A technical change buried deep inside Labor’s capital gains tax reforms could leave millions of Australians paying more tax on their superannuation investments, prompting one of the nation’s largest retirement funds and the financial services industry to demand an urgent rewrite.
New modelling by the Financial Services Council suggests at least $372 billion in Australian superannuation assets could be exposed to higher effective taxation because those investments are held through managed investment structures rather than directly.
The estimated additional tax bill is much smaller than the enormous pool of assets potentially affected — about $55 million a year in aggregate according to the FSC — but the industry argues the principle is significant.
Two super members holding economically identical investments could potentially end up with different after-tax returns simply because their funds use different investment structures.
The dispute has emerged from the next stage of the Albanese government’s sweeping changes to capital gains tax and negative gearing announced in the 2026–27 Budget.
And importantly, the rules at the centre of the latest controversy have not yet completed the legislative process.
The $372 billion figure does not represent a $372 billion tax
The scale of the numbers makes an important distinction essential.
The government is not proposing to collect $372 billion from superannuation.
Nor is $372 billion the expected value of additional tax revenue.
It is the FSC’s estimate of the value of superannuation assets potentially exposed to the disputed tax treatment because they are invested through managed investment schemes.
The FSC estimates the resulting additional tax across those investments could total about $55 million annually.
That is a relatively small amount compared with the overall value of Australia’s multi-trillion-dollar superannuation system.
But the industry says focusing solely on the aggregate revenue misses the underlying problem.
The issue is how capital gains and losses are treated inside managed funds
The controversy concerns managed investment trusts, or MITs, and Attribution Managed Investment Trusts, known as AMITs.
These structures allow investors, including superannuation funds, to pool money into professionally managed investments.
Super funds can therefore gain exposure to assets through a managed investment vehicle rather than buying and holding every underlying asset directly.
That distinction may sound technical.
Under the proposed rules, however, it can potentially produce different tax results.
The disputed rule concerns the ordering of capital losses
Broadly, the proposed capital-loss ordering rules restrict the way managed investment trusts can allocate losses against different types of capital gains.
Some gains are eligible for concessional capital gains tax treatment because the underlying assets have been held for the required period.
Others are not.
The way losses are applied between those gains can change the ultimate taxable amount attributed through the managed fund.
The FSC argues the government’s proposed treatment prevents a super fund investing through an MIT or AMIT from achieving the same tax outcome it could potentially obtain if it held an equivalent investment directly.
For affected gains, the difference could be 10 per cent versus 15 per cent
FSC modelling suggests an accumulation-phase super investor could face an effective tax rate of 15 per cent on affected capital gains through a managed structure rather than an effective discounted rate of about 10 per cent.
On $10,000 of affected capital gains, the council says that could mean as much as $500 in additional tax.
That does not mean every $10,000 earned by a super fund would suddenly attract an extra $500.
The calculation applies to capital gains affected by the particular rules and circumstances being disputed.
But it illustrates why the industry believes a seemingly obscure provision can materially alter investment outcomes.
The FSC calls it a ‘new and unexpected tax’ on retirement savings
Financial Services Council chief executive Blake Briggs has urged the government to amend the draft legislation.
His argument is based on investment neutrality.
Two Australians with exposure to the same underlying investment, he says, should not end up with different retirement outcomes simply because one super fund owns the asset directly while another accesses it through a managed fund.
“This is a new and unexpected tax on Australians’ retirement,” Briggs said.
The FSC says any additional liability would ultimately be carried by super members through lower after-tax investment returns.
Colonial First State Superannuation has joined the push for changes
The concern is not confined to an industry lobby group.
Colonial First State Superannuation, which manages about $150 billion, has also warned that the current drafting could produce higher tax outcomes for some members.
Chief executive Kelly Power said the government’s stated intention was for superannuation funds to be excluded from the reforms.
But she warned the legislation as drafted could still affect Australians whose retirement savings are invested through managed funds.
“Super members should not be worse off because of how their investments are structured,” Power said.
She called for a targeted adjustment so equivalent investments receive equivalent tax treatment whether assets are held directly or through a managed investment vehicle.
That goes to the heart of the controversy
The government has presented its broader CGT reforms as changes aimed principally at the taxation of investment assets and housing, while repeatedly arguing that ordinary retirement savings would be protected.
The industry’s contention is that the indirect effect of the new rules can nevertheless reach superannuation.
In other words, a super fund may not be the direct policy target but could still suffer a different tax outcome because of the vehicle through which it invests.
