ATO Tax Calculator 2023-24
Estimate your Australian income tax for the 2023-24 financial year using current resident and non-resident tax brackets, an optional Medicare levy, the Low Income Tax Offset, and your own additional tax offsets. This calculator is designed for fast planning, budgeting, and salary discussions.
Calculate your tax estimate
Enter your annual taxable income and choose the options that match your situation. Results update when you click Calculate.
This estimate is for general information. It does not include Medicare levy reduction thresholds, Medicare levy surcharge, HELP/HECS repayments, SAPTO, family circumstances, private health impacts, or every offset available under Australian tax law.
Your estimate will appear here
Use the calculator to see income tax, levy, effective rate, marginal rate, and estimated after-tax income.
Expert Guide to the ATO Tax Calculator 2023-24
The 2023-24 Australian financial year brought meaningful changes to individual income tax rates, especially for resident taxpayers in the lower and middle income bands. If you are trying to estimate take-home pay, prepare for a tax return, compare a salary offer, or understand how tax offsets affect your final bill, an ATO tax calculator for 2023-24 is one of the most practical tools you can use. The key is knowing what the calculator includes, what it does not include, and how to interpret the result correctly.
This page is designed to help you do both. The calculator above gives a quick estimate based on taxable income, residency status, the standard Medicare levy, the Low Income Tax Offset, and any extra tax offsets you want to enter. The guide below explains the rules behind the numbers so you can use the estimate with more confidence.
What does an ATO tax calculator actually measure?
An income tax calculator estimates the tax payable on your annual taxable income using the applicable ATO tax brackets. In Australia, taxable income is not always the same as your gross salary. It is generally your assessable income minus allowable deductions. Once taxable income is known, the correct tax rate is applied based on your residency status for tax purposes.
A robust 2023-24 calculator usually aims to show:
- Base income tax based on current tax brackets
- Whether the tax-free threshold applies
- An estimate of the Medicare levy, commonly 2% for many residents
- Any offsets that may reduce tax, such as LITO
- Net income after tax
- Tax per pay cycle, such as monthly, fortnightly, or weekly
Keep in mind that the ATO ultimately assesses your actual tax based on your full return. That means items like capital gains, rental losses, reportable fringe benefits, reportable super contributions, private health insurance, child support, and education loan repayments may all influence the final result in real life.
2023-24 resident tax rates in Australia
For Australian residents, the 2023-24 financial year uses the following individual tax brackets. These are the core numbers many calculators rely on.
| Taxable income | Tax on this income | Marginal rate |
|---|---|---|
| $0 to $18,200 | Nil | 0% |
| $18,201 to $45,000 | 16c for each $1 over $18,200 | 16% |
| $45,001 to $120,000 | $4,288 plus 30c for each $1 over $45,000 | 30% |
| $120,001 to $180,000 | $31,288 plus 37c for each $1 over $120,000 | 37% |
| Over $180,000 | $53,488 plus 45c for each $1 over $180,000 | 45% |
These are annual rates. A calculator converts the annual total into monthly, fortnightly, or weekly views only after the tax has been estimated for the full year. That is why annual taxable income is such an important starting point. If you enter an incorrect annual figure, every other number will also be off.
How non-resident tax rates differ
Non-residents for tax purposes are taxed differently. Most notably, they do not get the resident tax-free threshold. That means tax usually starts from the first dollar of taxable income. This distinction has a major effect on any estimate, which is why it is critical to select the correct residency option in the calculator.
The common 2023-24 non-resident schedule is:
- 0 to $120,000 taxed at 30%
- $120,001 to $180,000 taxed at $36,000 plus 37% over $120,000
- Over $180,000 taxed at $58,200 plus 45% over $180,000
Whether you are a resident for tax purposes is not the same as your visa type alone. The ATO looks at several tests, including how long you stay, your living arrangements, and your ongoing ties to Australia. If you are unsure, check the official ATO guidance before relying on any calculator result for planning.
What about the Medicare levy?
For many resident taxpayers, the Medicare levy is an additional 2% of taxable income. It is separate from income tax but often included in online tax calculators because it affects your practical after-tax income. In simple estimates, the levy is often applied as a flat 2%. However, real life can be more nuanced because low income thresholds and reductions may apply, and some people may face the Medicare levy surcharge depending on income and private health insurance status.
This calculator includes a standard Medicare levy option. That makes it useful for high level planning, but it should not be treated as a final tax return figure if your circumstances are more complex.
