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Accounter

BAS Calculator (Australia)

Estimate the amounts on your Business Activity Statement: GST on sales and purchases, PAYG withholding (PAYGW) and PAYG instalments (PAYGI). All figures are in Australian dollars (AUD).

Estimate only, not lodgement. Accounter does not lodge BAS and does not run STP (Single Touch Payroll). Lodge your BAS through the ATO, or through your registered tax or BAS agent.

GST on sales
$0.00
GST on purchases
$0.00
Net GST
$0.00
PAYGW
$0.00
PAYGI
$0.00
Estimated amount payable
$0.00

How the estimate works

  • GST on sales and on purchases is one eleventh of the GST-inclusive amount (GST rate of 10%).
  • Net GST is GST on sales minus GST on purchases. A negative result means GST credits exceed GST collected.
  • PAYGW and PAYGI are the amounts you enter; they are added to net GST.
  • Only enter purchases you can claim GST credits on. Check your own situation with the ATO or a registered agent.

Source: Australian Taxation Office (ATO): GST/BAS worksheet. Last checked 13 October 2026.