What Is a Defined Benefit Pension?

A defined benefit pension is a superannuation income stream that pays a set amount based on a formula rather than an account balance. The formula typically considers your final average salary, years of service, and a accrual rate. Common schemes include the Commonwealth Superannuation Scheme (CSS), Public Sector Superannuation Scheme (PSS), military superannuation (MSBS and DFRDB), university super schemes (UniSuper), and various state government schemes.

Defined benefit pensions differ significantly from accumulation-style super accounts. In an accumulation fund, your retirement income depends on your account balance and investment returns. In a defined benefit scheme, the employer guarantees a specific pension amount regardless of investment performance. This guarantee makes defined benefit pensions extremely valuable — and their tax treatment reflects this unique structure.

The ATO divides defined benefit pensions into two categories: taxed schemes and untaxed schemes. Taxed schemes are those where the super fund has already paid contributions tax (15%) on the underlying funds. Untaxed schemes have not paid contributions tax, so the pension income receives different tax treatment when paid out.

Most Commonwealth and state government defined benefit schemes are untaxed schemes. Military super schemes are a mix — MSBS is a taxed scheme while DFRDB (for older military personnel) is untaxed. Private sector defined benefit schemes are almost always taxed schemes. Use our superannuation calculator to compare defined benefit pensions with accumulation super.

Defined Benefit Pension Tax Rates by Age

Age is the single most important factor in defined benefit pension taxation. Australians aged 60 and over receive their defined benefit pension completely tax-free — both the taxable and tax-free components. This is a significant advantage that applies regardless of whether the pension comes from a taxed or untaxed scheme.

For recipients under 60, the tax treatment depends on whether the pension comes from a taxed or untaxed source. The pension is split into a tax-free component and a taxable component. The tax-free component (typically representing the member's own contributions) is never taxed.

The 15% tax offset on taxed scheme pensions is designed to compensate for the contributions tax already paid. The 10% offset on untaxed schemes is lower because no contributions tax was paid. For recipients under 60, these offsets significantly reduce the effective tax rate on the pension income. Check our income tax calculator to see the effect of these offsets on your total tax position.

How Defined Benefit Pensions Interact with the Tax-Free Threshold

For under-60 recipients receiving a taxed scheme pension, the first $18,200 of total income (including the taxable component) is tax-free due to the tax-free threshold. The 15% tax offset then reduces the remaining tax. This means a pension of $18,200 or less from a taxed scheme is effectively tax-free even for under-60s.

For untaxed scheme pensions under 60, the tax-free threshold still applies, but the 10% offset only reduces tax on the untaxed element. The untaxed element includes the employer-financed portion of the pension, which typically makes up the majority of the payment.

Let's look at a practical example. A 55-year-old receives a defined benefit pension of $60,000 from a taxed scheme. The taxable component is $55,000 (after removing the tax-free component of $5,000). Add this to any other income. The first $18,200 is tax-free, the next $26,800 (up to $45,000) is taxed at 16%, and so on. The 15% offset then reduces the tax payable by 15% of the taxable component.

Without other income, the total tax on this $60,000 taxed-scheme pension would be roughly $3,500 after the offset — an effective tax rate of about 5.8%. This is significantly lower than the rate an accumulation super pension recipient would pay. Understand how the Medicare levy applies to your pension income in our detailed guide.

Defined Benefit Super Caps and Contribution Rules

Defined benefit members have special concessional contribution rules. Unlike accumulation fund members who have a $30,000 annual cap (FY 2025-26), defined benefit members have their contributions measured using a "notional taxed contribution" (NTC) amount set by the fund's actuary. This NTC reflects the value of the benefit being accrued rather than actual cash contributions.

If your NTC exceeds $30,000, the excess is still within the concessional cap but may trigger an excess benefits tax. The ATO calculates this using a special formula that essentially taxes the excess at your marginal rate minus 15%. This is different from the excess concessional contributions rules that apply to accumulation fund members.

The Division 293 tax (an additional 15% on concessional contributions) applies equally to defined benefit and accumulation members with income over $250,000. For defined benefit members, the Division 293 amount is calculated based on the NTC rather than actual contributions. Use our salary sacrifice calculator to compare strategies if you have both defined benefit and accumulation super.

