Defined Benefit Super Calculator — Australia 2025-26
Understand what your defined benefit scheme will pay you.
Estimate your defined benefit super pension at retirement. Compare CSS, PSS, QSuper DB, StatePlus, UniSuper DB, and general schemes. See how your DB pension compares to an equivalent accumulation fund — and whether to take the lump sum or keep the pension.
Estimates only. DB scheme rules vary. Verify with your scheme’s member statement and seek financial advice before making commutation decisions.
For the same career and salary, a defined benefit pension typically delivers 2–3 times the retirement income of an equivalent accumulation super fund.
Three structural advantages: (1) No investment risk — guaranteed regardless of markets. (2) No longevity risk — paid for life regardless of how long you live. (3) Employer bears the funding shortfall — if returns fall short, the government or employer tops it up, not you.
A DB fund with a $60,000/yr obligation to a member living 25 years in retirement is committing to a $1.5M+ liability (in today’s dollars, before CPI). The employer funds the difference if contributions and investment returns fall short. This is why most private sector DB schemes closed — the employer liability became unsustainable.
A DB pension reduces Age Pension eligibility dollar-for-dollar under the income test (above the free area). If your DB pension is high enough, you may receive little or no Age Pension. However, you also have no super balance to worry about under the assets test. Get Centrelink advice specific to your scheme.
Most DB schemes allow you to commute some or all of your pension to a lump sum at a fixed multiplier (×12 to ×14). This is one of the most consequential — and irreversible — financial decisions you will make.
If you take the lump sum (×12) and invest at 5% pa, you need to live more than approximately 15 years in retirement to match the cumulative pension income. The average retirement lasts 20–25 years. For most people, the pension wins — and the longer you live, the more it wins.
If you have a serious health condition limiting life expectancy. If you have significant estate planning needs and no reversionary beneficiary. If you need capital for a specific purpose (e.g. paying off a mortgage). Otherwise, the pension almost always wins for healthy, long-lived people.
Many schemes allow you to commute a portion (commonly 25–50%) and keep the remainder as pension. This can be a sensible middle path: take a lump sum for flexibility (pay off debt, fund a purchase) while retaining the inflation-protected income stream. Model this in Detailed mode.
If you are still working, there are steps you can take now to maximise your defined benefit entitlement.
In most DB schemes, every additional year of service adds the accrual rate to your replacement income. Going from 24 to 25 years adds 2 percentage points of final salary — permanently, for life. The last few years before full eligibility are often the most valuable.
Final salary DB schemes use your salary at (or near) retirement. Taking a promotion or higher-paying role in your final years significantly increases your lifetime pension. A $10,000 salary increase in year 25 adds $200/yr to a 2% accrual pension — for the rest of your life.
The decision to commute, whether to make voluntary contributions, and how to structure your benefits is complex and scheme-specific. It is worth paying for independent financial advice (not from your scheme) before you retire. The decision is irreversible and the stakes are typically $500,000–$1M+.
How defined benefit super pensions are calculated in Australia
The defined benefit formula
Annual pension = Final salary × Years of service × Accrual rate. This formula is simple but the inputs require care: “final salary” may mean your last year, an average of your last 3 years, or your highest average period — depending on your scheme rules. Always check your member statement for the exact definition.
| Example | Pension calculation |
|---|---|
| $100k salary · 25yr · 2% | $100,000 × 25 × 0.02 = $50,000/yr (50% replacement) → Lump sum: $600,000 at ×12 multiplier |
| $100k salary · 30yr · 2% | $100,000 × 30 × 0.02 = $60,000/yr (60% replacement) → Lump sum: $720,000 at ×12 multiplier |
| $120k salary · 35yr · 1.67% (CSS) | $120,000 × 35 × 0.0167 = $70,140/yr → CSS lump sum: $982,000 at ×14 multiplier |
CSS, PSS, QSuper DB, StatePlus, UniSuper — scheme details and accrual rates
| Scheme | Key details |
|---|---|
| CSS (Commonwealth) | 1.67% accrual · ×14 lump sum · Closed 1990 → Most generous DB scheme ever offered in Australia. Member contribution 5%. |
| PSS (Commonwealth) | 2% accrual · ×12 lump sum · Closed 2005 → Member contribution 0–10% (affects benefit). Many still active members. |
| QSuper DB (Qld Govt) | 2% accrual · ×12 lump sum · Qld public service → Closed to new members. Final salary based on average of last 3 years. |
| StatePlus (NSW Govt) | 1.5–2% accrual · ×13 lump sum · NSW public service → Several tiers. Check your member statement for exact multiplier. |
| UniSuper DB | 2% accrual · ×12 lump sum · Higher education sector → Closed to new members in most institutions. CPI-indexed. |
| State teacher schemes | 2% accrual · ×12 lump sum · Varies by state → Most state teacher DB schemes closed to new members post-2000. |
Should you commute your DB pension to a lump sum?
