The Public Sector Superannuation Scheme (PSS) is a defined benefit superannuation fund that covers Australian federal government employees who joined before July 1, 2005. If you’re a PSS member, your retirement benefit is calculated by formula — not dependent on investment returns — and it can be one of the most generous retirement arrangements available to any Australian employee.
Understanding how PSS works, and the choices you’ll face at retirement, can make a substantial difference to your outcome.

What Is the PSS and Who Is Covered?
The PSS is administered by Commonwealth Superannuation Corporation (CSC) and covers permanent APS (Australian Public Service) employees and Members of Parliament who became members before July 1, 2005. New APS employees are now covered by PSSap (Public Sector Superannuation accumulation plan), an accumulation fund, rather than the defined benefit PSS.
PSS is closed to new members but remains active for existing members — and with an estimated 130,000+ active and deferred members, it continues to be a significant scheme. If you’re a current PSS member, your defined benefit entitlement is among the most valuable retirement assets you hold.
How Your PSS Benefit Is Calculated
Your PSS benefit is calculated based on your Accumulated Benefit (AB) at retirement, which combines:
- Member contributions component: your own contributions accumulated with earnings
- Employer contribution component: employer-funded component based on your salary and years of service
- Productivity contributions: the superannuation guarantee equivalent contributions
The employer-funded component — the defined benefit component — is calculated using this formula:
Employer Benefit = Benefit Multiple × Final Average Salary
The Benefit Multiple increases with each year of service and the average member contribution rate. Contributing at a higher rate (e.g., 10% vs. 5%) generates a higher Benefit Multiple — this is one of the most direct ways PSS members can increase their final benefit.
PSS Contribution Rates
PSS members can contribute between 2% and 10% of their salary. The key feature: higher member contributions result in a higher Benefit Multiple, which directly increases the employer-funded component of your benefit.
This creates a meaningful return on higher contributions — your extra contributions don’t just accumulate in your own account; they multiply the employer’s defined benefit component. This is fundamentally different from most accumulation funds where your employer contributes a set percentage regardless of what you contribute.
💡 If you haven’t reviewed your contribution rate: Contributing at a lower rate to save cash flow may be costing you significantly more in lost Benefit Multiple at retirement. Use CSC’s online modeler to compare outcomes at different contribution rates before you decide.
Pension vs. Lump Sum — The Decision That Defines Your Retirement
At retirement, PSS members generally have the choice of taking benefits as:
- A pension (indexed lifetime income stream) — paid fortnightly for life, indexed to CPI quarterly. Provides certainty, longevity protection, and inflation adjustment. The PSS pension is a rare, genuinely valuable defined benefit — indexed pensions of this type are no longer available to new employees anywhere in the Australian public sector.
- A lump sum — the commuted value of the pension. May be rolled into an accumulation super fund, allocated pension (account-based pension), or used directly.
- A combination — most PSS rules allow commuting a portion of the benefit while retaining a partial pension.
The pension vs. lump sum decision is genuinely complex and depends on your health, partner’s circumstances, estate planning goals, tax position, and other income. The indexed PSS pension is difficult to replicate through commercial means — replacing it at equivalent cost with a commercial annuity typically requires a substantially larger lump sum than the commuted value offered. Many financial advisors recommend retaining the pension (or most of it) for this reason.
Get professional advice from a financial advisor experienced in PSS before making this decision. It is permanent and significant.
Tax Treatment of PSS Benefits
PSS benefits include both taxable and tax-free components:
- Benefits taken after age 60 from a taxed source are generally tax-free
- The PSS has an untaxed element (the defined benefit component funded by the employer) — this component remains taxable even after age 60, though a 10% tax offset applies
- Large lump sums may push you into a higher tax bracket — spreading the timing of withdrawals and combining with other retirement income planning matters
Tax treatment of PSS is more complex than most accumulation super funds due to the untaxed component. Engaging a tax advisor familiar with defined benefit super before accessing benefits avoids costly surprises.
How to Maximize Your PSS Outcome
- Contribute at the maximum 10% rate if financially feasible — the Benefit Multiple return on higher contributions is exceptional
- Understand your Final Average Salary calculation — some schemes use the last 3 years, some use the last year. Know which applies and maximize accordingly in your final years
- Don’t resign during the final year before your intended retirement date unless necessary — benefit calculations can be affected
- Get personalized retirement counseling from CSC before setting your retirement date — it’s available to members and the tailored projections are far more accurate than general guidance
- Consider the full pension option seriously — an indexed lifetime pension is an extremely scarce benefit in modern Australia
Frequently Asked Questions
Q: What happens to my PSS benefit if I leave the APS before retirement age?
You can leave your benefit preserved in the PSS until you reach a condition of release (typically preservation age, currently 60), or resign and take a refund/rollover. Preserved benefits continue to attract earnings, but you stop accruing service credit. Get a benefit estimate before resigning to understand the full long-term cost of leaving early.
Q: Is there a survivor benefit if I die while still in the PSS?
Yes — PSS provides death and invalidity benefits for members and their dependants. On death in service, a benefit is payable to a spouse, children, or other nominated dependants. The amount depends on your circumstances and the nature of the benefit. Review your beneficiary nomination with CSC to ensure it reflects your current wishes.