End of financial year sneaks up every single year.
30 June 2026 is tomorrow, and for ASX investors it is the single most consequential date on the calendar.
Decisions made before that date are what move the needle on tax and superannuation outcomes for the year.
Here is what is worth checking before the window closes.
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Superannuation: the concessional contributions cap
The concessional contributions cap for FY2026 sits at $30,000, including employer contributions.
Investors who have not yet reached that cap can still make additional voluntary contributions.
These are taxed at 15% inside super rather than at a marginal rate that could be more than double that.
As such, every dollar contributed at the concessional rate before 30 June is a permanent and compounding tax saving. But super funds need to actually receive the contribution by the deadline, not simply have it initiated.
For investors with room left under the cap, this is one of the most reliable ways to reduce a tax bill before the financial year closes.
New tax laws change the maths for larger balances
This end of financial year is different from previous years for one specific reason.
Division 296, which takes effect from 1 July 2026, introduces an additional 15% tax on the earnings attributable to superannuation balances above $3 million.
This brings the effective rate to 30% on that portion.
For balances above $10 million, there is an additional 25% tax rate, bringing the effective rate to 40%.
Both thresholds are indexed to CPI. Unlike the original 2023 proposal, the version that passed Parliament applies only to realised earnings, such as dividends, interest, rent, and capital gains actually realised on sale. Importantly, it does not apply to unrealised "paper" gains on assets still held.
The first assessment will be based on balances at 30 June 2027. However, SMSF trustees can elect to reset the cost base of fund assets to their value as at 30 June 2026. This can reduce the Division 296 tax payable when those assets are eventually sold.
That election needs to be made by the 2026-27 tax return lodgement date. As such, it's worth raising the issue with an accountant or SMSF adviser now rather than waiting.
Capital gains and losses can be locked in
Before 30 June, it is worth reviewing the portfolio for both gains and losses.
Selling a loss-making position can help offset capital gains tax from profitable positions sold earlier in the year. This is a strategy worth discussing with an accountant given how complex the rules around using capital losses can be.
To be clear, investors should not be making last-minute trades purely for tax reasons.
But there is an opportunity for investors to reduce this year's tax bill by locking in capital losses against gains already realised.
It's also a natural moment to review what you actually hold
Beyond the tax mechanics, end of financial year is a sensible moment to step back and review the quality of what is sitting inside your portfolio or super fund.
Macquarie Group Ltd (ASX: MQG) and CSL Ltd (ASX: CSL) are two examples of quality, well-known ASX stocks that can compound over time.
For investors using the end of financial year as an opportunity to reassess their holdings, these stocks could be a good starting point.
Foolish takeaway
End of financial year is not just an accounting deadline.
It is the one moment each year when superannuation contributions, capital gains positioning, and portfolio quality all intersect with a hard cutoff date.
A few considered decisions before 30 June tend to matter far more than anything done in a rush on the day itself.
