Tax Return Calculator
Find Out What You're Owed — Or What You Owe — in Seconds
TaxByte Accountants designed this official Tax Return Calculator to take the guesswork out of tax time. Simply enter your numbers to get an instant estimate of your 2026-2027 financial year tax position, based on the latest ATO rates and thresholds for Australian residents.
Whether you’re PAYG, casual, or juggling a side hustle, this tool gives you a fast answer on whether a refund is coming your way or whether you’ll owe the taxman.
Tax Return Calculator
Your income
Calculator assumes Australian resident rates, Low Income Tax Offset (LITO) and a 2% Medicare levy. No other offsets included.
(Income tax after LITO + Medicare) $0
This means for a annual income of $0 you pay an estimated $0 in income tax and Medicare.
This is a guide only and does not include other tax offsets or the Medicare levy surcharge.
Want a second opinion on your numbers?
Have a TaxByte expert review your numbers to make sure you haven’t missed any deductions and get every dollar you deserve.
How Our Tax Refund Calculator Works
It doesn’t matter if you’re full-time, part-time, casual, or running your own show as a sole trader; getting a read on your 2026-27 tax outcome only takes three steps:
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Tell Us What You Earned
Enter your gross annual income and any tax already withheld by your employer. That's the starting point for everything else the calculator works out.
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See Where You Stand
The calculator runs your figures through the current tax scales and the Medicare levy, then tells you straight away whether you've overpaid (refund incoming) or underpaid (bill due).
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Talk to TaxByte
Whichever way your estimate lands, a TaxByte accountant can help you turn it into a better result, chasing down every deduction and offset you're entitled to.
What's Actually New in 2026–27
We keep this calculator aligned with the Australian Taxation Office (ATO) Pay As You Go (PAYG) schedules, so it reflects the approved tax scales for the financial year running from July 1, 2026, to June 30, 2027.
Australia’s tax system is progressive: the more you earn, the higher the rate on each additional dollar. Here’s where the 2026-2027 brackets sit:
- 0% for income up to $18,200 (Tax-free threshold)
- 16% for income between $18,201 and $45,000
- 30% for income between $45,001 and $135,000
- 37% for income between $135,001 and $190,000
- 45% for income over $190,000 (Plus the Medicare Levy of typically 2%)
The headline change this year
The second bracket has come down from 16% to 15%, part of the legislated cost-of-living tax cuts that took effect on 1 July 2026, with a further cut to 14% legislated for 1 July 2027. Every other threshold carries over unchanged from 2025-26.
Advanced Inputs: Getting a Sharper Estimate
The basics will get you a ballpark figure, but adding a few extra details to the Tax Calculator 2026-27 will tighten that estimate. Here’s what’s worth including:
- Total Deductions: Include all known work-related expenses, charitable donations, and costs of managing your tax affairs.
- Other Income: Don't forget to enter interest on savings, investment returns, or pay from a second job.
- Reportable Amounts: Factor in Reportable Employer Superannuation Contributions (RESC) along with Reportable Fringe Benefits (RFB).
- HELP/HECS: If you have an existing student loan balance, this will be factored into your required repayment; the 2026-27 repayment threshold is $69,528.
To improve calculation accuracy and maintain total Tax compliance, our certified specialists can help you classify deductions and offsets so your return satisfies all ATO requirements.
When Is Your 2026–27 Tax Return Due?
If you’re lodging your own return, the standard deadline is 31 October following the end of the financial year. If you engage a registered tax agent before that date, you’ll receive an extended deadline, so it’s worth getting in touch early if you think you’ll need the extra time.
Frequently Asked Questions
Your tax return works by taking your total income and subtracting eligible deductions and offsets to reach your taxable income. That figure is then taxed at Australia's progressive rates (0% to 45%, depending on your bracket), plus the Medicare Levy (generally 2%). Whatever tax you've already had withheld is then subtracted from that total. Withheld more than you owe? You get a refund. Withheld less? You likely have a tax liability.
Use it to plan ahead. Whether that's adjusting how much tax is withheld from your pay, exploring ways to lower your taxable income, or simply budgeting for a refund or a bill before it lands.
Not at all. The basic fields alone will give you a workable estimate. That said, adding any deductions you already know will sharpen the accuracy. If you're not sure what you're entitled to claim, get in touch with TaxByte, and we'll help you work it out.
Ideally, before you lodge, as it gives you time to plan for a bill or a refund, and helps you decide whether to adjust your withholding or look at other ways to bring down your taxable income.
A few things move the needle most:
- Keep thorough records of every work-related expense as you go.
- Claim everything you're entitled to: home office costs, work-related travel, professional development, and so on.
- Make sure applicable offsets are applied, such as the Low Income Tax Offset.
- Work with a registered tax agent like TaxByte, so nothing gets missed and everything's accurate.
Disclaimer: This Tax Return Calculator 2026-27 provides an initial tax return estimate based on the figures you input and current Australian tax law. It is not a final tax assessment. For your official tax return lodgment and maximum refund guarantee, please consult with a qualified TaxByte tax accountant in Sydney.