AMP KiwiSaver Scheme
 

Retirement Calculator Assumptions

Important Information

This calculator provides indicative projections only and is designed to help you estimate your projected savings balance at retirement. It is intended as a guide only and does not constitute investment advice. Whilst care has been taken to ensure the information supplied is accurate, AMP does not guarantee you will receive this amount at retirement age and does not accept any liability for any loss or damage arising out of the use of this calculator*. 

The results are based on the information you provide and standard industry assumptions, including future investment returns, inflation, and contribution rates. These assumptions may not reflect actual market conditions or your personal circumstances. For more information see “How the Calculator works ” and “Assumptions” below.

*Note: Investing in any investment scheme such as the AMP KiwiSaver Scheme is subject to risk, which includes the potential for you to lose income and any amounts invested. Past performance is not indicative of future results which are subject to market fluctuations and other risks, including possible loss of capital. Returns are not guaranteed by any person and fees are subject to change.
When using this calculator, you should have regard to your particular objectives, needs, and financial situation. If necessary, we recommend that you seek appropriate professional or financial advice before acting on any of the results provided by this calculator. A disclosure statement is available from your adviser, on request and free of charge. The Calculator has been designed for New Zealand conditions only.

How the Calculator works

The AMP KiwiSaver Scheme Retirement calculator can show you:

  • Your estimated savings (after fees and taxes) you may have in your KiwiSaver account at your selected retirement age using your inputs and the ‘Assumptions’ listed below,
  • An estimate of your annual income (after fees and taxes), your estimated savings and NZ Super may provide you in retirement. NZ Super is by default included in your annual projected income and you can remove NZ Super on the Results page.
  • A forecast of a deposit that you may be able to save in KiwiSaver for your first home.

Note: the Budget 2025 KiwiSaver changes have been allowed for this calculator. 

Assumptions

The AMP KiwiSaver Scheme calculator can give you an idea of what your KiwiSaver balance could look like at retirement, and how much that amount equates to as a weekly income from age 65 through to age 90. It can also give you an estimate as to whether you will have a sufficient balance in your KiwiSaver account to make your desired first home withdrawal. Your projection is an estimate only, and incorporates the salary you enter, the level of contributions you enter, how old you are, what type of fund you select, and an assumed rate of investment returns.

The core assumptions used to calculate your retirement projections are set by the Government. These include assumed rates of investment returns, salary and wage inflation and purchasing power inflation. The calculator allows you to try different scenarios that are not included in your KiwiSaver Annual Statement projection (such as changing your retirement age, taking a career break or adding other savings or larger contributions). This means that the projections calculated on this website will be different to your KiwiSaver Annual Statement projection, which uses information relating to the most recent KiwiSaver year to 31 March.

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

In order to calculate your estimated projected amount of KiwiSaver savings at retirement and your yearly income from retirement until age 90 we have utilised several assumptions which are set out below. In estimating whether you will have a sufficient balance in your KiwiSaver account to make your desired first home withdrawal we have used these assumptions to the extent relevant.

Projected results

The projected balance has been adjusted for future price inflation, so it is based on the purchasing power of today. Income from NZ Super is included in the projected annual income unless you have chosen to exclude this.

The calculator projects income on an annual basis and so will look different to the weekly income projected in your KiwiSaver Annual Statement.

Current Age

You provide your current age.

Retirement Age

The projection assumes that your retirement age, and the age that you begin to withdraw your balance, is age 65.

You can change the retirement age on the Results page.  Changing the retirement age assumes that you will continue earning and contributing until the retirement age selected, and you only start to draw down from your account after you have retired. Unless you have chosen to exclude NZ Super, the yearly income shown will be how much you can draw down after you have retired, plus NZ Super.

If you don’t select a different retirement age, it defaults to age 65.

Retirement savings run-out age

The calculator assumes you leave your money invested and will make regular withdrawals until age 90 (i.e. for 25 years from age 65) until your balance reaches zero.

You can set your own desired run-out age to see if your projected retirement savings (and NZ Super, unless de-selected) will be on track to provide your desired retirement income.

