See how much you could save

A few simple tweaks, like changing your fund choice or contribution rate, could have a big impact on the amount you can save for retirement.

Calculate your savings

Use our calculator to see how your KiwiSaver might grow between now and age 65, and the impact your fund choice or contribution rate could have on your lifestyle when you retire.

See assumptions on how this calculator works.

Amount saved by retirement

change funds 3

Change your fund online

It’s important to make sure that you’re in a fund that suits you and your attitude towards risk. Some funds are riskier than others, but could potentially generate a higher return. Our ‘What kind of investor am I?’ tool can help you choose a fund to suit you. Once you’ve decided, you can change your fund in Internet Banking.

Log in to change your fund

Show me how

increase contributionsIncrease your contributions

Over time, extra contributions can make a big difference to the overall value of your KiwiSaver account. You could ask your employer to increase your contribution rate or, if you have a little extra cash in your pocket, you can make a one-off payment in Internet Banking whenever it suits you.

Log in to make a one-off payment

Show me how

Small Print

BNZ Investment Services Limited, a wholly owned subsidiary of BNZ, is the Issuer and Manager of the BNZ KiwiSaver Scheme. Download a copy of the BNZ KiwiSaver Scheme Product Disclosure Statement PDF 1.5MB, or pick up a copy from a BNZ store.

Investments made in the BNZ KiwiSaver Scheme do not represent deposits or other liabilities of BNZ or any other member of the National Australia Bank Limited group, and are subject to investment risk, including possible delays in repayment and loss of income and principal invested. None of BNZ, any other member of the National Australia Bank Limited group, the Supervisor, any director of any of them, the Crown or any other person guarantees (either fully or in part) the performance or returns of the BNZ KiwiSaver Scheme or the repayment of capital. 

BNZ Authorised Financial Advisers' Disclosure Statements are available on request and free of charge.

About this calculator

  1. The results obtained through the calculator are not guaranteed to occur, and the calculator is simply a tool to help you understand how choices you make may affect the value of your KiwiSaver savings and retirement income.
  2. The financial results are for illustration only, and are based on several assumptions. The results are therefore unlikely to reflect your actual balance or your actual retirement income. For example, actual investment returns are likely to fluctuate due to investment and other risks, including loss of capital invested. Returns may be negative in some periods.
  3. This calculator is not intended to convey personalised advice, and we recommend that you seek financial advice before making any decisions on investing in the BNZ KiwiSaver Scheme.
  4. To the extent permitted by law, neither Bank of New Zealand (BNZ) nor any of its related parties accept any responsibility or liability arising from the use of this calculator.
  5. The balance and income calculations of this calculator are based on the following assumptions:
    1. You are aged between 18 and 65 years of age. Your retirement age is 65, and this is the age at which you stop working. Employee and employer contributions, and Member Tax Credits, cease at age 65, and you become fully eligible to withdraw your KiwiSaver savings upon reaching age 65. We assume you’ve joined KiwiSaver before age 60.
    2. You contribute to KiwiSaver via compulsory employee contributions (3%, 4% or 8% of your annual income, before tax, as selected). You make no voluntary contributions, including transfers from other superannuation schemes, over and above your compulsory employee contributions.
    3. Your employer makes KiwiSaver employer contributions at a rate of 3% of the annual income you state (before tax). We calculate a deduction for Employer’s Superannuation Contribution Tax (ESCT) using the rate applicable to the annual income you state. ESCT is deducted at that rate from all future employer contributions until retirement.
    4. Employee contributions are paid out of your pay. Employer contributions are paid in additionally. The calculations do not make any allowance for people who are self-employed or paid on a total remuneration basis.
    5. You are eligible for Member Tax Credits. Member Tax Credits are derived from the calculated employee contributions each year. Member Tax Credit rules are assumed to continue in their current form until you reach age 65.
    6. Your annual income, and therefore the value of the employee and employer contributions to your account, increases by 3.0% each year.
    7. You take no contribution holidays.
    8. No amounts are withdrawn prior to retirement.
    9. Your account earns investment returns each year until age 65 depending on the fund you choose, as set out below. These returns are after all fees and taxes (assuming a 28% Prescribed Investor Rate in all cases).

      Fund

      Investment Return (per annum)

      Conservative Fund

      4.4%

      Moderate Fund

      4.9%

      Balanced Fund

      5.4%

      Growth Fund

      6.1%

    10. Once you reach age 65 we assume you review your fund choice and make the decisions set out in the below table.

      Your Fund Choice

      Assumed Fund Choice in Retirement

      Conservative Fund

      Conservative Fund

      Moderate Fund

      Conservative Fund

      Balanced Fund

      Moderate Fund

      Growth Fund

      Balanced Fund

    11. The returns for each fund are based on our long-term average return projections. Actual returns each year for each fund will likely be different to these assumed returns. Please note that funds with a higher exposure to growth assets (such as shares and property) are expected to have higher average returns over the long term.  However, they are also likely to have returns that fluctuate year to year by a greater amount.
    12. Cash flows (such as contributions into KiwiSaver) occur half way through the year.
    13. The income in retirement is calculated on the following basis:
      • a withdrawal of the annual income amount is made at the beginning of each year for 25 years (i.e. from age 65 to age 90 – your balance is assumed to reach $0 at age 90);
      • the income amount is increased each year to offset the impact of inflation (so stays the same in real terms);
      • Your account earns investment returns each year (after fees and taxes using the current applicable prescribed investor rate) based on an assumed fund choice in retirement stated above.
    14. If you select “Include NZ Super”, the retirement income will include the weekly rate after tax, assuming an 'M' tax code, rounded to the nearest dollar, as at today’s date. The calculator assumes you have no other taxable income other than NZ Super.
    15. The NZ Super amount shown is the rate for one person – so if Couple is selected the NZ Super amount will show the payment to you rather than the total payment to both people in the couple.
    16. Assumed rate of inflation is 2% per annum.