GST Calculator (India)
Add or remove GST with CGST/SGST split
Runs in your browser Instant results 100% free
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About the GST Calculator (India)
Quickly work out GST for invoices, quotes and prices. Add GST to a base price or find the base price inside a GST-inclusive amount, with the CGST and SGST split for sales within a state and IGST for sales between states.
How to use it
- Enter the amount.
- Choose the GST rate and whether to add or remove GST.
- Read the net amount, GST, total and the CGST/SGST or IGST split.
Frequently asked questions
How is GST removed from an inclusive price?
Base price = amount × 100 ÷ (100 + rate). For ₹1,180 at 18%, the base is ₹1,000 and GST is ₹180.
When do I charge CGST + SGST vs IGST?
CGST + SGST for sales within the same state; IGST for sales to another state.
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