Table of Contents
Australia’s progressive income tax system is designed to ensure higher income earners pay a greater proportion of their income in taxes compared to those earning less. While this system promotes fairness, it also introduces a phenomenon known as bracket creep—a subtle yet impactful issue that can affect your take-home pay over time.
How Does Australia’s Tax System Work?
Australia’s income system applies different rates to income bands or brackets, ensuring higher earners contribute more. As of 1 July 2021, these brackets and rates are:
| Bracket | Rate (excl Medicare) |
| $0 – $18,200 | 0% |
| $18,201 – $45,000 | 19% |
| $45,001 – $120,000 | 32.5% |
| $120,001 – $180,000 | 37% |
| $180,001 and over | 45% |
For example:
- If you earn $25,000 per year, you’ll pay $1,292 in taxes, or 5.2% of your income.
- If you earn $90,000, your bill rises to $19,717, which is 21.9% of your income.
This progressive system ensures equity but sets the stage for bracket creep, particularly when income rises due to inflation or wage increases.
Where Bracket Creep Gets Noticeable
Let’s say you’re earning $90,000 annually, and you receive a 3% pay rise, increasing your salary by $2,700. This additional income is taxed at your marginal rate of 32.5%, meaning you’ll pay an extra $877.50 in taxes.
Here’s what happens:
- Your total taxes increase to $20,595, and your effective rate rises from 21.9% to 22.2% of your total income.
- After taxes, your take-home pay increases by $1,822, which is only a 2.02% rise in income.
This scenario highlights how inflation and wage growth can push individuals into higher brackets without significantly improving their purchasing power. Over time, the impact of bracket creep can erode financial gains, particularly during periods of high inflation.
Why Bracket Creep Matters
Bracket creep doesn’t discriminate—it affects anyone earning above the tax-free threshold of $18,200. However, its effects are more pronounced on higher-income earners, both in dollar terms and as a percentage of their income.
During periods of high inflation and strong wage growth, bracket creep becomes a more significant issue. Even when wage increases aim to keep pace with the cost of living, higher rates on the additional income reduce the real benefit to employees.
A Policy Solution: Tax Indexation
From a policy standpoint, the most straightforward solution to bracket creep is indexation. Under this system, thresholds would automatically adjust each year to reflect changes in the consumer price index (CPI) or a wage growth index.
With indexation:
- If your income rises in line with inflation, your average rate remains constant.
- Governments maintain fairness without disproportionately increasing the burden on middle- and high-income earners.
However, despite being discussed for decades, indexation has never been implemented in Australia. Why? Because bracket creep provides an invisible windfall to governments. Without changing rates or making legislative adjustments, governments quietly benefit from rising wages as taxpayers move into higher brackets.
What Can You Do About Bracket Creep?
While individuals can’t change policy, there are strategies to minimize the impact of bracket creep on personal finances:
1. Salary Sacrifice into Superannuation
Contributing to superannuation through salary sacrifice reduces your taxable income. Contributions are taxed at 15%, which is often lower than marginal rates. This strategy not only reduces your immediate burden but also boosts retirement savings.
2. Tax-Efficient Investments
Investing in assets that provide capital gains or tax-friendly income streams can help optimize your financial position. For instance, franking credits on dividends can offset liabilities.
3. Review Employment Benefits
Consider negotiating non-monetary benefits with your employer, such as additional leave, professional development opportunities, or company-paid expenses. These perks can increase your overall compensation without inflating taxable income.
4. Consult a Financial Adviser
Planning can be complex, and strategies to combat bracket creep depend on individual circumstances. A financial adviser can provide tailored advice, helping you navigate the system and identify opportunities to optimize your financial outcomes.
Take Control of Your Financial Future
Bracket creep is a reality of Australia’s progressive system, but it doesn’t have to derail your financial goals. By understanding how it works and implementing proactive strategies, you can minimize its impact and maintain greater control over your finances.
While reform may eventually address this issue, individual action remains essential. Whether it’s through smarter saving, strategic investment, or seeking professional advice, you can protect your income and work toward long-term financial security.
Read more on bracket creep from the Parliamentary Budget Office.
