Gross-Up Calculator Explained for Australians
Works out the gross amount needed to receive a set amount after tax. This guide walks through what each input means, the formula behind the answer and a worked example using typical Australian figures. You can follow along in the free Gross-Up Calculator.
Why it matters
Australian businesses deal with GST at 10%, BAS reporting, PAYG withholding for staff, super guarantee obligations and company or individual tax depending on structure. Getting pricing and margins right is the difference between busy and profitable.
What you need to enter
The calculator asks for 2 inputs. The table shows each one with the example value used later in this guide.
| Input | Example value |
|---|---|
| Amount you want to receive ($) | 1000 |
| Tax rate (%) | 30 |
The formula
Gross = net ÷ (1 − tax rate).
Worked example
Entering the example values above gives these results:
| Result | Value |
|---|---|
| Gross amount required | $1,428.57 |
| Tax component | $428.57 |
The headline figure is $1,428.57 (gross amount required). Change any input in the calculator and every result updates instantly, so you can test different scenarios side by side.
How the gross amount required changes with amount you want to receive
The table below keeps every other input at the example value and moves only “Amount you want to receive ($)” up and down by 10% and 20%. It shows how sensitive the gross amount required is to that one figure.
| Amount you want to receive ($) | Gross amount required |
|---|---|
| 800 | $1,142.86 |
| 900 | $1,285.71 |
| 1,000 | $1,428.57 |
| 1,100 | $1,571.43 |
| 1,200 | $1,714.29 |
At 800 the result is $1,142.86; at 1,200 it is $1,714.29. If a small change in this input moves the answer a lot, it is worth double-checking that figure before you rely on the result.
A practical tip
Use your marginal rate plus the Medicare levy for personal income.
Keep going
Before relying on the number, read Gross-Up Mistakes Australians Make and How to Avoid Them. You might also find these guides useful:
- GST Calculator Explained for Australians
- How the Profit Margin Calculator Works (With a Worked Example)
- Markup Calculator: Formula, Example and What the Result Means
Frequently asked questions
- When do I need to register for GST?
- When your annual GST turnover reaches $75,000, or $150,000 for non-profits. Taxi and ride-share drivers must register regardless of turnover.
- What company tax rate applies?
- 25% for base rate entities with turnover under $50 million, and 30% for other companies.
- Should I talk to an accountant?
- Yes, for structure, tax planning and compliance. These calculators give quick estimates only.
Run your own numbers in the Gross-Up Calculator.
Open the calculatorGeneral information only. Rates and thresholds change, usually on 1 July. Confirm current figures with the ATO or the relevant authority, and get personal advice for decisions about your situation.