Low Income Tax Offset, or LITO, in 2023-24
The Low Income Tax Offset can reduce tax for eligible resident taxpayers. For 2023-24, a common estimate is:
- Up to $37,500 taxable income, offset up to $700
- From $37,501 to $45,000, the offset reduces by 5 cents per dollar over $37,500
- From $45,001 to $66,667, the offset reduces by 1.5 cents per dollar over $45,000 from a base of $325
- Above $66,667, the offset is generally nil
This matters because many people with lower incomes assume their tax is simply the tax table amount. In practice, offsets can reduce the final tax payable. That said, offsets usually reduce tax itself, not necessarily the Medicare levy. So a person can still owe levy even if income tax is reduced to a very low figure.
Worked comparison using real 2023-24 figures
The table below compares sample tax outcomes at selected incomes. The resident column includes the standard 2% Medicare levy and assumes no offsets. The non-resident column excludes Medicare levy.
| Taxable income | Resident tax plus 2% Medicare levy | Non-resident income tax | Difference |
|---|---|---|---|
| $45,000 | $5,188 | $13,500 | $8,312 |
| $90,000 | $19,588 | $27,000 | $7,412 |
| $150,000 | $45,388 | $47,100 | $1,712 |
This comparison highlights a useful planning insight. At lower and middle incomes, resident taxpayers can benefit significantly from the tax-free threshold and lower initial marginal rates. As income rises, the gap narrows because more of the resident taxpayer’s income enters higher bands and the Medicare levy continues to apply.
How to use this calculator properly
To get the most useful estimate, start with your annual taxable income, not merely your advertised salary. If you know your gross salary but not your taxable income yet, consider whether you will claim deductible work expenses, charitable donations, tax agent fees, or investment-related deductions. Also think about salary packaging or salary sacrifice arrangements if they affect your taxable position.
Then follow this sequence:
- Enter your annual taxable income in Australian dollars.
- Select whether you are an Australian resident or non-resident for tax purposes.
- Choose whether to include the standard Medicare levy.
- Apply LITO if you want a quick estimate and your income may fall in the eligible range.
- Add any extra tax offsets if you know them.
- Select a pay frequency to translate the annual estimate into a periodic figure.
When you click Calculate, the tool estimates your income tax, any LITO, your additional offsets, Medicare levy where selected, your total annual tax, net income, effective tax rate, and marginal rate. The chart helps you visualise how much of your taxable income remains after tax.
Common mistakes people make with tax calculators
- Using gross income instead of taxable income. This is one of the biggest reasons estimates run high or low.
- Choosing the wrong residency status. Resident and non-resident rates differ sharply, especially at lower incomes.
- Ignoring Medicare levy. A 2% levy on a six figure income is meaningful and can change take-home budgeting.
- Assuming offsets are automatic in every calculator. Some tools include them, others do not.
- Confusing tax liability with PAYG withholding. Your employer’s withholding may not exactly match your final tax return outcome.
- Forgetting HELP or other obligations. If you have a study and training loan, your actual cash flow may differ from a basic tax estimate.
Why the 2023-24 year matters
The 2023-24 year is important because the resident rate between $18,201 and $45,000 is 16%, lower than the 19% rate many Australians remember from prior settings. That means calculators built on older rates can overstate tax for taxpayers in this band. Whenever you use a tax calculator, always check that it is aligned to the correct financial year. A 2022-23 tool and a 2023-24 tool can produce different results from the same income.
Who benefits most from using an ATO tax calculator?
Almost anyone with assessable income can benefit, but these groups often find it especially useful:
- Employees reviewing a new salary package
- Freelancers and contractors setting aside tax for the year
- Workers with multiple jobs who need a clearer view of annual liability
- Students and graduates moving into full-time work
- Expats and temporary residents checking residency impacts
- Investors estimating the tax effect of rental or dividend income
If you are deciding between two job offers, a good calculator can also highlight that a higher gross salary does not always translate into a proportional jump in take-home pay. Marginal rates matter, and understanding them can improve salary negotiations.
Where to verify official tax information
For current official rules and detailed eligibility guidance, refer to authoritative government sources. Useful references include the Australian Taxation Office pages on resident tax rates, the ATO information on the Medicare levy, and broader fiscal policy material from the Australian Treasury. If you have a study loan, the ATO guidance on compulsory repayments is also worth reviewing before relying on any simplified tax estimate.
Final practical takeaway
An ATO tax calculator for 2023-24 is most valuable when used as a planning tool rather than a substitute for a full tax return. For straightforward salary estimates, the result can be very helpful. For more complex situations involving investments, trusts, study loans, family benefits, or private health, it should be treated as an informed starting point.
If you want a fast answer, use the calculator above. If you want a better answer, combine the calculator with your actual deductions, offsets, and ATO guidance. That simple extra step can turn a rough estimate into a much more reliable budget figure.