GST Calculator
Calculate Goods and Services Tax seamlessly. Supports inclusive/exclusive modes, all tax slabs (including the new 40% rate), and Intra-State / Inter-State splits.
Transaction Details
Enter the amount and select calculation type
Total Final Amount
Base Price + GST
Calculations updated as per Sept 2025 GST Council rules.
Understanding GST
Key concepts about Goods and Services Tax in India.
⚖️ Intra-State vs Inter-State
Intra-State (Same State): When the supplier and the place of supply are in the same state or union territory. GST is split equally into CGST (Central) and SGST (State).
Inter-State (Different State): When the supplier and the place of supply are in different states. A single IGST is charged and goes to the Central Government.
📊 New 2025 GST Slabs
As per the 56th GST Council meeting (effective Sept 2025), the 12% and 28% slabs have been abolished for most goods.
The structure is now simplified to three core rates — 0%, 5%, 18% — and a new 40% slab for luxury and sin goods.
🔄 GST Exclusive vs GST Inclusive
The price quoted does not include GST. Tax is added on top. E.g., ₹10,000 exclusive of 18% GST means final invoice is ₹11,800.
The price quoted already includes GST. E.g., ₹11,800 inclusive of 18% GST breaks down to Base ₹10,000 + GST ₹1,800.