The Finance Algorithm

Tax Refund Estimator

Estimate your Australian tax refund or tax bill. Enter your income, deductions, and offsets to see what to expect at tax time.

Updated October 2026Built and checked by MaverickHow it's calculatedReport an error

Your numbers

Updates as you type

2025-26 is the return lodged from July 2026. From 2026-27, work-related expenses get a $1,000 standard deduction

$
$85k

Your total income before any deductions

$
$20k

Total PAYG tax withheld from your pay (check final payslip)

$
$3k

WFH, car, tools, uniform, prof development

$
$0

Any additional income from investments

$
$0

Investment loan interest, property expenses, depreciation

Without hospital cover + high income = MLS

The button asks our AI to explain these figures in words.

Your tax refund (or bill)

Expected refund

+$2,972

Tax owed $17,028, tax withheld $20,000

Taxable income

$82,000

From $85,000 gross

Income tax

$15,388

Deductions saved you

$900

at your marginal rate, 2025-26

What different deduction levels do to your refund

Refunds grow as work-related claims grow: each $1 deducted saves your marginal rate × $1.

  • Refund
  • Tax bill
+$2k$0krefund+$2k$1krefund+$3k$3krefund+$4k$5krefund+$5k$10krefund
A refund isn't extra income. It means more tax was taken from your pay during the year than you owed, and the ATO is giving the difference back.

How it works

Wondering whether you'll get a tax refund or owe the ATO? The answer depends on how much tax your employer withheld vs how much you actually owe after deductions and offsets. This estimator works it out for 2025-26 (the return lodged from July 2026) or 2026-27, including the low income tax offset and, from 2026-27, the $1,000 standard deduction for work-related expenses.

  1. 1Enter your total gross income from all sources.
  2. 2Input the total tax already withheld by your employer(s): check your pay summaries.
  3. 3Add up your work-related deductions (home office, car, tools, etc.).
  4. 4Include any investment income (interest, dividends, rental).
  5. 5Add investment-related deductions if applicable.
  6. 6See your estimated refund or tax bill.

The figures today

Half of the Australians who paid tax in 2023–24 had a taxable income under about $71,000, and the top 10% earned more than about $157,000, from the ATO's statistics.

Worked examples

Office Worker with Deductions

Lisa earned $78,000 in 2025-26, had $17,500 tax withheld, and has $4,200 in deductions (home office, car and subscriptions).

Taxable income: $73,800. Tax on $73,800 at 2025-26 rates: $12,928. Medicare: $1,476. Total tax: $14,404. Tax withheld: $17,500. Estimated refund: $3,096. Lisa's deductions saved her $1,260 of income tax at 30%.

Multiple Income Sources

Ryan earned $65,000 salary (tax withheld: $13,000) in 2025-26, plus $8,000 in freelance income (no tax withheld) and $1,500 in bank interest.

Total income: $74,500. Tax at 2025-26 rates: $13,138 + Medicare $1,490 = $14,628. Only $13,000 withheld, so Ryan owes the ATO $1,628. Income with nothing withheld, like freelance work and interest, often leads to a bill.

Questions people ask

When can I lodge my tax return?
You can lodge from 1 July for the financial year that just ended (e.g., from 1 July 2026 for the 2025-26 year). Self-lodging deadline: 31 October. If you're on a registered tax agent's client list by 31 October, most individuals have until 15 May the following year.
Why is my refund smaller than expected?
Common reasons: your employer adjusted PAYG withholding more accurately (less overpayment), you had investment income you didn't account for, you earned more than last year and moved into a higher bracket, or LMITO (Low and Middle Income Tax Offset) ended after 2021-22 which reduced refunds by up to $1,500.
What can I claim as a tax deduction?
Expenses directly related to earning your income: work from home costs (70c an hour under the fixed rate for 2025-26), car for work travel (not commuting), tools and equipment, uniforms and protective clothing, self-education for your current job, union fees, the work share of phone and internet, and income protection premiums for cover outside super. From 2026-27 a $1,000 standard deduction can replace smaller work-related claims.

The terms, in plain English

PAYG Withholding
Pay As You Go: the tax your employer deducts from your pay throughout the year and sends to the ATO on your behalf. Your tax return reconciles this against your actual tax liability.
Tax Offset
A direct reduction in tax payable (not taxable income). Unlike deductions, offsets reduce your tax bill dollar-for-dollar. Examples: LITO, private health insurance rebate.
Taxable Income
Your total income minus allowable deductions. This is the amount your tax is actually calculated on.

Official sources