Common Super Mistakes

The most expensive super mistakes are the invisible ones. No alert fires, no statement flags them, and nothing feels wrong — until the day the money is needed and the structure fails.

Australian professionals are diligent people. They read their statements, they know their balance, and many salary sacrifice. Yet the super mistakes we see most often have nothing to do with contributions. Instead, they hide in default settings, insurance fine print and a nomination form signed a decade ago. For a couple earning a combined $280,000, these quiet errors can cost more than any market downturn.

The stakes rose again this year. Division 296 — the extra tax on super balances above $3 million — became law in March 2026 and took effect from 1 July. Most households will never pay it. However, it confirmed something important: super’s rules move, and set-and-forget is no longer a strategy. Here are the five super mistakes worth fixing this month.

Most professionals were placed into a MySuper default at their first job and never left. That default was designed for an average member across an entire workforce. Consequently, a 38-year-old on $170,000 can sit in the same settings as a 62-year-old winding down. The investment option, the fees and the insurance were all chosen without reference to you.

Additionally, duplicate accounts still linger from career moves. Two accounts usually means two sets of fees and two overlapping insurance premiums, all quietly compounding against you. The review takes an hour. First, confirm you hold one account. Then check the investment option matches your timeframe. Finally, compare fees — a 0.5% annual difference on $400,000 is $2,000 every year, before compounding does its damage.

This is the mistake with the cruellest timing, because it only reveals itself at claim time. Default death and TPD cover inside super is typically a flat unit amount — often $200,000 to $300,000 in mid-career. In contrast, a $280,000 household with a Sydney or Melbourne mortgage may need $1 million or more to genuinely protect the family. The gap is rarely examined until it matters.

Definitions matter just as much as amounts. For example, many default TPD policies use an “any occupation” definition. A surgeon who can no longer operate but could theoretically answer phones may not meet it. Similarly, default income protection often pays for only two years, while your mortgage runs for twenty-five. Meanwhile, every premium is deducted from your balance, silently trading retirement savings for cover that may not fit. We cover the review process in why knowing your insurance cover matters.

Here is the fact that surprises almost everyone: your will does not control your super. The fund’s trustee decides who receives your balance — unless a valid nomination directs them. Furthermore, many binding nominations lapse every three years. A form signed in 2021 may already be worthless, leaving the largest asset outside your home to trustee discretion, delays and potential family disputes.

Tax adds a second layer. Paid to a spouse or dependent child, a death benefit is generally tax-free. However, paid to financially independent adult children, the taxable component can lose up to 17% including the Medicare levy. As a result, the same balance can produce very different outcomes depending on paperwork most people have never reviewed. If generational wealth matters to your family, this form matters — as we explore in building and passing on generational wealth.

Super’s tax treatment is so attractive that many households build nothing else. The result is a balance sheet with two lines: a home and a locked account. Consequently, any ambition to step back before 60 — or to fund a redundancy, sabbatical or business — has no fuel. Preservation rules do not bend for good intentions.

Moreover, concentrating everything in one legislated structure means concentrating legislative risk. Division 296 demonstrated how quickly the settings can move. Therefore the strongest plans pair super with flexible investments outside it, giving every decade of life a funded option. For the sequencing, see the power of a solid retirement plan.

The concessional contributions cap rose to $32,500 per person from 1 July 2026. Yet many dual-income couples use one cap heavily and the other barely at all. Unused caps from the previous five years can often be carried forward too — a lever that regularly saves five figures in a strong income year. At the same time, high earners should watch Division 293, which adds 15% on concessional contributions once income passes $250,000.

Balance equalisation between spouses is the quiet second half of this. Each partner has their own transfer balance cap for tax-free pension phase, and Division 296 applies per person, not per couple. In other words, two balanced accounts beat one big one on nearly every future setting. Contribution splitting and spouse contributions do the equalising — but only if someone actually plans them before June, never July.

Why these super mistakes persist

None of these errors comes from carelessness. You’re not reckless — the system is simply built on defaults, and defaults reward inattention with silence. The professionals who avoid these super mistakes are rarely smarter; instead, they have someone whose job is to check. Share the one-hour audit with a friend who has never looked — it is the kind of hour that repays itself for decades. Victor unpacks the wider principles in his book 7 Basic Wealth Strategies.

General advice only. This article does not consider your personal objectives, financial situation or needs. Consider whether the information is appropriate for your circumstances and seek personal financial advice before acting. Victor Idoko is an authorised representative of CFV Advisory. Tax, superannuation and insurance figures are current at publication (August 2026) and subject to legislative change.