BAS Calculator. A clearer first-pass view.
Convert quarterly Business Activity Statement figures into an annualised sales, purchases, wages, GST, and cash-flow view for an early commercial-finance conversation.
Help clients organise BAS figures into a transparent annual view before a finance enquiry, while keeping accounting profit, taxable income, and lender assessment clearly separate.
Keep the source figures visible
Quarterly sales
Sales figures entered for each available BAS period.
Purchases and expenses
Relevant BAS purchase amounts used to build the annual activity view.
Wages
Quarterly wages used to make the operating-cost picture more visible.
GST position
GST collected and paid as recorded in the entered BAS periods.
Turn inputs into a reviewable signal
Annualised sales
A full-year sales indication based on the periods entered.
Activity margin
A simple sales less entered purchases and wages view.
Quarterly trend
Visibility over the consistency or volatility of sales across the entered periods.
Early servicing context
A structured starting point for a broker or lender's low-doc review.
Four stable BAS quarters
A trading business records $2.40 million of annual sales across four BAS periods, with $1.32 million of purchases and $480,000 of wages entered for the same period.
Simple activity margin = $2,400,000 − $1,320,000 − $480,000 = $600,000, or 25% of entered sales.
Four complete quarters are already available, so no extrapolation is required.
Sales less the purchases and wages entered in this simplified example.
A starting signal that still requires full expense and financial review.
Move from raw figures to a better review conversation
The tool organises an early scenario. Keep the evidence, assumptions, and professional review attached to the result.
Enter each BAS period
Use the figures from the lodged or prepared statements without blending quarters together.
Review the annual picture
Check sales, purchases, wages, GST, and quarter-to-quarter movement.
Hand off for assessment
Use the summary as supporting context for an accountant, broker, or lender review.
Keep the result in context
BAS figures should be entered consistently and checked against the underlying statements.
The activity margin is a simplified cash-flow signal and is not a profit calculation or tax return.
Different lenders use different BAS periods, annualisation methods, margins, and verification requirements.
Seasonality, one-off quarters, GST basis, associated entities, tax debt, and omitted expenses require separate review.
Useful for accountants & business advisers
Help clients organise BAS figures into a transparent annual view before a finance enquiry, while keeping accounting profit, taxable income, and lender assessment clearly separate.
About the BAS Calculator
Use these answers to understand the tool's purpose before relying on its indicative output.
Can BAS statements support a low-doc commercial finance application?
They can form part of an alternative-documentation assessment, depending on the lender, product, period covered, consistency of the statements, and the rest of the application evidence.
Is BAS turnover the same as business profit?
No. Turnover records sales activity. Profit depends on the complete income and expense position, accounting treatment, and relevant adjustments.
How many BAS quarters should be entered?
Enter every relevant and reliable period available. The lender or adviser reviewing the scenario will decide which periods and annualisation method are acceptable.
Use the calculator, then keep the assumptions attached to the result.
The result is an indicative workflow signal. Broker, adviser, valuer, accountant, and lender review still applies to the full scenario.