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Calculators/

BAS Estimator

2025/26
BAS Details
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BAS Result

BAS Amount Payable

$7,000.00

Payment Required

Net GST

$7,000.00

Effective Rate

6.4%

BAS Breakdown
GST on Sales
$10,000.00
GST Credits
$3,000.00
Net GST
$7,000.00
Net Payable
$7,000.00
GST Calculation
GST on Sales (1A)$10,000.00
GST on Purchases (1B)$3,000.00
Net GST Payable$7,000.00
More Information
Understanding Your BAS

What is a BAS?

A Business Activity Statement (BAS) is a form submitted to the ATO to report and pay GST, PAYG withholding, PAYG instalments, and other tax obligations. Most businesses lodge quarterly, though some lodge monthly.

GST calculation

GST payable is calculated as GST collected on sales minus GST credits on business purchases. The GST component of a GST-inclusive amount is the total divided by 11.

When is BAS due?

Quarterly BAS is typically due 28 days after the end of each quarter. If you lodge electronically through a registered tax agent, you may receive additional time.

PAYG components

PAYG Withholding is the tax you withhold from employees' wages. PAYG Instalments are pre-payments of your own expected income tax liability, calculated by the ATO based on your previous year's income.

Estimate Only: This calculator provides an estimate of your BAS obligation. Actual amounts may differ based on GST-free sales, input-taxed supplies, and other adjustments.

Disclaimer: This calculator provides estimates based on current ATO rates and thresholds for the 2024–25 financial year. It does not constitute professional tax, financial, or legal advice. Your actual liability may differ depending on your individual circumstances. Always consult a qualified tax agent before making financial decisions. Read our terms