Calculate GST in seconds. Perfect for electricians, plumbers, builders, and all tradies. No registration required — completely free.
Get accurate GST calculations in seconds. No complex forms, no waiting.
Works perfectly on your phone. Calculate GST on-site, in the ute, or at the office.
Uses the current 10% GST rate. Updated automatically with ATO changes.
Goods and Services Tax (GST) is a 10% tax on most goods and services sold in Australia. As a tradie, you charge GST on your services and can claim GST credits on your business purchases.
You must register for GST if your annual turnover is $75,000 or more. You can also register voluntarily if your turnover is less than this amount.
Most small tradies lodge quarterly Business Activity Statements (BAS). Quarter end dates are: Sep 30, Dec 31, Mar 31, Jun 30. Lodging is usually due 28 days after quarter end.
You can claim GST credits on most business purchases including: tools, equipment, vehicle expenses (business portion), materials, insurance, phone/internet, and other business expenses.
Stop calculating GST manually. Chippie automatically handles GST on all quotes, invoices, and expenses. Plus, generate BAS reports in one click.