That is why critics have begun describing the provision as a hidden or stealth super tax.
Those descriptions are political characterisations, not the formal name of a new tax
The government has not announced a separate levy called a “super tax” applying to $372 billion in retirement savings.
The controversy instead arises from the interaction between proposed CGT rules and managed investment structures used by superannuation funds.
That distinction matters because the policy debate is about an indirect consequence of tax design rather than a straightforward new percentage levy on every super account.
It also explains why the issue did not attract widespread attention when the broader tax package was first announced.
Treasury’s August consultation brought the issue into focus
On August 4, Treasurer Jim Chalmers announced consultation on the exposure draft of the Treasury Laws Amendment (Tax Reform No. 3) Bill 2026.
The legislation forms another tranche of the government’s implementation of the negative-gearing and capital-gains-tax reforms announced in the May Budget.
The Treasury material specifically identifies the application of the CGT changes to Attribution Managed Investment Trusts as one of the complex areas addressed by the draft.
The government said further consultation would consider options to reduce compliance costs for fund managers.
Consultation ran until August 21.
That means the disputed provisions can still change
This is an important point for super members concerned by headlines suggesting a new tax has already been permanently imposed.
The relevant draft provisions were released for consultation.
The government has said it will consider submissions and feedback while finalising legislation before introduction to parliament.
The current controversy is therefore occurring at precisely the stage when industry groups are expected to identify unintended consequences and argue for amendments.
The FSC and Colonial First State want the government to use that process to remove the differential treatment.
Treasury has confirmed the loss-allocation treatment being challenged by the industry
According to reporting on the FSC’s analysis, Treasury has indicated that under the proposed approach a superannuation fund investing through the relevant managed structure would not be able simply to undo the fund’s allocation of capital losses.
That is important because the allocation can affect how much of a capital gain receives concessional treatment.
The FSC argues this is what creates the difference between direct and indirect investment.
Treasury has not publicly characterised the result as a new tax on superannuation.
The government has instead emphasised that the exposure draft remains subject to consultation and feedback.
The FSC produced a worked example showing the potential difference
Its modelling compared identical investments with the same pre-tax returns.
Under the scenario, a super fund investing through an MIT or AMIT incurred $122 in tax.
If the equivalent investment was held directly, the tax was $105.
That represents a tax bill about 16 per cent higher purely because of the investment structure in the example.
The after-tax return fell from 7.875 per cent to 7.733 per cent.
The difference is less than 15 basis points.
That may appear small in a single period, but superannuation is a long-term investment system in which even modest differences in net returns can compound over years.
The effect would not necessarily be spread evenly across the super system
The FSC believes smaller funds could be particularly exposed.
Large superannuation funds can have the scale, specialist teams and capital required to hold substantial assets directly.
Smaller funds are more likely to rely on pooled managed investment structures to access particular markets and asset classes efficiently.
If direct ownership receives more favourable tax treatment, funds with greater capacity to invest directly can potentially avoid some of the disadvantage.
Funds without that capacity cannot do so as easily.
Self-managed super funds could also be caught in the structural problem
Australia’s self-managed superannuation sector contains around 1.24 million members.
Many SMSFs use managed funds to obtain diversified exposure to investments that would be difficult or impractical to replicate directly.
The FSC argues that makes them another group potentially affected by the differential treatment.
The issue is therefore not simply about giant institutional super funds.
It can extend to Australians managing their own retirement portfolios through pooled investment products.
Managed investment structures are deeply embedded in superannuation
Industry data helps explain why the potential asset exposure reaches hundreds of billions of dollars.
APRA-regulated superannuation funds held approximately $1.28 trillion indirectly through investment vehicles as of September 2023, according to figures cited by the FSC.
About $827 billion was held through wholesale, listed retail and unlisted retail trusts.
Those figures do not establish that every dollar is an MIT or AMIT affected by the proposed rules.
They do, however, demonstrate how important trust-based investment structures are to Australia’s retirement system.
The $372 billion estimate comes from FSC member data
The council surveyed members collectively responsible for more than $500 billion in accumulation-phase superannuation assets.
From that information it estimated at least $372 billion could be exposed to the higher tax outcome.
The word “at least” is important.
It is an industry modelling estimate, not an official Treasury calculation of the total assets affected across every Australian super fund.
Similarly, the estimated $55 million annual tax impact comes from FSC modelling rather than a government revenue forecast.
There could also be consequences for how funds structure investments
If the rules make investing through managed funds less tax-efficient than owning assets directly, funds have an incentive to change behaviour.
