Business calculators
Nine calculators, each on its own page with the formula, assumptions and source beside the inputs. The calculator code runs in your browser. It does not send your inputs to a server or save them automatically.
Find a question and prepare a checklist.
Planning estimates in AUD. Confirm tax treatment, liability amounts and dates separately. Amounts round to the nearest cent, with exact half cents rounded up, and percentages to two decimal places, with exact halves rounded away from zero; loan estimates allow for calculation precision.
- GST calculator Work out GST, the GST-exclusive amount and the GST-inclusive amount for a wholly taxable supply at 10%, rounded once to cents.
- Business use share calculator Apportion an eligible cost by a supported business use percentage. It does not decide deductibility, depreciation or record sufficiency.
- Margin and markup calculator Gross profit, margin and markup from sales and direct cost, on a consistent GST basis and matching period.
- Break-even sales calculator Whole units and sales required to cover fixed costs from price and variable cost per unit.
- Hourly pricing calculator Required hourly rate before GST from annual costs, target profit and billable hours.
- Budget variance calculator Actual minus budget, the percentage of absolute budget and whether the difference is favourable or unfavourable.
- Monthly loan payment calculator Fixed monthly payment, first-payment interest and principal, and estimated total interest, with no fees or balloon.
- Staff cost calculator Annual and monthly cost of a staff member from wages, the supplied super amount and other annual costs.
- 13-week cash forecast Weekly closing cash from opening cash, receipts and payments, with one delayed receipt and a funding gap against a buffer. Save, load and export as CSV.