India finance
GST Calculator India: Add, Remove, and Split Tax
An India GST calculator helps you add GST to a net price or remove GST from an inclusive total, then show CGST/SGST or IGST depending on supply type. Enorexa’s GST Calculator is a free math helper for quotes and checks — not a substitute for CBIC rules or a tax advisor.
By Enorexa Tools Team · Updated 2026-08-06
Key takeaways
- Use add mode for exclusive prices; reverse mode for inclusive totals.
- Intra-state supplies typically split CGST + SGST; inter-state uses IGST.
- Confirm HSN rates on official sources before filing.
- Try the free Enorexa GST Calculator online.
Add GST vs remove GST
Add GST: start from a taxable value and apply the slab percentage to get tax and gross. Remove GST: start from a tax-inclusive amount and back out the base and tax components.
Getting this direction wrong is a common invoicing mistake. Always match the mode to how the price was quoted.
CGST, SGST, and IGST in plain terms
For many intra-state supplies, GST splits equally into CGST and SGST. For inter-state supplies, IGST usually applies at the full rate. Exact treatment depends on place of supply and current law — verify on official portals.
How to use Enorexa’s GST Calculator
Practical steps:
- Enter the amount
- Choose the GST slab that applies
- Select add or remove mode
- Read the tax split and totals
Official sources (use these for compliance)
Calculators estimate arithmetic. Classification, exemptions, and filing rules come from government sources such as the Central Board of Indirect Taxes and Customs (CBIC) and the GST Portal. Link them from the tool page Sources section when you need the authoritative text.
Frequently asked questions
- Is the Enorexa GST calculator free?
- Yes. You can calculate GST online without signup. It does not replace official filing tools or professional advice.
- Where should I confirm GST rates?
- Confirm HSN classification and rates via CBIC and the GST Portal before invoicing or filing returns.