GST Calculators

Invoicing

Invoice GST Calculator

Calculate GST across multiple line items with different GST statuses and rounding rules.

BAS

BAS Estimator

Estimate your Business Activity Statement GST amounts and check your next deadline.

Bulk

Bulk GST Calculator

Process multiple amounts at once — add or remove GST in bulk and export as CSV.

Registration

GST Registration Threshold

Check if your business needs to register for GST based on annual turnover and business type.

Pricing

GST Pricing Strategy Calculator

Determine the right selling price when GST is a factor. Compare margins and see absorb vs pass-on analysis.

LCT

Luxury Car Tax Calculator

Calculate Luxury Car Tax on vehicles above the LCT threshold with GST breakdown.

Property

GST on Property Calculator

Calculate GST on property sales using standard method or margin scheme. Includes withholding rules.

Fuel

Fuel Tax Credit Calculator

Calculate fuel tax credits for diesel, petrol, and LPG based on usage type and current ATO quarterly rates.

WET

Wine Equalisation Tax Calculator

Calculate the 29% wine equalisation tax, GST, and producer rebate for wine sales.

Credits

Input Tax Credit Checker

Interactive decision tree to check if you can claim GST on a business purchase as an input tax credit.

Travel

Tourist Refund Scheme (TRS)

Calculate your GST and WET refund when departing Australia under the Tourist Refund Scheme.

Classification

GST Classification Tool

Interactive step-by-step tool to determine if your product or service is taxable, GST-free, or input-taxed.