How Superannuation is Taxed in Australia · 2026 ATO Guide
In Australia, superannuation is one of the most tax-advantaged wealth building structures in the world. Instead of paying your marginal income tax rate (which can reach 47% under Stage 3), concessional employer super contributions are taxed at a flat 15% inside the fund.
1. What is the Superannuation Guarantee (SG)?
The Superannuation Guarantee (SG) is the compulsory minimum percentage of your Ordinary Time Earnings (OTE) that your employer must pay into your nominated superannuation fund. Effective 1 July 2025 (covering the 2025–2026 tax year), the rate is 12.0%. By law, this payment cannot be deducted from your contracted base salary unless your contract is explicitly structured on a "total remuneration package" (TRP) basis.
2. How Concessional Contributions are Taxed
When your employer pays SG contributions into your super fund, the money is categorized as a "concessional contribution." Instead of being taxed at your personal marginal tax bracket (which ranges from 16% to 45% plus 2% Medicare levy), the super fund pays a flat 15% tax on entry. For example, if your employer contributes A$12,000 to your super, A$1,800 is paid in tax and A$10,200 is invested in your account.
3. The $30,000 Annual Cap & Carry-Forward Rules
For the 2025–2026 tax year, the general concessional contributions cap is $30,000 per person per year. This cap includes both compulsory employer SG payments and any voluntary salary sacrifice or personal deductible contributions you make. If your super balance was under $500,000 on 30 June of the previous financial year, you can also utilize unused cap amounts from up to five prior years under the carry-forward rule.
4. Division 293 Tax for High Earners ($250k+)
If your combined taxable income plus low-tax contributions (super) exceeds A$250,000 in an income year, the ATO assesses Division 293 tax. This adds an extra 15% tax on the portion of your super contributions above the $250,000 threshold, bringing the total fund tax rate to 30%. While this reduces the tax advantage, 30% remains significantly lower than the 47% top marginal tax rate.
All figures, threshold ceilings, and contribution formulas in this guide are grounded directly in published legislation from the Australian Taxation Office (ATO) Super Contributions Guide ↗ .