The $131,250 defined benefit income cap: when more pension means more tax

When the 2017 superannuation reforms reshaped how high-balance retirement income is taxed, most attention went to the new transfer balance cap — the limit on how much super can sit in tax-free pension phase. For account-based pensions, the TBC was the central change. For defined benefit pensions — particularly lifetime pensions where there is no underlying balance to "transfer" — the reforms operated differently. The result was the defined benefit income cap (DBIC), a parallel limit that applies to high-value DB pension income.

The DBIC operates not by capping how much can be in pension phase but by limiting the tax concession on the income above a threshold. The threshold is set at the general TBC divided by 16, producing a figure of $100,000 when the TBC was $1.6 million in 2017, and $131,250 in 2026–27 with the TBC at $2.1 million (up from $125,000 in 2025–26, when the TBC was $2.0 million).

For most defined benefit pensioners, the cap is academic — their pensions sit comfortably below the threshold. But for senior public servants, senior military officers, and senior corporate DB scheme recipients with long service and high final-average salaries, the cap is a real tax cost.

Which pensions are affected. The cap applies to capped defined benefit income streams (CDBIS):

• Lifetime pensions (PSS, CSS, MilitarySuper, DFRDB, and corporate DB schemes)
• Lifetime annuities
• Life expectancy pensions
• Market-linked pensions (term-allocated pensions or TAPs)

These are the four CDBIS categories. The cap aggregates across all CDBIS a recipient holds — a retiree receiving $85,000 from a PSS pension and $50,000 from a smaller corporate DB pension has $135,000 of CDBIS income, exceeding the cap by $3,750.

Account-based pensions are not subject to the DBIC. ABP income at age 60+ remains fully tax-free regardless of amount; the TBC limits the balance that can be in pension phase, not the income drawn from it.

The two tax mechanics — taxed source vs untaxed source. When CDBIS income exceeds the cap, the consequence depends on the source of the pension.

Taxed source. Most public-offer corporate DB schemes, and the taxed components of public sector schemes (where applicable), are "taxed source." For income above the cap from a taxed-source pension, the 10% tax offset on the taxable component is denied. Below the cap, the recipient pays tax on the taxable component but receives a 10% offset that reduces the tax payable. Above the cap, the offset is gone — the recipient pays full marginal rates on the excess.

Untaxed source. PSS, CSS, MilitarySuper, and DFRDB largely have untaxed components — these are "untaxed source" pensions. For amounts above the cap from an untaxed source, 50% of the excess is added to the recipient's assessable income at marginal rates. This is on top of the existing taxation framework that applies to untaxed-source pensions.

The mechanics differ; the effect is similar. A senior PSS or CSS pensioner with a $180,000 untaxed-source pension has $48,750 above the cap. Half of that — $24,375 — is added to assessable income at marginal rates. At the top marginal bracket plus Medicare, that is roughly $11,500 in additional tax that would not have applied if the pension were below the cap.

Who is most affected. The cap most affects:

• Senior public servants (SES and equivalent levels) with long tenure in PSS or CSS. A late-career executive at $250,000+ salary, with 30+ years of service, can have a DB pension exceeding $150,000–$200,000 per year.
• Senior military officers in MilitarySuper or DFRDB. Brigadier-equivalent and above, with long service, can be in the same range.
• Senior corporate DB scheme members — fewer in number now (most corporate DB schemes are closed), but historical members of large company schemes with senior service.
• Recipients of multiple CDBIS, where the aggregate exceeds the cap.

The cap does not affect ordinary DB pensions below the threshold, account-based pension recipients, or recipients aged under 60 (different and generally less concessional rules apply at younger ages).

The strategy options — limited but real. The cap is structural. The pension is fixed at retirement, and most DB schemes do not allow ongoing variation. The strategies for affected recipients work around the cap rather than reducing it.

Income smoothing within a couple. Where one spouse has a high DB pension and the other has lower income, structuring non-pension wealth in the lower-income spouse's name reduces the family's overall tax. Investment income, rental income, and deductible expenses can be allocated to flatten the family's marginal rate position.

Commutation to lump sum. Some DB schemes allow partial or full commutation at retirement, or after a triggering event. A commuted lump sum is taxed under different rules and may avoid the DBIC. The trade-off: commutation forfeits lifetime pension income and shifts longevity risk onto the recipient. For some retirees the post-tax lump sum is more valuable than the pre-tax pension; for others, the lifetime certainty wins. The decision should be made with detailed post-tax modelling, ideally several years before retirement when the scheme allows it.

Deductions and structure. High-income retirees with substantial deductible expenses (financial advice fees under TR 2024/2, charitable giving, work-related expenses for continued part-time roles) reduce their assessable income, mitigating the effective tax rate on the cap excess. Tax-effective investment structures — investment bonds, family trusts, contributions to spouse super where eligible — can help with non-pension wealth.

Acceptance and accurate planning. For many senior DB recipients, the cap is unavoidable. The right strategy is to know the post-tax position accurately — to model the actual cash flow after the cap impact, plan spending and discretionary outflows around the post-tax figure, and ensure the rest of the financial structure is optimised. Pretending the cap doesn't apply, or assuming it has been mitigated when it has not, leads to over-optimistic retirement plans.

Indexation: a slow erosion. The DBIC is indexed in line with the general TBC, which moves in $100,000 increments tied to CPI. Senior DB pensions, by contrast, are indexed annually under their scheme rules — often at rates that include CPI plus salary movement, or that pre-date the introduction of CPI as the indexation base. The result: for senior pensioners, the gap between pension size and cap can widen over time, increasing the cap's effective bite year by year.

The annual review. For affected clients, the cap analysis should be a standing item in the annual review:

• Confirm the current cap figure for the year.
• Confirm the current pension amount, including any annual indexation.
• Calculate the cap excess.
• Project the post-tax position.
• Adjust the rest of the structure as needed.

The cap is one of the more technical features of the post-2017 super system, but for a small and well-defined cohort of Australian retirees it is one of the most consequential. Knowing about it is the easy part. Planning around it accurately is the work.

Sources

• ATO — Defined benefit income cap tool
• ATO — Transfer balance cap: capped defined benefit income streams
• ATO — Transfer balance cap (key super rates and thresholds)
• ATO — 7 Australian annuity and superannuation income streams 2026
• Services Australia — Income streams (Age Pension)