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GST

GST & BAS Set-Aside Calculator

A GST planning calculator for Australian businesses and sole traders who need to avoid spending cash that may belong in the next BAS.

Decision report included

Review the decision summary, key metrics, assumptions, and action items, then create a printable report for a lender, broker, household, or client discussion.

Use the report to document the scenario, explain the tradeoff, and agree on the next action.

Inputs

Enter your scenario.

Taxable sales$66,000

Sales subject to GST for the BAS period.

Sales include GSTYes

Choose Yes if the sales figure already includes GST.

GST-free sales$8,000

Sales with no GST collected.

Creditable purchases$17,600

Business purchases that include claimable GST credits.

Purchases include GSTYes

Choose Yes if purchases already include GST.

Cash buffer10.00%

Extra buffer to hold above estimated GST payable.

BAS frequencyQuarterly

How often this estimate is reviewed.

Decision Summary

GST set-aside amount

$4,840

Estimated net GST for the period is $4,400 after $1,600 in input credits. With buffer, set aside $4,840.

Decision index

Watch

Key metric comparison

GST collected$6,000

Input tax credits$1,600

Net GST payable$4,400

Set-aside amount$4,840

Annualised taxable turnover$240,000

GST collected

Watch

$6,000

GST estimated on taxable sales.

Input tax credits

Watch

$1,600

GST credits estimated from creditable purchases.

Net GST payable

Watch

$4,400

GST collected less input tax credits.

Set-aside amount

Watch

$4,840

Net GST payable plus the selected cash buffer.

Annualised taxable turnover

Watch

$240,000

Taxable sales annualised from the BAS period.

GST-to-sales ratio

Watch

7.3%

Net GST compared with taxable sales excluding GST.

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Assumptions

Review the assumptions behind the result.

Australian GST is modelled at the standard 10% rate.
Input credits are estimated only on purchases marked as creditable.
The calculator does not determine whether supplies are taxable, GST-free, or input taxed.

How To Use The Result

Turn the output into a practical next step.

Use GST-inclusive sales if your bank deposits include GST.
Exclude GST-free sales from GST collected.
Keep the set-aside amount separate from operating cash.

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