Marginal Tax Rate Australia 2026: What It Means for Your Income

Australia uses a progressive tax system. This means your income is divided into brackets, and each bracket is taxed at a different rate. The marginal tax rate is the rate you pay on each additional dollar of income within a specific bracket.

For example, if your taxable income is $90,000, only the portion of your income above each threshold is taxed at the higher rate. The rest is taxed at the lower rates that apply to the earlier brackets. This system is designed so that higher earners pay a greater proportion of their income in tax, but only the income above each threshold is taxed at the higher rate.

How the Marginal System Works

• Not All Income Is Taxed Equally: Only the part of your income that falls within a higher bracket is taxed at that bracket’s rate.
• Progressive Structure: As your income increases, only the additional income is taxed at the higher rate, not your entire salary.
• No Sudden Jumps: Moving into a higher bracket does not mean all your income is taxed at the higher rate—just the portion above the threshold.

In 2026, the government’s staged tax reforms have adjusted the income tax brackets for Australian residents. The main changes include a broader middle bracket and a shift in the rates applied to different income levels. For the 2024-25 financial year (which applies to the 2026 tax season), the tax brackets are:

• Up to $18,200: Nil
• $18,201 – $45,000: 16%
• $45,001 – $135,000: 30%
• $135,001 – $190,000: 37%
• Over $190,000: 45%

These changes mean many Australians will see more take-home pay compared to previous years, especially those in the middle-income range. The merging of previous brackets into a single 30% rate for a wide range of incomes simplifies the structure and can result in lower overall tax for many.

What’s Different in 2026?

• Wider Middle Bracket: The 30% rate now covers a larger portion of incomes, replacing previous 32.5% and 37% brackets for many earners.
• Higher Thresholds: The top rates now apply at higher income levels, so fewer people are taxed at the highest rates.
• Simplified Structure: Fewer brackets make it easier to estimate your tax liability.

Understanding your marginal tax rate can help you make informed choices about your income, investments, and superannuation. Here’s how the system can influence your financial decisions:

Salary and Wage Increases

If you receive a pay rise that pushes part of your income into a higher bracket, only the extra amount is taxed at the higher rate. For example, if your income increases from $135,000 to $140,000, only the $5,000 above $135,000 is taxed at 37%—the rest is taxed at the lower rates.

Superannuation Contributions

Contributing extra to your superannuation can be tax-effective if your marginal tax rate is higher than the 15% tax on super contributions. This can reduce your taxable income and potentially increase your retirement savings.

Investment Income and Capital Gains

Investment earnings and capital gains are generally taxed at your marginal rate. Knowing your bracket helps you plan when to sell assets or realise gains, as the tax you pay depends on your total taxable income for the year.

Payroll and Withholding

Employers need to use the correct withholding tables to ensure the right amount of tax is deducted from employees’ pay. Contractors and sole traders should review their quarterly PAYG instalments to reflect the new thresholds and avoid under- or over-paying tax.

There are a few misunderstandings about how marginal tax rates work in Australia:

• Myth: Earning More Means Less Take-Home Pay

  Some people worry that moving into a higher tax bracket will reduce their overall take-home pay. In reality, only the income above the threshold is taxed at the higher rate, so your net income still increases with a pay rise.

• Myth: The Whole Income Is Taxed at the Highest Rate

  Only the portion of your income that falls within a higher bracket is taxed at that rate. The rest is taxed at the lower rates for each bracket.

• Myth: Tax Brackets Are Indexed Automatically

  Tax brackets are not automatically adjusted for inflation each year. If they remain unchanged, inflation can gradually push more income into higher brackets, a phenomenon sometimes called ‘bracket creep’.

Understanding your marginal tax rate can help you make smarter decisions about your finances. Here are some practical steps:

Review Your Income Structure

Consider how your income is made up—salary, bonuses, investment income, or business profits. Knowing which bracket your income falls into can help you plan for tax time.

Plan Super Contributions

If your marginal rate is higher than the super contributions tax, consider salary sacrificing into super to reduce your taxable income.

Time Investment Sales

If you have flexibility over when to sell investments, consider the impact on your total taxable income for the year. Spreading sales over multiple years may help manage your marginal rate.

Stay Informed About Policy Changes

Tax laws and brackets can change. Keep up to date with any government announcements that may affect your tax position.

For more on managing your finances, see our finance guide.

What is a marginal tax rate?
It’s the rate of tax you pay on each additional dollar of income within a specific bracket, not on your entire income.

Will earning more push all my income into a higher tax bracket?
No. Only the income above the threshold is taxed at the higher rate. The rest is taxed at lower rates.

How do the 2026 tax changes affect most people?
Many Australians, especially those in the middle-income range, may see more take-home pay due to the broader 30% bracket and higher thresholds for the top rates.

Are tax brackets adjusted for inflation every year?
No. Tax brackets are not automatically indexed, so inflation can gradually increase the amount of income taxed at higher rates if brackets remain unchanged.