Should I Salary Sacrifice Into Super? (Calculator)

Think of salary sacrificing as a negotiation with your employer. Instead of taking the full amount of your pay into your pocket (and paying income tax on it), you agree to have a portion of your pre-tax wages redirected straight into your super fund. This is a huge deal because it means that money never technically hits your taxable income. Instead of paying the full marginal tax rate (which could be 32.5% or more), you only pay tax on the remaining amount. Essentially, you are moving income from a high-tax bracket (your salary) into a low-tax bracket (your super). For example, if you sacrifice $5,000, you save the tax you would have paid on that $5,000. This is a powerful, tax-effective way to boost your retirement savings and is a cornerstone of Australian financial planning.

The benefits of salary sacrificing are most pronounced if you are currently in a high tax bracket, meaning you earn enough to be taxed at 32.5% or higher. Generally, anyone earning $45,000 or more should look into this strategy. The biggest advantage is the immediate tax refund you get. However, you need to be mindful of the rules, particularly the concessional contribution cap. For the 2026 financial year, this cap is $30,000. This $30,000 limit includes both contributions from you (the employee) and any contributions from your employer. If you haven't used your full cap, you might be able to carry forward unused amounts from the last five years, which is great for maximising tax savings. We recommend checking out our guide on super contribution caps to see how much room you actually have.

While salary sacrificing is excellent for tax efficiency, it’s not a magic bullet. The biggest 'catch' is that the money is locked away until your preservation age, meaning you can't dip into it for a house deposit, an emergency fund, or to pay off high-interest debt. This is crucial to remember. Furthermore, high earners ($250,000+) need to be aware of the Division 293 tax trap. If you contribute too much in one year, the ATO might tax the excess, cancelling out some of your tax benefits. Before making any decisions, it’s essential to model your finances accurately. You can use our salary sacrifice calculator to see your potential savings. If you’re unsure whether this is the right time, it might be better to focus on building an accessible emergency savings fund first.

To show you the impact, here is a comparison of potential tax savings for the 2026 financial year. If you are earning $80,000 and sacrifice $10,000, you save significantly more tax than if you were only earning $40,000. The higher your income, the greater the tax difference. For instance, at an income of $150,000, sacrificing $15,000 could save you over $4,000 in taxes compared to paying the tax on the full $15,000. The savings potential is massive, but it requires careful planning. Understanding your marginal tax rate is the key to maximising these savings. If you want to explore other tax-saving options, check out our guide on tax-deductible investments.

Q: Does salary sacrificing always save me money?

Answer: Not necessarily. If you are in a low tax bracket (e.g., earning under $35,000), the immediate tax benefit might be small. You must weigh the tax savings against the need for liquidity (access to cash). If you need the money in the short term, it's better to save it in a regular savings account.

Q: What is the difference between concessional and non-concessional contributions?

Answer: Concessional contributions (like salary sacrificing) are pre-tax dollars that lower your taxable income. Non-concessional contributions are post-tax dollars (money you've already paid tax on) that are simply added to your super balance.

Q: Can I sacrifice amounts that are too high and get taxed?

Answer: Yes, this is the Division 293 trap. If your taxable income is very high (over $250,000), contributing too much in one year can trigger excess contributions tax, which negates the benefit.