Calculate your Business Activity Statement (BAS) GST amounts. Simplify your quarterly or monthly BAS lodgment for Australian businesses.
Note: This calculator is for estimation purposes. Always verify with your accountant or the ATO.
Enter Your BAS Period Amounts
Sales
AU$
AU$
AU$
Purchases
AU$
AU$
E.g., equipment, vehicles, property
About BAS
A BAS is a form Australian businesses use to report and pay GST, PAYG withholding, and other tax obligations to the ATO. Most businesses lodge BAS quarterly, though some lodge monthly.
Quarterly: Due by 28th day of month following quarter end Monthly: Due by 21st day of following month Check with the ATO for specific deadlines and any extensions available.