Salary sacrifice is a great way to help your super savings grow and pay less income tax at the same time.
Rather than taking your entire pay in cash, your employer may allow you to choose to contribute an amount of your before tax pay to your super. When you do that, the contribution you make is taxed at only 15%, which is most likely less than your normal rate of tax. But by putting some of your before tax pay into super, your income is reduced. And this could mean that the amount of tax you pay on that income may reduce too.