NZ Super

NZ Super is included by default in your annual projected income. This is another reason why the projected income calculated on this website will look different to your KiwiSaver Annual Statement projection. You can remove NZ Super on the Results page.

If NZ Super is included, the retirement income will include the annual amount after tax, at ‘M’ tax code, as outlined below. The calculator assumes you have no taxable income other than NZ Super. You can add other savings or assets on the Results page.

The NZ Super amount for a single person is currently $538.42 per week (assume single and living alone, after tax). 

Member and employer contributions

Member and employer contributions are based upon the annual income you enter into the calculator and the KiwiSaver contribution rates selected by you in the calculator.

All contributions, member and employer, voluntary and one-off are projected forward into the future with an assumed level of wage/salary growth of 3.5% per year, with contributions increasing in line with pay.

In line with the Government KiwiSaver changes, the calculator uses the default contribution rates of 3.5% (unless selected otherwise) until 1 April 2028 and the default 4% contribution rate effective 1 April 2028 for saving projections.

Member contribution rate

If you're employed, you can choose contribution rates from 0%, 3.5%, 4%, 6%, 8% or 10% of your salary or wages (before tax). If you are unsure how much you contribute, then select 3.5%    (this is the default rate which an employer will use for your member contribution rate if you don’t make a selection). Your employer will be able to confirm the percentage you contribute.

If you are self-employed, not working or not contributing, you can choose 0% and then enter a ‘one-off contribution’ or a ‘regular top-up’ on the Results page.

It is assumed you take no savings suspensions – where you stop contributions for a period of time. You can change to part-time work or take a career break on the Results page. The retirement calculator assumes that you do not make early withdrawals. You can see the impact of a withdrawal by adding one on the Results page.

Employer contribution rate

If you are a KiwiSaver member making contributions from your pay, your employer is required to contribute at least 3.5%   of your salary or wages (before tax).

If you are unsure how much your employer contributes, then select 3.5%  .

If you are self-employed or unemployed, you can choose ‘Other’ and enter ‘0%’.

Employer’s superannuation contribution tax (ESCT)

If you have selected that you receive 'employer contributions', the calculator will apply employer's superannuation contribution tax (ESCT) on employer contributions until you're 65 (employer contributions will stop when you’re 65). The salary ranges for which ESCT is applied are adjusted for inflation.

Annual salary + gross employer contributions
ESCT rate


$0 – $18,7200


10.50%

$18,721 - $64,200

17.50%

$64,201 - $93,720

30%

$93,720 - $216,000

33%

$216,0001+39%
The calculation tool assumes that the salary bands increase over time at the same rate as salary is assumed to increase (i.e. 3.5% p.a.).
Withdrawals

It is assumed that no amounts are withdrawn for first home purchase or financial hardship, or (for estimating the yearly income) as a lump sum after you reach age 65.

For the yearly income in retirement it is assumed you will make regular withdrawals until age 90 (e.g. for 25 years from age 65) until your balance reaches zero.

You can see the impact of a withdrawal on the Results page.

Government contribution

It is assumed you receive Government contributions of 25c for each dollar you contribute per year, up to a maximum of $260.72.  

The calculation assumes you are eligible for the Government contribution between the ages of 16 and 65.

The calculator assumes your current Government contribution remains unchanged until retirement age (currently 65), based on your inputs. It does not account for any future changes to your circumstances, such as contribution rate or career breaks, or to Government policy, which may affect your eligibility or contribution amount.

The Government contribution amount is not adjusted for inflation.

The KiwiSaver projections tool assumes that your taxable income remains below $180,000 each year until age 65, and that you therefore remain eligible for the Government Contribution.

Current KiwiSaver balance

You provide your current KiwiSaver balance.

Rates of return

The rate of return is based on your fund type, as shown in the table below (Table 1). The rates of return are:

  • After tax of 28%. This is the highest and most common tax rate for KiwiSaver members across all KiwiSaver providers. Your tax rate may be different.
  • After fees. The fees used are an industry-average for your investment option and do not reflect the actual fees you pay.

