GST Calculator for India
Calculate base amount, GST amount and total using an editable GST rate and INR formatting.
Important: The 18% value is only a starting example. GST rates and treatment depend on the goods, services and transaction. Verify the applicable rate before relying on the result.
Pricing, quotations and invoice checks
Use the Tooloos GST / VAT Calculator
The page reuses the current Tooloos calculator and applies task-specific starting values without changing the underlying formula.
GST / VAT Calculator
Calculate tax-inclusive, tax-exclusive and reverse GST, VAT or Sales Tax amounts.
Calculation details
GST Calculator for India: step by step
- 1
Enter the amount and the tax rate you want to use.
- 2
Choose whether tax should be added, removed from an inclusive amount, or calculated backward from a known tax amount.
- 3
Choose a display currency.
- 4
Calculate and review the base, tax and total values.
Common questions
Can the calculator add and remove tax?
Yes. The current Tooloos tax calculator supports adding tax to a base amount, separating tax from an inclusive amount and finding a base from a known tax amount.
Does Tooloos choose the legally correct tax rate?
No. You enter the rate. Tax rates and rules depend on jurisdiction, goods, services and transaction details.
Which currencies are available?
The current tax calculator can format results in INR, USD, GBP, CAD, AUD, AED and EUR.