Free GST Calculator Online
Calculate taxable value, GST amount, CGST/SGST or IGST breakup and final invoice value in seconds.
Enter GST details
Choose mode, amount, rate and tax type. The result updates automatically.
Calculation details
Need a GST invoice or filing support?
Use the calculator for quick GST breakup. For GST registration, return filing or invoice compliance, get professional support.
Use this GST calculator in 3 steps
Select the calculation mode, choose the GST rate and review the tax breakup.
Choose mode
Add GST to taxable value or remove GST from a GST-inclusive amount.
Select GST rate
Use standard GST rates or enter a custom rate where required.
Check breakup
Review taxable value, GST amount, CGST/SGST or IGST and final value.
Continue with business tools
Use related tools for invoices, tax and business documentation.
Yes, the GST calculator is free to use without login.
Yes. Select “Remove GST from GST-inclusive amount” to calculate taxable value and GST amount from a total amount.
Yes. Select CGST + SGST for intra-state breakup or IGST for inter-state tax amount.