KiwiSaver Retirement Calculator

Quick answer: Your KiwiSaver balance at 65 grows from your contribution (3.5%, 4%, 6%, 8% or 10% of pay), your employer's minimum 3.5%, the government contribution (up to $260.72 a year) and investment returns. See projections in the balance projection table, or enter your details below.

This New Zealand specific KiwiSaver calculator will allow you to accurately ascertain what your likely retirement savings fund will be at your point of retirement. This tool works to take into account many of the major items that will impact the KiwiSaver balance, as well as giving the flexibility to use the KiwiSaver balance for purchasing your first home, or by switching funds up to two times to adapt to your life stages and to consolidate and secure the balance. Within this KiwiSaver calculator, you can see the respective breakdown of the components of the final balance, and where the respective contributions came from. In addition to this, this KiwiSaver calculator allows a breakdown structure for each respective year and also by every month across the lifetime of the savings scheme. This will allow much greater transparency over the way the balances change over time. The Calculate.co.nz KiwiSaver calculator is the only calculator in New Zealand to allow the user to calculate the impact of a fund change and a first home purchase in the same calculation. Use this KiwiSaver retirement calculator to project your balance and plan for the retirement you want.

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Updated April 2026  Current rates and legislation applied.

BASIC INFORMATION

What is your current KiwiSaver Balance?

$

What is your date of birth?

On your next birthday, you will be:

At which age do you think you will retire?

You have this many rounded years until you retire at

You have this many rounded months until you retire at

CONTRIBUTION AND FUTURE EXPECTATIONS

What is your current annual income before tax?

$

What is your anticipated annual income growth per year %?

%

What is your current employee KiwiSaver contribution level?

%

What is your current employer KiwiSaver contribution level?

%

What level of inflation do you want to apply?

%

OPTIONAL CONTRIBUTIONS

What level of voluntary contribution will you be adding?

$

At which frequency would you like to add the voluntary contribution?

FUND SPECIFICS

Which KiwiSaver fund would you like to use?

Return rate applied across balance in Cash fund:

%

What is your KiwiSaver Prescribed Investor Tax Rate (PIR)?

%

Yearly KiwiSaver account management fee percentage

%

NZ Government contribution per year:

$

FIRST HOME BUYER?

Will you use your KiwiSaver balance to purchase a property?

TACTICAL FUND CHANGE BEFORE RETIREMENT?

Will you change your fund type before retirement?

OVERALL SUMMARY
Summary:
KiwiSaver absolute balance at retirement age of
$
Present value of future KiwiSaver annuity balance after years of % inflation
$
Average gross investment return rate acquired over the years
%
Average net investment return rate acquired after tax
%

COMPONENT BREAKDOWN
KiwiSaver Contribution Summary from age to age
Additions:
$
KiwiSaver opening balance
$

Previous balance related compound interest gains
$
Tax on previous balance related compound interest gains
$
Net compound interest contributions
$

Total employer and employee contributions
$
Month specific investment gains on month specific contributions
$
Month specific tax on month specific contributions
$
Net employer and employee contributions
$

Total employee additional contribution
$
Month specific investment gains on month specific contributions
$
Month specific tax on month specific contributions
$
Net employee additional contribution
$

Total Government contribution
$
Month specific investment gains on month specific contributions
$
Month specific tax on month specific contributions
$
Net Government contribution
$
Total Additions:
$

Subtractions:
$
Total balance taken and used for KiwiSaver first home buyer scheme
$
Total KiwiSaver account management fees paid
$
Total Subtractions:
$


Yearly Summary

Age Start of year Balance Fund Type First Home Purchase Balance Change

KiwiSaver End of Month Balance

Month and Age End of Month Balance Government Contribution Month First Home Purchase Balance Change

KiwSaver Calculator Methodology:

For each period (month), the following components of the calculation are taken into consideration:
- the fund types available for this KiwiSaver and their respective expected return on investment rates are as follows: Cash 1.00%, Conservative 2.50%, Balanced 4.00% and Growth 7.00%.
- the specific return on investment rate by month is used in each calculation to adjust for the ability for the user to change the fund at any age.
- the specific salary and the expected increase is used in each calculation. This is adjusted after every year to the new salary as expected by the user.
- the compounding of the respective investment gains occurs at the month level, as seen in the month by month KiwiSaver balance schedule.

a. The opening balance of the month, which contributes to the previous balance calculations for the compound interest investment gains and investment tax to provide the previous balance adjustment moving forward.
b. The employment additions, which relates to the employee and employer contributions. Tax is then applied to the employer contribution value only before the net add from the employment addition is calculated. From there, the month specific investment gains and investment tax are calculated to provide the KiwiSaver contribution balance moving forward.
c. The employee additional contribution, which relates to the optional regular top-up from the user. From the per period addition the month specific investment gains and investment tax are calculated to provide the additional contribution balance moving forward.
d. The government contribution, which is up to $260.72 per year for eligible members who contribute during the year, and is only available when the member’s annual taxable income for that year is $180,000 or less. e. The account fees as declared are removed for every period.
f. The first home buyer reset trigger is applied if the month is assigned as the period of a balance change for the first home purchase. This resets to the balance to $1,000.

The formula for calculating the balance at the end of each respective period throughout the saving scheme is:
- If not a flagged period for first home buyer reset: (a. previous period balance + investment gains) + (b. employment contribution for period) + (c. employee additional contribution for period) + (d. government contribution for period [if any]) - (e. account fees for period)
- If a flagged period for first home buyer reset: (a. previous period balance reset to $1000 + investment gains) + (b. employment contribution for period) + (c. employee additional contribution for period) + (d. government contribution for period [if any]) - (e. account fees for period)


NOTE: this KiwiSaver calculator is meant to be used as a guide only.

Who this calculator is for

This calculator is for KiwiSaver members projecting their balance at retirement, first-home savers estimating their deposit, and anyone deciding on a contribution rate or weighing up the effect of fees and returns over time.

What this calculator assumes

  • The contribution rate, salary, employer rate and assumed annual return you enter.
  • Government and compulsory employer contributions follow current KiwiSaver rules.
  • The assumed return is an estimate, not a guarantee; real returns rise and fall.
  • Tax and fees vary by fund and your PIR. Projections are indicative, not advice.

Related calculators

Official NZ sources

This calculator is built from primary New Zealand sources. Always confirm current figures against the official source for your situation:

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