Defined Benefit Pensions and the Medicare Levy Surcharge

Defined benefit pension income counts towards the income threshold for the Medicare Levy Surcharge (MLS). If your income as a single person exceeds $101,000 (or $202,000 as a family), you may need to pay the MLS unless you have appropriate private hospital cover.

For defined benefit recipients aged 60 and over, while the pension income itself is tax-free, it still counts as income for MLS purposes. This is an important consideration because the pension income can push you over the threshold even though no tax is payable on the pension itself.

The MLS is only relevant if you do not have hospital cover. Many defined benefit pension recipients are eligible for Department of Veterans' Affairs (DVA) gold or white cards, which count as an exemption from the MLS. DVA card holders do not need to pay the MLS or hold private hospital insurance.

If you plan to take a defined benefit pension before age 60 and have other income sources, the MLS can add an extra 1% to 1.5% tax on your total income. This is on top of the marginal income tax and the 2% standard Medicare levy. Review the Medicare Levy Surcharge calculator for your specific situation.

Defined Benefit vs Accumulation: Tax Comparison

The tax advantages of defined benefit pensions make them substantially more valuable than accumulation accounts for retirement. A defined benefit pension paying $70,000 per year to someone aged 60+ is completely tax-free. An accumulation account paying the same $70,000 would be tax-free for over-60s as well (since all super income streams are tax-free after 60).

The real advantage appears before age 60. An under-60 retiree with a defined benefit pension gets the 15% or 10% tax offset. An accumulation account holder under 60 has no such offset — their pension is simply taxed at marginal rates with no special concession (though they may have a tax-free component).

The other major difference is contribution limits. Defined benefit members often accrue significantly more than the $30,000 annual cap in notional value, especially high-income earners in senior government roles. The excess is taxed differently than it would be in an accumulation account.

For younger defined benefit members still working, the value of future pension accrual can affect the transfer balance cap ($1.9 million in FY 2025-26). Defined benefit pensions use a special conversion factor (typically 16× the annual pension amount) to calculate how much cap space your pension uses. Understand your superannuation position before making retirement timing decisions.

Frequently Asked Questions

Is my defined benefit pension indexed for inflation?

Most Australian defined benefit pensions are indexed annually to the Consumer Price Index (CPI). Commonwealth schemes like CSS and PSS index pensions in line with CPI. Military DFRDB and MSBS also provide CPI indexation. This protects the purchasing power of your pension, though the indexation itself may increase your taxable amount if you are under 60.

Can I commute (cash out) my defined benefit pension?

Most defined benefit schemes allow you to commute a portion of your pension into a lump sum. The maximum commutation is typically 50% of your pension entitlement. The lump sum is subject to different tax rules — the tax-free component is not taxed, the taxed element is tax-free after 60, and the untaxed element is taxed at up to 30% for amounts over the untaxed plan cap.

What happens to my defined benefit pension if I die?

Defined benefit pensions typically include generous death benefits. A reversionary beneficiary (usually your spouse) continues receiving a portion of the pension — often between 50% and 67%. Death benefit pensions paid to dependants under 60 are taxed at marginal rates with a 15% offset. Dependants over 60 receive the pension tax-free.

Do defined benefit pensions affect Centrelink benefits?

Yes, defined benefit pension income counts under both the Centrelink income test and assets test. The pension income is assessed as income, and the pension's value (calculated using a conversion factor) counts as an asset. This can reduce or eliminate Age Pension eligibility for defined benefit recipients with substantial pensions.

Can I transfer my defined benefit pension to another super fund?

Generally no. Defined benefit pensions cannot be transferred to another super fund because they are not account-based. However, if you commute your pension to a lump sum, you can roll that amount into an accumulation account or an account-based pension. This decision should factor in the loss of inflation indexing and any guarantees.

Are defined benefit pensions subject to the transfer balance cap?

Yes. When you start a defined benefit pension, it counts against your $1.9 million transfer balance cap. The value is calculated as 16 times the annual pension amount. If your pension exceeds the cap, you must either commute the excess to an accumulation account or pay additional tax on the excess transfer balance.