If you work across multiple employers, there’s a good chance your superannuation is more complex than it first appears.
Many professionals assume that higher super contributions are always a positive. In principle, that’s true. In practice, the system doesn’t always reward good intent. When compulsory contributions exceed the annual concessional cap, the outcome can be unexpected tax and difficult choices.
This is an issue seen among high-income earners in certain industries like healthcare and consultants. The rules are clear, but the decisions they create are not.
The challenge hiding in plain sight
The concessional contributions cap currently sits at $30,000 per year. Superannuation guarantee (SG) contributions from each employer count toward that cap.
If you have two or more employers, none of them can see the full picture, and each is required to contribute SG independently, even if the total pushes you beyond the cap. The result is often an excess contribution that triggers additional tax to you, the employee.
Having excess SG contributions will have an impact on the level of member non-concessional contributions that can be made to superannuation during a year as well.
For many people, this only becomes visible after the contributions have been reported to the Australian Tax Office and personal tax returns lodged. By then, the contribution has been made, and the tax consequence is already locked in.
You might be asking yourself: Isn’t there a way to stop this happening?
Don’t forget about Division 293
It’s also worth noting what it means if you’re reaching the $30,000 concessional contributions cap from Superannuation Guarantee (SG) alone.
With the SG rate at 12%, a person whose employer contributions alone are near $30,000 is typically earning well above $250,000. In other words, the same people most exposed to excess SG are often in the cohort that may face additional super-related taxes as well.
One of these is Division 293 tax. In broad terms, if your income, plus your concessional contributions is more than $250,000, an additional 15% tax may apply to some, or all, of your concessional contributions. Super is often still tax-effective at higher incomes, but it can increase the overall tax cost of compulsory and salary-sacrifice contributions, and it often only becomes apparent once the ATO issues an assessment after year end.
A choice that deserves careful thought
There is a mechanism that allows individuals to opt out of receiving SG contributions from an employer. On paper, it looks like a solution.
The complexity sits in the detail. Once you lodge the form, it cannot be revoked. That decision follows you, even if your circumstances change. A future reduction in income, a change in roles, or a period out of the workforce can leave you wishing those contributions were still flowing.
This is where many people pause – and rightly so.
Accepting the additional tax cost can, in some cases, be the more practical option. The tax is known and quantifiable. The long-term value of superannuation, particularly for high-income earners, often outweighs the short-term impost.
That said, this is not a universal answer.
The real question you should be asking
The decision isn’t simply about tax. It’s about flexibility, risk and long-term outcomes.
Ask yourself:
- How stable is your current income?
- How likely is it that your employment mix will change?
- What is the long-term cost of giving up compulsory contributions versus paying extra tax today?
These are personal questions, shaped by career stage, industry dynamics and financial goals. In healthcare especially, where portfolio careers are common, today’s certainty can quickly become tomorrow’s constraint.
Why advice matters here
Superannuation is designed to support you over decades, not just the current financial year. Decisions that feel administrative can have lasting consequences.
This is why we encourage people to pause before taking irreversible steps. Understanding the tax impact is important, but so is understanding what you’re giving up. In many cases, the best decision only becomes clear once you’ve stepped through the numbers and the scenarios with an adviser who understands both the rules and your working reality.
At Moore, we see our role as helping you navigate this complexity with clarity and care, so you can make decisions that support your future, not just manage today’s compliance. Because in a system that rewards long-term thinking, the right answer is rarely rushed.
If you’d like to explore how this applies to you, a conversation with your local Moore advisor can help bring the options into focus.
