KiwiSaver and Australian superannuation are both workplace retirement savings schemes, but Australian super is compulsory while KiwiSaver uses automatic enrolment with an opt-out window. Here’s how they differ on contributions, tax and access age.
At a Glance: KiwiSaver vs Australian Super
| Feature | KiwiSaver (NZ) | Australian Superannuation |
|---|---|---|
| Enrolment | Auto-enrolment (new employees) | Compulsory (can’t opt out) |
| Opt-out | Yes if automatically enrolled, from day 14 to day 56 of a new job | Not for most employees |
| Employer contribution | 3.5% minimum | At least 12% of qualifying earnings, up to a set limit (final legislated rate, reached 1 July 2025) |
| Employee contribution | 3.5%, 4%, 6%, 8%, or 10% | Generally voluntary (above Super) |
| Government contribution | Up to $260.72/year | Australia has a co-contribution for low to middle income earners who make after-tax contributions |
| Access age | 65 (the age of eligibility for NZ Super) | From 60 if retired or leaving a job (preservation age is 55 to 60, depending on birth date); full access at 65 |
| Tax on contributions | Taxed at source (PAYE/ESCT) | Generally 15% tax on employer contributions, paid by the fund |
| Tax on returns | In a PIE scheme, PIE tax at your PIR (10.5% to 28%) | Up to 15% |
| Early access | Limited exceptions | Limited, under Australia’s own rules |
Employer Contribution Rate — The Biggest Difference
The most striking difference: Australian employers contribute at least 12% of qualifying earnings (up to a set limit) to super (the Superannuation Guarantee reached its final legislated rate on 1 July 2025, after phased rises from 11% in 2023), compared to a 3.5% employer minimum in New Zealand (raised from 3% on 1 April 2026). The employee side is set out in KiwiSaver contribution rates.
For a $70,000 salary:
| Country | Annual employer retirement contribution |
|---|---|
| NZ (KiwiSaver minimum) | $2,450/year |
| Australia (Super 12%) | $8,400/year |
At a constant $70,000 salary, the gap in employer contributions alone, before any investment returns, is $5,950 a year, or about $178,500 over a 30-year career.
Employee Contribution and Opt-Out
In Australia, most employees cannot opt out of super: employer contributions are compulsory. Employee salary sacrifice into super is optional.
In NZ, employees who were automatically enrolled can opt out of KiwiSaver from day 14 to day 56 after starting a job. Employee contributions (3.5%+) stop in that case, but so does the employer’s 3.5% obligation.
The Government Contribution
KiwiSaver has a government contribution: the government contributes up to $260.72/year for members contributing at least $1,042.86/year.
Australia has a different scheme: if you’re a low to middle-income earner and make after-tax super contributions, the government may add a co-contribution (Moneysmart). KiwiSaver’s government contribution is available to members aged 16 to 65 with taxable income of $180,000 or less.
Tax Treatment
NZ KiwiSaver: Your own contributions are a percentage of your before-tax pay, and employer contributions are taxed (ESCT) when they are paid in. In a PIE scheme, which includes all the KiwiSaver default schemes, returns are taxed at your PIR (10.5%, 17.5%, or 28%). Withdrawals at 65 are tax-free.
Australian super: Employer (concessional) contributions are generally taxed at 15% entering the fund (higher earners can pay an extra 15% Division 293 tax, and people earning $37,000 or less may get it refunded through the low income super tax offset). Investment earnings in an accumulation account are taxed at up to 15%. Withdrawals from age 60 are generally tax-free.
The 15% contributions tax may be lower than the income tax rate many people pay, and people earning $37,000 or less may get it refunded through the low income super tax offset.
Access Age
| Country | Earliest access (preservation age) | Full access |
|---|---|---|
| NZ | 65 (the age of eligibility for NZ Super) | 65 |
| Australia | 55 to 60, depending on when you were born | 65 |
Moneysmart says you can access Australian super from 60 if you’re retired or leave a job, and from 65 whether you’re still working or not. NZ’s access age is 65 with limited early exceptions.
Moving Between NZ and Australia
A trans-Tasman portability arrangement lets you transfer KiwiSaver savings to an Australian super fund when you move to Australia permanently, and Australian super into KiwiSaver when you move to New Zealand, fund to fund rather than as cash. The rules for each direction, including the Australian-sourced portion’s different access rules, are in transferring KiwiSaver to Australia and Australian super to KiwiSaver.
Summary of the Differences
| KiwiSaver | Australian super | |
|---|---|---|
| Membership | Automatic enrolment with an opt-out window | Compulsory |
| Main source of contributions | Employee contributions (from 3.5%) and employer contributions (at least 3.5%) | Employer contributions of at least 12% of qualifying earnings |
| Government contribution | Up to $260.72 a year | A co-contribution for low to middle income earners who make after-tax contributions |
| Tax | Employee contributions from taxed pay and employer contributions taxed through ESCT; returns taxed at your PIR | Most employer contributions taxed at 15% in the fund; fund earnings taxed at up to 15% |
| Access | 65, with limited early exceptions including a first home withdrawal | From 60 if retired or leaving a job (preservation age is 55 to 60, depending on birth date); unrestricted from 65 |
Higher compulsory employer contributions mean Australian balances build faster for the same salary, while KiwiSaver adds a government contribution and the first home withdrawal, and lets automatically enrolled employees opt out.