Pension opt-outs and re-enrolment in Australia
Reviewed by Mellow Editorial Team, HR & payroll content team
Australian law does not use the term "pension opt-out" — but the underlying concept exists. Employees can choose their own superannuation fund, and in limited circumstances a worker classified as a contractor may not attract the Superannuation Guarantee at all. What employers must manage is fund choice, stapling, and the cyclical re-contribution obligations that arise when those rules change.
How the Superannuation Guarantee works for employers
From 2026, the Superannuation Guarantee (SG) sits at 12% of ordinary time earnings. You must pay that amount to a complying superannuation fund for every eligible employee, on top of their gross wages. There is no mechanism for an employee to simply opt out of receiving super contributions the way a UK worker can opt out of auto-enrolment — the obligation sits with the employer, and the employee cannot waive it.
What can vary is where the money goes. Employees have the right to nominate their preferred fund. If they do not nominate one, you have a different obligation depending on whether they have a previously stapled fund.
The stapled fund process
Since November 2021, the Australian Taxation Office (ATO) has operated a stapled fund system. A "stapled fund" is an existing super account that follows the employee from job to job, rather than a new account being opened with each employer's default fund.
The process works like this:
1. Offer the new employee a Standard Choice Form. Give them at least 28 days to nominate a fund.
2. If they nominate a fund, pay contributions there.
3. If they do not nominate a fund within the window, request their stapled fund details from the ATO through the Online services for business portal before you start contributing.
4. If the ATO returns a stapled fund, use that fund.
5. Only if the ATO confirms there is no stapled fund do you fall back to your employer default fund (which must itself be a complying fund, and for most awards a MySuper-authorised product).
Getting this sequence wrong — for example, paying straight into your default fund without checking for a staple — can result in a choice liability. That means you remain liable for any shortfall or administrative cost even if you have paid the right dollar amount to the wrong fund.
HECS/HELP and other deductions that interact with payroll
Employees cannot opt out of HECS/HELP repayments through payroll. If an employee has a study debt, they are required to notify you on their Tax File Number declaration or through myGov. You then withhold additional amounts from their pay on a banded scale set by the ATO each income year, on top of ordinary PAYG income tax withholding and the 2% Medicare levy. The repayment amounts are tied to income bands, not a flat rate, so they adjust automatically as earnings change. The employee does not control the timing — repayments run through every pay cycle until the debt is cleared or their income falls below the threshold.
Re-contribution obligations: when circumstances change
There is no formal "re-enrolment" cycle in Australia the way there is in the UK, where employers must re-enrol opted-out workers every three years. Instead, re-contribution obligations arise from specific trigger events:
- A worker reclassified from contractor to employee. If a worker you previously treated as a contractor is found to be, or reclassifies as, an employee, the SG obligation applies from that point forward — and potentially retrospectively, depending on the circumstances of the engagement.
- An employee moving above the income threshold. Currently there is no minimum monthly earnings threshold for super — it was removed from 1 July 2022 — so contributions are owed regardless of how little an employee earns.
- An employee returning from unpaid leave. Ordinary time earnings during unpaid leave are zero, so contributions are zero. When they return to paid work, contributions resume at the standard rate on whatever ordinary time earnings they receive.
- Award or contract changes. If an enterprise agreement or modern award is varied to change the definition of ordinary time earnings, your SG base changes with it.
Reporting and timing obligations
Every pay event must be reported to the ATO through Single Touch Payroll (STP) at or before the time of payment. Super contributions themselves are typically due quarterly, though many payroll systems remit more frequently. The STP finalisation deadline is 14 July after the end of each financial year — for the 2025/26 year that means by 14 July 2026.
Missed or late super contributions trigger the Superannuation Guarantee Charge (SGC), which is not tax-deductible and includes a nominal interest component and an administration levy. The SGC is calculated on total salary and wages, a broader base than ordinary time earnings, so the penalty can exceed the original contribution shortfall.
If you are managing employees across multiple countries alongside your Australian headcount, understanding how each jurisdiction handles mandatory retirement contributions differently is worth mapping early — how Mellow runs payroll across six countries on one platform covers that comparison in practical terms.
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