The break-even analysis
The lump sum is calculated as Annual pension × multiplier (typically ×12). If you take the lump sum and invest at a real return of 4–5% per annum, the break-even point is approximately 12–15 years of retirement. Beyond that, the pension produces more cumulative income.
| Scenario | Which wins & why |
|---|---|
| Healthy, family longevity | Pension almost always wins → Long retirement amplifies the pension advantage |
| Significant health concerns | Lump sum may be better → If life expectancy is under 12–15 years in retirement |
| Need capital (pay off mortgage) | Partial commutation (25–50%) → Take what you need, keep the rest as pension |
| Estate planning priority | Lump sum preferred → Pension may expire or reduce at death; lump sum passes to estate |
This decision is irreversible. Once made, you cannot change it. Get independent financial advice from an adviser who is not affiliated with your scheme.
Income tax and super tax on defined benefit pensions and lump sums
Age 60 and over (from a taxed fund)
If you are aged 60 or over and your DB pension is from a taxed super fund (most Australian DB schemes), both the pension and any commuted lump sum are completely tax-free. This is one of the most valuable features of Australian super law.
Under age 60
The pension is included in your assessable income but you receive a 15% tax offset on the taxable component. Lump sums are subject to the super tax treatment: the first $235,000 (2025-26 low rate cap) is tax-free; amounts above this are taxed at 17% (if from a taxed fund).
| Situation | Tax treatment |
|---|---|
| Pension, age 60+, taxed fund | Tax-free → No tax on any amount |
| Pension, under 60, taxed fund | Taxed as income with 15% offset → Significantly reduced effective tax rate |
| Lump sum, age 60+, taxed fund | Tax-free → No tax on any amount |
| Lump sum, under 60 | First $235k tax-free; above that 17% → 2025-26 low rate cap. Indexation applies annually. |
❓ Frequently asked Frequently asked questions
How is a defined benefit super pension calculated?
Annual pension = Final salary × Years of service × Accrual rate. For example: $100,000 salary × 30 years × 2% accrual = $60,000/yr pension (60% salary replacement). The CSS uses 1.67% accrual and a ×14 lump sum multiplier. Most state schemes use 2% and ×12. Always verify with your member statement — scheme rules vary.
What happened to defined benefit super in Australia?
Most private sector DB schemes closed in the 1980s–2000s because the employer liability became too costly and unpredictable. DB schemes still operating include: CSS (Commonwealth, closed to new members 1990), PSS (Commonwealth, closed 2005), QSuper DB (Qld government, closed), StatePlus (NSW government), UniSuper DB (higher education, closed in most institutions), and various state teacher and public servant schemes. If you are in one of these, you have a rare and valuable benefit.
Is a defined benefit pension taxed in Australia?
If you are aged 60 or over and the pension is from a taxed super fund, it is completely tax-free. Under age 60, it is taxed as income with a 15% tax offset. Lump sums commuted over age 60 from a taxed fund are also tax-free. The $235,000 low rate cap (2025-26) applies to lump sums for those under 60.
Can I take a lump sum from a defined benefit fund?
Most DB schemes allow commutation — converting some or all of your pension to a lump sum at a fixed multiplier (×12 to ×14). This is irreversible. The break-even point is typically 12–15 years of retirement. If you are in good health with a long expected retirement, keeping the pension almost always produces more cumulative income. Seek independent financial advice before commuting.
What happens to my defined benefit pension when I die?
Most DB schemes include a reversionary pension that continues to your nominated beneficiary (typically spouse or de facto partner) at 67% of your pension on your death. Some schemes offer different reversionary rates. If you commuted to a lump sum, the remaining balance passes to your estate but the pension income ends. This is a critical consideration in the commutation decision, particularly if your partner has limited independent income.
Should I make voluntary contributions to my DB scheme?
It depends on your scheme. In some DB schemes (like PSS), higher member contributions increase the benefit multiplier and directly boost your pension. In others, voluntary contributions go into an accumulation account that is separate from the DB formula and simply add to your total super balance. Check your scheme’s Product Disclosure Statement or member guide for details on how voluntary contributions affect your specific entitlement.