Free GST Calculator
GST Calculator
Calculate GST instantly — inclusive or exclusive. Get CGST, SGST, and IGST breakdown in real time.
Enter Details
Amount does not include GST — GST will be added on top.
💡 Tip: Once you know your GST amount, use our free Invoice Generator to create a GST-compliant tax invoice instantly.
GST Breakdown
Base Amount₹ 0.00
GST Amount (18%)₹ 0.00
Tax Split — Intrastate
CGST (9%)₹ 0.00
SGST (9%)₹ 0.00
Tax Split — Interstate
IGST (18%)₹ 0.00
Total Amount₹ 0.00
How it works
Exclusive (Amount + GST): GST = Amount × Rate ÷ 100. Total = Amount + GST.
Inclusive (Amount with GST): GST = Amount × Rate ÷ (100 + Rate). Base = Amount − GST.
Intrastate supply: GST splits equally as CGST + SGST.
Interstate supply: Full GST applies as IGST.
Need a GST-Compliant Invoice?
Use our free Invoice Generator — add items, apply GST automatically, and download or share via WhatsApp in seconds.