You can pay as much as you want into super from your after-tax salary and because you have already paid tax on this money, these contributions are tax free.
...because you have already paid tax on this money, these contributions are tax free."
If you already make personal contributions to your superannuation account, consider increasing this amount slightly as your salary increases. You can also pay money from savings, from the sale of assets, from an inheritance or unpaid leave when you resign or retire directly into your superannuation account.