Resident rates that applied to 2024–25

These brackets were the legislated Stage 3 settings for the income year ending 30 June 2025. They are applied progressively. Moving one dollar into a higher bracket does not make every earlier dollar taxable at the higher rate. The displayed marginal rate is the income-tax rate on the next dollar within the bracket and excludes Medicare and income-tested effects.

Taxable income is not necessarily cash received. It is assessable income less allowable deductions and carried-forward losses under applicable rules. Salary, bank interest, dividends, rental income, business income, foreign income and capital gains can contribute, while deductions must satisfy their own requirements. This calculator assumes the final taxable-income figure has already been established correctly.

The low income tax offset reduces income tax, not taxable income

The 2024–25 low income tax offset, or LITO, was up to $700. The model applies $700 when taxable income is $37,500 or less. Between $37,501 and $45,000 it reduces by 5 cents for each dollar above $37,500. Between $45,001 and $66,667 it starts from $325 and reduces by 1.5 cents for each dollar above $45,000. Above $66,667 it is zero.

A non-refundable offset cannot push the income-tax component below zero, and unused LITO is not paid as cash. The calculator caps the combined offsets at the bracket-tax amount. It then adds Medicare levy because LITO generally does not reduce that levy. An entered “other offset” may have different eligibility, ordering, carry-forward or refundable rules, so use it only for a known compatible non-refundable amount.

What the simplified Medicare option covers

The “simplified single threshold” option uses the 2024–25 ordinary individual thresholds for a person not entitled to the seniors and pensioners tax offset. No levy is estimated at taxable income of $27,222 or less. From $27,222 to $34,027, the model uses 10% of the excess over $27,222. Above $34,027, it uses 2% of taxable income.

Actual Medicare levy calculations can use family taxable income, dependent-child increments, spouse information, SAPTO thresholds, part-year exemption days and half-exemption days. A foreign resident or a person without Medicare entitlement may qualify for an exemption only when the formal conditions and evidence are met. Select full-year exemption only after establishing that status; the calculator does not decide it.

Medicare levy surcharge is a separate amount for some people without appropriate private patient hospital cover whose income for surcharge purposes exceeds the applicable threshold. It is not included. Private health insurance rebate adjustments are also excluded. Do not treat a zero Medicare result here as a conclusion about either item.

Read the result as a return bridge, not a payslip

For the default $80,000 taxable income, resident bracket tax is $14,788: $4,288 on the first taxable bracket plus 30% of the $35,000 above $45,000. LITO is zero because taxable income exceeds $66,667. The simplified Medicare levy is $1,600, making total estimated liability $16,388 before excluded items.

If $18,000 was withheld, the bridge shows a $1,612 refund position. Changing withholding does not change bracket tax, LITO or levy; it changes only the credit compared with liability. Changing taxable income can affect all of those components. This separation makes it easier to find whether a discrepancy comes from income and deductions, an offset, Medicare treatment or payroll withholding.

The page is not a PAYG withholding calculator. Withholding schedules operate on pay-period earnings and declarations, often before the final year’s deductions and other income are known. Nor is it a net-salary calculator: a return can include income unrelated to employment and adjustments that do not appear on each payslip.

Common items that can materially change the 2025 assessment

Study and training support loan repayments use separate repayment income and rates. Medicare levy surcharge uses income for surcharge purposes and private hospital cover facts. Capital gains can require cost-base records, discount eligibility and loss ordering. Foreign income may involve foreign income tax offsets and residency questions. Business and rental activities can introduce non-commercial loss, depreciation and deduction rules.

Age, pension status, part-year residency and minors’ income can change rates or offsets. Reportable fringe benefits, reportable employer super contributions and investment losses can affect income tests even when they do not change taxable income in the same way. Family circumstances can alter Medicare reduction thresholds.

The calculator also does not reproduce ATO whole-dollar assessment conventions or every ordering rule. Small differences can therefore remain even in a simple case. Compare the result with the notice of assessment labels rather than expecting every component to match a bank deposit to the cent.

Reconstruct a historical return with source records

Use the final income statement, interest and dividend records, managed-fund statements, rental schedules, business records and capital-gains working papers for 1 July 2024 through 30 June 2025. Match deductions to evidence and the ATO rule that applied. Do not substitute a current annual salary for the historical taxable income shown on the assessment.

Then compare the notice of assessment in this order: taxable income, tax on taxable income, offsets, Medicare amounts, other liabilities or credits, PAYG withholding and final account position. The structured result can help isolate a transcription error, but the notice and ATO account remain authoritative.

If a 2025 return needs amendment, check the amendment period and current process in ATO online services or through a registered tax agent. Changing one figure can affect multiple labels. Keep the original assessment and calculations so the reason for the amendment is clear.

Keep the historical year attached to every number

A search for “2025 tax” can refer to a return lodged during calendar 2025, pay received during part of 2025 or rates published in 2025 for a later financial year. Those are not automatically the same calculation. This module is fixed to the Australian income year that began on 1 July 2024 and ended on 30 June 2025. Its thresholds should travel with that label whenever a result is copied into a spreadsheet or email.

Do not mix the 2024–25 brackets with Medicare thresholds, offsets or withholding from another year. Even where headline marginal rates appear unchanged, indexed thresholds and income-tested amounts can move. For a payment that crosses 30 June, the date it is derived or received and the relevant tax rule can matter. Use the income statement and return instructions for the actual year.

A historical calculation is most useful as an audit trail. Record the calculator date, the source documents, any exemption selected and the exclusions that remain. If the objective is forecasting a future return, begin a separate scenario with that future year’s enacted settings rather than altering this page’s historical values.