Example result based on the prefilled values.
| Result | Value |
|---|---|
| Net | A$1,000.00 |
| GST | A$100.00 |
| Gross | A$1,100.00 |
Continue your plan
Useful next calculations
Rates & sourcescurrent
Australian GST at the standard 10% rate, or another rate you enter for GST-free or input-taxed modelling. It does not classify a supply.
| Band / figure | Rate |
|---|---|
| Standard GST rate | 10% |
| GST-free modelling | enter 0% |
Source: ATO — GST — source checked for current.
When to use this calculator
- Before pricing a job, setting margin targets, or reviewing hiring costs.
- When you want to test sensitivity around volume, VAT, markup, or overhead changes.
- When you need a practical estimate before committing to a budget or proposal.
- When you are modelling break-even volume and want to see how it shifts as overheads or prices change.
- When you are preparing a quote and need to verify that the margin holds after materials, labour, and VAT are accounted for.
A realistic Australia planning example
Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.
| Input | Value |
|---|---|
| Amount (A$) | 1000 |
| GST rate (%) | 5% |
| Amount includes GST? (1=Yes, 0=No) | Enter your own figure |
After entering these figures, review net, gst and gross together rather than in isolation — each metric tells a different part of the story. Then rerun the tool with one input adjusted to see which variable has the biggest effect on all three outputs before you settle on a plan.
How to read your results
Net
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
GST
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Gross
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Method & assumptionsAuthoritative sources
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.
- !Forgetting location-specific taxes, fees, eligibility rules or payroll deductions where they apply.
- !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.
- Use the result to prepare better questions for a lender, provider, adviser or employer rather than treating it as a final answer.
Frequently asked
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