Useful next calculations
Rates and sources, 2026
Australian GST at the standard 10% rate, or another rate you enter for GST-free or input-taxed modelling. It does not classify a supply.
| Band or figure | Rate |
|---|---|
| Standard GST rate | 10% |
| GST-free modelling | enter 0% |
Source: ATO — GST. Source checked for 2026.
When to use this calculator
- Before accepting a pay change, bonus or contribution arrangement.
- When you want a simple take-home or conversion estimate before payroll or filing.
- When you need to convert between hourly, monthly and annual pay.
- When you want to compare two pay scenarios using the same assumptions.
A worked example
These are the example figures the calculator opens with.
| Input | Value |
|---|---|
| Amount (A$) | A$1,000 |
| GST rate (%) | 10% |
| Amount includes GST? (1=Yes, 0=No) | 0 |
For those figures the calculator returns:
- Net: A$1,000.00
- GST: A$100.00
- Gross: A$1,100.00
Method & assumptions
This calculator adds or removes Australian GST at the rate you enter. The standard GST rate is 10% on most taxable supplies. Some food, medical and education items are GST-free; the rate field lets you model those as 0%.
It does not decide whether a supply is taxable, GST-free or input-taxed, and it is not a BAS. Confirm treatment on the ATO GST pages before you lodge.
Official references
Common mistakes
- Using an assumption that is not supported by a current local quote, bill, statement or official source.
- Treating a generic estimate as a lender, provider, payroll or tax authority decision.
- Mixing monthly and annual inputs without converting them consistently.
- Testing only one scenario instead of checking how a cautious assumption changes the result.
What to do next
- Run a second scenario with a cautious assumption so you can see the downside clearly.
- Compare the result with the related calculators below before making a decision.
- Check current local rules, eligibility and provider terms before applying or committing money.
- Keep a record of the assumptions so you can update the estimate when a quote, bill or pay figure changes.
Questions people ask
The standard GST rate is 10% of the GST-exclusive price. Some supplies are GST-free (0%) or input-taxed. This tool applies the rate you enter; it does not classify the supply.