How this calculator works

The retirement projections in this calculator are based on assumptions set by the Government and are designed for use by people between the ages of 18 and 64. A summary of the Government’s assumptions is provided below, however, further details can be found on the Financial Markets Authority website at this link.

Assumptions used:

  • The ‘amount saved’ value is in today’s dollars so you can compare with the cost of living today. To convert to today’s dollars the projections are adjusted for inflation, and the inflation assumption is currently 2% per annum.
  • Salary and wages, and any regular voluntary contributions, are assumed to increase by 3.5% each year.
  • Regular voluntary contributions will continue to be made each year until the age of 65.
  • No savings suspensions are taken.
  • No amounts are withdrawn for first home purchase (unless this calculation option is selected) or financial hardship, or (for the purpose of estimating the weekly income amount) as a lump sum after age 65.
  • You receive the maximum Government contribution of $521 as at the end of each KiwiSaver year which runs from 1 July to 30 June. (to understand how the Government contribution works, see our FAQ - Qualifying for Government contributions)
  • You remain in your chosen fund until age 65. The assumed rate of return for the fund selected is based on which fund type it aligns with, as shown in the table below. The assumed rates of return are after tax and after fees.
  • After 65, the balance will earn an assumed 2.5% rate of return each year (after fees and tax).
  • For the income amount, you will make regular withdrawals from retirement until age 90, when your balance reaches zero.
  • NZ Superannuation calculation based on the single living alone rate of $496 per week with tax code M (rounded to the nearest dollar). For different tax codes please visit Work and income - NZ Super and Veteran's Pension payment rates at this link.

Return after fees and tax have been deducted

Type of Fund

Simplicity KiwiSaver Scheme Fund*

Assumed rate of return (after fees and tax)


Defensive Fund



Conservative Fund



Balanced Fund or Default Fund



Growth Fund



High Growth Fund


KiwiSaver Fees Calculator

Fees really matter. This calculator shows what fees you pay each year and how that compares to other KiwiSaver providers.

Where in the world is my money?

See exactly where your KiwiSaver savings will be invested. We’re all about transparency, because it’s your money. %)

Fund Selector

Choosing your fund type is an important decision that will impact your long term returns.