It is assumed that you stay in the same fund or fund mix until you reach age 65 or your chosen retirement age.

These rates of return are based on those provided by the Government and we have indicated how they apply to all the investment options in the AMP KiwiSaver Scheme.  Find out more on the Financial Markets Authority website at https://www.fma.govt.nz/investors/resources/kiwisaver-projections

After age 65, the assumed rate of return is 2.5% after fees and tax, regardless of fund selection.

The Default investment option is a “Balanced” fund, but you can change this in the calculator.

The rate of return for your chosen investment option is also applied to “Other Savings/assets”.

Table 1 (Rates of Return)

Government Fund Type
 AMP Investment Option
Government Assumed Rate of Return to age 65 (after fees and tax)

 

  

Conservative

 

 

 

AMP Defensive Conservative Fund

AMP Conservative Fund

Global Select Conservative Fund

Milford Conservative Fund

2.5%

Balanced

 

 

 

 

AMP Balanced Fund

AMP Balanced Fund No. 2

AMP Moderate Balanced Fund

AMP Moderate Fund

Milford Balanced Fund

3.5%

Growth

 

 

 

 

AMP Aggressive Fund

AMP Growth Fund

Global Select Growth Fund

Global Select Balanced Growth Fund

Milford Active Growth Fund

4.5%

Aggressive

 

 

AMP Australasian Shares Fund

AMP International Shares Fund

Milford Aggressive Fund

5.5%

   


Note: The AMP KiwiSaver Calculator does not include Defensive Fund and Lifecycle Fund Types.

Desired retirement target income (How luxurious will my retirement adventure be?)
  • 'Basic' and 'Comfortable' retirement lifestyles are based on information available in the New Zealand Retirement Expenditure Guidelines (2025). Where available we have used 'metro' (urban area) figures and 'single'. For 'Basic' we took the 'No Frills' figures and for 'Comfortable' we took the 'Choices' figures in the New Zealand Retirement Expenditure Guidelines. These guidelines do not represent recommended levels of expenditure.
  • If you don’t choose your desired retirement target income, the default value is set to 'Comfortable'. You can set you own target income through the 'Choose your own' option.
     
Single, expenditure per week
 BasicComfortable
(No Frills)(Choices)
TOTAL WEEKLY ESTIMATE$705.34$790.62
TOTAL ANNUAL ESTIMATE$36,804.64$41,254.55


 

You can view the details of the 2025 Massey figures from page 20 onward in the 2025 document.

 

Notes:

  • The calculations assume an average of 52.18 weeks per year, which is based on the following: 
    - In a non-leap year of 365 days there are 52.14 weeks (365 / 7) and in a leap year of 366 days there are 52.29 weeks (366 / 7).
    - The assumed average of 52.18 weeks per year is over the regular four year cycle. Over this period there are on average 365.25 days per year.
  • The New Zealand Retirement Expenditure Guidelines omits some housing costs, i.e. costs associated with a mortgage, maintaining your own home, living in a retirement home, as they are influenced by a person's choice of housing and dependence on a person's individual circumstances.


Inflation
The assumed rate of general inflation used is 2% per year (the long term expected rate of inflation) to show the ‘real buying power’ of your savings in the future.

Salary Inflation
The assumed rate of wage and salary inflation used is 3.5% i.e. how much your wages are assumed to increase each year.

First home withdrawal

The calculator (Saving for first home function) assumes, based on your inputs, that your KiwiSaver savings are built up with contributions from you, your employer, the Government and investment earnings during the saving period that you selected.
The calculator assumes you are eligible for a first home withdrawal.
Members are only eligible to make a first home withdrawal after they have been a KiwiSaver member for three years.
For more information on first home withdrawal, please check https://www.amp.co.nz/media-hub/first-home

Rounding
The projected balance at retirement is rounded to the nearest $1,000.
If an amount is required to be rounded, an amount at the midpoint is rounded up.