GST Add & Remove Calculator

Add GST to a base amount or extract it from an inclusive price using a selected rate. See the total tax and illustrative intra-state or inter-state split.

Planning estimate. Rates and returns are assumptions; tax and scheme rules are not assessed for your individual circumstances.

How to use this calculator

Choose Add GST or Remove GST, enter the amount and select the rate applicable to your scenario. Rate options are inputs, not a classification of your goods or services.

How the estimate is calculated

Adding GST multiplies the base by the selected percentage. Removing GST divides the inclusive amount by one plus the decimal rate. The tool displays CGST/SGST halves and an alternative IGST amount.

Assumptions and exclusions

The calculator does not determine the legally applicable rate, supply location, input tax credit, cess, invoice requirements or rounding rules. Confirm those separately.

Use GST in Finance Calculator.

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GST Add & Remove Calculator

Your inputs

How to use this calculator

How the estimate is calculated

Assumptions and exclusions

Use GST in Finance Calculator.