amount.

Assumed rates of return by Government set fund category type

Growth assets

Applicable ANZ Investments-managed fund

Assumed rate of return

Defensive

0 - 9.9%

Cash Fund  

New Zealand Fixed Interest Fund 

International Fixed Interest Fund

1.5%

Conservative

10 - 34.9%

Conservative Fund

2.5%

Balanced

35 - 62.9%

Conservative Balanced Fund 

Balanced Fund

3.5%

Growth

63 - 89.9%

Balanced Growth Fund  

Growth Fund

4.5%

Aggressive

90 - 100%

High Growth Fund

Australasian Property Fund 

International Property Fund  

Australasian Share Fund 

International Share Fund 

Sustainable International Share Fund

5.5%


Assumed rate of return for Lifetimes option

  • Under 50 years old – 3.5%
  • 50 years old or over – 2.5%

Your projection could be less than your current balance

This could happen when you are in the Cash Fund because the assumed rate of return is less than the percentage we use for adjusting for inflation.

Not all customers will see the projection in goMoney

You won't see a projection in goMoney if:

  • You have opened your KiwiSaver account with us in the last 12 months
  • You are either under 18 years old or over 64 years old
  • Your balance is less than $1,000

You can use our ANZ KiwiSaver account calculator at any time to generate a projection based on your answers to a few questions.