The FSC warns some super funds could move assets into superannuation-only vehicles or establish more direct holdings.
That might reduce the immediate tax disadvantage.
But it could also fragment investment pools.
Pooling money from multiple investors is one of the ways asset managers achieve scale and spread costs.
If tax rules encourage investors to split otherwise similar assets into separate structures, administration and investment costs can rise.
The industry says there is no clear policy reason for that outcome
The FSC’s proposed solution is relatively narrow.
It is not asking the government to abandon the entire CGT reform package.
It wants superannuation funds to receive equivalent capital-gains treatment whether they hold an investment directly or access it through an MIT or AMIT.
In its view, that would preserve the government’s wider tax policy while preventing an unintended penalty on retirement savings.
The government now has to decide whether the result is intentional
This is one of the unresolved questions surrounding the controversy.
The government has said superannuation funds are intended to be excluded from the reforms.
Industry participants say the draft legislation nevertheless creates an indirect tax consequence for super.
If that consequence was unintended, the consultation process provides an opportunity to correct it.
If it was intentional, the government faces pressure to explain why two equivalent super investments should receive different tax outcomes depending on structure.
The political stakes are larger because super has become a major dividing line
Anthony Albanese and Jim Chalmers have repeatedly presented Labor as a defender of Australia’s compulsory superannuation system.
Labor regards super as one of its major economic and social-policy achievements and has attacked Coalition proposals it argues would weaken retirement savings.
That makes any allegation that its own tax reforms could reduce members’ after-tax super returns politically sensitive.
The Coalition has already seized on the disclosure.
Opposition figures are calling it another Labor tax
Shadow Treasurer Tim Wilson has accused the government of targeting superannuation through the CGT changes and used the disclosure to reinforce the Coalition’s wider attack on Labor’s tax agenda.
But some political claims surrounding the issue require caution.
The $372 billion figure has at times been presented as though it represents the amount of new tax imposed on retirement savings.
It does not.
Again, $372 billion is the estimated value of assets potentially exposed to the disputed treatment.
The FSC’s estimated additional tax revenue is approximately $55 million annually.
For an individual member, the impact would depend on their fund and investments
There is no basis to say every Australian with super will lose a fixed amount.
Whether a member is affected depends on factors including how their super fund invests, whether relevant assets are held through an MIT or AMIT, the capital gains and losses generated by those investments and the final form of the legislation.
Even among affected funds, the consequences will not necessarily be identical.
That makes the controversy more complicated than a conventional increase in a headline tax rate.
Retirees also need to distinguish accumulation and pension phases
The clearest FSC example concerns accumulation-phase investors, whose superannuation earnings are generally taxed within the fund.
Tax arrangements can differ once a member moves into retirement-phase income streams.
It is therefore too broad to claim every Australian retiree will personally pay a new 15 per cent capital gains tax under the draft.
The concern is instead that superannuation investment vehicles can experience less favourable tax treatment, reducing after-tax returns ultimately attributable to members.
The controversy illustrates how small tax rules can have very large reach
Australia’s superannuation system holds trillions of dollars.
Its funds invest across shares, property, infrastructure, bonds, private markets and overseas assets using numerous legal structures.
A change that appears highly technical in tax legislation can therefore flow through investment chains containing hundreds of billions of dollars.
That is precisely what the FSC says has happened here.
The provision does not need to mention millions of individual super accounts to ultimately affect their returns.
Whether it actually does so now depends on what happens to the draft
The government’s consultation formally closed on August 21.
Treasury and ministers must now consider submissions before the legislation is finalised and introduced to parliament.
That gives Chalmers a choice.
The government can retain the disputed treatment and defend its rationale.
It can modify the rules to neutralise the superannuation impact.
Or it can produce another mechanism intended to preserve the wider CGT reforms while addressing the industry’s concerns.
For super members, that next step matters more than the political label attached to the controversy.
The proposal has been called a hidden tax and a stealth super tax.
The government has not described it that way.
What is established is narrower but still significant: the financial services industry has identified a provision in Labor’s draft CGT framework that it says can cause superannuation investments held through managed funds to face higher effective taxation than equivalent investments held directly.
Its modelling puts the potentially exposed retirement assets at at least $372 billion and the additional annual tax at about $55 million.
One of Australia’s largest super funds agrees the drafting needs to change.
And because the legislation is still being finalised, the government now has an opportunity to decide whether that difference survives into law.
